U.S. PATENT AND TRADEMARK OFFICE
Information Products Division |
U.S. Patent Classification System - Classification Definitions
as of June 30, 2000
Patents classified in a subclass may be accessed by either clicking on
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(definitions have been obtained from the
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Electronic Products Branch)
Class 219
ELECTRIC HEATING
Class Definition:
This class includes all those devices commonly known as
electric heaters, electric-heating metal working apparatus,
electrically-heated tools and instruments. Processes are
classified with the apparatus unless otherwise indicated by
the subclass title.
This is the generic class for electric heating devices, per
se. Devices and systems equipped with electric heating means
in which the electric heating means is combined with or
includes specific other art structure whereby the heated
material is withdrawn, stored or otherwise utilized will be
classified in the appropriate other art class to which it
pertains and cross referenced back to Class 219.
LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
An example of other classes as mentioned above in the Class
Definition is Class 122, Liquid Heaters and Vaporizers in
which such terms as steam dome, super heaters, steam
separators, condensers, traps, etc., are considered to be art
structure over and beyond the mere heating of a liquid and
comprising specific means for further storing or utilizing
the liquid or vapor resulting from a heating step and
sufficient to exclude the claimed subject matter from this
class.
The liquid heaters to be found in this class, subclasses 281+
are very similar to those classified in Class 122 and in
Class 126, subclasses 344+. The general line to be followed
in distinguishing between this and those classes is as
follows: Where the claims recite specific electrical means
for heating a liquid only and the end result recited is a
heated liquid only and no further means is claimed for
withdrawing the liquid for further use the device will be
considered a liquid heater for this class. For an
understanding of the lines between Classes 122 and 126
consult the class definitions and the notes thereunder.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
5, Beds, subclass 284 for bed structures with devices for
heating or cooling of, and subclass 421 for devices for
supporting bed clothing with heating means.
12, Boot and Shoe Making, subclass 1 for miscellaneous shoe
machinery with heaters, subclasses 32.1, 33.2 and 41.5 for
sole machines with electric heaters, subclasses 53.1, 53.3
and 69.7 for heel machines with electric heaters, subclass
78.5 for sole and/or heel burnishing machines with heating
means, and subclasses 114.2, 114.6, 116.2, 117.4, and 129.4
for tools or forms used in shoe manufacturing with heating
means.
15, Brushing, Scrubbing, and General Cleaning, subclass 1.5
for electrostatic cleaning, subclasses 300.1+ for cleaning by
air blast or suction wherein the fluid may be heated and
subclasses 104.001+ for implements which may be heated.
19, Textiles: Fiber Preparation, subclass .27 for drying
apparatus.
26, Textiles: Cloth Finishing, 3 for singeing devices which
may utilize electric heating means.
30, Cutlery, subclass 32 for wire razor devices, subclasses
34.05+ for razors combined with heated blade, and subclass 42
for the combination where the blade is movable.
34, Drying and Gas or Vapor Contact With Solids, 519 for
processes which may utilize electric heaters particularly
subclass 283 for drying the hair on the head and the
subclasses under the title "Apparatus" for particular drying
apparatus which may utilize electric heating means.
36, Boots, Shoes, and Leggings, subclass 2.6 for boots and
shoes with heating means.
38, Textiles: Ironing, or Smoothing, 74 for flat irons
which may include electrical heating devices by name only.
44, Fuel and Related Compositions.
48, Gas: Heating and Illuminating, subclass 65 for cupola
gas generators wherein electric current is used for heating
purposes, and subclass 103 for retorts in which is located an
electric heater for gasifying the oil.
60, Power Plants, subclass 523 for a motor operated by the
expansion and contraction of a unit mass where the expansion
is caused by an electrical heating means.
62, Refrigeration, particularly subclass 148, 159+, 167, 238,
275+, 324+, and 351 for heating means associated with
refrigeration apparatus.
65, Glass Manufacturing, appropriate subclasses for glass
working apparatus utilizing electrical heating means
particularly subclass 40 for means employing dielectric or
joule effects and subclasses 152+ for fusion bonding
devices.
70, Locks, appropriate subclasses for heater lock
combinations according to the particular lock structure.
72, Metal Deforming, appropriate subclasses for heating metal
by a means other than electricity and deforming it.
73, Measuring and Testing, appropriate subclasses for
measuring or testing devices with electrical heating means
for testing purposes or for maintaining constant
temperature.
75, Specialized Metallurgical Processes, Compositions for Use
Therein, Consolidated Metal Powder Compositions, and Loose
Metal Particulate Mixtures, for patents claiming a metal
composition, e.g., an alloy or a composition having a
continuous phase of free metal made by consolidating metal
particles.
81, Tools, appropriate subclasses for particular tool
structure which may be combined with heating means.
83, Cutting, 170 for cutting apparatus combined with means
to modify or control the temperature of the apparatus or
work.
96, Gas Separation: Apparatus, appropriate subclasses, for
gas separation apparatus having heating or cooling means.
99, Foods and Beverages: Apparatus takes food support means,
peculiar to a food, shape, or condition, (e.g., can, jar,
bottle, or slice holders, spits, griddles, waffle irons,
sandwich grills, article confining or conforming supports),
including a mechanism for manipulating food during cooking,
other than mere agitation or stirring (e.g., conveying or
bodily moving), or including a mechanism for treating food
(e.g., basting, compressing, molding, drip, or gravy
segregating), and, in any case, irrespective of whether or
not a heat, steam, or vapor generator or enclosure is
claimed; 324 for cooking apparatus.
100, Presses, 92 for a press having an additional heating,
cooling, or drying means to treat material or subclass 102
for a press that may be combined with an electrical heating
means.
101, Printing, see 3.1, especially subclasses 8, 9+, 21, 25,
27, and 31 for embossing or penetrating devices utilizing
heated dies.
104, Railways, subclass 15 for electric welders for track
joints and subclass 279 for track clearing devices comprising
rail heaters.
105, Railway Rolling Stock, especially subclass 451 for
heating devices which may be electrical.
110, Furnaces, subclass 194 for cremation apparatus that may
utilize electric heating means; and subclass 250 for a refuse
incinerator provided with an electric heater.
118, Coating Apparatus, appropriate subclasses, especially
subclass 47 for coating burning apparatus, and subclasses
50.1, 58+, 620+, 663+, and 723+ for coating devices with
means for applying electrical or radiant energy to work and
or coating material, particularly subclasses 641+ for radiant
heating devices.
119, Animal Husbandry, 308 for a brooder warmed by an
electrical component, or subclasses 318+ for an incubator
warmed by an electrical component.
122, Liquid Heaters and Vaporizers, appropriate subclasses
for steam generating devices which may utilize electric
heating means.
123, Internal-Combustion Engines, particularly 543 for means
for heating the carburetor, subclass 142.5 for the
combination of an internal combustion engine combined with
external heating means for heating the engine or some adjunct
thereof and subclass 145 for incandescent igniters.
126, Stoves and Furnaces, appropriate subclasses for
structural features peculiar to stoves and furnaces, see
particularly subclass 273.5 for domestic ovens with heat
accumulators and subclass 400 for heat accumulators, per se.
128, Surgery, appropriate subclasses for various instruments
combined with heating means or designed for the utilization
of heat energy for therapeutic treatment of the human body.
131, Tobacco, subclass 185 for tobacco users' appliances
with igniter means.
132, Toilets, subclass 7 for methods of hair treating
comprising permanent waving with heat and subclass 118 for
hair combs with heaters and subclass 148 for combs combined
with other features; see also subclasses 31+ for hair
crimpers or curlers which may include heaters.
134, Cleaning and Liquid Contact With Solids, 105 for
apparatus with heating, cooling or heat exchange means.
136, Batteries: Thermoelectric and Photoelectric for
batteries in that class having heating means.
137, Fluid Handling, subclass 341 for electric heating means
for the system.
138, Pipes and Tubular Conduits, subclass 33 for electric
thawing or freeze protection means therefor.
140, Wireworking, subclass 112 for processes for joining of
wires by electric welding.
141, Fluent Material Handling, With Receiver or Receiver
Coacting Means, subclass 82 for the treatment of material by
heating or cooling.
148, Metal Treatment, particularly subclass 520, 525, and 565
for processes of significant heat treatment of metal to
modify or maintain the internal physical structure (i.e.,
microstructure) or chemical property of metal wherein
electrical heating is utilized. See Lines With Other
Classes, "Metal Casing, Metal Fusion Bonding, Machining, or
Working Classes" to determine what constitutes significant
heat treatment.
164, Metal Founding, appropriate subclasses for metal casting
apparatus which may employ an electric heater.
165, Heat Exchange, appropriate subclasses for systems
comprising both heating and cooling means or heat transfer,
particularly 200 for automatic control; subclass 42 for
vehicle heating and cooling and subclasses 47+ for structural
installations such as radiant building panels.
166, Wells, subclass 60 for well structure with an electric
heater in the well.
174, Electricity: Conductors and Insulators, appropriate
subclasses for insulator devices and structural details of
electrical conductors, per se.
175, Boring or Penetrating the Earth, subclass 16 for an
electrical heating process or device for forming a hole in
the earth by directly applying heat to fluidize or comminute
the material forming the earth. (See Lines With Other
Classes and Within This Class, in the class definition of
Class 175 for the line between Class 175 and Class 219).
178, Telegraphy, subclass 94 for pyros:graphic code
recorders.
184, Lubrication, subclass 104 for heating and cooling
devices for lubricators.
191, Electricity: Transmission to Vehicles, subclass 62 for
trolley heads with heated ice clearers or preventers.
196, Mineral Oils: Apparatus, subclass 121 for vaporizing
devices with electric heating means.
200, Electricity: Circuit Makers and Breakers, for generic
circuit maker and breaker structure, or 308 for an
electrical switch having indicator means.
201, Distillation: Processes, Thermolytic, subclass 19 for
a thermolytic distillation in which electrical energy is
applied.
204, Chemistry: Electrical and Wave Energy, particularly
subclass 210, 236, 239, 241, 262, and 274 for electrolytic
apparatus utilizing heating or cooling means.
210, Liquid Purification or Separation, 175 for devices with
heating or heat exchange means.
216, Etching a Substrate: Processes, with the use of a
plasma, note 67. The use of a cold plasma, which is a
chemical reaction involving reactive ions and an article or
substrate is not proper for Class 219, Electric Heating.
However, cold plasma is proper for Class 216, Etching a
Substrate: Processes. The use of a high temperature thermal
plasma which removes or alters material by thermal means is
proper for Class 219, Electric Heating.
221, Article Dispensing, subclass 143 for dispensing devices
with electrical ignition means and subclass 150 for such
devices with article treatment involving heating or cooling.
222, Dispensing, subclass 146 for dispensers with heating or
cooling.
223, Apparel Apparatus, subclass 26 for heated hat forms,
subclasses 51, 70, 73, and 76 for apparatus including heating
and steaming means and subclass 79 for heated glove forms.
236, Automatic Temperature and Humidity Regulation,
appropriate subclass for heating systems beyond the scope of
Class 219 and involving automatic temperature control
devices.
237, Heating Systems, appropriate subclasses for complete
heating systems in which the heat source may be electrical.
239, Fluid Sprinkling, Spraying, and Diffusing, 128 for
heating or cooling means for the fluid or system.
244, Aeronautics, subclass 134 for ice prevention devices
utilizing electric heating means.
250, Radiant Energy, 316 for infrared or thermal pattern
recorders or document copiers, subclass 337 for a radiant
energy electric signalling device responsive to luminous
energy emitted from a heated luminophor irradiated by
invisible radiation subclass 352 but conduction to or from
some part of an infrared responsive electric signalling
means, subclass 429 for temperature control of contained
supported transferred fluent material, subclass 443.1 for a
support for an object to be irradiated with charged particles
with heat transfer to or from the object, and subclass 495.1
for plural invisible radiation sources including an infrared
source, subclass 504 for an infraradiation source with a
radiation modifying member and subclass 238 for photocells
with temperature control.
261, Gas and Liquid Contact Apparatus, subclass 139 and 142
for such apparatus with an electrical external heat supply.
266, Metallurgical Apparatus, appropriate subclasses for such
apparatus with electrical heating devices.
285, Pipe Joints or Couplings, subclass 41 for such devices
with heating or cooling means.
290, Prime-Mover Dynamo Plants for prime mover dynamo plants
for producing heat.
307, Electrical Transmission or Interconnection Systems, 112
for a residual switching system.
310, Electrical Generator or Motor Structure, 341 for
piezoelectric crystals with temperature control means in
which electrical circuit connections and the crystal are
claimed.
312, Supports: Cabinet Structure, subclass 236 for such
structures with heating, cooling or heat exchange means.
313, Electric Lamp and Discharge Devices, appropriate
subclasses for electric lamp, filament or cathode heaters,
particularly 11 including indented subclass 14 for
pyroelectric devices and subclasses 15+ for such devices with
electric heater temperature modifier means.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, particularly 26 for such devices with
temperature modifying means.
315, Electric Lamp and Discharge Devices: Systems,
particularly 46 49, 50, 94+, and 112+ for systems with
heated filaments, cathodes or device temperature modifiers.
323, Electricity: Power Supply or Regulation Systems, for a
generic class of electrical systems wherein a single
electrical source is coupled to a single electrical load
circuit and means are provided which control the magnitude or
level of the current or voltage of either or both of said
circuits, especially subclass 236 for other than an
electrical zero switching output level condition responsive
(e.g., heat, etc.) circuit.
331, Oscillators, subclass 70 for oscillator with
temperature modifier.
336, Inductor Devices, 55 for inductors with temperature
modifiers.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses for specific switch
structure with thermal actuating means.
338, Electrical Resistors, appropriate subclasses for
electrical resistors, per se. The mere claiming of a
resistor having a heat insulating or heat conducting casing
or housing does not exclude Class 338. However, as between
Classes 219 and 338 the combination of a resistor used for
heating purposes surrounded or incased by the structure to be
heated or a resistor with structure or configuration for
distributing, directing or concentrating the heat produced by
the resistance is classified in this class (219), especially
200. See also Lines With Other Classes and Within This
Class, "Electrical Resistance Heaters," in the class
definition of Class 338 for a more detailed treatment of the
line between the two classes.
340, Communications: Electrical, subclass 309.15 for a timer
controlled system, subclasses 384.1+ for an audible signaling
device, especially subclass 387.1 for weatherproofing (e.g.,
means to melt sleet off of a signal device, etc.), subclasses
577+ for a flame condition responsive system, subclasses 584+
for a thermal condition responsive system, subclass 600 for
radiant energy condition responsive system, subclasses 635+
for electrical apparatus condition responsive system,
especially subclass 640 for a heater element condition
responsive system, subclass 655 for a condition responsive
system indicating heating circuit energization, subclasses
815.4+ for visual indication systems or subclasses 825+ for
miscellaneous remote control systems.
343, Communications: Radio Wave Antennas, subclass 704 for
antennas with ice clearer or preventers which may utilize
electric heaters.
346, Recorders, subclass 76.1 for thermal recording of
phenomenon.
347, Incremental Printing of Symbolic Information, 171.1 for
thermal marking processes or apparatus.
355, Photocopying, 3 for electrophotography devices
utilizing heating means.
361, Electricity: Electrical Systems and Devices, 1 for
safety and protection of systems and devices; indented
subclasses 24, 25+, 32, 34, 37, and 103+ provide thermal
sensing devices in various circuits or systems; subclasses 99
and 211 for combinations including thermal relays and control
circuits for thermal relays; subclass 158 for thermal
indicating instrument; subclasses 161+ for control circuits
including a thermal device and subclasses 247+ for igniting
systems.
362, Illumination, 92 for the combination of illuminating
means and a heating device.
373, Industrial Electric Heating Furnaces, for furnaces which
are especially adapted to metallurgical and related work.
Such furnaces are generally characterized by electrical
heating means within the chamber containing the material to
be heated, the heating means being either an arc, a
resistance, the material itself or a combination of such
means and are further characterized by adaptation for
operation on a granular material, such as crushed ore or for
handling molten material fusing at a very high temperature,
the material in both cases being received immediately within
the body of the furnace.
374, Thermal Measuring and Testing, including electric
heating arrangements to perfect a measurement or test or to
maintain a constant temperature.
401, Coating Implements With Material Supply, 1 for a
hand-manipulated coating implement with means to heat the
material supply contained therein.
405, Hydraulic and Earth Engineering, subclass 56 and 131
for devices for heating the earth which may use electrical
heating means; and subclass 234 for a heating means employed
in the installation of piling.
422, Chemical Apparatus and Process Disinfecting,
Deodorizing, Preserving, or Sterilizing, subclass 21 and 22+
for processes of sterilizing with electric energy subclasses
186.19 and 186.2 for radiant energy chemical reactors with
heating or cooling means; and subclasses 242 and 295+ for
autoclaves.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, appropriate subclasses for a molding machine for
shaping or reshaping nonmetals combined with means to heat or
cool, see subclass 407 and the search notes thereunder.
427, Coating Processes, 457 for coating processes utilizing
direct application of electrical magnetic, wave, or
particulate energy.
429, Chemistry: Electrical Current Producing Apparatus,
Product and Process, subclass 62 for battery having a
temperature control and subclass 120 for battery having heat
exchange feature.
431, Combustion, 258 for a burner having an electrical
heater or igniter.
432, Heating, appropriate subclass for a residual heating
apparatus that may include a broadly recited electrical
heater as a source of heat.
452, Butchering, subclass 73 for hot wire singers for fowl.
454, Ventilation, especially subclass 83, 93, 121+, and 198
for condensation prevention devices which may use hot or
heated air blown on a window or windshield.
606, Surgery, subclass 2.5 for subject matter relating to
removal of a calculus (e.g., stone) from the body wherein the
calculus is fractured or disintegrated by use of light
energy.
901, Robots, subcollection 10 for a robot arm in which a
sensor physically contacts and follows the work contour to
control the arm movement and subcollection 42 for an art
collection of welding robots.
D23, Environmental Heating and Cooling, Fluid Handling and
Sanitary Equipment, 314 for heating equipment.
SUBCLASSES
Subclass:
50
This subclass is indented under the class definition.
Subject matter relating to the electrical heating of metal.
(1) Note. The heating in this and indented subclasses is
often, but not necessarily, accompanied by working of the
metal.
(2) Note. The metal heated is a workpiece and is separable
and distinct from the heater, which is a tool. However, heat
may be developed within the metal by the passage of electric
current.
(3) Note. The heating may be for welding, brazing,
soldering, heat treating or other purpose.
(4) Note. The art in miscellaneous subclass 50 relates, for
example, to mere heating of metal by the passing of an
electric current through it.
(5) Note. Subclasses 7.5, 8.5, 9.5, and 50 to 162 were
formed in 1956 by making official some unofficial digests
which had been established during the previous two decades by
the Examiners of Divisions 37 and 60. A caveat is given:
While it is believed that the titles and definitions are
reasonably correct, no assurance can be given that all of the
patents, issued prior to the date of reclassification, are in
the proper subclass, since the individual patents were not
read during the reclassification project. Consequently, in
making a thorough search in these subclasses, it is advisable
to investigate every subclass which may possibly be pertinent
and not, in order to shorten the search, to rely upon the
principle of superiority of subclass subject matter because
of position in the schedule, since the principle is
applicable only in classes where each patent has been
analyzed and placed in the schedule in accordance with that
portion of the disclosed subject matter which is claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
600 for this subject matter where the heating is inductive
heating.
678 for microwave heating.
764 for capacitive dielectric heating.
SEE OR SEARCH CLASS:
148, Metal Treatment, particularly subclass 520, 525, and 565
for processes of significant heat treatment of metal to
modify or maintain the internal physical structure (i.e.,
microstructure) or chemical property of metal wherein
electrical heating is utilized. See Lines With Other Classes,
"Metal Casing, Metal Fusion Bonding, Machining, or Working
Classes" to determine what constitutes significant heat
treatment.
373, Industrial Electric Heating Furnaces, appropriate
subclasses where the metal is heated in an electric furnace.
428, Stock Material or Miscellaneous Articles, subclass 934
for metallic stock produced by an electrical process, and
subclass 939 for stock having a molten or fused coating.
483, Tool Changing, generally for a process or apparatus
including a tool transfer means combined with either a tool
support or storage means. A process or apparatus for
electric heating wherein the sole significantly recited
feature is changing a tool (e.g., a nonconsumable electrode)
is properly classified in Class 483, and may be cross
referenced into this class (Class 219, Electric Heating).
Subclass:
51
This subclass is indented under subclass 50. Subject matter
relating to the manufacture of chain link.
SEE OR SEARCH CLASS:
59, Chain, Staple, and Horseshoe Making, 1, and the search
notes thereto, for miscellaneous chain making, not involving
significant electric heating.
Subclass:
52
This subclass is indented under subclass 51. Methods.
Subclass:
53
This subclass is indented under subclass 50. Subject matter
relating to the making of rail bonds.
(1) Note. The bond may be for the purpose of furnishing a
low resistance electrical shunt around the mechanical joint
between rail sections of a railroad track or it may be for
the purpose of mechanically uniting rail sections.
Subclass:
54
This subclass is indented under subclass 53. Subject matter
in which the rail bond is made by means of an arc weld.
Subclass:
55
This subclass is indented under subclass 53. Subject matter
relating to resistance welding methods.
SEE OR SEARCH THIS CLASS, SUBCLASS:
53 for resistance welding apparatus for making rail bonds.
Subclass:
56
This subclass is indented under subclass 50. Subject matter
relating to the bonding of wire or bar.
(1) Note. The wire, for example, may be part of a fabric
mesh, or the bar may form a grating or a metal window.
SEE OR SEARCH THIS CLASS, SUBCLASS:
156 for mere electric heating of rods or bars.
SEE OR SEARCH CLASS:
140, Wireworking, subclass 112 for this subject matter not
having significant welding.
Subclass:
56.1
Of wire leads:
This subclass is indented under subclass 56. Subject matter
wherein the wire is connected to or from a circuit element.
Subclass:
56.21
By microbonding:
This subclass is indented under subclass 56.1. Subject
matter wherein the bonding is produced between miniature or
microminiature workpieces.
Subclass:
56.22
Methods:
This subclass is indented under subclass 56.1. Subject
matter including processes of bonding wire leads.
Subclass:
57
This subclass is indented under subclass 56. Subject matter
relating to butt bonding.
SEE OR SEARCH THIS CLASS, SUBCLASS:
101 for miscellaneous butt bonding.
Subclass:
58
This subclass is indented under subclass 56. Methods.
Subclass:
59.1
Of cylinders (e.g., pipes and tubes):
This subclass is indented under subclass 50. Subject matter
relating to the bonding of a seam of a cylinder.
(1) Note. The seam may be helical, as in indented subclass
62.
SEE OR SEARCH THIS CLASS, SUBCLASS:
101 for resistance butt bonding of cylindrical shaped
tubing.
607 for this subject matter where the heating is inductive.
SEE OR SEARCH CLASS:
413, Sheet Metal Container Making, 58 for the longitudinal
seaming of containers, such as cans, where no significant
electric heating is involved.
Subclass:
60
This subclass is indented under subclass 59.1. Subject
matter in which the bonding is accomplished by an electric
arc.
Subclass:
60.2
Tube sheet welding:
This subclass is indented under subclass 60. Subject matter
wherein heat exchange tubes are arc butt welded to a
perforated plate.
Subclass:
61
This subclass is indented under subclass 60. Methods.
Subclass:
61.1
Having internal support means:
This subclass is indented under subclass 59.1. Subject
matter including support means for the cylinder, positioned
inside the cylinder during the welding process.
Subclass:
61.11
With forming means:
This subclass is indented under subclass 61.1. Subject
matter including means for shaping the workpiece.
SEE OR SEARCH THIS CLASS, SUBCLASS:
78.16 for tube sealing apparatus.
91.23 for tube sealing methods.
Subclass:
61.12
With cleaning means:
This subclass is indented under subclass 61.1. Subject
matter including means to remove excess or undesirable
material from the work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
78.14 for work cleaning in bonding with pressure.
Subclass:
61.13
With edge guidance means:
This subclass is indented under subclass 61.1. Subject
matter including means to direct the path of the edges to be
welded through the welding process.
SEE OR SEARCH THIS CLASS, SUBCLASS:
61.3 for edge guidance subject matter without cylinder
internal support means.
Subclass:
61.2
Utilizing high frequency resistance heating:
This subclass is indented under subclass 59.1. Subject
matter wherein the welding apparatus is operated by high
frequency current.
Subclass:
61.3
With edge guidance means:
This subclass is indented under subclass 59.1. Subject
matter including means to direct the path of the workpiece
edges through the welding process.
SEE OR SEARCH THIS CLASS, SUBCLASS:
61.13 for this subject matter along with cylinder internal
support means.
Subclass:
61.4
With adjustable electrode means:
This subclass is indented under subclass 59.1. Subject
matter including means to change the position of an electrode
used in the welding process.
SEE OR SEARCH THIS CLASS, SUBCLASS:
86.33 for spot bonding adjustable electrodes.
86.8 for interchangeable electrodes.
88 for positioning an electrode along a bus bar.
Subclass:
61.5
With condition responsive control of the welding process:
This subclass is indented under subclass 59.1. Subject
matter wherein the control means of the welding apparatus
responds to a sensed condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
86.41 for spot bonding with electrode condition responsive
control means.
91.1 for spot bonding with condition responsive control
means.
124.1 for automatic positioning of an arc.
Subclass:
61.6
Using three or more electrodes:
This subclass is indented under subclass 59.1. Subject
matter including the use of three or more electrodes in the
welding process.
Subclass:
61.7
With cooling means:
This subclass is indented under subclass 59.1. Subject
matter including means to maintain or lower the temperature
of part or all of the welding apparatus or work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
76.11 for deposition welding with cooling means.
86.31 for spot bonding electrode support with cooling
means.
137.62 for consumable electrode gun with cooling means.
Subclass:
62
This subclass is indented under subclass 59.1. Subject
matter in which the longitudinal bond or seam is helical.
Subclass:
63
This subclass is indented under subclass 59.1. Subject
matter having a transformer of which at least a portion
rotates in relation with the feed of the workpiece.
(1) Note. The entire transformer, including its secondary
terminals and their electrodes may rotate in unison as the
electrodes ride along the work, or only a portion of the
transformer, such as the secondary and electrodes, may
rotate.
SEE OR SEARCH CLASS:
336, Inductor Devices, appropriate subclasses for the
structure of rotary transformers, per se.
Subclass:
64
This subclass is indented under subclass 59.1. Subject
matter in which the tube is a container.
SEE OR SEARCH CLASS:
413, Sheet Metal Container Making, 58 for the longitudinal
seaming of containers, such as cans, where no significant
electric heating is involved.
Subclass:
65
This subclass is indented under subclass 59.1. Subject
matter having nonrotating electrodes.
(1) Note. The electrodes, for example, may oscillate to and
from each other with the longitudinally split tube between
them.
Subclass:
66
This subclass is indented under subclass 59.1. Subject
matter having at least one electrode inside the cylinder
being bonded.
(1) Note. The inside electrode, for example, may be opposed
to an exterior electrode, with the current flow between them
traversing the region of the cylinder adjacent the
longitudinal seam.
SEE OR SEARCH THIS CLASS, SUBCLASS:
64 for this subject matter where the cylinder is a
container.
Subclass:
67
This subclass is indented under subclass 59.1. Resistance
heating methods.
Subclass:
68
This subclass is indented under subclass 50. Subject matter
utilized for cutting or disintegrating.
(1) Note. This subclass relates, for example, to the
severing of a wire cable by passing a fusing current through
a short section thereof, or to the etching of a monogram into
the surface of the metal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
19 for similar subject matter not having metallic workpieces
as, for example, perforating of paper by sparks and machining
of nonmetal by electron beams.
SEE OR SEARCH CLASS:
175, Boring or Penetrating the Earth, subclass 16 for an
electrical heating process or device for forming a hole in
the earth by directly applying heat to fluidize or comminute
the material forming the earth.
205, Electrolysis: Processes, Compositions Used Therein and
Methods of Preparing the Compositions, 640 for electrolytic
erosion of a workpiece to change the shape or surface
configuration thereof.
216, Etching a Substrate: Processes, subclass 75 and 100
for the etching of metal.
Subclass:
69.1
Electric arc:
This subclass is indented under subclass 68. Subject matter
utilizing a continuous or sustained electric space discharge
between an electrode and a work piece.
(1) Note. The disintegrating action of the arc may be
assisted, e.g., by a flow of compressed air or oxygen.
SEE OR SEARCH THIS CLASS, SUBCLASS:
121 for this subject matter not utilized for cutting or
disintegrating.
SEE OR SEARCH CLASS:
148, Metal Treatment, subclass 9.5 for using heat to
desurface or gorge metal.
204, Chemistry: Electrical and Wave Energy, subclass 224
for apparatus used for electrochemical machining.
266, Metallurgical Apparatus, subclass 48 for flame cutting
apparatus.
Subclass:
69.11
Electric spark machining:
This subclass is indented under subclass 68. Subject matter
utilizing a brief electric space discharge between an
electrode and a work piece (i.e., A. C. voltage).
(1) Note. This subclass and the subclasses indented
hereunder were formerly unofficial digests. Hence, the
placement of documents therein might not reflect schedule
hierarchy.
SEE OR SEARCH CLASS:
204, Chemistry: Electrical and Wave Energy, appropriate
subclasses for apparatus and methods of electrochemical
machining.
Subclass:
69.12
Wire cutting:
This subclass is indented under subclass 69.11. Subject
matter utilizing a wire electrode for cutting a workpiece.
SEE OR SEARCH THIS CLASS, SUBCLASS:
69.13 for electrical circuits specially adapted to subject
matter under subclass 69.1.
69.2 for vibrating a wire electrode during cutting.
SEE OR SEARCH CLASS:
204, Chemistry: Electrical and Wave Energy, subclass 206
for apparatus used in wire cutting use electrochemical
machining.
Subclass:
69.13
Circuits:
This subclass is indented under subclass 69.11. Subject
matter utilizing an electrical circuit specially adapted for
cutting or gouging.
(1) Note. The electrical circuit may, for example, be the
power supply or a control circuit.
SEE OR SEARCH CLASS:
320, Electricity: Battery or Capacitor Charging or
Discharging, 166 for capacitor charging or discharging.
700, Data Processing: Generic Control Systems or Specific
Applications, subclasses 159-195 for machining using a
numeric controller.
Subclass:
69.14
Dielectric composition and purification:
This subclass is indented under subclass 69.11. Subject
matter involving a dielectric medium between a workpiece and
an electrode and any reuse or purification of the dielectric
medium.
(1) Note. The dielectric medium may be a gas or a liquid.
(2) Note. The medium under this definition does not include
electrolyte.
SEE OR SEARCH CLASS:
210, Liquid Purification or Separation, appropriate
subclasses for liquid purification in general.
Subclass:
69.15
Electrodes:
This subclass is indented under subclass 69.11. Subject
matter involving an electrode's shape, composition or holder
used in an electric arc or electric spark cutting (EDM)
operation.
SEE OR SEARCH CLASS:
204, Chemistry: Electrical and Wave Energy, 280 for
electrodes used in electrochemical machining.
Subclass:
69.16
Gap spacing control:
This subclass is indented under subclass 69.11. Subject
matter including apparatus to control the gap distance
between an electrode and a workpiece.
SEE OR SEARCH CLASS:
205, Electrolysis: Processes, Compositions Used Therein, and
Methods of Preparing the Compositions, 652 for electrolytic
erosion of a workpiece to change the shape or surface
configuration thereof in which the gap between a tool and a
workpiece is either maintained or defined.
318, Electricity: Motive Power Systems, 560 for positional
servo systems.
Subclass:
69.17
Methods:
This subclass is indented under subclass 69.11. Subject
matter including a method of machining specially adapted for
treating particular objects or for obtaining special
results.
SEE OR SEARCH CLASS:
205, Electrolysis: Processes, Compositions Used Therein, and
Methods of Preparing the Compositions, 640 for electrolytic
erosion of a workpiece to change the shape or surface
configuration thereof.
Subclass:
69.18
Pulse:
This subclass is indented under subclass 69.11. Subject
matter including a circuit used to shape a particular
electric pulse to be applied between an electrode and a
workpiece.
Subclass:
69.19
Safety circuits:
This subclass is indented under subclass 69.11. Subject
matter utilizing a safety circuit in the event of electric
arcing or a short circuiting or in the event of danger (e.g.,
an earthquake or fire).
Subclass:
69.2
Vibrating electrodes or workpiece:
This subclass is indented under subclass 69.11. Subject
matter wherein the electrode or workpiece is vibrating during
machining.
(1) Note. Any movement of the electrode or workpiece during
machining will cause vibrationary movement.
SEE OR SEARCH CLASS:
205, Electrolysis: Processes, Compositions Used Therein, and
Methods of Preparing the Compositions, subclass 671 for
electrolytic erosion of a workpiece to change the shape or
surface configuration thereof which provides for agitation or
vibration of the electrolyte.
Subclass:
70
This subclass is indented under subclass 69. Subject matter
relating to hand held tools.
SEE OR SEARCH THIS CLASS, SUBCLASS:
138 especially subclass 139, for similar subject matter not
utilized for disintegration or cutting.
Subclass:
71
This subclass is indented under subclass 50. Subject matter
in which the metal is heated by means of current flow between
it and a surrounding liquid.
(1) Note. The liquid may be quiet, as in a tank, or
flowing, as in a jet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
72 for analogous subject matter where the liquid is not used
as an electrode.
SEE OR SEARCH CLASS:
204, Chemistry: Electrical and Wave Energy, appropriate
subclasses for analogous subject matter utilized for
electrochemistry.
Subclass:
72
This subclass is indented under subclass 50. Subject matter
in which a nonatmospheric environment is created at the
region of electric heating.
(1) Note. The environment may, for example, be a bath of
oil which prevents overheating and oxidation during
resistance welding, or it may be a vacuum.
SEE OR SEARCH THIS CLASS, SUBCLASS:
68 for similar subject matter utilized for cutting or
disintegrating.
71 for similar subject matter in which a liquid environment
acts as an electrode.
SEE OR SEARCH CLASS:
228, Metal Fusion Bonding, 218 for formation of a metallic
bond in a nonatomospheric environment wherein heating is
other than electrical.
Subclass:
73
This subclass is indented under subclass 72. Subject matter
in which the non-atmospheric environment is slag or a slag
forming material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
124.1 for this subject matter in combination with means to
automatically position an electric arc.
145.22 145.23 and 146.1+, for mere arc electrodes having
fluxing or slagging means.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, 21 for arc lamps having an auxiliary material
supply to the arc.
501, Compositions: Ceramic, subclass 28 for glass batch
forming compositions containing slag.
Subclass:
73.1
Including electroslag welding:
This subclass is indented under subclass 73. Subject matter
including welding processes wherein coalescence is produced
by molten slag which melts the filler metal and the surfaces
of the work being welded.
Subclass:
73.11
For coating:
This subclass is indented under subclass 73.1. Subject
matter wherein at least one layer of weld material is applied
to cover a portion of the surface area of a workpiece.
SEE OR SEARCH THIS CLASS, SUBCLASS:
73.21 for submerged arc coating.
76.1 for deposition welding.
Subclass:
73.2
With granular flux supply:
This subclass is indented under subclass 73. Subject matter
including means for depositing particulate weld protection
material.
Subclass:
73.21
For deposition welding:
This subclass is indented under subclass 73.2. Subject
matter including welding processes wherein coalescence is
produced by heating with an arc or arcs between a bare metal
electrode or electrodes and the work, with the arc being
shielded by a blanket of granular, fusible material on the
work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
73.11 for electroslag coating.
76.1 for other deposition welding subject matter.
Subclass:
74
This subclass is indented under subclass 72. Subject matter
in which the nonatmospheric environment is a gas whose
composition is not that of air or in which the nonatmospheric
environment is compressed or rarified air.
(1) Note. The environment may be formed by the gases
liberated by the coating of a "shielded" electrode (e.g.,
coated electrode) when an arc is struck from the electrode,
or by an external gas supply connected to a hand held torch.
SEE OR SEARCH THIS CLASS, SUBCLASS:
122 for this subject matter.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 231.01 for
analogous subject matter, not utilized to heat metal.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 22 for arc lamps having auxiliary
fluent material feed to the arc.
315, Electric Lamp and Discharge Devices: Systems, 111.01
for systems, not utilized to heat metal, analogous to the
systems of this subclass.
Subclass:
75
This subclass is indented under subclass 74. Subject matter
in which the electric heating arc is of the nonconsumable
electrode type.
(1) Note. This subclass relates, for example, to arc
torches utilized in atomic hydrogen welding, in which the
tungsten electrodes wear away only slowly.
Subclass:
76.1
For deposition welding (e.g., coating or building up):
This subclass is indented under subclass 50. Subject matter
relating to the coating or building up of a base by means of
deposited metal.
SEE OR SEARCH CLASS:
427, Coating Processes, appropriate subclasses for coating in
general.
Subclass:
76.11
With cooling means:
This subclass is indented under subclass 76.1. Subject
matter including means to maintain or lower the temperature
of part or all of the welding apparatus or work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
86.31 for spot bonding electrode support with cooling
means.
137.62 for consumable electrode arc welding with cooling
means.
Subclass:
76.12
Of multiple distinct layers:
This subclass is indented under subclass 76.1. Subject
matter wherein the deposited weld material is a composite of
separate strata.
(1) Note. The layers are usually, but not necessarily,
dissimilar in composition.
Subclass:
76.13
By spark discharge:
This subclass is indented under subclass 76.1. Subject
matter wherein a mixture of powders and combustible gases is
detonated by an electrically produced spark, thereby
simultaneously heating the powders and propelling them onto
the workpiece surface at very high velocities.
Subclass:
76.14
By electric arc:
This subclass is indented under subclass 76.1. Subject
matter wherein the welding process includes heating with an
electrically produced arc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
121.11 for electric arc welding.
Subclass:
76.15
With nonconsumable electrode:
This subclass is indented under subclass 76.14. Subject
matter including electrode arc producing means without
consumption of the electrode.
Subclass:
76.16
Plasma:
This subclass is indented under subclass 76.14. Subject
matter wherein coalescence is produced by heating with a
constricted arc between an electrode and the work or the
electrode and the constricting nozzle, and with shielding
obtained from hot ionized gases.
SEE OR SEARCH THIS CLASS, SUBCLASS:
121.36 for other arc plasma heating subject matter.
Subclass:
76.17
By resistance heating:
This subclass is indented under subclass 76.1. Subject
matter including heating processes wherein coalescence is
produced by the heat obtained from resistance of the work to
electric current in a circuit of which the work is a part,
and by the application of pressure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
53 and 55, for rail bond resistance welding.
59.1 61.1+, 61.2, 61.3, 61.4, 61.5, 61.6, 61.7, and 67 for
cylinder resistance heating methods.
78 for other resistance heating subject matter.
Subclass:
77
This subclass is indented under subclass 76.1. Subject
matter in which the part coated or built up is the cutting
edge of a tool.
Subclass:
78.01
For bonding with pressure (e.g., resistance welding):
This subclass is indented under subclass 50. Subject matter
relating to the bonding of metal by means of pressure while
heated by the electric current.
(1) Note. The bond is usually, but not necessarily, a
metal-to-metal weld.
(2) Note. The heat is generally created by resistance
heating, but may, as in the case of indented subclasses 97+,
be created by an electric arc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
53 and 55, for rail bond resistance welding.
59.1 61.1+, 61.2, 61.3, 61.4, 61.5, 61.6, and 61.7 for
cylinder resistance welding subject matter.
76.17 for deposition welding by resistance heating.
603 for this subject matter where the electric current is
induced in the metal by electromagnetic or electrostatic
induction.
Subclass:
78.02
By solid-state bonding (e.g., diffusion):
This subclass is indented under subclass 78.01. Subject
matter wherein the workpiece joint interface coalescence is
produced essentially at temperatures below the melting point
of the metals being joined, without the addition of a brazing
filler metal.
Subclass:
78.11
Honeycomb:
This subclass is indented under subclass 78.01. Subject
matter wherein the bonded work has the structure or
appearance of a honeycomb.
SEE OR SEARCH CLASS:
228, Metal Fusion Bonding, subclass 181 for metal fusion
bonding processes for honeycombs.
Subclass:
78.12
Methods:
This subclass is indented under subclass 78.11. Subject
matter including processes of making honeycombs.
Subclass:
78.13
With additional heating device:
This subclass is indented under subclass 78.01. Subject
matter including means for heating part or all of the work
being welded other than the heating means used principally
for accomplishing the welding process.
SEE OR SEARCH THIS CLASS, SUBCLASS:
91.22 for methods of additional heating to the same spot.
Subclass:
78.14
With work cleaning means:
This subclass is indented under subclass 78.01. Subject
matter including means to remove excess or undesirable
material from the work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
61.12 for electric heating of metal cylinders with internal
support having cleaning means.
Subclass:
78.15
With work cutting means:
This subclass is indented under subclass 78.01. Subject
matter including means to sever work during or after the
welding process.
SEE OR SEARCH THIS CLASS, SUBCLASS:
124.21 for work cutting with automatic positioning of an
electric metal heating arc.
Subclass:
78.16
With work deforming means (e.g, tube sealing):
This subclass is indented under subclass 78.01. Subject
matter including means for forging or shaping of the work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
61.11 for forming means with the electric heating of
cylinders having internal support means.
91.23 for methods of spot bonding with work deforming.
Subclass:
79
This subclass is indented under subclass 78.01. Subject
matter having a conveyer for handling the workpiece.
SEE OR SEARCH THIS CLASS, SUBCLASS:
124.1 and 125.1+, for similar subject matter in arc
welding.
SEE OR SEARCH CLASS:
198, Conveyors: Power-Driven, appropriate subclasses (e.g.,
373 for a conveyor provided with an orienting device) for
power driven conveyors, per se, and consult the search notes
for related art.
Subclass:
80
This subclass is indented under subclass 79. Subject matter
in which the bond is a spot bond.
Subclass:
81
This subclass is indented under subclass 78.01. Subject
matter in which the electric current is applied to the metal
by roller type electrodes.
(1) Note. The roller electrode may produce a continuous
weld or an interrupted weld, consisting of distinct spots.
SEE OR SEARCH THIS CLASS, SUBCLASS:
102 for similar subject matter.
SEE OR SEARCH CLASS:
191, Electricity: Transmission to Vehicles, appropriate
subclasses for current collecting and current distributing
rollers.
492, Roll or Roller, for a roll, per se, not elsewhere
provided for, and see the notes thereunder.
Subclass:
82
This subclass is indented under subclass 81. Subject matter
in which the workpiece is stationary and the roller moves.
Subclass:
83
This subclass is indented under subclass 81. Methods.
Subclass:
84
This subclass is indented under subclass 81. Roller
electrodes.
Subclass:
85.1
Brazing or soldering:
This subclass is indented under subclass 50. Subject matter
in which the metal is heated and filler metal is used to
produce a weld by means of brazing or soldering.
(1) Note. The filler metal (flux or solder) is to be
applied to at least one surface of the metals to be joined.
(2) Note. This subclass and the subclasses indented
hereunder were formerly unofficial digests. Hence, the
placement of documents therein might not reflect schedule
hierarchy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
129 for brazing or soldering where an electric arc (torch)
provides the required heat.
615 and 616, for specific means of applying the heat.
SEE OR SEARCH CLASS:
29, Metal Working, for generic brazing and soldering means
and methods.
Subclass:
85.12
Utilizing radiant energy:
This subclass is indented under subclass 85.1. Subject
matter in which the heat is applied to the metal by means of
radiant energy (e.g., infrared lamps, resistance heaters,
lasers, etc.).
SEE OR SEARCH THIS CLASS, SUBCLASS:
121 for additional metal heating where the radiant energy
source is an electron beam or laser.
347 for heat energy reflector means.
523 for the particular structure of resistance heater.
Subclass:
85.13
Methods:
This subclass is indented under subclass 85.12. Subject
matter including methods of brazing or soldering.
SEE OR SEARCH THIS CLASS, SUBCLASS:
121 for methods of welding metal workpieces by means of
electron beam heating or by means of laser heating.
Subclass:
85.14
With filler metal in circuit:
This subclass is indented under subclass 85.1. Subject
matter wherein the filler metal is melted by the passage of
electrical current therethrough.
Subclass:
85.15
Methods:
This subclass is indented under subclass 85.14. Subject
matter which includes methods of brazing or soldering.
Subclass:
85.16
Electrically heated tool (e.g., electrodes, heaters, etc.):
This subclass is indented under subclass 85.1. Subject
matter in which the required heat is applied to the metal
workpiece by means of a resistance heated tool having a
particular structure. Electrical current passes through the
tool and produces the heat (e.g., electrodes, heaters,
etc.).
SEE OR SEARCH THIS CLASS, SUBCLASS:
119 for the particular structure of an electrode.
229 for a hand-manipulative tool with heated tip or heat
applied to localized area.
523 for resistance heater structure.
Subclass:
85.17
Furnaces or enclosures:
This subclass is indented under subclass 85.1. Subject
matter in which the required heat is applied to the metal by
means of a particular furnace or enclosure (e.g., a heating
chamber).
SEE OR SEARCH THIS CLASS, SUBCLASS:
388 for oven type enclosures including means whereby the
material to be heated may be passed continuously through
heated area.
651 for inductively heated furnaces or enclosures.
Subclass:
85.18
Wire lead bonders:
This subclass is indented under subclass 85.1. Subject
matter wherein the metal workpiece to be joined is wired.
SEE OR SEARCH THIS CLASS, SUBCLASS:
56.1 for the electrical bonding of wire leads.
SEE OR SEARCH CLASS:
228, Metal Fusion Bonding, subclass 4.5 and 904 for
miscellaneous wire lead bonders (i.e., bonders which do not
necessarily specify electric heating).
Subclass:
85.19
Machine for predetermined operation:
This subclass is indented under subclass 85.1. Subject
matter in which the required heat and filler metal are
applied to the metal workpiece by means of a machine
including means for conveying the workpiece and/or
positioning the heated tool.
SEE OR SEARCH THIS CLASS, SUBCLASS:
59.1 where the predetermined operation is the welding of
pipes or tubes.
79 for electrical heating machines with a conveyor for
workpiece.
SEE OR SEARCH CLASS:
228, Metal Fusion Bonding, 4.1 for machines with means to
apply the flux, to handle or move the work, and to align and
bond the work.
Subclass:
85.2
Fluxes or solders:
This subclass is indented under subclass 85.1. Subject
matter in which the composition of a filler metal (flux or
solder) can be used in a brazing or soldering operation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
146.1 for the composition of a weld rod.
SEE OR SEARCH CLASS:
75, Specialized Metallurgical Processes, Compositions for Use
Therein, Consolidated Metal Powder Compositions, and Loose
Metal Particulate Mixtures, 122.1 for alloy of metallic
compositions; and subclass 257 for flux composition.
148, Metal Treatment, 23 for fluxing compositions.
228, Metal Fusion Bonding, 262.1 for a process of bonding
wherein the work component, temperature, or pressure is
critical.
420, Alloys or Metallic Compositions, for the particular
alloy composition.
Subclass:
85.21
Solder preforms:
This subclass is indented under subclass 85.1. Subject
matter in which the structure or shape of the filler metal
(flux or solder) is predetermined to form the resultant joint
(braze or weld).
SEE OR SEARCH THIS CLASS, SUBCLASS:
85.2 and 146.1, for the specific composition of the solder
preform.
SEE OR SEARCH CLASS:
228, Metal Fusion Bonding, subclass 56.3 for additional
solder forms used in bonding.
Subclass:
85.22
Methods:
This subclass is indented under subclass 85.1. Subject
matter with miscellaneous methods of brazing or soldering.
Subclass:
86.1
By spot bonding:
This subclass is indented under subclass 78.01. Subject
matter wherein welding is made between or upon overlapping
members, coalescence may start and occur on the faying
surfaces or may have proceeded from the surface of one
member, and the weld cross section is approximately
circular.
(1) Note. This subclass relates, for example, to spot
welding of two overlapped plates where the spot weld is a
substitute for a bolt or rivet connection.
SEE OR SEARCH THIS CLASS, SUBCLASS:
56 for spot bonding of wires, rods, or bars.
SEE OR SEARCH CLASS:
140, Wireworking, subclass 112 for nonelectric spot welders
utilized to join wire.
Subclass:
86.21
With hand-manipulative portable devices:
This subclass is indented under subclass 86.1. Subject
matter wherein the bonding apparatus includes structure
adapted to manually hold or manipulate the bonding tool or
instrument while in use.
Subclass:
86.22
With separately applied pressure and heat:
This subclass is indented under subclass 86.1. Subject
matter wherein the pressure and heat are not applied
simultaneously during the welding process.
Subclass:
86.23
With welding pressure controlled by the work support:
This subclass is indented under subclass 86.1. Subject
matter wherein the welding pressure is controlled by work
support condition responsive means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
86.41 for significant electrode support condition responsive
control means.
Subclass:
86.24
With work orientation means:
This subclass is indented under subclass 86.1. Subject
matter including means for positioning the work with respect
to the welding apparatus.
Subclass:
86.25
With significant electrode support:
This subclass is indented under subclass 86.1. Subject
matter including means to position or orient the welding
electrode with respect to the work.
Subclass:
86.31
Having cooling means:
This subclass is indented under subclass 86.25. Subject
matter including means to maintain or lower the temperature
of part or all of the welding apparatus or work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
61.7 for cylinder welding with cooling means.
76.11 for deposition welding with cooling means.
Subclass:
86.32
Having magnetic force actuated electrode:
This subclass is indented under subclass 86.25. Subject
matter wherein the bonding electrode is controlled by
magnetically actuated means during the welding process.
Subclass:
86.33
Having adjustment means:
This subclass is indented under subclass 86.25. Subject
matter including means to change the position of the
electrode.
Subclass:
86.41
With condition responsive control means:
This subclass is indented under subclass 86.33. Subject
matter wherein the electrode is automatically controlled in
response to a sensed condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
61.15 for cylinder bonding with condition responsive control
means.
91.01 for spot bonding with condition responsive control
means.
108 for automatic output control circuits.
Subclass:
86.51
Responsive to pressure:
This subclass is indented under subclass 86.41. Subject
matter wherein the control means is affected by changes in
the force applied to the work.
Subclass:
86.61
By force balancing:
This subclass is indented under subclass 86.51. Subject
matter including means to equalize the welding pressure of
plural, simultaneously applied electrodes.
Subclass:
86.7
For predetermined welding operation:
This subclass is indented under subclass 86.33. Subject
matter wherein the welding process is performed in accordance
with a preset schedule of operation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
125.1 for arc welding with predetermined welding operation.
Subclass:
86.8
Having interchangeable welding electrodes:
This subclass is indented under subclass 86.25. Subject
matter having means for allowing plural electrodes to be used
in place of each other.
Subclass:
86.9
For one-face welding:
This subclass is indented under subclass 86.1. Subject
matter wherein all electrical welding contact is applied to
one side of the work.
Subclass:
87
This subclass is indented under subclass 86.1. Subject
matter in which multiple spot bonds are produced.
(1) Note. The multiple spot bonds can be produced,
simultaneously by plural pairs of electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
81 for this subject matter where the multiple bonds are
produced by roller type electrodes.
Subclass:
88
This subclass is indented under subclass 86.1. Subject
matter having fixed bus bars of extended length for supplying
the heating current and having electrodes for transferring
the current to the work, said electrodes being movably
positioned along the bus bar.
(1) Note. The bus bars, for example, may serve as backing
members for absorbing mechanical thrust produced when the
electrodes are clamped to the workpiece.
SEE OR SEARCH CLASS:
191, Electricity: Transmission to Vehicles, 43 for trolleys
for transferring electric current from a stationary conductor
to a movable load.
Subclass:
89
This subclass is indented under subclass 86.1. Subject
matter in which the electrode is actuated by fluid pressure
means.
(1) Note. The electrode may, for example, have a hydraulic
cylinder attached to it to obtain a high clamping or
indenting force.
SEE OR SEARCH THIS CLASS, SUBCLASS:
418 Rotary Expansible Chamber Devices, appropriate subclasses
for rotary expansible chamber type pumps or motors, per se.
SEE OR SEARCH CLASS:
91, Motors: Expansible Chamber Type, appropriate subclasses,
for miscellaneous fluid pressure actuated motors.
Subclass:
90
This subclass is indented under subclass 86.1. Subject
matter in which opposing electrodes are mounted on the jaws
of a plier or tong.
Subclass:
91.1
With condition responsive control of the welding process:
This subclass is indented under subclass 86.1. Subject
matter wherein the spot bonding process is automatically
controlled in response to a sensed condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
61.5 for cylinder bonding with condition responsive control
means.
86.41 for spot bonding electrode support condition
responsive means.
108 for automatic output control circuits.
Subclass:
91.2
Methods:
This subclass is indented under subclass 86.1. Subject
matter including processes of spot bonding.
Subclass:
91.21
Of welding through insulation:
This subclass is indented under subclass 91.2. Subject
matter including the processes of bonding through material
through which essentially no current will flow.
SEE OR SEARCH THIS CLASS, SUBCLASS:
92 for methods of welding current limitation including
interposed insulation.
Subclass:
91.22
With additional heating to same spot:
This subclass is indented under subclass 91.2. Subject
matter including means to apply heat more than once to same
area of the work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
78.13 for additional heating devices.
Subclass:
91.23
With work deforming:
This subclass is indented under subclass 91.2. Subject
matter including means for forging or shaping of the work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
61.11 for forming means with the electric heating of
cylinders having internal support means.
78.16 for forming means with resistance welding.
Subclass:
92
This subclass is indented under subclass 91.2. Subject
matter in which the heating current is made to localize at
particular points of the workpiece by means other than the
electrodes.
(1) Note. The workpieces to be bonded, for example, may be
coated with insulating paint on the contacting faces except
at those points where bonding is to take place.
Subclass:
93
This subclass is indented under subclass 92. Subject matter
in which the current localizing means comprises localized
projections on the workpiece.
Subclass:
94
This subclass is indented under subclass 92. Subject matter
in which the current localizing means comprises a member
which is interposed between either the workpiece and
electrode or between the workpieces being bonded, said member
becoming part of the bond.
Subclass:
95
This subclass is indented under subclass 78.01. Subject
matter in which the members to be bonded are brought together
percussively to developed the bonding pressure.
SEE OR SEARCH CLASS:
428, Stock Material or Miscellaneous Articles, subclass 940
for metallic stock comprising components bonded by percussive
or explosive-type force.
Subclass:
96
This subclass is indented under subclass 95. Methods.
Subclass:
97
This subclass is indented under subclass 78.01. Subject
matter in which the metal workpieces to be bonded are heated
by an electric arc created between them before pressure is
applied.
(1) Note. The metal workpieces may or may not be further
heated, after pressure is applied, by means of resistive
heating arising from current flowing through the workpiece.
SEE OR SEARCH THIS CLASS, SUBCLASS:
95 for this subject matter in which the pressure is
developed percussively.
Subclass:
98
This subclass is indented under subclass 97. Subject matter
in which the metal workpiece is a stud which is bonded to a
base.
Subclass:
99
This subclass is indented under subclass 98. Methods.
Subclass:
100
This subclass is indented under subclass 97. Methods.
Subclass:
101
This subclass is indented under subclass 78.01. Subject
matter in which the bond is a butt joint between the end of a
member and another member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
95 for this subject matter using percussively developed
pressure.
97 for this subject matter in which the heat is developed by
an electric arc.
SEE OR SEARCH CLASS:
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
304.1 for processes of butt joining nonmetallic elements.
Subclass:
102
This subclass is indented under subclass 101. Subject matter
in which the bond is an extended seam.
(1) Note. Two narrow sheets of metal, for example, may be
edge bonded to form a wide sheet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
81 for similar subject matter utilizing roller electrodes.
Subclass:
103
This subclass is indented under subclass 101. Subject matter
in which one workpiece only is fed to develop the bonding
pressure.
Subclass:
104
This subclass is indented under subclass 101. Methods.
SEE OR SEARCH CLASS:
428, Stock Material or Miscellaneous Articles, 615 for
composite metallic stock comprising welded joints
characterized by the composition of the parts joined and/or
the filler metal.
Subclass:
105
This subclass is indented under subclass 104. Subject matter
relating to the preparation of the edges to be bonded.
(1) Note. The edges, for example, may be preshaped.
SEE OR SEARCH THIS CLASS, SUBCLASS:
73 for arc welding with flux.
SEE OR SEARCH CLASS:
228, Metal Fusion Bonding, appropriate subclasses for
metallurgical bonding by nonelectrical heating; particularly
141.1 when combined with work shaping; and subclasses 203+
when combined with other pretreating of the work.
Subclass:
106
This subclass is indented under subclass 104. Subject matter
in which a bridging member is utilized in bonding the butt
joint.
Subclass:
107
This subclass is indented under subclass 104. Subject matter
relating to the bonding of an edge or end to a surface.
Subclass:
108
This subclass is indented under subclass 78.01. Subject
matter relating to the system for supplying the electric
current which produces the heating.
SEE OR SEARCH THIS CLASS, SUBCLASS:
130.1 for similar subject matter used in arc welding.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems, for
miscellaneous voltage or current control systems.
Subclass:
109
This subclass is indented under subclass 108. Subject matter
having indicating means.
(1) Note. The indicator may be, for example, a signal,
alarm or recorder.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, appropriate
subclasses for electric testing. Note 76.11 for electric
meters.
340, Communications: Electrical, subclass 655 for a
condition responsive system indicating heating circuit
energization.
Subclass:
110
This subclass is indented under subclass 108. Subject matter
which is controlled in response to current in, voltage at or
temperature of the workpiece.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 234-298 for automatically controlled voltage or
current regulation systems.
Subclass:
111
This subclass is indented under subclass 108. Subject matter
wherein the current is repeated or interrupted
automatically.
(1) Note. This subclass relates, for example, to systems
where the current is interrupted so as to give alternate
periods of heating and cooling at the same weld, and to
systems where the current is interrupted so that it may be
distributed to different weld areas.
SEE OR SEARCH THIS CLASS, SUBCLASS:
81 for roller electrode bonding, some of which utilize
interrupted current supply systems.
Subclass:
112
This subclass is indented under subclass 108. Subject matter
in which the heating current is derived from a stored energy
source.
(1) Note. The stored energy source, for example, may be an
inductor with a large flux in its core or it may be a storage
battery.
SEE OR SEARCH CLASS:
315, Electric Lamp and Discharge Devices: Systems, 289 for
miscellaneous space discharge tube systems having a surge
generator, and consult the search notes thereto for related
art.
320, Electricity: Battery or Capacitor Charging or
Discharging, appropriate subclass for charging or discharging
a battery or capacitor energy storage system.
Subclass:
113
This subclass is indented under subclass 112. Subject matter
having a condenser to store the energy.
SEE OR SEARCH CLASS:
320, Electricity: Battery or Capacitor Charging or
Discharging, appropriate subclasses for charging or
discharging a battery or capacitor energy storage system,
especially 166 for capacitor charging or discharging.
Subclass:
114
This subclass is indented under subclass 108. Subject matter
having a space discharge control tube.
(1) Note. The tube may be, for example, an ignitron or
thyratron.
SEE OR SEARCH CLASS:
315, Electric Lamp and Discharge Devices: Systems, 246 for
miscellaneous gas tube systems having alternating current
supply and consult the search notes thereto for related art.
323, Electricity: Power Supply or Regulation Systems,
subclass 291 for miscellaneous space discharge tube type
voltage or current control systems.
Subclass:
115
This subclass is indented under subclass 108. Subject matter
having means to energize or deenergize the system in timed
relation to the voltage oscillation of an alternating current
supply system.
(1) Note. Switching may be accomplished, for example, only
at the voltage or current zero, or in such a manner as not to
cause saturation of a transformer.
Subclass:
116
This subclass is indented under subclass 108. Subject matter
having a transformer.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 355 for miscellaneous transformer systems.
336, Inductor Devices, appropriate subclasses, for
transformers, per se.
Subclass:
117.1
Methods:
This subclass is indented under subclass 78.01. Subject
matter comprising processes of electric heating of metal for
bonding with pressure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
78.12 for resistance welding methods of making honeycombs.
Subclass:
118
This subclass is indented under subclass 117.1. Subject
matter involving a particular metal.
(1) Note. This subclass relates, for example, to the
welding of dissimilar metals, and to the welding of aluminum,
titanium and molybdenum.
SEE OR SEARCH CLASS:
428, Stock Material or Miscellaneous Articles, subclass 650
for a metallic composite in which a component has an aluminum
base.
Subclass:
119
This subclass is indented under subclass 78.01. Subject
matter relating to the electrodes utilized in pressure
welding.
SEE OR SEARCH CLASS:
439, Electrical Connectors, appropriate subclasses for
terminals.
Subclass:
120
This subclass is indented under subclass 119. Subject matter
having cooling means for the electrode.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 11 for analogous
subject matter in the electric lamp and space discharge
device art.
439, Electrical Connectors, subclass 112 for cooled
terminals.
Subclass:
121.11
By Arc:
This subclass is indented under subclass 50. Subject matter
where a working arc of charged particles is caused to impinge
on a workpiece.
Subclass:
121.12
Using electron beam:
This subclass is indented under subclass 121.11. Subject
matter wherein the working arc is an electron beam in a
vacuum.
SEE OR SEARCH CLASS:
250, Radiant Energy, subclass 492.1 for irradiation of
objects or material and subclass 492.2 for irradiation of
semiconductive devices.
Subclass:
121.13
Welding:
This subclass is indented under subclass 121.12. Subject
matter for joining two workpieces.
Subclass:
121.14
Methods:
This subclass is indented under subclass 121.13. Subject
matter including methods of joining two workpieces.
Subclass:
121.15
Deposition (e.g., sputtering):
This subclass is indented under subclass 121.12. Subject
matter wherein an electron beam impinges on a workpiece to
evaporate material therefrom.
Subclass:
121.16
Melting:
This subclass is indented under subclass 121.12. Subject
matter wherein the electron beam liquifies the workpiece.
SEE OR SEARCH CLASS:
75, Specialized Metallurgical Processes, Compositions for Use
Therein, Consolidated Metal Powder Compositions, and Loose
Metal Particulate Mixtures, subclass 65 for nonferrous
electron beam melting processes.
373, Industrial Electric Heating Furnaces, subclass 10 and
11 for an electron beam furnace device.
Subclass:
121.17
Methods:
This subclass is indented under subclass 121.16. Subject
matter including methods of liquifying a workpiece.
SEE OR SEARCH CLASS:
75, Specialized Metallurgical Processes, Compositions for Use
Therein, Consolidated Metal Powder Compositions, and Loose
Metal Particulate Mixtures, subclass 65 for nonferrous
electron beam melting processes.
373, Industrial Electric Heating Furnaces, subclass 10 and
11 for an electron beam furnace device.
Subclass:
121.18
Cutting:
This subclass is indented under subclass 121.12. Subject
matter wherein a workpiece is severed by an electron beam.
Subclass:
121.19
Etching or trimming:
This subclass is indented under subclass 121.18. Subject
matter wherein the cut is superficial or partially through
the workpiece.
SEE OR SEARCH CLASS:
216, Etching a Substrate: Processes, subclass 63 and 94 for
the use of an election beam in etching.
438, Semiconductor Device Manufacturing: Process,
particularly subclass 661 for combined processes for
trimming a conductive pathway on a semiconductive substrate.
Subclass:
121.2
Methods:
This subclass is indented under subclass 121.19. Subject
matter including processes of cutting a workpiece.
Subclass:
121.21
Chamber:
This subclass is indented under subclass 121.12. Subject
matter wherein an evacuated housing structure is provided for
partially or completely enclosing the workpiece.
Subclass:
121.22
Sealing:
This subclass is indented under subclass 121.21. wherein
vacuum or subatmospheric pressure securing means is provided
on the chamber.
Subclass:
121.23
Monitoring:
This subclass is indented under subclass 121.21. Subject
matter wherein means are provided for visual or electronic
communication with the interior of the chamber.
(1) Note. Communication includes such things as microscope
and T.V. view.
Subclass:
121.24
Nonvacuum environment:
This subclass is indented under subclass 121.12. Subject
matter wherein the working electron beam is in the ambient
atmosphere.
Subclass:
121.25
Shaping:
This subclass is indented under subclass 121.12. Subject
matter wherein the working are of the charged particle beam
is geometrically configured by using a plate, mask
electromagnetic lens electrostatic and electromagnetic
deflectors.
SEE OR SEARCH CLASS:
250, Radiant Energy, subclass 396 for focusing and magnetic
lenses.
373, Industrial Electric Heating Furnaces, subclass 14 for
deflection control.
Subclass:
121.26
With focusing:
This subclass is indented under subclass 121.25. Subject
matter wherein the location of the charged particle beam is
directed to a particular location by focusing (e.g., dynamic
of static coil means).
SEE OR SEARCH CLASS:
250, Radiant Energy, subclass 396 for beam focusing.
Subclass:
121.27
With electrode or gun structure:
This subclass is indented under subclass 121.25. Subject
matter wherein a particular electrode configuration is
provided or a particular electron beam generator housing
structure is set forth.
SEE OR SEARCH CLASS:
373, Industrial Electric Heating Furnaces, subclass 13 for
electron beam gun assembly.
Subclass:
121.28
Position control:
This subclass is indented under subclass 121.12. Subject
matter wherein the charged particle beam is located by
deflecting the beam or moving the workpiece.
Subclass:
121.29
Swept or scanned:
This subclass is indented under subclass 121.28. Subject
matter wherein the beam of charged particles is continuously
deflected in opposite directions by electrostatic or
electromagnetic means.
Subclass:
121.3
Condition responsive:
This subclass is indented under subclass 121.28. Subject
matter wherein the charge particle beam is located in
response to a position detector (e.g., a detector circuit
encoder and computer or a secondary emission detector).
Subclass:
121.31
Workpiece position control:
This subclass is indented under subclass 121.12. Subject
wherein the workpiece or a support therefore is located by
moving the workpiece or the support (e.g., by servo control
driving circuit for an XY table).
Subclass:
121.32
Condition responsive:
This subclass is indented under subclass 121.31. Subject
matter wherein the workpiece or the support is moved in
response to secondary emission detection of a faulty
location.
Subclass:
121.33
With fluid supply (e.g., shielding gas or coolant):
This subclass is indented under subclass 121.12. Subject
matter wherein the particle beam generator structure is
provided with means for receiving and utilizing a fluid as a
working fluid in machining or as a cooling or shield fluid.
(1) Note. Machining includes welding, cutting, etching,
etc.
Subclass:
121.34
Power supply:
This subclass is indented under subclass 121.12. Subject
matter including a source of electrical energy.
Subclass:
121.35
Method:
This subclass is indented under subclass 121.12. Subject
matter including methods of heating a workpiece.
Subclass:
121.36
Using plasma:
This subclass is indented under subclass 121.11. Subject
matter wherein the working arc is an ionized gas plasma.
(1) Note. A plasma torch exclusive of furnace structure can
be employed to heat the workpiece under this gas plasma.
SEE OR SEARCH CLASS:
216, Etching a Substrate: Processes, 67 for the use of
plasma in an etching process.
Subclass:
121.37
Melting:
This subclass is indented under subclass 121.36. Subject
matter wherein the ionized gas plasma liquifies the
workpiece.
Subclass:
121.38
Methods:
This subclass is indented under subclass 121.37. Subject
matter including a process of liquifying a workpiece by a
plasma.
Subclass:
121.39
Cutting:
This subclass is indented under subclass 121.36. Subject
matter wherein a plasma torch is used to server a workpiece.
Subclass:
121.4
Etching:
This subclass is indented under subclass 121.39. Subject
matter wherein eroding or abrading is accomplished with a
plasma torch.
SEE OR SEARCH CLASS:
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
subclass 345 for differential etching apparatus.
204, Chemistry: Electrical and Wave Energy, 192.32 for a
sputter etching process and subclasses 298.31+ for the
corresponding apparatus.
216, Etching a Substrate: Processes, 67 for chemically
etching a substrate with a plasma.
313, Electric Lamp and Discharge Devices, 231.31 fluid
supply with plasma devices.
315, Electric Lamp and Discharge Devices: Systems, 111.21
for plasma generating systems.
Subclass:
121.41
Methods:
This subclass is indented under subclass 121.4. Subject
matter relating to the process of eroding and abrading a
workpiece with a plasma torch.
SEE OR SEARCH CLASS:
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
subclass 345 for differential etching apparatus.
204, Chemistry: Electrical and Wave Energy, 192.32 for a
sputter etching process.
216, Etching a Substrate: Processes, 67 for chemically
etching a substrate with a plasma.
313, Electric Lamp and Discharge Devices, 231.31 fluid
supply with plasma devices.
315, Electric Lamp and Discharge Devices: Systems, 111.21
for plasma generating systems.
Subclass:
121.42
Rate control:
This subclass is indented under subclass 121.4. Subject
matter wherein the speed of removal of material from a
workpiece by a plasma torch is regulated (e.g., by
controlling gas flow or power to the torch).
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 231.31 fluid
supply with plasma devices.
315, Electric Lamp and Discharge Devices: Systems, 111.21
for plasma generating systems.
Subclass:
121.43
With chamber:
This subclass is indented under subclass 121.4. Subject
matter wherein eroding or abrading of the workpiece is
accomplished in an enclosure.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 231.31 fluid
supply with plasma devices.
315, Electric Lamp and Discharge Devices: Systems, 111.21
for plasma generating systems.
Subclass:
121.44
Methods:
This subclass is indented under subclass 131.39. Subject
matter relating to the process of eroding or abrading of a
workpiece by a plasma torch.
Subclass:
121.45
Welding:
This subclass is indented under subclass 121.36. Subject
matter wherein workpiece are fused together by the plasma gas
from a torch.
Subclass:
121.46
Method:
This subclass is indented under subclass 121.45. Subject
matter relating to processes of fusing workpieces by a plasma
gas from a torch.
Subclass:
121.47
Spray coating:
This subclass is indented under subclass 121.36. Subject
matter wherein material is deposited on a workpiece with a
plasma.
SEE OR SEARCH THIS CLASS, SUBCLASS:
76.16 for deposition welding (e.g., coating or building up
with a plasma).
SEE OR SEARCH CLASS:
427, Coating Processes, 446 for spraying involving flame or
plasma coating agent.
Subclass:
121.48
Plasma torch structure:
This subclass is indented under subclass 121.36. Subject
matter having a housing including at least one electrode, a
nozzle for fluid flow passage and a power supply.
(1) Note. The fluid flow passage may carry the working
fluid, shielding fluid or cooling fluid.
Subclass:
121.49
Cooling system:
This subclass is indented under subclass 121.48. Subject
matter wherein a fluid is supplied to the torch for cooling
the nozzle.
Subclass:
121.5
Nozzle system:
This subclass is indented under subclass 121.48. Subject
matter relating to the structural configuration of the distal
end of the torch structure which influence the exit gas flow
rate.
Subclass:
121.51
Gas supply system:
This subclass is indented under subclass 121.48. Subject
matter including structure for delivering working and
shielding gases.
Subclass:
121.52
Electrode structure:
This subclass is indented under subclass 121.48. Subject
matter relating to the cathode configuration.
Subclass:
121.53
Consumable electrode:
This subclass is indented under subclass 121.48. Subject
matter wherein a feed wire electrode is consumed during
heating.
Subclass:
121.54
Control systems:
This subclass is indented under subclass 121.36. Subject
matter including a system to regulate the associated
components of a plasma system.
Subclass:
121.55
Gas supply:
This subclass is indented under subclass 121.54. Subject
matter relating to various gas supplies to the plasma torch
and specific control of the same.
Subclass:
121.56
Arc positioning:
This subclass is indented under subclass 121.54. Subject
matter relating to controlling the location of the arc of the
plasma torch (e.g., by magnetic deflection, XYZ control,
etc.).
Subclass:
121.57
Arc ignition:
This subclass is indented under subclass 121.54. Subject
matter including means for starting an arc.
(1) Note. Between a starter nonconsumable electrode and the
workpiece.
(2) Note. Between a consumable electrode and the
workpiece.
(3) Note. Between the nonconsumable electrode of the torch
and the torch structure.
(4) Note. Arc ignition includes interalia straight and
reverse polarity and the control of power to the electrode.
Subclass:
121.58
With work holder:
This subclass is indented under subclass 121.36. Subject
matter including the support of the workpiece, (e.g., by
roller support, XY table, clamp, etc.).
Subclass:
121.59
Methods:
This subclass is indented under subclass 121.36. Subject
matter relating to processes of heating by an ionized gas
plasma in a furnace or by a plasma torch.
Subclass:
121.6
Using laser:
This subclass is indented under subclass 121.11. Subject
matter using coherent source of amplified light.
(1) Note. Produced by the relaxation of stimulated
molecules or atoms.
SEE OR SEARCH CLASS:
216, Etching a Substrate: Processes, subclass 65 for the
use of a laser in etching.
372, Coherent Light Generators, appropriate subclasses for a
particular coherent light generator or cavity structure.
Subclass:
121.61
Beam energy control:
This subclass is indented under subclass 121.60. Subject
matter which regulates the output of the beam (e.g.,
controlling the excitation source, switching, etc.).
Subclass:
121.62
Condition responsive:
This subclass is indented under subclass 121.61. Subject
matter which controls the beam energy in response to a
detected condition (e.g., reflected radiation).
Subclass:
121.63
Welding:
This subclass is indented under subclass 121.60. Subject
matter wherein a coherent light beam is used to cause two
workpieces to unite by heating.
Subclass:
121.64
Methods:
This subclass is indented under subclass 121.63. Subject
matter including processes of uniting workpieces.
Subclass:
121.65
Melting:
This subclass is indented under subclass 121.60. Subject
matter wherein the coherent light beam liquifies the
workpiece.
Subclass:
121.66
Methods:
This subclass is indented under subclass 121.65. Subject
matter including processes of melting a workpiece using a
coherent light beam.
Subclass:
121.67
Cutting:
This subclass is indented under subclass 121.60. Subject
matter wherein the workpiece is severed by a coherent light
beam.
SEE OR SEARCH CLASS:
607, Surgery: Light, Thermal, and Electrical Application,
subclass 303.1, 84, and 88 for lasers used in surgery for
cutting, coagulation, etc.
Subclass:
121.68
Etching or trimming:
This subclass is indented under subclass 121.67. Subject
matter wherein the cut is superficial or partially through
the workpiece.
SEE OR SEARCH CLASS:
438, Semiconductor Device Manufacturing: Process,
particularly subclass 662 for combined processes for
trimming a conductive pathway on a semiconductive substrate.
Subclass:
121.69
Methods:
This subclass is indented under subclass 121.68. Subject
matter including processes of etching or trimming the
workpiece.
Subclass:
121.7
Hole punching:
This subclass is indented under subclass 121.67. Subject
matter including perforating a workpiece.
SEE OR SEARCH CLASS:
131, Tobacco, subclass 281 for cigarette making including
perforating.
Subclass:
121.71
Methods:
This subclass is indented under subclass 121.70. Subject
matter including the processes of perforating a workpiece.
SEE OR SEARCH CLASS:
131, Tobacco, subclass 281 for cigarette making including
perforating.
Subclass:
121.72
Methods:
This subclass is indented under subclass 121.67. Subject
matter including the process of severing a workpiece.
Subclass:
121.73
Shaping:
This subclass is indented under subclass 121.60. Subject
matter including focusing of a coherent light beam.
Subclass:
121.74
With mirror:
This subclass is indented under subclass 121.73. Subject
matter wherein mirrors are used to focus the coherent light
beam.
Subclass:
121.75
With lens:
This subclass is indented under subclass 121.73. Subject
matter wherein lenses are used to focus the coherent light
beam.
Subclass:
121.76
Multiple beams:
This subclass is indented under subclass 121.60. Subject
matter having plural coherent light beams.
Subclass:
121.77
With single source:
This subclass is indented under subclass 121.76. Subject
matter having plural beams using a beam splitter.
SEE OR SEARCH CLASS:
359, Optics: Systems (Including Communication) and Elements,
618 for beam deflection or splitting.
Subclass:
121.78
Beam position control:
This subclass is indented under subclass 121.60. Subject
matter wherein the coherent light beam is positioned on a
workpiece by relative movement of the beam (e.g., X-Y table
movement reflector movement, rotary discs).
Subclass:
121.79
Path adjustment:
This subclass is indented under subclass 121.78. Subject
matter relating to changing the location of the light beam by
changing the path.
(1) Note. The beam path can be changed by telescopic
movement, fiber optics movement, robotic movement.
SEE OR SEARCH CLASS:
901, Robots, subclass 42 for welding devices.
Subclass:
121.8
Swept or scanned:
This subclass is indented under subclass 121.78. Subject
matter including oscillating or reciprocating the coherent
light beam.
SEE OR SEARCH CLASS:
359, Optics: Systems (Including Communication) and Elements,
subclass 212 and 223+ for light deflection using a
reflective element.
Subclass:
121.81
Condition responsive:
This subclass is indented under subclass 121.78. Subject
matter wherein the coherent light beam is positioned in
response to a detected condition.
(1) Note. For example, a feed back signal from reflected
light is used to control an XY movement. Position sensors
are used for computer control of digital deflector and XY
movement.
Subclass:
121.82
Workpiece position control:
This subclass is indented under subclass 121.60. Subject
matter including control of the movement of a workpiece in an
XY or XYZ position.
Subclass:
121.83
With monitoring:
This subclass is indented under subclass 121.60. Subject
matter including observation of the position of the coherent
light beam on the workpiece (e.g., by microscope, C.R.T.,
etc.).
Subclass:
121.84
With fluid supply:
This subclass is indented under subclass 121.60. Subject
matter including fluid supply means for cooling or cleaning
the laser apparatus or workpiece.
(1) Note. A working fluid is one which gives an exothermic
reaction with the operation of the applied beam. A cooling
fluid is used to cool some part (mirror, etc.) of the light
beam apparatus and a cleaning fluid is used to clean a
particular element of the apparatus such as the lens.
SEE OR SEARCH CLASS:
372, Coherent Light Generators, subclass 35 for liquid
coolant.
Subclass:
121.85
Method:
This subclass is indented under subclass 121.60. Subject
matter including processes applying a coherent light beam to
a workpiece (e.g., welding, cutting, perforating, etching,
etc.).
Subclass:
121.86
Chamber:
This subclass is indented under subclass 121.60. Subject
matter wherein the workpiece is in a hermetically sealed
enclosure.
Subclass:
122
This subclass is indented under subclass 121. Subject matter
in which the path of the arc through space is controlled.
(1) Note. The arc, for example, between stationary
electrodes may be deflected, so as to impinge against the
work, by means of a gas blast.
SEE OR SEARCH THIS CLASS, SUBCLASS:
69 for this subject matter utilized for metal cutting or
disintegrating.
73 for the feeding of slag to an electric metal heating
arc.
74 for this subject matter.
Subclass:
123
This subclass is indented under subclass 122. Subject matter
in which the means for controlling the course of the arc is a
magnetic means.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 153 for this
subject matter, not utilized for metal heating, and consult
the search notes thereto for related art.
Subclass:
124.01
With ignition by retraction:
This subclass is indented under subclass 121. Subject matter
wherein the arc heating means is initiated by a drawn arc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
130.4 for arc ignition and stabilization arrangements with
arc-power supplies.
Subclass:
124.02
With gap control:
This subclass is indented under subclass 121. Subject matter
wherein the arc torch is regulated by sensor means responsive
to an arc current or voltage characteristic occurring in the
gap between the arc torch and the work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
69 for gap spacing control in cutting or disintegrating
electric heating.
130.01 for circuits for monitoring arc parameters.
130.21 for automatic output control of arc-power supplies.
Subclass:
124.03
By arc voltage:
This subclass is indented under subclass 124.02. Subject
matter having sensor means responsive to the voltage
occurring in the gap between the arc torch and the work.
Subclass:
124.1
With automatic positioning of arc:
This subclass is indented under subclass 121. Subject matter
wherein sensor means in response to a sensed condition
controls automatic control means to position the arc.
SEE OR SEARCH CLASS:
901, Robots, subcollection 10 for a robot arm in which an
sensor physically contacts and follows the work contour to
control the arm movement and subcollection 42 for an art
collection of welding robots.
Subclass:
124.21
Including work cutting:
This subclass is indented under subclass 124.1. Subject
matter including means to sever work during or after the
welding process.
SEE OR SEARCH THIS CLASS, SUBCLASS:
78.15 for resistance welding with work cutting means.
Subclass:
124.22
In response to work shape:
This subclass is indented under subclass 124.1. Subject
matter wherein the sensor responds to the form of the work to
be welded.
Subclass:
124.31
Having carriage supported by work:
This subclass is indented under subclass 124.22. Subject
matter wherein the arc torch support is provided by the work
during the welding operation.
Subclass:
124.32
Having variable welding head travel rate (e.g., gravity
feed):
This subclass is indented under subclass 124.22. Subject
matter wherein the arc torch moves at different speeds over
the weld area of the work.
Subclass:
124.33
Having electrode angle control:
This subclass is indented under subclass 124.22. Subject
matter including means for regulating the orientation between
the arc torch and the work.
Subclass:
124.34
By using probe means:
This subclass is indented under subclass 124.22. Subject
matter including mechanical, optical, or magnetic work shape
sensor means.
(1) Note. This subclass includes feedback circuit for
control.
Subclass:
124.4
In response to work position:
This subclass is indented under subclass 124.1. Subject
matter wherein sensed changes in the work orientation
regulate movement of the arc torch.
Subclass:
124.5
In response to the transfer rate of the weld metal:
This subclass is indented under subclass 124.1. Subject
matter wherein sensor means respond to the weld metal deposit
rate to control the arc torch position.
Subclass:
125.1
With predetermined welding operation:
This subclass is indented under subclass 121. Subject matter
wherein the welding process is performed in accordance with a
preset schedule of operation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
86.7 for predetermining welding operation of adjustable
electrode support, spot bonding means.
SEE OR SEARCH CLASS:
901, Robots, subcollection 10 for a robot arm in which a
sensor physically contacts and follows the work contour to
control the arm movement and subcollection 42 for an art
collection of welding robots.
Subclass:
125.11
For closed path welding (e.g., circumferential welding):
This subclass is indented under subclass 125.1. Subject
matter wherein during a continuous welding operation, the
welder returns at least once to a point in the previously
welded path.
SEE OR SEARCH THIS CLASS, SUBCLASS:
60.2 for annular arc butt welding of heat exchange tubes to
a perforated plate.
Subclass:
125.12
For oscillating electrode welding:
This subclass is indented under subclass 125.1. Subject
matter wherein the arc torch welds across the width of the
work seam with a reciprocal motion.
Subclass:
126
This subclass is indented under subclass 125.1. Subject
matter in which the work is vertical.
(1) Note. The bonding operation may take place, for
example, at a horizontal or a vertical seam of a vertical
wall of a metal tank.
Subclass:
127
This subclass is indented under subclass 121. Subject matter
in which the arc is not moved continuously with respect to
the work but touches it only at isolated points and in which
the heat of the arc is used for bonding.
(1) Note. This is sometimes known as arc riveting or plug
welding.
SEE OR SEARCH THIS CLASS, SUBCLASS:
87 for similar subject matter in resistance welding.
Subclass:
128
This subclass is indented under subclass 121. Subject matter
in which the metal heated by the arc is worked after being
deposited.
(1) Note. A deposited weld bead, for example, may be peened
while it is cooling.
Subclass:
129
This subclass is indented under subclass 121. Subject matter
relating to brazing or soldering.
SEE OR SEARCH THIS CLASS, SUBCLASS:
69 for spark producing.
85.1 for similar subject matter utilizing pressure.
121 for initiating plasma arc.
136 for similar subject matter utilized for welding.
SEE OR SEARCH CLASS:
315, Electric Lamp and Discharge Devices: Systems, for spark
producing circuits.
Subclass:
130.01
Including circuits for monitoring arc parameters:
This subclass is indented under subclass 121. Subject matter
including circuit means for sensing and indicating arc
conditions.
(1) Note. The monitoring does not include a control
function.
SEE OR SEARCH THIS CLASS, SUBCLASS:
109 for resistance welding indicating.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, appropriate
subclasses for circuits for measuring and testing
electricity.
Subclass:
130.1
Including arc-power supplies:
This subclass is indented under subclass 121. Subject matter
including circuit means for providing electrical energy for
arc welding.
SEE OR SEARCH THIS CLASS, SUBCLASS:
69 for electric arc machining.
108 for resistance welding power supplies.
Subclass:
130.21
With automatic output control (e.g., short circuit,
infrared):
This subclass is indented under subclass 130.1. Subject
matter including circuit means for regulating the output in
response to a sensed condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
110 resistance welding with control in response to current,
voltage, or temperature.
124.02 for gap control in arc welding.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
appropriate subclasses for automatic output control.
Subclass:
130.31
Responsive to arc voltage only:
This subclass is indented under subclass 130.21. Subject
matter wherein the sensed condition pertains to the arc
voltage
SEE OR SEARCH THIS CLASS, SUBCLASS:
124.03 for gap control by arc voltage in arc welding.
Subclass:
130.32
Responsive to arc current only:
This subclass is indented under subclass 130.21. Subject
matter wherein the sensed condition pertains to the arc
current.
Subclass:
130.33
Responsive to both arc voltage and arc current:
This subclass is indented under subclass 130.21. Subject
matter wherein the sensed condition pertains to arc voltage
and arc current.
Subclass:
130.4
With arc ignition and stabilization arrangements:
This subclass is indented under subclass 130.1. Subject
matter including circuit means to initiate and maintain an
electric welding arc.
Subclass:
130.5
With predetermined time variation of arc voltage or current
(e.g., programmed):
This subclass is indented under subclass 130.1. Subject
matter including circuit means to constrain the arc voltage
or current to follow a preestablished temporal pattern.
SEE OR SEARCH THIS CLASS, SUBCLASS:
125.1 for predetermined arc welding operation.
Subclass:
130.51
Pulsating or periodic output:
This subclass is indented under subclass 130.5. Subject
matter wherein the preestablished temporal pattern exhibits a
nonsinusoidal repeating waveform.
(1) Note. This subject matter will include square waves or
rectified sinusoids.
Subclass:
132
This subclass is indented under subclass 130.1. Subject
matter having remote control.
(1) Note. A weld rod holder, for example, may be provided
with means to remotely start a motor-generator set which
supplies the current for the arc.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 201 for miscellaneous motor-generator systems.
340, Communications: Electrical, 825 for miscellaneous
remote control systems.
Subclass:
133
This subclass is indented under subclass 130.1. Subject
matter having a generator for generating the current used in
the electric arc.
(1) Note. The generator, for example, may be driven by a
prime mover.
SEE OR SEARCH CLASS:
290, Prime-Mover Dynamo Plants, appropriate subclasses for
engine driven generator systems.
Subclass:
134
This subclass is indented under subclass 133. Subject matter
in which the generator is driven by an electric motor.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems, 10
for miscellaneous motor-generator systems.
Subclass:
136
This subclass is indented under subclass 121. Subject matter
relating to welding.
SEE OR SEARCH THIS CLASS, SUBCLASS:
129 for similar subject matter utilized for soldering.
SEE OR SEARCH CLASS:
428, Stock Material or Miscellaneous Articles, 615 for
composite metallic stock comprising welded joints
characterized by the composition of the parts joined and/or
the filler metal.
Subclass:
137
This subclass is indented under subclass 136. Processes.
Subclass:
137.2
With consumable electrode device:
This subclass is indented under subclass 121. Subject matter
including means having current carrying, fusible weld
material as a welding electrode.
SEE OR SEARCH THIS CLASS, SUBCLASS:
72 for consumable electrode welding with nonatmospheric
environment at hot spot.
75 for nonconsumable electrode devices.
124.32 for gravity feed consumable electrode arc welding.
Subclass:
137.31
Gun:
This subclass is indented under subclass 137.2. Subject
matter including means for projecting the weld material or
necessary weld environmental elements to the weld site.
Subclass:
137.41
Having fume extractor:
This subclass is indented under subclass 137.31. Subject
matter including means for the removal of gaseous material
from the arc weld site.
Subclass:
137.42
Having gas flow limiting shape (e.g., gas diffuser):
This subclass is indented under subclass 137.31. Subject
matter wherein the nozzle is of a form which restricts the
travel of gas toward the weld site.
Subclass:
137.43
Having spatter shield:
This subclass is indented under subclass 137.31. Subject
matter including means to protect nozzle elements from weld
splash back.
Subclass:
137.44
Having integral electrode guide:
This subclass is indented under subclass 137.31. Subject
matter including means to direct an electrode through the
welding gun.
Subclass:
137.51
With flexibility:
This subclass is indented under subclass 137.44. Subject
matter wherein the guide is capable of being bent.
Subclass:
137.52
With wear resistant liner:
This subclass is indented under subclass 137.44. Subject
matter including durable insert means for protection against
deterioration of the guide means.
Subclass:
137.61
Having filler electrical contact structure:
This subclass is indented under subclass 137.31. Subject
matter including structural means to ensure electrical
connection between a traveling filler and an electrically
conductive component of the nozzle.
Subclass:
137.62
Having cooling means:
This subclass is indented under subclass 137.31. Subject
matter including means to maintain or lower the temperature
of the welding gun.
SEE OR SEARCH THIS CLASS, SUBCLASS:
61.7 for cylinder resistance welding with cooling means.
76.11 for deposition welding with cooling means.
Subclass:
137.63
Having supply connection means (e.g., quick disconnect):
This subclass is indented under subclass 137.31. Subject
matter including means to attach the nozzle to source of weld
current or materials.
Subclass:
137.7
Rate control:
This subclass is indented under subclass 137.2. Subject
matter including means to regulate the feed speed of the
filler material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
130.21 for automatic output control for arc-power supplies.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, 40 for oscillating or rotating, nonconsumable
electrodes with interconnected feed mechanisms.
Subclass:
137.71
Circuits:
This subclass is indented under subclass 137.7. Subject
matter including electrical circuits for controlling the rate
of feeding consumable filler to the welding arc.
Subclass:
137.8
Including filler wire deforming:
This subclass is indented under subclass 137.2. Subject
matter including means to bend filler wire prior to passage
to the welding torch.
Subclass:
137.9
Supply cables (e.g., for current, shielding gas, coolant):
This subclass is indented under subclass 137.2. Subject
matter including conduit means for providing weld current or
materials.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 15.7
for welding cables.
Subclass:
138
This subclass is indented under subclass 121. Subject matter
relating to arc electrode holders.
SEE OR SEARCH CLASS:
439, Electrical Connectors, appropriate subclasses for the
subject matter when not disclosed as useful in electric arc
heating of metal. Note especially 241.
Subclass:
139
This subclass is indented under subclass 138. Subject matter
having means for holding plural electrodes in adjustable
relation.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 147 for
similar subject matter not used for metal heating.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 134 for analogous structure in arc
lamps.
Subclass:
140
This subclass is indented under subclass 138. Subject matter
in which the electrode is held in a spring jaw.
(1) Note. The electrode rod, for example, may be used to
spring resilient jaws sufficiently far apart so that it may
be inserted between them.
Subclass:
141
This subclass is indented under subclass 140. Subject matter
having means, separate from the spring jaws, for actuating
the spring jaws.
Subclass:
142
This subclass is indented under subclass 138. Subject matter
having a jaw which moves longitudinally of the axis of the
electrode holder.
Subclass:
143
This subclass is indented under subclass 142. Subject matter
in which the longitudinally moving jaw is spring biased.
Subclass:
144
This subclass is indented under subclass 138. Subject matter
in which means are provided for positively gripping the
electrode.
SEE OR SEARCH THIS CLASS, SUBCLASS:
142 for this subject matter where the electrode jaw moves
longitudinally of the axis of the electrode holder.
Subclass:
145.1
Weld rod structure:
This subclass is indented under subclass 121. Subject matter
including physical organization of the electrode or filler
used in arc welding.
SEE OR SEARCH CLASS:
427, Coating Process, 58 for processes of forming weld rods
by coating.
428, Stock Material or Miscellaneous Articles, 379 for a rod
which is merely coated and may be utilized as an arc welding
electrode and is not classified elsewhere.
Subclass:
145.21
Nonconsumable:
This subclass is indented under subclass 145.1. Subject
matter wherein the weld rod electrode is of a nonfiller
material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
146.21 for subject matter related to composition.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 231.03 for similar
electrodes not for welding.
Subclass:
145.22
Flux cored:
This subclass is indented under subclass 145.1. Subject
matter wherein a granular arc shielding material is encased
by a sheath of filler metal.
(1) Note. Weld rods defined merely as cored rods are not
classified herein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
146.3 for composition of flux.
Subclass:
145.23
Flux coated:
This subclass is indented under subclass 145.1. Subject
matter wherein a granular arc shielding material covers the
outer surface of filler metal.
(1) Note. A weld rod defined merely as a flux-coated rod is
not classified herein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
146.3 for composition of flux.
Subclass:
145.31
Partially:
This subclass is indented under subclass 145.23. Subject
matter wherein only part of filler metal outer surface is
covered.
Subclass:
145.32
With wire wrap:
This subclass is indented under subclass 145.23. Subject
matter including a metal strand wound around the filler
metal.
Subclass:
145.41
Nonmetal cover:
This subclass is indented under subclass 145.1. Subject
matter including a sheath of a material other than metal.
Subclass:
146.1
Weld rod composition:
This subclass is indented under subclass 121. Subject matter
relating to the chemical makeup of the arc electrode or
filler.
(1) Note. Weld rods defined merely as alloy rods are not
classified herein.
SEE OR SEARCH CLASS:
420, Alloy or Metallic Compositions, 122.1 for arc electrode
or filler alloys, per se.
Subclass:
146.21
Nonconsumable:
This subclass is indented under subclass 146.1. Subject
matter wherein the material of the arc electrode is of a
nonfiller material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
145.1 for structure of nonconsumable electrodes.
Subclass:
146.22
Nonferrous:
This subclass is indented under subclass 146.1. Subject
matter relating to weld rods containing metal other than iron
as primary constituent.
Subclass:
146.23
Containing nickel, chromium, and iron:
This subclass is indented under subclass 146.1. Subject
matter wherein the electrode contains at least some quantity
of each of nickel, chromium, and iron.
Subclass:
146.24
Metal deoxidizer or denitrogenizer:
This subclass is indented under subclass 146.1. Subject
matter including a scavenger of oxygen or nitrogen of a
metallic material within the filler.
Subclass:
146.30
Particulate:
This subclass is indented under subclass 146.24. Subject
matter wherein a scavenger material is included within a
granular material.
Subclass:
146.31
Particulate:
This subclass is indented under subclass 146.1. Subject
matter including a granular material.
Subclass:
146.32
Alloying:
This subclass is indented under subclass 146.31. Subject
matter wherein at least a part of the granular material is to
be added to the weld deposit.
Subclass:
146.41
Nickel or chromium:
This subclass is indented under subclass 146.32. Subject
matter wherein the material to be added to the weld deposit
includes nickel or chromium.
Subclass:
146.51
Containing carbide:
This subclass is indented under subclass 146.31. Subject
matter wherein at least part of the granular material is a
carbide.
Subclass:
146.52
Shielding:
This subclass is indented under subclass 146.31. Subject
matter including materials which decompose to provide
protection to the weld site from atmospheric contamination.
SEE OR SEARCH THIS CLASS, SUBCLASS:
73.2 for this subject matter.
SEE OR SEARCH CLASS:
148, Metal Treatment, 23 for fluxing compositions, per se.
252, Compositions, 500 for arc shielding compositions.
501, Compositions: Ceramic, subclass 28 for glass batch
forming compositions containing slag.
Subclass:
147
This subclass is indented under subclass 121. Subject matter
having means for protecting the eyes of the operator from the
effects of the arc.
(1) Note. The eye shield may, for example, have a shutter
which is caused to automatically shut when arc current is
drawn.
SEE OR SEARCH CLASS:
2, Apparel, subclass 432 for goggles having an antiglare
lens.
351, Optics: Eye Examining, Vision Testing and Correcting,
44 for eyeglasses with light reducing means.
359, Optics: Systems (Including Communication) and Elements,
885 for visual filters.
Subclass:
148
This subclass is indented under subclass 50. Subject matter
related to the bonding of metal by the heat developed by an
electric current.
(1) Note. This subclass relates, for example, to
miscellaneous bonding accessories, not above provided for,
such as grounding clamps.
Subclass:
149
This subclass is indented under subclass 50. Subject matter
combined with forging or shaping of the workpiece.
SEE OR SEARCH THIS CLASS, SUBCLASS:
51 for this subject matter where the workpiece is chain.
56 for this subject matter where the workpiece is wire, rod
or bar.
59.1 for this subject matter where the workpiece is a tube.
68 for this subject matter where the shaping is cutting.
78.01 for this subject matter where the workpiece is bonded
to another by application of pressure while heated.
SEE OR SEARCH CLASS:
72, Metal Deforming, appropriate subclasses for plastic metal
shaping not involving significant electric heating.
Subclass:
150
This subclass is indented under subclass 149. Subject matter
in which the forging or shaping is upsetting.
Subclass:
151
This subclass is indented under subclass 150. Subject matter
in which one of the electrodes utilized to apply electric
current to the workpiece also acts as an anvil for upsetting
the work.
Subclass:
152
This subclass is indented under subclass 150. Subject matter
in which the upsetting takes place simultaneously with the
heating.
(1) Note. Either heating or upsetting may also, in addition
to the defined mode, occur by itself.
Subclass:
153
This subclass is indented under subclass 149. Subject matter
in which the forging or shaping is bending or twisting.
Subclass:
154
This subclass is indented under subclass 149. Subject matter
in which the forging or shaping takes place after the
electric heating.
Subclass:
155
This subclass is indented under subclass 50. Subject matter
in which the metal heated is an endless strip.
SEE OR SEARCH CLASS:
226, Advancing Material of Indeterminate Length, appropriate
subclasses for methods of, and apparatus for, feeding
material without utilizing the leading or trailing ends to
effect movement of the material.
242, Winding, Tensioning, or Guiding, appropriate subclasses
for winding, tensioning, or guiding elongated material in
general which may include endless material.
Subclass:
156
This subclass is indented under subclass 50. Subject matter
in which the metal heated is a rod or bar.
SEE OR SEARCH THIS CLASS, SUBCLASS:
56 for similar subject matter.
SEE OR SEARCH CLASS:
226, Advancing Material of Indeterminate Length, appropriate
subclasses for methods of, and apparatus for, feeding
material without utilizing the leading or trailing ends to
effect movement of the material.
Subclass:
157
This subclass is indented under subclass 50. Subject matter
in which the metal heated is a rivet.
Subclass:
158
This subclass is indented under subclass 50. Subject matter
relating to workpiece holders.
SEE OR SEARCH CLASS:
269, Work Holders, for unheated devices.
Subclass:
159
This subclass is indented under subclass 158. Subject matter
having a rotating support for the workpiece.
Subclass:
160
This subclass is indented under subclass 158. Subject matter
having a mandrel.
Subclass:
161
This subclass is indented under subclass 158. Subject matter
having clamping means.
Subclass:
162
This subclass is indented under subclass 50. Methods.
SEE OR SEARCH THIS CLASS, SUBCLASS:
58 for wire, rod or bar electric heating methods.
83 for electric pressure bonding methods utilizing roller
electrodes.
91.1 for miscellaneous spot pressure electric bonding
methods.
96 for percussive electric bonding methods.
99 100, for flash electric bonding methods.
104 for butt electric bonding methods.
117.1 for miscellaneous pressure electric bonding methods.
137 for arc welding methods.
603 for induction heating.
Subclass:
200
This subclass is indented under the class definition.
Subject matter which includes significant structural details
of miscellaneous devices of general utility whereby
electrical energy is converted to thermal energy and in which
thermal energy is utilized to raise the temperature of some
material or object from a first value to a second higher
value and not otherwise classifiable above in this class or
other art class. In order to be classifiable in this class
the claimed subject matter should include only means for
utilizing the thermal energy generated in general terms.
(1) Note. The patents in this and the indented subclasses
include only those devices in which the claimed subject
matter includes specific details of electrical heating means
whereby thermal energy is generated and transmitted to a
space or an object (load) with no significant structural
details of the load recited.
(2) Note. The heating devices to be found herein include
specifically recited electrical heating devices combined with
material to be heated in which the claimed combination does
not constitute a part of a system or apparatus properly
classified in another art class and subcombinations or
elements of such heating devices which do not of themselves
comprise subject matter classifiable elsewhere.
(3) Note. Patents in which the claimed subject matter is
restricted to methods of heating and in which no apparatus
claims appear will not ordinarily be classified in this or
the indented subclasses, except in cases where an apparatus
of the type, which if claimed, would be classifiable in this
class, is shown and disclosed and there is no other
appropriate class for the method alone.
(4) Note. Patents claiming the combination of particular
art device structure with electric heater structure are, in
general, classified with the particular art device.
(5) Note. Patents in which the claimed subject matter
includes means to effect a change of physical state or of
chemical composition of a material, and which may include
electric heating means, will not be found in this class, but
in the appropriate physical or chemical change class to which
it appertains. The only exceptions provided for in this
class are electric water heaters which may in the process of
heating the water, generate steam or vapor and wherein no
specific use of the steam or vapor aside from assisting in
the heating function is claimed and electrically heated
vessels and crucibles which may be utilized for melting
material at low melting temperatures.
(6) Note. Patents in which the claimed subject matter
includes both heating and cooling of a material in sequence
will not ordinarily be found in this class. Class 165 is the
generic class relating to the transfer of heat from one
material to another and includes all means for modifying
temperature not found in other classes. Subclass 58 of Class
165, e.g., provides for selectively or simultaneously heating
and cooling external material. For other classes and
subclasses utilizing heat exchange, see "SEARCH CLASS" under
the class definition of Class 165.
(7) Note. See "SEARCH CLASS" under Paragraph II in the
class definition above and see SEARCH CLASS notes below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
50 for electrical metal heating apparatus or methods.
600 for inductive heating.
678 for microwave heating.
764 for capacitive dielectric heating.
SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, 250.05 for
window cleaning attachments combined with heating means
(including electrical heaters). (See (7) Note, above.)
36, Boots, Shoes, and Leggings, subclass 2.6 for those with
heaters. (See (7) Note, above.)
53, Package Making, subclass 373.7, and see the "Notes"
thereto for heat seaming combined with a packaging
operations. (See (7) Note, above.)
99, Foods and Beverages: Apparatus, 324 for cooking
apparatus, especially subclass 358 for electrode type of
cooking apparatus that heats food by running electricity
through it.
100, Presses, 92 for a press including means of treating
material by heating, cooling, or drying.
126, Stoves and Furnaces, 204 for body warmers having
nonelectrical heating means. (See (7) Note, above.)
165, Heat Exchange, see (6) Note above. 196, Mineral Oils:
Apparatus, subclass 121, for electrically heated mineral oil
apparatus. (See (7) Note, above.)
201, Distillation: Processes, Thermolytic, subclass 19 for
a thermolytic distillation process in which the distilland is
heated by electrical energy. (See (7) Note, above.)
204, Chemistry: Electrical and Wave Energy, for chemical
processes and apparatus for utilizing electrical energy for
purposes other than mere heating. (See (7) Note, above.)
250, Radiant Energy, subclass 324 for methods and apparatus
to irradiate objects by corona irradiations, subclasses 428+
for methods and apparatus to contain, support or transport
fluent material with or without irradiating the material,
subclasses 453.11+ for methods and apparatus to support an
object with or without an irradiating source and subclasses
492.1+ for methods and apparatus to irradiate objects or
material. (See (7) Note, above.)
313, Electric Lamp and Discharge Devices, subclass 337 for
indirectly heated cathodes for electric space discharge
devices which consist of a heater and a separate cathode
surface which is to be heated thereby. (See (7) Note,
above.)
338, Electrical Resistors, appropriate subclasses, for
electrical resistors commonly called heaters but not
characterized by some feature especially adapting the unit
for use as a heater. See also the reference to Class 338
under the class definition above, and also see the class
definition of Class 338. (See (7) Note, above.)
374, Thermal Measuring and Testing, subclass 182 for a
thermocouple thermometer having reference junction
temperature control. (See (7) Note, above.)
383, Flexible Bags, subclass 901 for nonelectrical heating
bag. (See (7) Note, above.)
604, Surgery, subclass 114 for electrical means for heating
or cooling the body device, or the treating material
introduced or removed from the body. (See (7) Note, above.)
607, Surgery: Light, Thermal, and Electrical Application,
subclass 96 for devices for modifying the temperature of the
body limited by claimed structure to therapeutic use. (See
(7) Note, above.)
Subclass:
201
This subclass is indented under subclass 200. Subject matter
wherein the heating device is combined with other devices or
mechanical structure having an added purpose or utility
independent of the heating device and in which the utility of
the other art device is not destroyed by the removal of or
deactivation of the heating device and which claimed
combination does not include sufficient specific structure of
the other art device as to be classified either with the
other art device, per se, or elsewhere.
(1) Note. See the appropriate other art class in the Manual
of Classification for specific other art devices which are
combined with heating means.
Subclass:
202
This subclass is indented under subclass 201. Subject matter
wherein the diverse type art device comprises a vehicle or
component thereof. The component may be a device which aside
from and taken separately from the combination with a vehicle
may have attained a separate status in the art; for instance,
carburetor, radiator, etc.
SEE OR SEARCH CLASS:
105, Railway Rolling Stock, subclass 451 for heating devices
for rolling stock.
123, Internal-Combustion Engines, 543 for carburetors with
heating, subclasses 41.01+ for cooling systems, subclasses
145+ for incandescent igniters, and subclass 142.5 for
heating means.
180, Motor Vehicles, appropriate subclasses for a motor
vehicle, generally, and for a motor vehicle having a
component of a kind which is specifically provided for
therein.
237, Heating Systems, 5 for automatic air heaters,
subclasses 12.4+ for heat and power plants for cars and
subclasses 28+ for vehicle heaters in general.
244, Aeronautics, subclass 134 for ice prevention devices
for air craft.
296, Land Vehicles: Bodies and Tops, 84.1 for windshields.
Subclass:
203
This subclass is indented under subclass 202. Subject matter
wherein the diverse type art device comprises a windshield or
other transparent surface of a vehicle provided for the
purpose of admission of light or air or viewing the area
exterior to the vehicle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
522 for wherein a housing or casing may perform plural
functions (e.g., heated transparent housing).
SEE OR SEARCH CLASS:
244, Aeronautics, subclass 121 for shields and other
protective devices, and subclass 134 for ice prevention
devices.
296, Land Vehicles: Bodies and Tops, 84.1 for windshields.
Subclass:
204
This subclass is indented under subclass 202. Subject matter
wherein the other art device comprises the steering wheel or
other steering device for a vehicle.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclass 552 for hand
steering wheels.
180, Motor Vehicles, 400 for motor vehicle steering gear.
Subclass:
205
This subclass is indented under subclass 202. Subject matter
wherein the diverse type art device comprises the motor or a
component thereof of a vehicle.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclass 142.5 for
internal combustion engines with external heating means and
subclasses 145+ for engines with incandescent igniters.
Subclass:
206
This subclass is indented under subclass 205. Subject matter
wherein the other art device comprises the manifold of an
internal combustion engine.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclass 142.5 for
internal combustion engines with external heating means for
heating some part or adjunct thereof.
Subclass:
207
This subclass is indented under subclass 205. Subject matter
wherein the other art device comprises carburetor means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
271 for heating devices with vaporizing means.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclass 26 for
carburetors providing additional air supply, and subclasses
434+ for charge forming devices for internal combustion
engines.
261, Gas and Liquid Contact Apparatus, 127 for devices
combined with external supply or removal of heat,
particularly indented subclasses 139 and 142 for such devices
with electric heaters.
Subclass:
208
This subclass is indented under subclass 205. Subject matter
wherein the other art device comprises the radiator or other
part of the cooling system of an automobile.
SEE OR SEARCH THIS CLASS, SUBCLASS:
296 for liquid heaters having forced circulation means,
subclasses 379+ for fluid heaters in general utilizing forced
circulation, and subclasses 375, 404, 434, 443, 466, 530, and
540 for heaters with heat storage or transfer means.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, 41.04 for cooling system
structure, and subclass 142.5 for the combination of an
internal combustion engine with external means for heating
the radiator.
137, Fluid Handling, subclass 341 for means for heating or
cooling fluid handling systems combined with electrical
heating means for the system.
165, Heat Exchange, 41 for heat exchange devices combined
with vehicle feature.
180, Motor Vehicles, 68.4 for a motor vehicle having means
for mounting a radiator for the vehicles motor.
Subclass:
209
This subclass is indented under subclass 201. Subject matter
wherein the other art device comprises a device which is
electrically operated or whose operative function is to
control the condition of an electrical circuit, such as a
motor or switch.
SEE OR SEARCH THIS CLASS, SUBCLASS:
511 for thermally responsive circuit actuating means with
auxiliary heating means.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, 341 for
piezoelectric crystals combined with temperature control
means, subclass 16 for reciprocating dynamoelectric devices
with temperature modification means and subclass 110 for
clutches or brakes with means to dissipate induced energy in
an external impedance.
313, Electric Lamp and Discharge Devices, 15 for discharge
devices with electric heater temperature modifying means.
315, Electric Lamp and Discharge Devices: Systems, 32 for
systems with load device temperature modifying means and
electrical circuit device, particularly subclasses 46+ and
49+.
322, Electricity: Single Generator Systems, subclass 81 for
thermally varied resistance impedance circuit control means.
329, Demodulators, subclass 202 for detectors wherein the
signals effect a thermal charge in an impedance.
331, Oscillators, subclass 70 for oscillators with a
temperature modifier and, subclass 78 for electrical noise or
random wave generators of a gaseous type with heating coil
means.
332, Modulators, appropriate subclasses for thermal
modulators.
336, Inductor Devices, 55 for inductor devices with
temperature modification means.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 75, 102+, 120, 141, and 377 for specific
type electrothermal and thermal responsive actuating means.
338, Electrical Resistors, subclass 7 for temperature
compensated resistive value of a resistor, and subclass 23
for an indirectly heated thermistor.
340, Communications: Electrical, subclass 387.1 for an
audible signaling device with weatherproofing (e.g., means to
melt sleet off of a signal device, etc.).
343, Communications: Radio Wave Antennas, subclass 704 for
antennas with ice clearer or prevention means.
Subclass:
210
This subclass is indented under subclass 209. Subject matter
wherein the other art device comprises a piezo crystal or
other vibratory device.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, 341 for
piezoelectric crystals with temperature control means, and
subclass 16 for reciprocating or vibratory motors with
temperature modification.
Subclass:
211
This subclass is indented under subclass 201. Subject matter
wherein the other art device comprises a garment or other
article of wearing apparel, usually having means whereby the
apparel may be attached to or supported by the human body.
SEE OR SEARCH THIS CLASS, SUBCLASS:
527 for heating unit adapted to be body supported.
SEE OR SEARCH CLASS:
2, Apparel, appropriate subclasses for particular structure
of devices of wearing apparel for the body which may be
combined with heating means.
36, Boots, Shoes, and Leggings, subclass 2.6 for boots and
shoes combined with electric heating means.
126, Stoves and Furnaces, 204 for body warmers consisting of
a garment combined with nonelectric heating means.
607, Surgery: Light, Thermal, and Electrical Application,
subclass 1.5 for electrically heated garments combined with
means for setting up an electric field for the treatment of
the body, subclass 96 for light, thermal, or electrical
applicators adapted to be worn on the body for therapeutic
reasons, and subclass 143 for body member enclosing thermal
applicator.
Subclass:
212
This subclass is indented under subclass 201. Subject matter
wherein the other art device comprises a blanket or other bed
covering.
SEE OR SEARCH THIS CLASS, SUBCLASS:
529 for flexible heating unit structure utilizing cloth or
other fabric.
549 for heating element with support of flexible material.
SEE OR SEARCH CLASS:
5, Beds, 421 for a bed, bed clothing, or a bed accessory
combined with heating means.
607, Surgery: Light, Thermal, and Electrical Application,
subclass 1 for beds with thermal or electrical energy
applicators, and subclass 96 for thermal applicators in
general.
Subclass:
213
This subclass is indented under subclass 201. Subject matter
wherein the other art device comprises an element of a
building, road, pavement or other permanently fixed static
structure.
SEE OR SEARCH CLASS:
104, Railways, subclass 279 for electric rail heaters.
119, Animal Husbandry, 302 for brooder houses with heating
means, and subclass 73 for stock watering troughs with
temperature control.
165, Heat Exchange, subclass 49 for radiant building
panels.
191, Electricity: Transmission to Vehicles, subclass 27 for
heated conductors of the third rail type.
246, Railway Switches and Signals, subclass 428 for heated
switches.
392, Electric Resistance Heating Devices, 453 for panel-type
radiant heating devices adapted to form a part of or be
attached to a building structure.
405, Hydraulic and Earth Engineering, subclass 131 for
radiant panels used for thawing the earth.
Subclass:
214
This subclass is indented under subclass 201. Subject matter
wherein the other art device comprises a vending, dispensing
or display device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
267 for igniters of the cigar or cigarette lighter type
which may be disclosed as combined with a particular housing
such as a display or dispensing means.
SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids, subclass 88
and 237 for dryers combined with display, inspection or
illuminating means.
40, Card, Picture, or Sign Exhibiting, subclass 461 for
cigar lighters combined with a changeable exhibitor.
99, Foods and Beverages: Apparatus, appropriate subclasses
for beverage or food preparation devices with dispensing or
display means.
141, Fluent Material Handling, With Receiver or Receiver
Coacting Means, subclass 82 for fluent material handling
apparatus with material heating or cooling means.
221, Article Dispensing, appropriate subclasses for article
dispensing devices which may be combined with igniting (143 )
or temperature, (subclass 150) control devices such as
cigarette dispensers.
222, Dispensing, appropriate subclasses, especially subclass
146 for dispensing devices combined with heating or cooling
means.
312, Supports: Cabinet Structure, appropriate subclasses,
especially subclass 114 for cabinets of the display case
type which may be combined with heating means, and subclass
236 for cabinets in general with heating means.
Subclass:
215
This subclass is indented under subclass 201. Subject matter
wherein the other art device comprises mechanisms
specifically designed for the manufacture and repair of foot
coverings.
SEE OR SEARCH CLASS:
12, Boot and Shoe Making, appropriate subclasses for shoe
machinery combined with adhesive material heating or melting,
thread warming or wax melting devices.
Subclass:
216
This subclass is indented under subclass 201. Subject matter
wherein the other art device comprises a printing or other
type of reproduction device.
(1) Note. Thermal print heads and similar devices which use
a plurality of heaters to form a character to be printed are
classified in Class 347, subclasses 171+.
SEE OR SEARCH CLASS:
101, Printing, subclass 8, 9, 21, 25, 27, and 31 for
embossing devices utilizing heated dies.
346, Recorders, subclass 76.1 for phenomenal recording using
heat.
347, Incremental Printing of Symbolic Information, 171 for
thermal print head and similar devices which use a plurality
of heaters to form symbolic information.
355, Photocopying, subclass 100 and 106+ for devices for
successively printing portions of a sensitized surface which
may employ heating means.
399, Electrophotography, 328, 330+, and 335+ for devices for
fixing or fusing a toner image surface which use heating
means.
430, Radiation Imagery Chemistry: Process, Composition, or
Product Thereof, subclass 203 for transferring image using
heat; and subclass 336 for heat developing.
Subclass:
217
This subclass is indented under subclass 201. Subject matter
wherein the other art device comprises a chair, seat, bed or
other support means for the human body.
SEE OR SEARCH THIS CLASS, SUBCLASS:
528 for flexible or resilient housing structure adapted for
use with electrical heating devices under the class (219)
definition.
SEE OR SEARCH CLASS:
4, Baths, Closets, Sinks, and Spittoons, 237 for toilet
seats and covers.
5, Beds, subclass 284 for beds with heating or cooling
devices, and subclasses 421+ for heated mattresses.
297, Chairs and Seats, 180.1 for chairs or seats combined
with heat exchange means.
607, Surgery: Light, Thermal, and Electrical Application,
subclass 1 for couches, beds, chairs and seats adapted for
thermal application or therapeutic treatment.
Subclass:
218
This subclass is indented under subclass 201. Subject matter
wherein the other art device comprises an article of
furniture consisting of (1) a smooth flat slab, board or the
like supported on legs or (2) a cabinet type enclosure means
for storage of articles.
SEE OR SEARCH THIS CLASS, SUBCLASS:
213 for heaters associated with buildings, roads, pavements
and the like.
214 for heaters associated with dispensing cabinets.
443 for heating devices combined with a horizontal or planar
heating surface which may be supported on a working counter,
heating cabinet, stove top or other table like surface.
SEE OR SEARCH CLASS:
62, Refrigeration, 275 for electric refrigerator cabinets
with electrically heated defrosters.
108, Horizontally Supported Planar Surfaces, appropriate
subclasses for specific table structure.
312, Supports: Cabinet Structure, appropriate subclasses
especially subclass 236 for cabinet structures with heating,
cooling or heat exchange means.
Subclass:
219
This subclass is indented under subclass 201. Subject matter
wherein the diverse type art device comprises a mirror.
(1) Note. Mirror devices with electrical heating means are
ordinarily classified here, provided that the mirror
structure is claimed broadly or in name only. For heated
mirror structure combined with significant optical features
the search will be in Class 359, Optics: Systems (Including
Communication) and Elements, subclasses 507+.
SEE OR SEARCH CLASS:
376, Induced Nuclear Reactions: Processes, Systems, and
Elements, 100 for plasma heating, laser heating, or electron
or ion beam heating of a material or a plasma to obtain a
nuclear fusion reaction.
Subclass:
220
This subclass is indented under subclass 201. Apparatus
wherein the other art device comprises illumination means,
broadly with significant electrical heating means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
230 for heated-tip hand tool with illumination means.
SEE OR SEARCH CLASS:
250, Radiant Energy, subclass 495.1 for plural radiant
energy sources including heat generator.
313, Electric Lamp and Discharge Devices, subclass 15 for
electric lamp or discharge device with electric heating
means.
362, Illumination, 92 for the combination of specific light
means with other structure which may be a heating device.
Subclass:
221
This subclass is indented under subclass 200. Subject matter
wherein an electrical means heats a tool or instrument which
is not otherwise classified.
(1) Note. Included in this and the indented subclasses are
patents in which the claimed subject matter includes the
combination of a tool or instrument with a stand or support
when the tool or instrument is not a hand held or
manipulative tool or instrument.
SEE OR SEARCH THIS CLASS, SUBCLASS:
201 for electric heaters combined with a diverse type art
device.
SEE OR SEARCH CLASS:
30, Cutlery, subclass 140 for cutting tools with heater.
126, Stoves and Furnaces, 226 for tool heaters of the
nonelectric type and subclasses 401+ for a self-heated tool
utilizing liquid or gaseous fuel.
Subclass:
222
This subclass is indented under subclass 221. Subject matter
wherein the tools or instruments under the definition of ...
are for hair heating, treating or curling purposes, are
formed into systems which utilize a plurality of tools or
instruments for heating, treating or curling the hair with or
without voltage or current control of the system, or wherein
the tools, instruments or the system have manual or automatic
connection and/or disconnection devices.
(1) Note. If in the claim the hair is included in the
electrical circuit of the tool, instrument or the system, or
the hair somehow is held or contained by the tool or
instrument, the claim is properly classified in Class 132,
Toilet. See Class 132, subclass 7 for all hair treating
methods involving the hair on the scalp and subclasses 31+
for crimpers or curlers having crimping jaws, winding forms
or mandrels which include rotating means and hair clamping
jaws.
(2) Note. Included in this subclass are instruments to
produce a vapor which will contact the hair for hair treating
purposes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
156 for means for electrically heating metal rods or bars.
271 for vaporizer means where the vapor is not used
specifically for heat transfer or for hair heating, treating
or curling purposes.
284 for electrolytic liquid heaters where the liquid to be
heated forms part of the electric heating circuit.
520 for housings, casing, and support means for heating
units which include means to hold or support the material to
be heated, flexible casings, housings specially formed or
adapted to fit the material to be heated, and hinged or
separable compartments.
SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, subclass 160
and 504 for brushes with heating means.
30, Cutlery, for hand held cutlery implements for cutting
hair, particularly 195 for hair shears and thinners. See
the notes under subclass 223 of this class.
34, Drying and Gas or Vapor Contact With Solids, subclass
283, for processes for drying human hair while on the head
and subclasses 96+ for apparatus for drying the hair on the
head which includes structure to adapt the apparatus to the
head of a person.
132, Toilet, subclass 7 for methods of treating the hair on
the scalp which includes cutting, softening or straightening
and subclass 118 for heated combs or combs combined with
additional features.
604, Surgery, subclass 23 for applying gas to the body; and
subclass 291 for heating or cooling material applied to or
removed from the skin.
607, Surgery: Light, Thermal, and Electrical Application,
subclass 79 for brushes and combs for thermal applications.
Subclass:
223
This subclass is indented under subclass 222. Subject matter
wherein the structure includes electrical heating means
adapted to contact the hair or to be used with additional
structure to transmit its heat to the hair for the purpose of
hair singing.
(1) Note. Since the singeing instruments could be used for
cutting, a search should also be made in Class 30, Cutlery.
See subclasses 32+ for electrically heated hot wire type hand
held razors for fixed or moving hot wire cutters and subclass
140 for cutters in general combined with heater. A claim to
a hand held apparatus for cutting hair by an electrically
heated wire would be classified in Class 30, Cutlery.
(2) Note. Class 606, Surgery, subclasses 27+, for heat
applying surgical instruments, subclasses 32+, for heated
surgical instruments which include cauterizers for cutting,
sterilizing and coagulation of a wound. These instruments
are structurally similar to those instruments found in this
subclass and those listed in the search class notes of this
subclass.
(3) Note. Class 132, Toilet, subclass 7 will take methods
for cutting or singeing the hair on the scalp but this class
will not take any instruments which are not specifically
adapted for use on the head of a person. See subclass 9 for
hair singers specifically adapted for use on a person's head
and subclass 118 for hair singers combined with combs.
SEE OR SEARCH THIS CLASS, SUBCLASS:
233 236+ or 260+, for similar hand held instruments which
utilize a heated wire or other type of electrically heated
tip to cauterize, mark, burn or ignite material, or to heat
material for soldering purposes. Note the cauterizers in
this class are similar to those found in Class 128.
SEE OR SEARCH CLASS:
26, Textiles: Cloth Finishing, 3 for cloth singers.
28, Textiles: Manufacturing, subclass 174 and 239 for
singeing apparatus for warp and thread.
30, Cutlery, see the (1) Note to this subclass and (4) Note
under the class definitions of Class 30.
56, Harvesters, subclass 229 for an electrically heated hot
wire mower of crops.
83, Cutting, particularly subclass 171 and other appropriate
subclasses for electrically heated nonhand held machine type
cutters of the hot wire type, which include those for making
ice cubes and cutting plastics where there is no shaping or
forming other than that caused by the cutting.
118, Coating Apparatus, subclass 47 for means for burning
off of coating ingredient.
128, Surgery, see the (2) Note to this subclass.
132, Toilet, see the (3) Note to this subclass.
452, Butchering, subclass 73 for hot wire singers for hog or
fowl.
Subclass:
224
This subclass is indented under subclass 222. Subject matter
wherein there are hair heaters of the type which utilize an
electrolyte which when placed in an appropriate electrical
circuit will produce anions and cations, the movements of
these anions and cations cause the heat which is used for
hair heating and/or treating purposes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
271 for vaporizers with the specific use of the vapor other
than heat transfer.
284 for liquid heaters which have the liquid to be heated in
the electrical heating circuit.
360 for convection type fluid heaters with ionizing or
ozonizer means.
SEE OR SEARCH CLASS:
205, Electrolysis: Processes, Compositions Used Therein, and
Methods of Preparing the Compositions, for electrolysis, in
general, which is employed for a purpose other than merely
for heating.
361, Electricity: Electrical Systems and Devices, 500 for
electrolytic devices (capacitors, rectifiers, active
elements, e.g.,) and systems therefor.
Subclass:
225
This subclass is indented under subclass 222. Subject matter
wherein the structure comprises clamping devices which
encompass strands of hair usually wound on winding forms or
mandrels.
(1) Note. Included in this subclass are all patents to hand
held scissors type electrically heated curling irons in which
the claims or specification do not recite that the iron is
used for curling human hair.
SEE OR SEARCH THIS CLASS, SUBCLASS:
524 for housing, casings, or supports comprising hinged or
separable compartments with or without a plurality of heating
unit means not restricted to any special use.
536 for housings, casings, or supports with significant
heating unit mounting or attaching means.
SEE OR SEARCH CLASS:
126, Stoves and Furnaces, subclass 400 for heat accumulator
structures whose material composition is such that it may be
utilized for hair heating clamps.
132, Toilet, subclass 32, 34 and 37 wherein the art includes
structure whereby the hair on the scalp is clamped between
electrically heated members to form the wave, the hair on the
scalp is clamped by a hand held jaw and wound about on the
clamped jaw to form the wave, or the hair is wound on a form
or mandrel, clamped and held in place by an electrically
heated member.
Subclass:
226
This subclass is indented under subclass 222. Subject matter
wherein the structure includes electrically heated casings
which encompass strands of hair usually wound on winding
forms or mandrels.
SEE OR SEARCH THIS CLASS, SUBCLASS:
460 for heaters with means to adjust heating unit to shape
of material heated.
524 for significant housing or casings which comprise hinged
or separable compartments with or without a plurality of
heating units not restricted to any special use.
534 for rigid tubular housings or casings which include an
electrical heating device.
535 for casings or housings specially formed or adapted to
fit the material to be heated.
SEE OR SEARCH CLASS:
132, Toilet, 36 for hair winding forms or mandrels with
surrounding electrical heaters and heat protectors or tubes
and wrappers.
Subclass:
227
This subclass is indented under subclass 221. Subject matter
wherein the tool or instrument includes structure adapted to
manually hold or manipulate the tool or instrument while in
use.
(1) Note. Included in this subclass are branding irons
which have fixed characters or indicia but not those irons
which can be used for other purposes. See subclasses 229+
for these irons. If the claim states the branding unit is in
the form of letters or numerals, classification will be in
Class 101, Printing, appropriate subclass.
(2) Note. Included in this subclass are tools to partially
delaminate the plastic liner or multiple ply glass sheets.
SEE OR SEARCH THIS CLASS, SUBCLASS:
222 for hand held or manipulatable tools or instruments for
heating, treating or curling the hair on the head of a
person.
245 for hand manipulatable tools or instruments involving
the use of pressure such as laundry irons.
346 for transportable radiant type fluid heaters.
386 for portable heater containers with material support.
533 for portable (with handle, e.g.,) heater structures in
general.
SEE OR SEARCH CLASS:
7, Compound Tools, appropriate subclasses for miscellaneous
hand held compound tools which are not classified elsewhere.
15, Brushing, Scrubbing, and General Cleaning, particularly
subclass 160 for brushes which may be electrically heated.
16, Miscellaneous Hardware, 110.1 for handles in general.
26, Textiles: Cloth Finishing, subclass 6 for electrically
heated singeing elements which may be hand held.
28, Textiles: Manufacturing, subclass 174 and 239 for
electrically heated singers for preparing the warp or
finishing thread which may be hand held.
30, Cutlery, particularly 32 and 140 for hand held tools
electrically heated which include heated blade type razors,
cutting shears and hole forming devices where no molding
takes place in the forming of the hole.
69, Leather Manufactures, particularly subclass 20 for hand
held electrically heated wires or blades to remove hair from
hides and tools for combing and glazing fur.
81, Tools, for hand held and bench type electrically heated
wire strippers and appropriate subclasses for nonheated hand
held tools not specifically provided for elsewhere.
83, Cutting, subclass 171 for a cutting tool which is
heated.
101, Printing, 3.1 for hand held electrically heated
instruments that burn, emboss, or penetrate the material to
produce characters or designs and subclass 371 for mail
cancelling stamps.
126, Stoves and Furnaces, 220 for heaters for tools and
subclasses 401+ for a self-heated tool.
138, Pipes and Tubular Conduits, subclass 33 and 35 for
electric heaters which may be hand manipulable for thawing or
preventing the freezing of fluid pipes.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
for methods and apparatus for making laminar material,
particularly subclass 579 for hand manipulative devices
having structure particularly adapted for bonding laminar
material including plastic.
174, Electricity: Conductors and Insulators, subclass 46
for handles in general relating to electrical conduits,
cables, and conductors.
294, Handling: Hand and Hoist-Line Implements, 49 for hand
forks or shovels which may include electrically heated ice
cream scoops or dippers.
401, Coating Implements With Material Supply, 1 for a
hand-manipulated coating implement including means to heat
the coating material (e.g., sealing wax appliers).
416, Fluid Reaction Surfaces (i.e., Impellers), subclass 71
for hand manipulatable impellers which may be electrically
heated.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, subclass 12 for a hand manipulable tool including
a shaping surface disclosed for product repair; subclasses
276+ for a shaping means of the ice cream scoop type; and
subclasses 318+ for a hand manipulable shaping couple.
452, Butchering, subclass 73 for fowl and hog singers which
may be electrically heated and hand held or manipulated.
606, Surgery, 32 for electrical applicators which include
hand held electrically heated needles for cutting and
coagulation which are structurally similar to the
corresponding instruments found in this subclass.
Subclass:
228
This subclass is indented under subclass 227. Subject matter
wherein electrical heating means is contained within or on an
extended housing, casing or support designed to form a hand
manipulative tool or instrument for distributing heat over a
substantial surface area.
(1) Note. This subclass includes, by way of example, means
for heating a substantial area of a painted surface combined
with a scraper for scraping off the heated paint.
SEE OR SEARCH THIS CLASS, SUBCLASS:
245 for hand held pressure application means such as laundry
irons which heat a substantial surface area.
443.1 for an exposed horizontal planar support surface for
material to be heated (e.g., hot plate, etc.).
SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, 235.4 for
mason's trowels and floats and subclasses 236.01 for scrapers
having a blade like edge used for cleaning and which trowels
or scrapers may be electrically heated.
30, Cutlery, subclass 140 for hand held electrically heated
scrapers, and subclasses 169+ for hand held scrapers, per se.
See (1) Note to this class relative to the combination of a
surface heater and a paint scraper.
81, Tools, subclass 3.5 for hand held or work-bench
supported, electrically heated truncated mandrels for
expanding spectacles frames.
Subclass:
229
This subclass is indented under subclass 227. Subject matter
wherein the hand held tools or instruments have electrically
heated tips rather than heated expansive areas forming the
working area of the tool or instrument.
(1) Note. Class 113 will take soldering tips, per se, which
are heated as a result of heat transfer from some heating
means, including electrical, where the tip is not stated as
being in an electrical circuit or a tip of the soldering gun
type.
(2) Note. Hand held electrically heated burning in tools
for filling in dents or scratches in furniture in general are
placed here. However, Class 425, Plastic Article or
Earthenware Shaping or Treating: Apparatus, subclass 12
provides for such tools which will fill or mold to a
predetermined depth or dimension.
(3) Note. The subcombination of a tip and its heater of a
tip-type hand held or manipulated tool or instrument is
classified in the subclass containing the complete tool or
instrument.
SEE OR SEARCH CLASS:
30, Cutlery, subclass 140 for hand held electrically heated
cutting knives including honey uncapping knives and other
sharpened-edge type tools or instruments, including tire
treading and detreading and scrapers for defrosting
windshields.
Subclass:
230
This subclass is indented under subclass 229. Subject matter
wherein cooling, clamping or lighting means is combined with
a hand held or manipulative tool or instrument.
(1) Note. Included in this subclass are adjustable tips and
solder and flux feeding means combined with a hand held
soldering iron which include the tip, solder, and/or flux in
an electrical circuit with the work.
(2) Note. The line between Class 113 and Class 219 for the
combination of an electrically heated, hand held soldering
iron with solder feeding is: Class 113 will take the
combination of solder and/or flux feeding with a hand held
soldering iron when the tip, solder and or flux fed is not
part of an electric circuit completed through the work which
latter combination is provided for in Class 219. See (1)
Note above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
120 129 and 158+, for the cooling of electrodes used in
bonding under pressure, arc heating, electrodes which are
adjustable, and workpiece holders used with the electrical
heating of metal.
220 for a light combined with an electrically heated device
which is not a hand tool or instrument.
421 for an electrically heated container which holds
meltable material, i.e., melting pot.
521 for an electrical heating device combined with a
housing, casing, or support which includes holding or support
means for material to be heated.
531 for the combination of a housing, casing or support and
cooling means with an electrical heating device.
540 for a significant heating unit with heat storage or
transfer means.
SEE OR SEARCH CLASS:
228, Metal Fusion Bonding 212 for processes of soldering,
brazing or welding employing clamps.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
subclass 498 and 538+ for cooling of the work and means to
clamp laminae in assembled relationship.
165, Heat Exchange, appropriate subclasses for the cooling of
heated tools or instruments.
269, Work Holders, appropriate subclasses for the generic
class for structure to hold a workpiece.
313, Electric Lamp and Discharge Devices, 11 and 146+ for
temperature modifying devices and movable electrodes used
with lamp or discharge devices respectively.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 134 for adjustable electrode supports.
362, Illumination, subclass 92 for a portable combination of
a device with an illuminator.
Subclass:
231
This subclass is indented under subclass 229. Subject matter
wherein the tool or instrument is so constructed that the
adjustment, addition, removal or reassembly of one or more
parts to or of the tool or instrument, causes the iron to be
capable of performing some other function.
SEE OR SEARCH THIS CLASS, SUBCLASS:
249 below, for hand manipulable tools or instruments with
pressure application means which are convertible to other
forms or devices capable of performing a different function.
340 for fluid heaters of the radiant type convertible to
another heater or nonheating device.
361 for convection heaters convertible to another type of
heater or nonheating device.
416 for deep well type heaters convertible to another type
of heater.
452.13 for an exposed horizontal planar support surface for
material to be heated (e.g., hot plate, etc.) having a frame,
casing or housing for a heating unit (e.g., range top, stove
top, countertop, etc.) that is convertible.
472 for devices for performing plural functions
simultaneously (e.g., heating and illumination) or
convertible to another type heater or noncoating device.
Subclass:
232
This subclass is indented under subclass 229. Subject matter
wherein the tool or instrument utilizes an electric arc for
the source of heat for the tip of the tool or instrument.
SEE OR SEARCH THIS CLASS, SUBCLASS:
121.11 particularly subclass 129 for arc type heaters where
the arc is drawn between the metal to be heated and an
electrode or the arc is contiguous to the metal rather than
internally of a tool or instrument. See also subclasses 54,
60+ and 69+ where an arc heater is utilized in the heating,
cutting, or disintegration of metals.
383 for electric arc heaters wherein the arc influences or
passes through nonmetallic material to be heated.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, appropriate
subclasses for space discharge devices, per se.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses for arc lamp, per se, of
the consumable electrode type.
315, Electric Lamp and Discharge Devices: Systems,
appropriate subclasses for systems for supplying electrical
energy to discharge apparatus. See the Class 315 "Search
Class" note to Class 219 for the line between Class 219 and
Class 315.
Subclass:
233
This subclass is indented under subclass 229. Subject matter
wherein the heated tip is in an electrical circuit and the
tip itself or the tip and a highly resistive element part of
the same circuit form the electrical heater of the tool or
instrument.
(1) Note. Included herein is the subcombination of the hand
held or manipulative tool or instrument which is the "gun"
type tip, per se, with or without electrical terminals which
is also the electrical heater of the tool or instrument.
(2) Note. The patents in this and the indented subclasses
may use a granular, solid, loop or coiled wire type heater.
Where the novelty resides in this type of heater, a search
must be made in the appropriate subclasses of this class.
(3) Note. Cloth markers utilizing tip heaters which are
part of the electrical circuit will be placed in this group
of subclasses.
(4) Note. Included in this group of subclasses are needles,
caponizers, cauterizing, coagulating, and cutting instruments
of the same type found in the appropriate subclasses of Class
606, Surgery, subclasses 32+ for example.
SEE OR SEARCH THIS CLASS, SUBCLASS:
129 for electrodes which are in the circuit for soldering or
brazing purposes but use an arc heater rather than resistance
heating of the tip and/or some high resistance material in
the tool or instrument itself.
SEE OR SEARCH CLASS:
30, Cutlery, subclass 140 for hand held electrically heated
wires used as cutters which go beyond mere heating of the
material such as the forming of ice cubes from a block of
ice, dairy products cutters, and hot wire type razors.
56, Harvesters, subclass 229 for a hand held electrically
heated hot wire mower.
83, Cutting, for machine type cutters employing hot wire
cutters and the cutting of plastic material where no molding
or shaping takes place in addition to the cutting.
175, Boring or Penetrating the Earth, subclass 16 for hot
wire cutting of natural ice formations.
606, Surgery, see (4) Note to this subclass.
Subclass:
234
This subclass is indented under subclass 233. Subject matter
wherein the tip is composed of one or more electrodes which
comprise the heater, per se, or the heater may be formed of
one or more highly resistive elements contiguous to or
adjacent the tip which heater completes its electrical
circuit through means, usually the work, not part of the tool
or instrument and its electrical circuitry to its power
source.
(1) Note. If the claimed combination includes the solder or
brazing material in addition to the hand tool or instrument
the patent should be placed in subclass 230 and cross
referenced in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
137.2 for metal heating apparatus for producing a heating
arc between the work and an electrode.
230 for clamping means combined with a heated tip tool where
the clamping means is not part of the heating circuit.
284 for heaters wherein the liquid heated is in the
electrical circuit.
SEE OR SEARCH CLASS:
65, Glass Manufacturing, subclass 40 and 135.6+ for
processes of heating glass by passing an electric current
therethrough; subclass 511 for means to heat a fiber or
filament utilizing electric or electromagnetic heat.
81, Tools, subclass 9.22 for an implement with electrical
circuitry to simultaneously mark on and perforate the surface
(e.g., pen, tattooing device).
148, Metal Treatment, particularly subclass 520, 525, and 565
for processes of significant heat treatment of metal to
modify or maintain the internal physical structure (i.e.,
microstructure) or chemical property of metal wherein
electrical heating is utilized. See the Class Definition of
Class 148 to determine what constitutes significant heat
treatment.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
subclass 275 for methods of surface bonding wherein the work
constitutes a conductor in an electrical circuit.
373, Industrial Electric Heating Furnaces, 120 for furnaces
wherein the charge may be in circuit.
Subclass:
235
This subclass is indented under subclass 233. Subject matter
wherein the electrical circuitry includes a transformer whose
secondary usually is in circuit with the tip.
(1) Note. Hand manipulative tools such as soldering
brazing, burning, writing and surgical tools or instruments,
which utilize inductive electrostatic or electromagnetic
means to heat these tools, are excluded from subclasses 6.5+
of Class 219.
SEE OR SEARCH THIS CLASS, SUBCLASS:
234 for the tip and work coupled to a transformer forming
part of the power supply.
240 for significant power supplies or voltage or current
controls which may include a transformer in its circuitry.
618 for closed transformer secondaries with or without a
high resistive element in the circuit forming a heat exchange
arrangement with the material to be heated.
SEE OR SEARCH CLASS:
30, Cutlery, subclass 140 for heated cutting blades which
could utilize a soldering "gun" type heating means.
Subclass:
236
This subclass is indented under subclass 229. Subject matter
wherein the electrical heater of the hand held tool or
instrument comprises a coiled or looped wire resistance
heater.
(1) Note. Included in this subclass are plural heating
elements forming a heating unit which includes a switching
arrangement to control the current to the heating unit or
heating elements of diverse resistance characteristics and
which automatically controls the current through the heating
elements.
(2) Note. Included herein is the subcombination of a hand
held electrically heated tool or instrument which includes
the heating unit and the tip but not the heating unit, per
se, or the tip, per se.
SEE OR SEARCH THIS CLASS, SUBCLASS:
222 for hair treating, heating or curling instruments which
are hand manipulatable and which utilize coil or loop type
heating means in a similar manner.
254 for sole plate pressure application means which may use
coil or loop type heating means.
520 for significant housing casing or support means,
particularly subclass 530 for a heating unit which includes
heat storage or transfer means.
538 for significant heating unit structure, particularly
subclass 540 which includes heat storage or transfer means.
552 for heating elements, per se.
SEE OR SEARCH CLASS:
338, Electrical Resistors, appropriate subclasses for a
resistor which is not stated as being an electrical heater.
Subclass:
237
This subclass is indented under subclass 236. Subject matter
wherein the tool or instrument comprises a subcombination of
elements which comprise an integral heater and tip or a
heater plus tip unit, significantly adapted for use with the
tool or instrument.
SEE OR SEARCH THIS CLASS, SUBCLASS:
544 for heating unit structure wherein the heating elements
are embedded within or completely surrounded by a core,
sheath, or support means.
Subclass:
238
This subclass is indented under subclass 236. Subject matter
wherein means are provided for enabling the tip and the
heater to be readily attached to or separated from each
other.
SEE OR SEARCH CLASS:
279, Chucks or Sockets, for means for making a readily
releasable connection between a holder and a body.
285, Pipe Joints or Couplings, appropriate subclasses, for
pipe joint type couplings in general.
403, Joints and Connections, appropriate subclasses for
joints and connections in general.
Subclass:
239
This subclass is indented under subclass 238. Subject matter
wherein the means for effecting the separation or attachment
of the tip and heater unit comprises a threaded connection.
Subclass:
240
This subclass is indented under subclass 227. Subject matter
wherein the structure includes details of means to supply
current to the electrical heating means of the tool or
instrument, or voltage or current control means responsive to
the condition within or externally of the tool or instrument,
or connection and/or disconnection means in the electrical
circuit of the heating means of the tool or instruments.
SEE OR SEARCH THIS CLASS, SUBCLASS:
108 for systems of current supply for resistance welding
apparatus.
130.1 for systems of current supply for arc welding
apparatus.
222 for systems utilizing hair treating, heating and/or
curling which include power supplies, current or voltage
control and connection and/or disconnection means.
250 for significant power supplies and voltage or current
control means used with hand held sole plate type pressure
application means.
482 for power supplies, voltage or current regulation or
control means not associated with any particular type of
electrically heated tool, instrument or device.
507 for significant current connection and/or disconnection
means not associated with any particular type of electrically
heated tool or instrument or device set forth in this class.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 51 for the
combination of a Class 439 quick make and break connector
with or acting as a Class 200 circuit maker and breaker in an
integral unit, subclasses 332.1+ for mechanical quick make
and break switches including those mounted on handles.
218, High-Voltage Switches With Arc Preventing or
Extinguishing Devices, 1 for arc preventing and
extinguishing combined with switches.
307, Electrical Transmission or Interconnection Systems,
appropriate subclasses for plural supply and/or plural load
circuits for controlling the current or load circuits.
323, Electricity: Power Supply or Regulation Systems,
appropriate subclasses for current or load regulation,
transformer, impedance and phase control systems involving a
single source of power and a solitary load device where no
particular art devices are involved.
361, Electricity: Electrical Systems and Devices, 139 for
electromagnetic device control circuit.
Subclass:
241
This subclass is indented under subclass 240. Subject matter
including thermally expansible bars, bimetallic elements,
expansible fluids, thermomagnetic elements, thermocouples or
other thermal devices which are responsive to the temperature
of the tool or instrument to control the voltage or current
to the electrical heating means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
251 for thermally responsive current control means for
heaters used in sole plate type pressure application means.
494 for thermally responsible voltage or current regulation
or control systems which are more complex or comprehensive
than a thermally operated switch, per se.
510 for thermally responsive switches which include
expansible solids, fluids and fusible elements.
SEE OR SEARCH CLASS:
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses for thermal current actuated
or thermally responsive switches of the same type found in
Class 219, 510 but not in combination with an electric
heating load.
Subclass:
242
This subclass is indented under subclass 227. Subject matter
including support means for hand held electrically heated
metallic tip type tools or instruments and which means are
more than mere stands or brackets and which include
electrical circuitry to transmit and/or control the
electrical energy supplied to electrical heating means on the
support and/or the tool or instrument and which support may
include heat exchange means to the tool or instrument.
(1) Note. Included in this subclass are electrically heated
supports with or without current control for heating hand
held or manipulative tools or instruments which include
curling irons and clamps which do not have a self-contained
heater and supports including electrical circuitry for
transmitting power to self-contained heater type hand held or
manipulative tools or instruments not otherwise provided
for.
SEE OR SEARCH THIS CLASS, SUBCLASS:
246 for stands for hand held flatirons or the like with
electrical circuitry.
259 for supporting devices for electric flatirons, for
example.
267 for support for electrical igniters.
429 for electrically heated vessels and stands therefor.
SEE OR SEARCH CLASS:
165, Heat Exchange, 80.1 for retainers for removable
articles where a heat exchange is involved.
248, Supports, appropriate subclasses for supports for hand
held or manipulable tools or instruments where a stand or
support does no more than support the tool or instrument.
See particularly 51, 127+, 511+.
Subclass:
243
This subclass is indented under subclass 200. Apparatus
including heating devices combined with pressure application
means cooperating with the heating device in such a manner
that pressure is applied to an object to be heated
simultaneously with the heating operation and such apparatus
not being provided for in another art class.
SEE OR SEARCH CLASS:
8, Bleaching and Dyeing; Fluid Treatment and Chemical
Modification of Textiles and Fibers, 137 for general laundry
processes which may include ironing.
12, Boot and Shoe Making, subclass 57.1 for shoe making
machinery involving the upper part of the shoe where a seam
is turned and the seam is pressed by any type of structure.
38, Textiles: Ironing or Smoothing, for the generic class
for devices and processes for producing a smooth appearance
on a surface of a textile article or fabric, particularly 1
for smoothing machines including platen pressers under
subclasses 17+ and roller pressers under subclasses 44+,
subclass 99 for stationary nonplanar pressing surfaces
including electrically heated pressing irons, subclass 100
for smoothing implements consisting of a roller or rollers,
subclasses 103+ for ironing tables including electric heaters
and vaporizers, subclass 141 for miscellaneous devices
necessary to ironing and subclass 144 for processes relating
to the smoothing and ironing of fabrics not otherwise
provided for.
53, Package Making, appropriate subclasses for package making
apparatus which may utilize physical pressure and electric
heating simultaneously.
69, Leather Manufacturers, particularly subclass 7 for seam
pressing machines for leather goods, subclass 27 for fur
smoothing and subclasses 37 to 48 which may include a surface
to iron or smooth the leather goods.
72, Metal Deforming, 200 for a method or apparatus for
heating or cooling metal in conjunction with deforming it
between rollers.
100, Presses, for the generic class for apparatus for
subjecting material to compressive force by causing solid
surfaces to approach one another while the material is
between them, particularly 92 for presses combined with
heating, cooling or drying means.
126, Stoves and Furnaces, particularly 227 for nonelectrical
stoves or furnaces and attachments for the stoves or furnaces
specially designed for heating of sadirons and subclass 230
for the heating of sadirons by nonelectrical stoves or
furnaces using gaseous or liquid fuel.
131, Tobacco, 315 and 324+ for tobacco treatment including
the smoothing of tobacco leaves by pressing with stemming and
booking which could include heating of the leaves for the
purpose of smoothing.
144, Woodworking, 254 for heating of wood and bending it to
conform to a desired shape which may utilize electrically
heated means.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
subclass 499 for separate nonpress heating means for work,
subclass 579 for handle or hand grip heated tools for heat
bonding laminar plastic sheet, subclass 580 for presses which
include heated presses not of general application specific to
the forming of laminar material.
223, Apparel Apparatus, 35 which includes combined sad and
fluting irons and hand irons housing teeth intermeshing with
a bed and subclasses 52+ for collar, cuff and neckband
ironers.
Subclass:
244
This subclass is indented under subclass 243. Subject matter
wherein the pressure application means comprises rotatable
cylinder or other means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
388 for the combination of an electrically heated container
for enclosure with a conveyor which may be of the roller type
to transport material through the enclosure.
469 for the combination of an electrically heated roller
whereby material may be heated while passing over or around
the roller or roller means.
SEE OR SEARCH CLASS:
38, Textiles: Ironing or Smoothing, 44 for ironing machines
including one or more rollers associated with heat for the
purpose of pressing textile fabrics, subclass 76 for a roller
pressing element combined with a hand held flatiron, and
subclasses 100+ for hand held smoothing elements consisting
of a roller or rollers for the purpose of ironing.
100, Presses, for the generic class for apparatus for the
subjecting of material to compressive force by causing solid
surfaces to approach each other while the material is between
them. 92 includes the heating of material in addition to
pressing the material and subclasses 155+ where rolls are
used for the concurrent pressing and conveying of the
material where the rolls may be heated.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
583.1 heated presses or press platens which could involve a
heated roll for presses which are not of general utility or
are combined with means to assemble or bring workpieces into
association with each other.
241, Solid Material Comminution or Disintegration, subclass
23 and 65+ for processes and apparatus which may include a
heated roll or rolls.
492, Roll or Roller, for a roll, per se, not elsewhere
provided for, and see the notes thereunder.
Subclass:
245
This subclass is indented under subclass 243. Subject matter
wherein the structure comprises pressure application means
consisting of a manually held sole plate which generally
includes hand held laundry irons.
(1) Note. Irons electrically heated by induction,
electrostatics, radiation including infrared, the flow of
anions and cations in a conducting medium such as impure
water are classified herein.
(2) Note. Hand held irons of the electrostatic and
electromagnetic type will be found herein (subclasses 245+)
rather than in subclasses 6.5-10.73 supra.
(3) Note. The line between Class 38, Textiles: Ironing or
Smoothing and Class 219 Electric Heating with regard to
machine and hand held smoothing implements is: A claim
including details of the pressure application means or
smoothing surface with a detailed or in name only electrical
heating means shall be classified in Class 38. A claim
including a broad smoothing surface and a detailed electrical
heating unit shall be classified in Class 219. A claim which
includes a nondetailed heating unit and a nondetailed
smoothing surface shall be classified in Class 38.
(4) Note. Claims dealing with safety features such as means
to have the soleplate assume a raised position off the
ironing surface when not in use, means to increase the
ironing pressure of the soleplate, sole surfaces, travel
irons and attachments for flatirons shall be classified in
Class 38 rather than Class 219.
SEE OR SEARCH THIS CLASS, SUBCLASS:
227 for electrically heated hand manipulative tools or
instruments where the heated surfaces do not involve pressure
application in addition to heat transfer to the material
being treated. See subclass 228 for heat applied to
extensive areas by radiation, and subclasses 229+ for heat
applied to localized areas.
443.1 for an exposed horizontal planar support surface for
material to be heated (e.g., hot plate, etc.).
SEE OR SEARCH CLASS:
38, Textiles: Ironing or Smoothing, 74 for hand held heated
flatirons including electrically heated flatirons combined
with structure for performing some other function in
subclasses 75+, including a roller in the plane of the
pressing surface, all electrically heated steam irons in
subclasses 77.1+, subclass 82 for means including electricity
for heating a flatiron internally, subclasses 88+ for
structure relating to the general shape or form of materials
which form the flatiron including heat insulation to hinder
radiation of heat from the body of the iron, subclass 90 for
handle structure of a flatiron, subclass 93 for the structure
of the plate which forms the ironing surface, subclass 94 for
attachments for flatirons not otherwise provided for and
subclasses 100+ for smoothing implements consisting of a
roller or rollers. See also (3) Note and (4) Note above for
the line between Class 38 and Class 219.
126, Stoves and Furnaces, 227 for stoves or furnaces
designed to be used alone or in connection with a flatiron
structure and subclasses 411+ for a hand held flatiron that
utilizes a liquid or gaseous fuel burner integral with the
iron.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
subclass 579 for hand held or manipulative electrically
heated bonding tools or instruments which are specifically
devices for use in the adhesive bonding of material.
223, Apparel Apparatus, 21 for machines and hand irons for
making and ironing hats, subclasses 35+ for hand held fluting
irons including combined sad and fluting irons, and
subclasses 52+ for special ironers for collars, cuffs,
neckbands and edge irons for those items which may be hand
held and electrically heated.
Subclass:
246
This subclass is indented under subclass 245. Subject matter
including stand means combined with electrically heated irons
of the soleplate type where the stand may or may not include
electrical circuitry connecting an electrical power source,
directly or indirectly, such as by induction, to the iron, or
the stand has cam means including thermal means cooperating
with electrical circuitry such as switches and disconnect
devices in the heater circuit of the iron.
(1) Note. Included in the circuitry may be indicators,
electrical switches and disconnect devices or any means which
may control or convey directly or indirectly the electrical
current to the iron from the power source.
(2) Note. The devices to be found here generally include
means whereby the external electrical circuit terminates in
the iron itself.
(3) Note. See subclass 259 for the same stands or
supporting devices claimed alone rather than in combination
with a hand held electrically heated iron.
SEE OR SEARCH THIS CLASS, SUBCLASS:
222 for the combination of a self-heated hair heating means
combined with a support or stand which forms part of the
electrical power supply to the heating means.
231 for the combination of an electrically heated tip type
hand tool or instrument with stands which are more than a
mere support for a hand held tool and generally would include
electrical circuitry in circuit with the iron.
242 for supports or stands, per se, for hand held or
manipulative tools or instruments which have integral
electrical heaters or for hand manipulative or hand held
tools or instruments which are heated by heat transfer on and
from electrically heated stands.
SEE OR SEARCH CLASS:
38, Textiles: Ironing or Smoothing, subclass 79 for
supports which are formed integral with the flat irons,
subclass 97 for a support for the flatiron in the form of an
attachment, and subclass 107 for the combination of a flat
iron with an ironing table.
223, Apparel Apparatus, subclass 120 for supports, bases and
stands claimed in connection with apparatus of this class.
248, Supports, 51 for supports for a pipe or cable which
support a conductor chord or tube of an electrically or gas
energized tool and hold the conductor chord or tube away from
the work and subclasses 117.1+ for supports for a sadiron
which include stands, clamps, or hold-down means.
312, Supports: Cabinet Structure, for supports in the form
of cabinets or enclosures, and particularly subclass 242 for
such structures mounted in an aperture or recess in a wall,
floor, ceiling or panel and subclass 245 for such structures
having mounting means associated with a wall, ceiling,
vertical panel, underside of a horizontal panel, or a pair of
spaced vertical panels.
Subclass:
247
This subclass is indented under subclass 246. Subject matter
wherein the stand and iron each have contiguous complementary
electrical circuit connections or the iron has a
complementary contiguous electrical connector which connector
forms a direct or contiguous complementary circuit connection
with the electrical connection on the stand.
(1) Note. The devices found here include means whereby the
external electrical circuit terminates in the stand rather
than the iron itself as found in subclass 246 above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
541 for heater unit, per se, with terminal or connector.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, particularly
51 for the combination of a Class 439 connection device and
an electrical switch or disconnection device where the
combination is an integral unit.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses especially 113, 187+ and 380
for thermal current or thermally actuated switches with a
Class 439 connector coupling.
439, Electrical Connectors, subclass 45 for quick make and
break connections with plug ejecting or coupling separating
means, subclass 147 for quick make and break connectors
combined with other art devices where the combination is more
than in name only, and sockets, receptacles and plugs, per
se, in subclasses 176+.
Subclass:
248
This subclass is indented under subclass 245. Subject matter
and which includes electrical, audible, visual or mechanical
type indicator means which is responsive to some internal
condition of the iron.
(1) Note. A scale associated with an adjustable member to
control the position at which a thermally actuated switch
operator will operate its switch contacts or on-off, high-low
switch position indicia is considered to be a setting
position marker rather than a qualitative or quantitative
indicator for this subclass.
(2) Note. A thermometer combined with the electrical heater
to show the temperature of the iron is considered to be a
perfecting feature of the iron rather than a separate art
device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
109 for a current supply indicator (e.g., a recorder, etc.)
to a pressure bonding (e.g., resistance welding, etc.) metal
heating (e.g., resistance heating, etc.) apparatus.
445.1 for an exposed horizontal planar support surface for
material to be heated (e.g., hot plate, etc.) with an
indicator.
487 for indicator means for a power supply, voltage or
current regulation or control means for controlling or
regulating plural separate distinct resistance elements
selectively and/or alternately.
506 for signal or indicating means for automatic power
supply, voltage or current regulation or control means, for
heating means in general under the class definition.
SEE OR SEARCH CLASS:
116, Signals and Indicators, 200 for nonelectric signals and
indicators, particularly subclasses 327+ for pointers and
indicator arms, and subclasses 101+ and 216+ for
thermostatically operated signals or signals giving only a
qualitative indication of temperature.
200, Electricity: Circuit Makers and Breakers, subclass 56
for circuit controllers arranged to cooperate with a pointer
of an indicating instrument or for a common operator for a
pointer and the circuit controller.
236, Automatic Temperature and Humidity Regulation,
particularly subclass 94 for thermostatically controlled
devices combined with temperature indicating means.
250, Radiant Energy, 338.1 for methods and apparatus
including invisible energy responsive electric signalling
devices for detecting and measuring infrared radiation.
324, Electricity: Measuring and Testing, for measuring
qualitatively and quantitatively electrical conditions and
nonelectric properties in terms of electrical properties.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses especially subclass 79, 206,
241+, 265, 332, 376, and 417 for particular types of
electrothermal and thermally actuated switches with condition
indicating means.
340, Communications: Electrical, 384.1 for an audible
signaling device, subclasses 577+ for flame condition
responsive system, subclasses 584+ for a thermal condition
responsive system, subclass 600 for radiant energy condition
responsive system, subclasses 635+ for electrical apparatus
condition responsive system, especially subclass 640 for a
heater element condition responsive system, subclass 655 for
a condition responsive system indicating heating circuit
energization, or subclasses 815.4+ for visual indication
systems.
374, Thermal Measuring and Testing, subclass 141 for a
nominally claimed iron combined with a thermometer.
439, Electrical Connectors, subclass 113 for quick make and
break connectors associated with means providing an
indication of a condition, nature or position of an
indicator.
Subclass:
249
This subclass is indented under subclass 245. Subject matter
including means by which the adjustment, addition, removal,
or reassembly of one or more parts to or of the hand held,
pressure application means causes the pressure application
means to be capable of performing some other function other
than heating and pressing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
231 for hand held, heated tip devices convertible to another
structural arrangement to perform a different function.
340 for radiant heaters convertible to a nonheating device
or to a different type heater.
361 for convection type fluid heaters convertible to another
type heater or to a nonheater.
416 for deep well heaters convertible to another type of
heater.
452.13 for an exposed horizontal planar support surface for
material to be heated (e.g., hot plate, etc.) having a frame,
casing, or housing for a heating unit (e.g., range top, stove
top, countertop, etc.) that is convertible.
472 for electric heaters in general convertible to another
type heater or to nonheaters.
SEE OR SEARCH CLASS:
38, Textiles: Ironing or Smoothing, 75 for flatirons
combined with other structures for performing some other
function than ironing.
Subclass:
250
This subclass is indented under subclass 245. Subject matter
including detailed means either self-contained or external of
the sole plate pressure application means whereby power is
supplied to the electrical heating unit of the iron, means to
effect voltage or current control, or current regulation
means responsive to conditions within or externally of the
iron.
SEE OR SEARCH THIS CLASS, SUBCLASS:
222 for power supplies and voltage or current control or
regulation means which are utilized with hair treating or
heating instruments or systems utilizing such instruments.
240 for significant power supply voltage or current control
or connections and/or disconnection means for hand
manipulative tools or instruments.
482 for power supplies, voltage or current regulation or
control means which include manual or automatic control for
heating devices combined with enclosure, container or
support.
507 for significant current connection and disconnection
means combined with electrical heating devices in general.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 51 for the
combination of a Class 439 connector with a switch integrally
formed, subclass 61.85 for switches associated with
manipulating, operating or carrying handles, and subclasses
144+ for arc preventing and extinguishing means for circuit
makers and breakers.
307, Electrical Transmission or Interconnection Systems, 112
for switching systems not claimed with any particular art
device and subclasses 149+ for miscellaneous systems
including power packs and conversion systems.
320, Electricity: Battery or Capacitor Charging or
Discharging appropriate subclass for a method or apparatus to
charge a battery used in a portable power system.
323, Electricity: Power Supply or Regulation Systems,
appropriate subclasses for current or voltage regulation
systems including impedance systems when the regulation or
control is not claimed with a specific art device.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, 530 for miscellaneous circuits with
specific source of supply or bias voltage.
361, Electricity: Electrical Systems and Devices, 139 for
control circuits for relays and electromagnets when they are
not claimed with any particular art device.
363, Electric Power Conversion Systems, for systems involving
the conversion of direct current to alternating current
and/or alternating current to direct current.
Subclass:
251
This subclass is indented under subclass 250. Subject matter
including at least one thermal operator with means for
controlling a connection and/or disconnection means, or the
voltage or current, in an electrical circuit to the heating
unit or units of an iron.
SEE OR SEARCH THIS CLASS, SUBCLASS:
222 for electrical hair heating or treating instruments or
systems utilizing these instruments which could utilize
thermal control of the individual heaters or of the system.
241 for thermal control means of electrically heated hand
manipulative tools or instruments.
494 for a thermally controlled power supply, or voltage or
current regulation or control means of electrical heating
means in general where more than a thermal switch or
disconnect device is utilized.
510 for thermally responsive current connection and/or
disconnection means for electrical heating devices in
general.
SEE OR SEARCH CLASS:
116, Signals and Indicators, 101 and 216+ for qualitative
thermostatically operated, mechanically actuated signals or
indicators.
200, Electricity: Circuit Makers and Breakers, subclass 56
for switches of special application and having indicating
means and subclass 167 for indicators, per se.
236, Automatic Temperature and Humidity Regulation,
particularly subclass 7 for thermally motivated operators
combined with pressure application surfaces of sadirons.
307, Electrical Transmission or Interconnection Systems,
subclass 117 for thermally responsive electrical switching
systems.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses for thermally actuated
switches adapted to control the connection or disconnection
of an electrical circuit to the heating unit of an iron.
361, Electricity: Electrical Systems and Devices, 161 for
relay operating circuits which are thermally responsive.
374, Thermal Measuring and Testing, subclass 141 for a
nominally claimed iron combined with a thermometer.
Subclass:
252
This subclass is indented under subclass 251. Subject matter
including a thermal responsive means, usually a bimetallic
device, having means whereby the predetermined temperature at
which it operates may be adjusted or preset by an operator.
SEE OR SEARCH THIS CLASS, SUBCLASS:
515 for adjustable thermally responsive switches for
controlling an electrical heating means.
SEE OR SEARCH CLASS:
38, Textiles: Ironing or Smoothing, subclass 77.7 for
electrically heated hand held steam irons which generally
have an adjustable thermal control for the heating element,
and subclasses 82+ for hand held laundry irons which have
claimed detailed sole plate structure and detailed or in name
only electrical heating means combined with an adjustable
thermally controlled switch to control the electrical heating
means.
223, Apparel Apparatus, appropriate subclasses for irons
which may have adjustable, thermally controlled electrically
heated units.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 141 for electrothermally actuated
switches which may be adjustable and subclasses 298+ for
thermally actuated switches with adjusting means.
Subclass:
253
This subclass is indented under subclass 251. Subject matter
wherein the thermal responsive means comprises a fusible
solid, an expansible liquid, or expansible bar.
SEE OR SEARCH THIS CLASS, SUBCLASS:
512 for current connection and/or disconnection means for
electric heaters which have thermally responsive linear
expansible metal operators for the connection and/or
disconnection means.
513 for current connection and/or disconnection means for
electric heaters which have a thermally responsive expansible
fluid operator for the connection and/or disconnection
means.
517 for current connection and/or disconnection means for
electric heaters which are thermally responsive fusible
links.
SEE OR SEARCH CLASS:
236, Automatic Temperature and Humidity Regulation, 99 and
101+ for thermally responsive solid or fluid elements which
act as operators to perform some regulatory act.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses for electrothermally or
thermally actuated switches with actuating means comprising
an expansible, liquid or bar or a fusible, combustible or
explosive means.
374, Thermal Measuring and Testing, subclass 106 and 160 for
measuring the temperature by means of fusible elements,
subclasses 187+ for expanding solid type elements responsive
to heat for measuring quantitatively the temperature, and
subclasses 201+ for devices which measure the temperature as
a function of the contraction or expansion of a confined
fluid.
Subclass:
254
This subclass is indented under subclass 245. Subject matter
including significant details of the heating unit structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
520 for an electrical heating unit structure in general
combined with a significant housing, casing or support
means.
538 for significant heating unit structure, per se.
SEE OR SEARCH CLASS:
38, Textiles: Ironing and Smoothing, 82 for means to heat
the flatiron including electrical means, hot solid and fluid
substances and solid fuels.
223, Apparel Apparatus, subclass 21, 36 and 52.5+ for irons
which may have detailed electrical heating units alone or
combined with apparel making apparatus.
338, Electrical Resistors, appropriate subclasses for
electrical resistors, per se.
Subclass:
255
This subclass is indented under subclass 254. Subject matter
wherein the heating unit structure comprises at least two or
more separate heating units. The separate units may be
adapted to operate singly or simultaneously, either in series
or parallel arrangement, by way of example.
SEE OR SEARCH THIS CLASS, SUBCLASS:
476 for plural heating devices, particularly subclass 478
for unitary housings, support or casing means and subclass
480 for selectively activated plural heating devices,
483 for the regulation or control of plural resistance
elements including subclass 486 for selectively and/or
alternatively activated plural resistance elements.
520 for significant housings, casings, or support means
particularly subclass 537 for plural heating units combined
with significant mounting means on a single support, housings
or casing,
539 for plural resistive elements forming significant
heating unit structure and
552 for heating elements having plural sections.
Subclass:
256
This subclass is indented under subclass 245. Subject matter
including significant details of the terminal block,
electrical connections within or on the hand held pressure
application means, or connection and/or disconnection devices
whereby the heating means may be electrically connected to or
disconnected from an external source of power.
SEE OR SEARCH THIS CLASS, SUBCLASS:
240 for hand held, heated tip type tools or instruments
combined with connection and/or disconnection devices.
507 for significant current connection and/or disconnection
devices combined with electrical heating means in general.
541 for heater unit, per se, with terminal or connector
means.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, particularly
subclass 46 for handles which are associated with conductors
or insulators of electricity, and subclasses 84+ for
conductor joints which are not of the quick make and break
type found in Class 439.
200, Electricity: Circuit Makers and Breakers, 51 for a
Class 439 connection and/or disconnection device with an
integral Class 200 switch or a Class 439 connector acting as
a switch, and the appropriate subclasses for the various
types of switches including subclass 152 for liquid contact
switches, subclass 332.2 for handgrip type switches, and
subclass 520 for pushbutton switches.
307, Electrical Transmission or Interconnection Systems, 139
for switching systems having means for actuating a switch.
361, Electricity: Electrical Systems and Devices, 139 for
electrical circuits for relays and electromagnets.
439, Electrical Connectors, 6 for conducting joints for
relatively movable conductor parts combined with a connector,
subclass 58 for electrical tool or appliance handle mounted
quick make and break connections, subclasses 75+ for locking
means for coupled connectors, subclass 101 for flexible or
pivoted guards or supports for the line cord or conductor
combined with a quick make and break connection, subclasses
103+ for strain relieving means for a conductor attached to a
terminal joint, subclass 108 for connectors combined with a
detachable part or having a portion specifically shaped to
facilitate the handling of the connector, subclasses 119+ for
mounting or supporting means for a complete coupling or a
coupling part, and subclasses 176+ for quick make and break
sockets, receptacles, and plugs.
Subclass:
257
This subclass is indented under subclass 256. Subject matter
including means whereby the completion or interruption of an
electric current to an external source of current at the
beginning or end of the use of the iron is accomplished
automatically.
(1) Note. The term "automatic" is construed to include the
operation of a switch in the circuit of the electrical
heating means by a switch operator which is motivated by the
grasping of the handle and the guiding of the soleplate type
iron in the normal manner of using the iron.
(2) Note. The line between Class 200, Electricity: Circuit
Makers and Breakers and this class is: where an electric
iron is claimed by name only with no inclusion of a specific
electric heater and just enough structure of the iron to
support the switch, the patent shall be classified in Class
200, appropriate subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
250 for voltage or current control means for the iron
responsive to variations in the voltage or current delivered
to the heating means or thermal conditions of the iron which
may involve connection and/or disconnection of the heater
from a source while in use.
489 for combined manual and automatic regulating or control
means for the current to an electric heater in general.
490 for automatic control means of the voltage or current to
an electrical heater in general.
509 for automatically operated switches for connecting
and/or disconnecting electrical heating means in general from
a power supply.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses for condition operated switch structures,
particularly subclass 61.42 for a switch operator responsive
to impingement against an object or motion of a feeler
support, subclasses 61.45+ for switch closures responsive to
the motion of or the change of inclination of an object
including conducting fluid and tilt responsive switches, and
subclass 61.85 for switches operable by the volitional use of
guiding, lifting or actuating members used in the normal or
intended manner.
Subclass:
258
This subclass is indented under subclass 245. Subject matter
including significant means whereby heat energy is stored for
transmission at a later time, or is transmitted to a sole
plate by conduction or reflection.
SEE OR SEARCH THIS CLASS, SUBCLASS:
347 for radiant type fluid heaters with reflector means.
405 for oven type devices with heat energy directing or
reflecting means.
461 for planar type heaters with heat energy reflecting or
directing means.
530 for the combination of an electrical heating unit
combined with housing, casing, or support structure in
general and which includes means whereby heat energy is
stored or is transmitted to a material or object to be
heated. For a list of other electric heaters in this class
provided with heat exchange or storage means consult "Search
This Class, Subclass" under subclass 530.
540 for the combination of an electric heating unit
structure in general and significant heat transfer or storage
means.
SEE OR SEARCH CLASS:
38, Textiles: Ironing or Smoothing, subclass 89 for
structure to heat insulate the body of the iron to hinder the
radiation of heat from the soleplate and storage means of the
iron to the nonworking surfaces of the iron such as the
handle.
165, Heat Exchange, appropriate subclasses for heating and
cooling systems with the heat generator and heat transfer
structure when claimed without the means forming the heat
source.
Subclass:
259
This subclass is indented under subclass 245. Subject matter
including significant details of a stand or support apparatus
which, while not comprising a complete iron, nevertheless is
so specifically adapted for use with an iron as to be
peculiar to the art classifiable in this class.
(1) Note. Included in this subclass are structures which
are more than mere stands or supports for hand held or
manipulative sole plate type pressure application means and
include electrical circuitry which includes electric
switches, thermal and otherwise, disconnection devices of the
Class 439 type and indicators alone or in combination, to
connect the pressure application means to a suitable power
source.
SEE OR SEARCH THIS CLASS, SUBCLASS:
242 for supports for hand held heated tip instruments.
246 for sole plate pressure device combined with a stand.
Subclass:
260
This subclass is indented under subclass 200. Subject matter
relating to devices including electrical resistive means
adapted, when heated to incandescence, to be brought into
intimate contact with a material or object whereby the
material or object is caused to be ignited, at least in part,
or wholly consumed and which devices are not elsewhere
classifiable.
SEE OR SEARCH CLASS:
110, Furnaces, subclass 250 for refuse burners which may
employ electrical heating means.
122, Liquid Heaters and Vaporizers, subclass 2 for garbage
burners.
221, Article Dispensing, 143 for dispensing means with
electrical igniting means.
361, Electricity: Electrical Systems and Devices, 247 for
igniters which utilize the electric spark; particularly
subclasses 264+ for incandescent feature.
431, Combustion, 258 for an electrical igniter combined with
a fuel burner.
Subclass:
261
This subclass is indented under subclass 260. Subject matter
including means whereby a draft of air is circulated through
or around the object or article to be ignited whereby
ignition thereof is expedited or accelerated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
296 for liquid heaters with forced circulation means.
369 for convection type fluid heaters with forced fluid
circulating means.
380 for fluid heaters with fluid impeller to control the
fluid pressure.
SEE OR SEARCH CLASS:
221, Article Dispensing, 144 for dispensing devices having
electrical igniter means combined with vacuum or draft
producing means.
Subclass:
262
This subclass is indented under subclass 260. Subject matter
including means whereby the current traversing the ignition
unit of the device is controlled either automatically or at
the will of an operator or whereby the ignition unit is
connected to or disconnected from an external source of
electricity.
SEE OR SEARCH THIS CLASS, SUBCLASS:
482 for power supply, current regulation or control means
for heating devices in general under the class definition.
507 for heating devices in general with electric current
connection and/or disconnection means.
Subclass:
263
This subclass is indented under subclass 262. Subject matter
wherein the current control or external circuit connecting or
disconnecting means is automatically responsive to some
predetermined condition of the igniter device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
490 for automatically actuated power supply, voltage or
current regulation or control means, and subclasses 509+ for
automatically actuated current connection or disconnection
means for heating devices in general under the class
definition.
Subclass:
264
This subclass is indented under subclass 263. Subject matter
wherein the current control or external circuit connection or
disconnection means is thermally responsive to the condition
of the ignition unit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
494 and 510+, for thermally responsive current control or
external circuit connection means for heaters in general
under the class definition.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 117 for thermally responsive switching systems.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses for electrothermally and
thermally actuated switches.
361, Electricity: Electrical Systems and Devices, 161 for
thermally actuated relay circuits.
Subclass:
265
This subclass is indented under subclass 264. Subject matter
wherein the significant circuit connection means includes at
least one or more bimetallic or other elements capable of
flexing when heated.
SEE OR SEARCH CLASS:
337, Electricity: Electrothermally or Thermally Actuated
Switches, 333 for bimetallic and subclasses 382+ for
longitudinally expansible solid actuated thermal switches.
Subclass:
266
This subclass is indented under subclass 262. Subject matter
wherein the significant external electric circuit connection
or disconnection means claimed comprises resilient spring
material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
109 for a current supply indicator (e.g., a recorder, etc.)
to a pressure bonding (e.g., resistance welding, etc.) metal
heating (e.g., resistance heating, etc.) apparatus.
445.1 for an exposed horizontal planar support surface for
material to be heated (e.g., hot plate, etc.) with an
indicator.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 61.58 for
switches actuated concurrently with the operation or use of
an art device, especially subclasses 61.76+ for spring
actuated switches and subclasses 402+, for spring actuated
snap switches.
Subclass:
267
This subclass is indented under subclass 260. Subject matter
including significant details of the housing, casing or
support device within or upon which the igniter unit is
mounted. The structure to be found here will be generally
restricted to the igniter plug or removable part of the
device but may include details of the fixed receptacle which
act to cooperate with features of the igniter in a manner to
complete an electrical circuit, lock the two against
displacement etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
270 for structure of resistance igniter element, per se.
520 for significant housing or casing structure for heating
devices in general under the class definition.
SEE OR SEARCH CLASS:
221, Article Dispensing, 143 for article dispensing devices
combined with electrical igniter means.
Subclass:
268
This subclass is indented under subclass 260. Subject matter
including significant details of means comprising a source of
current or power for utilization in providing heating current
in the resistive element heating means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
482 for power supplies for heating devices in general under
the class definition.
Subclass:
269
This subclass is indented under subclass 260. Subject matter
including means whereby some predetermined condition of the
resistive element is communicated to the user by audible or
other means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
248 for electric irons with indicators.
487 for selectively controlled plural resistance elements
with indicator means.
506 for power supply, current or voltage regulation or
control means for heating devices in general under the class
definition and having signal or indicating means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 167
for switches with indicators.
340, Communications: Electrical, 384.1 for an audible
signaling device or subclass 640 for a heater element
condition responsive system.
Subclass:
270
This subclass is indented under subclass 260. Subject matter
including significant details of the resistance heating
unit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
267 for the resistance heating structure associated with
additional housing or support means.
538 for significant heating unit structure useful in heating
devices in general under the class definition.
SEE OR SEARCH CLASS:
338, Electrical Resistors, appropriate subclasses for
resistor element structure, per se.
Subclass:
383
This subclass is indented under subclass 200. Apparatus
including at least two spaced apart electrodes associated
with a voltage generating means whereby when voltage is
applied from the generating means to the electrodes an
electrical discharge is established between the electrodes.
The subject matter classified herein includes devices wherein
the electrical discharge takes place directly through a
nonmetallic material to be heated as well as apparatus where
the electrical arc occurs through air or other gases with the
material to be heated confined within the influence of the
arc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
121.11 for miscellaneous heating of metal by an electrical
arc produced between opposed electrodes or between an
electrode and the metal.
232 for hand held heated tip devices utilizing an internal
arc heater unit.
234 for hand held heated tip devices with tip and work in
circuit.
284 for liquid heaters with liquid in circuit.
SEE OR SEARCH CLASS:
250, Radiant Energy, 542 for electrical arc means
specialized for carrying out chemical reactions wherein the
electrical energy is more than a mere heating means.
313, Electric Lamp and Discharge Devices, appropriate
subclasses for the structure for electric space discharge
devices designed to produce an electric arc.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses for electric space
discharge devices, including arc discharge devices of the
consumable electrode type and the circuits for supplying
electric current thereto.
315, Electric Lamp and Discharge Devices: Systems,
appropriate subclasses, for systems for supplying electric
current to arc discharge devices.
373, Industrial Electric Heating Furnaces, 61 for furnaces
in which a charge is heated by means of an electric arc
produced between opposed electrodes.
Subclass:
384
This subclass is indented under subclass 383. Subject matter
including means whereby a nonmetallic material is positioned
between the electrodes of the device in such a position that,
upon application of a voltage to the electrodes, the material
within the influence of the electrodes is caused to be
disintegrated thereby causing a permanent void or perforation
therein.
SEE OR SEARCH CLASS:
83, Cutting, subclass 16 for processes utilizing means for
heating material at a localized area such as a line of
separation and subclass 170 for heat apparatus for heating
the work.
283, Printed Matter, 72 for fraud prevention devices
utilizing perforating or other material marking devices which
are of the electric arc type.
346, Recorders, particularly subclass 150.2 for phenomenal
electric recorders in general wherein an electric arc
penetrates the recording medium.
347, Incremental Printing of Symbolic Information, 159 for
generic electric recorder wherein an electric arc penetrates
the recording medium.
428, Stock Material or Miscellaneous Articles, subclass 596
for metallic stock material which has apertures that may be
the result of a metal heating process.
Subclass:
385
This subclass is indented under subclass 200. Apparatus
including significant details of at least one heating device
combined with a container, enclosure or support means for the
material to be heated and wherein the combination claimed is
not specifically provided for above or in another art class.
(1) Note. Class 219 is the generic class for electric
heating. Class 373 is specific to the electric furnace
structures or method for electrically melting or fusing
refractory materials, usually granular in nature (ores,
oxides, sulphides, etc.), the materials having a melting
point of lead or above. Class 373 also provides for the
electrically stirring of such high temperature melts. Class
373 also provides for electrical furnaces for melting or
treating glass or silica (subclasses 27+) and for treating
carbon (subclasses 109+). Subclasses 17 and 139 of Class 373
provides also for miscellaneous electric furnaces, such as
the zone refining or melting type (e.g. semiconductor
materials) and wherein electric furnace structure is claimed.
See, also, the definition of Class 373 and the reference to
Class 373 under Search Class in the class definitions of
Class 219.
SEE OR SEARCH THIS CLASS, SUBCLASS:
520 for the structure of the heater unit and housing, casing
and support therefor.
SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids, subclass 201
for drying apparatus combined with kilns or containers.
99, Foods and Beverages: Apparatus, 324 for cooking
apparatus.
119, Animal Husbandry, subclass 301 for brooders and
incubators, subclasses 302+ for brooders, and subclasses 318+
for incubators utilizing electrical energy.
126, Stoves and Furnaces, subclass 33 for steam tables,
subclass 55 for combined base and hot closet, subclass 224
for domestic refuse burners, and subclasses 273+ for ovens.
138, Pipes and Tubular Conduits, subclass 32 for tubular
conduits with heater means.
310, Electrical Generator or Motor Structure, 341 for
crystal ovens.
366, Agitating, subclass 7 and 22 for process and apparatus
of heated mortar mixing, and subclasses 144+ for heated
mixers of general utility.
373, Industrial Electric Heating Furnaces, see (1) Note,
above.
432, Heating, 227 for a residual heat generator with an
associated work support or heat delivery structure.
607, Surgery: Light, Thermal, and Electrical Application, 81
for cabinets for enclosing the human body during application
of heat.
Subclass:
386
This subclass is indented under subclass 385. Subject matter
including means whereby the special container may be lifted
and carried bodily from place to place by hand or is provided
with wheels or casters whereby it may be transported from one
location to another.
SEE OR SEARCH THIS CLASS, SUBCLASS:
227 for electrically heated hand tools or instruments.
346 for transportable fluid heaters.
533 for portable heater unit with housing, casing or support
means.
SEE OR SEARCH CLASS:
126, Stoves and Furnaces, subclass 11 for portable magazine
stoves, subclass 268 for heated lunch wagon devices, and
subclass 276 for wagon ovens.
206, Special Receptacle or Package, appropriate subclasses
for a container particularly configured to hold a specific
article or material including an article (s) or material (s)
put up as a mercantile unit.
600, Surgery, subclass 22 for incubators.
Subclass:
387
This subclass is indented under subclass 386. Subject matter
wherein the significant container comprises a device
specifically adapted for the heating or maintaining the
temperature of foodstuffs such as a lunch box.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, appropriate subclasses
for containers specifically adapted for the treatment,
cooking or storing of foods which may be and generally are
portable.
126, Stoves and Furnaces, 261 for lunch heaters,
particularly subclasses 262 and 266+.
296, Land Vehicles: Bodies and Tops, subclass 22 for lunch
wagons.
Subclass:
388
This subclass is indented under subclass 385. Subject matter
including means whereby material to be heated is continuously
passed through a container or enclosure while being subjected
to the effects of a heating device or devices, usually by
means of conveyor means.
SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids, 201,
especially subclasses 203+ for houses, kilns and containers
combined with conveyor means.
53, Package Making, subclass 127 for apparatus including
heating or cooling the material contents of packages while
being conveyed past a station.
118, Coating Apparatus, 641 for coating apparatus combined
with radiant heating devices in which the coated work may be
passed through the heating area, see particularly subclasses
65, 67 and 68.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, for an injection type molding machine having
distinct means for heating or cooling to enhance feeding of
the work, and 378.1 for an extrusion shaping apparatus
including heating or cooling means for the material being
shaped.
Subclass:
389
This subclass is indented under subclass 385. Subject matter
including means whereby the container or enclosure is adapted
to be rotated about an axis. The container along with the
heated material may be made to rotate about or around a fixed
heating means or the heating means may be so fixed to the
rotating container as to rotate therewith as a unit.
SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids, 108 for
rotary drums or receptacles combined with drying means.
366, Agitating, subclass 7 and 22+ for process and apparatus
for heating and mixing mortar, and subclass 146 for nominal
electric heating with an agitator of general utility.
494, Imperforate Bowl: Centrifugal Separators, 13 for a
separator of that class provided with heat exchange means.
Subclass:
390
This subclass is indented under subclass 385. Subject matter
wherein the container or enclosure structure comprises an
inner compartment for holding the material to be heated, the
compartment wall, or walls, preventing direct transmission of
heat energy derived from the heating means to the material.
SEE OR SEARCH CLASS:
126, Stoves and Furnaces, particularly 19 and 273+ for
externally heated domestic ovens.
432, Heating, subclass 212 and 319 for a residual muffle
type furnace heated by nonelectric or merely nominally
recited electrical heating means.
Subclass:
391
This subclass is indented under subclass 385. Subject matter
wherein the special container or enclosure structure consists
of a chamber designed for baking, heating or drying utilizing
heated air and in which the material heated retains its
original physical condition, shape or form and which chamber
usually constitutes a part of a stove.
(1) Note. The subject matter classified here and in the
indented subclasses differs from that to be found in
subclasses 420+ below in that in the lower subclasses the
device is constructed of very high refractory material
adapted to withstand extremely high temperatures whereby the
heated material may be melted or otherwise treated to alter
its chemical composition, condition, form or shape.
SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids, 201 for
houses, kilns and containers adapted for drying.
99, Foods and Beverages: Apparatus, 324 for devices for the
preparation of food combined with oven means.
110, Furnaces, appropriate subclasses for furnace structure
combined with a container which is adapted for the burning of
a particular material, particularly 230 for solid fuel
furnaces provided with coking means; and subclass 242 for a
closed retort refuse incinerator.
118, Coating Apparatus, 58 for coating apparatus combined
with drying means for the coated material.
126, Stoves and Furnaces, 19 for cooking ovens and
subclasses 273+ for domestic ovens in general.
202, Distillation: Apparatus, appropriate subclasses for
kilns and ovens.
362, Illumination, 92 for oven structure combined with light
means.
373, Industrial Electric Heating Furnaces, for high
temperature furnaces, usually for melting highly refractory
materials.
Subclass:
392
This subclass is indented under subclass 391. Subject matter
wherein the structure includes an oven with an additional
separate and distinct container, enclosure or support for
material to be heated both of which are contained within or
share a common housing, container or support means and are
adapted for simultaneous or selective use.
SEE OR SEARCH THIS CLASS, SUBCLASS:
283 for liquid heater combined with a nonliquid heater.
314 for liquid heaters with plural containers or
compartments.
394 for plural ovens.
452.11 for an exposed horizontal planar support surface for
material to be heated (e.g., hot plate, etc.) having a frame,
casing, or housing (e.g., range top, stove top, countertop,
etc.) for a heating unit.
475 for heaters in general with plural heat utilization
means.
SEE OR SEARCH CLASS:
126, Stoves and Furnaces, 1 for cooking stove structure
comprising oven means combined with other cooking or heating
devices.
Subclass:
393
This subclass is indented under subclass 391. Subject matter
including means whereby the oven structure in whole or in
part is adapted to function both as an enclosure for material
to be heated and for a diverse purpose; such as, a support
for vessels; a support for a further heating device or as a
working surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
283 for liquid heater combined with a nonliquid heater.
394 for plural ovens.
452.13 for an exposed horizontal planar support surface for
material to be heated (e.g., hot plate, etc.) having a frame,
casing, or housing for a heating unit (e.g., range top, stove
top, countertop, etc.) that is convertible.
472 for heaters in general that simultaneously perform
plural diverse functions.
475 for single heater in general with plural heat
utilization means.
SEE OR SEARCH CLASS:
126, Stoves and Furnaces, subclass 19 for convertible ovens
and subclass 275 for portable ovens which may be utilized in
plural manners.
Subclass:
394
This subclass is indented under subclass 391. Subject matter
including a plurality of separate and distinct oven type
enclosures. The enclosures may be separately supported each
with its own individual heating means or may be collectively
attached to a single unitary support with or without
individual heating means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
314 for liquid heaters with plural containers or
compartments.
428 for heaters in general associated with a plurality of
separate and distinct enclosures.
475 for single heater in general with plural heat
utilization means.
SEE OR SEARCH CLASS:
126, Stoves and Furnaces, 20.1 for plural ovens heated by
steam or hot water.
Subclass:
395
This subclass is indented under subclass 391. Subject matter
wherein the heating device structure includes at least two or
more separate and distinct heating units.
SEE OR SEARCH THIS CLASS, SUBCLASS:
417 for deep well heaters with plural separate heating
units.
422 for crucible or furnace structures with plural separate
heating units.
462.1 for an exposed horizontal planar support surface for
material to be heated (e.g., hot plate, etc.) having plural
heating elements gapped from underside of the exposed
horizontal support surface (e.g., ceramic plate, radiation
type, etc.).
464.1 for an exposed horizontal planar support surface for
material to be heated (e.g., hot plate, etc.) having plural
tubular heating units.
470 for cylindrical or roller support structures with plural
heating units.
539 below for significant heating unit structure comprising
plural resistive elements, subclass 478 for plural heating
devices under the class definition combined with a single
housing support or casing for the heaters, and subclasses
483+ for significant power supply, voltage or current
regulation or control means combined with plural separate and
distinct resistance elements.
Subclass:
396
This subclass is indented under subclass 395. Subject matter
wherein each of the plurality of heating units is of a
different mechanical construction or the heat energy produced
thereby is utilized in a different manner, as for example by
direct heat conduction and by radiation.
(1) Note. To complete the search for this subject matter
see search notes under subclass 479 below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
479 for plural separate electrical heating devices of
diverse type.
Subclass:
397
This subclass is indented under subclass 395. Subject matter
wherein each of the plurality of heating units is of a
different resistive value.
SEE OR SEARCH THIS CLASS, SUBCLASS:
484 for heater control system in general for plural
resistance elements of diverse resistance characteristics.
539 for heater unit structure comprising plural separate and
distinct resistive elements.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 325 for cooking
apparatus with automatic control which utilize a plurality of
heating units separately activated.
Subclass:
398
This subclass is indented under subclass 395. Subject matter
including means whereby the separate heating units are
adapted to be selectively energized in a predetermined manner
or at will.
SEE OR SEARCH THIS CLASS, SUBCLASS:
457.1 for an exposed horizontal planar support surface for
material to be heated (e.g., hot plate, etc.) having a direct
manually actuated electrical switch.
480 below for separate heating devices in general under the
class definition combined with means whereby they are
selectively activated and subclasses 483+ for plural separate
resistance elements combined with control means.
Subclass:
399
This subclass is indented under subclass 391. Subject matter
including means whereby heat energy derived from the heating
unit or units is transferred by means other than direct
conduction to the oven to be heated, is distributed evenly to
all parts of the heated oven type enclosure or is accumulated
for later distribution to the heated oven.
SEE OR SEARCH THIS CLASS, SUBCLASS:
325 for liquid heaters with heat storage or transfer means.
347 for fluid heaters of the radiant type with heat storage
or transfer means.
365 for fluid heaters of the convection type with heat
storage or transfer means.
378 for fluid heaters in general with heat storage or
transfer means.
390 for muffle type heater.
430 for vessel and stand with heat storage or transfer
means.
439 for vessel with heat storage and transfer means.
530 for housing or casing in general with heat storage or
transfer means.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 389, 401, 433,
and 447 for heat distributors associated with various types
of cooking apparatus.
126, Stoves and Furnaces, subclass 273.5 for domestic ovens
with heat accumulator means (e.g., fireless), and subclass
274 for Dutch ovens.
Subclass:
400
This subclass is indented under subclass 399. Subject matter
including means whereby heat energy transfer is accomplished
by convection currents.
(1) Note. Devices of a similar nature where the entire
heating of a closed space is attained by convection currents
will be classified above in subclasses 369+ according to the
specific details of the heating means utilized with
appropriate cross referencing to this subclass whenever the
claimed subject matter includes oven structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
359 for fluid heaters of the convection type, particularly
subclass 375 for such heaters with heat storage or transfer
means (see also (1) Note above).
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 467 for subjecting food
to an enclosed modified atmosphere that may be steam.
126, Stoves and Furnaces, subclass 274 for Dutch ovens
heated by convection currents from an open fireplace or
stove.
Subclass:
401
This subclass is indented under subclass 391. Subject matter
including steam of vapor pressure generating means whereby
the heating of an enclosed oven space is caused to take place
at an elevated pressure above that of the external
atmosphere.
SEE OR SEARCH THIS CLASS, SUBCLASS:
271 for fluid heaters with vaporizer means.
362 for fluid heaters of the convection type with vaporizer
means.
440 for a vessel with pressure generating or maintaining
means (e.g., pressure cooker, etc.).
Subclass:
402
This subclass is indented under subclass 391. Subject matter
including significant details of housing, casing or support
means for the heating unit, or units, of the heating device.
(1) Note. The housing, casing or support structure forming
the subject matter to be found here is for the purpose of
enclosing or supporting the heating unit, or units of the
combination only and does not include the details of the oven
or either container of the combination. Housing, casing or
support means in combination with heaters in general under
the class definition are classified below in subclasses
520+.
Subclass:
403
This subclass is indented under subclass 402. Subject matter
including means whereby the heating unit, or units, may be
supported within or readily inserted or removed from within
the heated enclosure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
316 for liquid container or tank with immersible heating
unit.
381 for fluid heaters in general with immersion type
heater.
437 for vessel and stand with immersible heating unit.
453.13 for an exposed horizontal planar support surface for
material to be heated (e.g., hot plate, etc.) having a
support that allows a heating unit to move.
523 for heating devices in general under the class
definition combined with a housing or casing means and which
are adapted to be inserted as a unit with the housing or
casing, into a space intended to be heated.
541 for heater unit, per se, with terminal or connector
means.
Subclass:
404
This subclass is indented under subclass 402. Subject matter
including means whereby the housing, casing or support
including the heating unit or units are hingedly or
adjustably supported within a heated enclosure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
453.11 for an exposed horizontal planar support surface for
material to be heated (e.g., hot plate, etc.) for a hinge
support that allows a heating unit to tilt or pivot.
Subclass:
405
This subclass is indented under subclass 402. Subject matter
wherein the housing, casing or support structure includes
heat energy reflecting or directing means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
347 for fluid heaters of the radiant type with heat energy
reflector means.
455.12 for an exposed horizontal planar support surface for
material to be heated (e.g., hot plate, etc.) having a pan or
cup (e.g., a drip pan, etc.) reflecting support for a heating
unit.
538 below for significant heating unit structure utilizable
with heating devices under the class definition and including
reflector or focusing means.
SEE OR SEARCH CLASS:
126, Stoves and Furnaces, subclass 274 for Dutch ovens
utilizing reflector.
Subclass:
406
This subclass is indented under subclass 391. Subject matter
including resistance means surrounding at least a major
portion of the heating area of an oven type enclosure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
210 for heating devices combined with electrical devices of
a vibrating type (e.g., piezoelectric crystals and employing
ovens with an external heating winding).
300 for heaters wherein the liquid conveying tube is the
heater.
301 for liquid heaters wherein the heater unit surrounds the
liquid conveying tube.
424 for crucible or furnace with the heating element
surrounding the wall of the crucible or furnace.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, 341 for
crystal ovens with electric heating means.
Subclass:
407
This subclass is indented under subclass 406. Subject matter
wherein the resistance heating means is described as embedded
within or located between the inner and outer walls of the
oven type enclosure means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
424 for crucible or furnace with resistance heating element
embedded in the wall thereof.
438 for electrically heated vessels having resistance
elements embedded within or between the walls thereof.
Subclass:
408
This subclass is indented under subclass 391. Subject matter
including significant fixed heating means enclosed by or
permanently attached within the heating area of an oven type
enclosure.
Subclass:
409
This subclass is indented under subclass 391. Subject matter
including significant heating unit structural elements or
composition whereby the heating unit means is particularly
adapted for use in combination with an oven type enclosure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
538 for significant heating unit structure of a general
nature under the class definition.
Subclass:
410
This subclass is indented under subclass 409. Subject matter
comprising a single heating element having a plurality of
sections which may be energized simultaneously to provide an
element of one resistance value or selectively to provide
variable resistance means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
539 for heating element structure in general under the class
definition and comprising plural sections.
Subclass:
411
This subclass is indented under subclass 409. Subject matter
wherein the particular heating unit structure comprises
infrared generating means particularly adapted for use with
an oven type enclosure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
353 for radiant heaters with particular heating unit
structure.
553 for infrared generators in general and adapted for use
with the heating devices under the class definition.
SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids, 519 for
drying with radiant or conducting heating and subclasses 201+
for houses, kilns and containers combined with heating means
which may be of the infrared generating means.
250, Radiant Energy, 493.1 for radiant energy generators and
sources.
607, Surgery: Light, Thermal, and Electrical Application,
subclass 1 for thermal applicators which may utilize
infrared sources, particularly subclasses 81+ for cabinets
combined with such heat sources.
Subclass:
412
This subclass is indented under subclass 391. Subject matter
including means whereby the current traversing the heating
element or elements of the device is maintained between
levels or is applied at a predetermined time or for
predetermined intervals of time by either electromechanical
or electrical means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
482 for power supply, voltage or current regulation or
control means applicable to heating devices under the class
definition.
Subclass:
413
This subclass is indented under subclass 412. Subject matter
comprising means automatically responsive to the conditions
prevailing within the heated area such as the degree of
temperature at any given time.
SEE OR SEARCH THIS CLASS, SUBCLASS:
490 below to complete the search for this subject matter.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 325 for cooking
apparatus with automatic control of the heater means.
126, Stoves and Furnaces, for general heat applying apparatus
having other than electrical heating means, subclass 351.1
for a fluid fuel burner other than a top-accessible liquid
heating vessel and a condition responsive feature or subclass
374.1 for an open-top liquid heating vessel that may include
a lid and a condition responsive feature.
323, Electricity: Power Supply or Regulation Systems,
appropriate subclasses for voltage and current regulators in
general.
338, Electrical Resistors, 13 for electrical resistors whose
resistance value is responsive to a condition, particularly
subclasses 25+ for resistors responsive to ambient
temperature.
Subclass:
414
This subclass is indented under subclass 391. Subject matter
including significant details of means whereby a circuit is
completed between the heating unit or units of the device and
an external current source.
SEE OR SEARCH THIS CLASS, SUBCLASS:
507 below for heaters under the class definition combined
with external circuit completion or disconnection means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses for electric switch structure.
Subclass:
415
This subclass is indented under subclass 385. Subject matter
including a casing structure, usually cylindrical, extending
vertically below a supporting plane or surface structure and
having a vertical dimension greater than its horizontal
dimension, and having an open end contiguous with an opening
in the supporting surface whereby a vessel or container,
adapted to contain material to be heated, may be inserted
into the interior thereof and subjected to the influence of
heat energy generated by an associated heating unit or units.
The heating unit generally is attached to the outer casing
in a position to surround the inner container or to contact
or transfer heat energy to the bottom of the container in the
manner of a hot plate.
SEE OR SEARCH THIS CLASS, SUBCLASS:
433 for vessel and stand combinations with heating devices
in which the stand may completely enclose the vessel somewhat
similar to a deep well cooker.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 359 for heated
receptacles modified to contain jars or cans of food, and
subclasses 403+ for heated vessels modified to contact a food
material with a heated liquid contained therein.
126, Stoves and Furnaces, for general heat applying apparatus
having other than electrical heating means, subclass 348 for
a liquid heating steam generating and cooking kettle
furnace.
422, Chemical Apparatus and Process Disinfecting,
Deodorizing, Preserving, or Sterilizing, 292 for sterilizing
devices similar in structure to Class 219 deep well devices
and sterilizing apparatus using steam.
Subclass:
416
This subclass is indented under subclass 415. Subject matter
including means whereby the device may be adapted to function
as a deep well type heater or a diverse type. Some examples
of diverse types to which the deep well type heater may be
converted are hot plate (surface cooker) and broiler type.
SEE OR SEARCH THIS CLASS, SUBCLASS:
452.13 for an exposed horizontal planar support surface for
material to be heated (e.g., hot plate, etc.) having a frame,
casing, or housing for a heating unit (e.g., range top, stove
top, countertop, etc.) that is convertible.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 340 for
convertible cooking devices.
Subclass:
417
This subclass is indented under subclass 415. Subject matter
including at least two or more separate heating units.
SEE OR SEARCH THIS CLASS, SUBCLASS:
476 for plural separate heater devices in general.
Subclass:
418
This subclass is indented under subclass 415. Subject matter
including means whereby at least one heating unit of the
device may be adjusted in position relative to the well
structure.
Subclass:
419
This subclass is indented under subclass 415. Subject matter
including means whereby the current traversing the heating
element, or elements of the device, is regulated or
maintained between predetermined limits, or applied to or
withdrawn from the device thereby assuring that the
temperature of the heating space is maintained at a
predetermined value or between predetermined limits.
SEE OR SEARCH THIS CLASS, SUBCLASS:
482 below for heating devices in general under the class
definition combined with power supply, voltage or current
regulation or current control means.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 331 for cooking devices
with automatic control of the heat or heater.
126, Stoves and Furnaces, subclass 374 for water heating
vessels with automatic control.
Subclass:
420
This subclass is indented under subclass 385. Subject matter
wherein the special container or enclosure structure
includes: (1) a vessel or melting pot of some very
refractory substance, such as clay, graphite, porcelain, or a
relatively infusible metal, used for melting solid substances
which require a high degree of heat or (2) an enclosed
structure comprised of a very highly refractory substance
whereby a very high degree of heat may be transferred to a
solid material contained therein.
(1) Note. The patents in this and the indented subclasses
are directed to subject matter similar in nature to the
subject matter classified in Class 373, subclasses 109+, the
difference being that herein significant details of the
electric heating means are claimed with the furnace being
either broadly claimed or recited only as an environment for
a specific heating device. Class 219 is the generic class of
electrical heating and generally takes only those patents
which do not claim (or in some cases disclose) sufficient
structure to be classified in a specific art class. In order
to complete the search for the subject matter classified in
this and indented subclasses, the appropriate subject matter
in Class 13 should be considered.
SEE OR SEARCH CLASS:
65, Glass Manufacturing, subclass 347 for melting pot or
furnace structure adapted for the manufacture of glass.
126, Stoves and Furnaces, subclass 284 for devices primarily
designed for the melting of glue and analogous substances
(the pots are usually water or steam jacketed), subclass
343.5 for heaters especially adapted for melting substances
by the application of heat to a receptacle, conduit or
support for the material to be melted and other appropriate
subclasses for significant furnace structure.
164, Metal Founding, 335 for metal casting apparatus
including a ladle or crucible type metal receptacle.
266, Metallurgical Apparatus, 171 and 220+ for furnaces
adapted for the treatment of metals and metal bearing ores.
432, Heating, 156 for a residual nonelectric furnace or one
having a merely nominal electrical heater particularly
adapted to heat material in a crucible; and subclasses 262+
for a residual crucible, per se.
Subclass:
421
This subclass is indented under subclass 420. Subject matter
including container means comprising a vessel, usually
constructed of a highly refractive material, peculiarly
adapted for the heating of some material which constitutes a
solid at room temperature and assumes a liquid state at some
higher temperature. The patents to be found in this subclass
for the most part specifically state in the claims that the
device is for the purpose of melting some solid to a molten
state; however where the claims do not so specifically state,
but contain structure which would restrict the device to use
as a melting pot and in which the ranges of temperatures
disclosed or claimed are not such as to classify the patent
elsewhere in some other art class the patent is classified
here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
415 for deep well heaters.
429 for vessel with stand with heater.
438 for vessel with heater.
SEE OR SEARCH CLASS:
65, Glass Manufacturing, subclass 347 for glass melting pot
or furnace with fining or delivery zone.
126, Stoves and Furnaces, subclass 284 for glue pots and
subclass 343.5 for melting furnaces.
266, Metallurgical Apparatus, 200 for melting furnaces.
Subclass:
422
This subclass is indented under subclass 420. Subject matter
including at least two or more separate and distinct heating
units.
SEE OR SEARCH THIS CLASS, SUBCLASS:
476 for a plurality of heating devices, under the class
definition, especially subclass 478 for such a plurality
combined with a unitary housing or support.
Subclass:
423
This subclass is indented under subclass 420. Subject matter
including means whereby the heating unit or units are
protected from damage, deterioration, or destruction either
from causes arising from normal usage, such as burn out due
to excessive current, or from external forces.
SEE OR SEARCH THIS CLASS, SUBCLASS:
481 for heating devices in general under the class
definition combined with protective means.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, 1 for
electrical power systems or devices combined with safety or
protection means.
Subclass:
424
This subclass is indented under subclass 420. Subject matter
including resistance heating element means surrounding or
permanently embedded within the walls of a crucible or
furnace type container.
SEE OR SEARCH THIS CLASS, SUBCLASS:
406 for heating means combined with and surrounding an oven
type container and subclass 407 for heating means embedded
within or between the walls of an oven.
SEE OR SEARCH CLASS:
373, Industrial Electric Heating Furnaces, subclass 119 for
resistance heater type furnaces with the resistance heater in
the walls.
Subclass:
425
This subclass is indented under subclass 420. Subject matter
wherein the structure claimed includes means whereby the
voltage or current applied to the heating unit or units of
the apparatus can be varied at will, maintained between
preselected limits or cut off completely. The controlling
means may be either manual, automatic or a combination of the
two.
SEE OR SEARCH THIS CLASS, SUBCLASS:
482 below for heating devices under the class definition
combined with power supply, voltage or current regulation or
current control means.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems.
373, Industrial Electric Heating Furnaces, 135 for electric
furnaces combined with control systems.
Subclass:
426
This subclass is indented under subclass 420. Subject matter
wherein the structural combination includes significant
details of at least one heating unit in heat exchange
relationship with a container of the crucible or furnace
type.
SEE OR SEARCH THIS CLASS, SUBCLASS:
538 for significant heating unit structure applicable to
heating devices in general under the class definition.
SEE OR SEARCH CLASS:
373, Industrial Electric Heating Furnaces, 94 for electrode
holders and adjustment means for arc furnaces and subclasses
128+ for significant resistance elements and mountings for
resistance furnaces.
Subclass:
427
This subclass is indented under subclass 426. Subject matter
wherein the heating element of the device is comprised of at
least a portion of the container walls or structure.
(1) Note. The heating effect in this subclass is caused by
the [supscrpt]2[end supscrpt]R loss in the resistive wall and
should be differentiated from the arc type furnace where the
furnace wall may constitute one electrode of the heating
means or those resistance furnaces where the charge
constitutes the electrical resistance.
SEE OR SEARCH THIS CLASS, SUBCLASS:
300 for circulatory water heating devices where the liquid
conveying conduit comprises the resistance element.
436 for heaters wherein the vessel wall may comprise the
heating element.
Subclass:
428
This subclass is indented under subclass 385. Subject matter
wherein the enclosure or container structure comprises a
plurality of separate and distinct enclosures. The
enclosures may be separately supported, each with its own
heating device, or may be collectively attached to a single
unitary support with or without individual heating means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
314 for liquid heaters with plural containers or
compartments.
394 for plural oven type heater apparatus.
475 for single heater in general associated with plural heat
utilization means.
476 for plural heating devices under the class definition.
SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids, 127 for
plurality of rotary containers with drying means, subclass
180 for plural stationary receptacles or tubes with agitator
or conveyor means, subclass 190 for plural elevator type and
subclasses 209+ for plural housings, kilns or containers.
126, Stoves and Furnaces, 20.1 for a plurality of cooking
ovens of the steam or hot water type.
202, Distillation: Apparatus, 113 for plural retorts,
subclasses 172+ for plural still type enclosures and subclass
242 for closures under the Class 202 definition.
Subclass:
429
This subclass is indented under subclass 385. Subject matter
wherein the enclosure for the material to be heated comprises
a hollow or concave utensil such as is normally used in a
kitchen or dairy as, for example, for the heating of
foodstuffs, boiling of water etc., and which is usually
portable, combined with significant stand or support
structure for the utensil.
SEE OR SEARCH THIS CLASS, SUBCLASS:
415 for deep well heaters with utensil immersible therein.
421 for furnace or crucible type melting pot with heater.
438 for vessel and heater, per se.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 324 for apparatus
adapted to support food articles or materials while
subjecting the food to a heat treatment; i.e., cooking. See
(2) Note under the Class 99, subclass 324, definitions for
the line between this class (219) and Class 99, subclasses
324+.
126, Stoves and Furnaces, for general heat applying apparatus
having other than electrical heating means, subclasses
373.1-390.1 for a liquid heater having an open-top vessel
that may include a lid.
202, Distillation: Apparatus, 105 for retorts adapted for
the holding of material to be distilled or decomposed by
heat.
Subclass:
430
This subclass is indented under subclass 429. Subject matter
including means whereby heat energy generated by an electric
heating device is transmitted to the contents of a vessel via
a conducting or other medium, the vessel to be heated not
being in direct heat transfer contact with the generating
means, or whereby the generated heat energy is stored for use
at a future time.
SEE OR SEARCH THIS CLASS, SUBCLASS:
439 for vessels and heaters, per se, with heat storage or
transfer means.
540 for significant heating unit structure under the class
definition including heat storage or transfer means.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 389, 401, 433,
and 447 for cooking apparatus combined with means to direct
heat or heated vapors to various portions of the food.
126, Stoves and Furnaces, subclass 400 for heat accumulator
structures.
Subclass:
431
This subclass is indented under subclass 429. Subject matter
including means whereby a pressure; greater than normal
atmospheric pressure, is generated or maintained within a
vessel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
280 for fluids heaters in general.
401 for ovens having steam generating means.
440 for electrically heated vessels, per se, of the pressure
maintaining type.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 323.4 for cereal
puffing apparatus utilizing means for producing sudden
changes in pressure, subclasses 324+ for pressure cooking
apparatus, and subclasses 467+ for apparatus subjecting food
to an electric field or current discharge.
122, Liquid Heaters and Vaporizers, appropriate subclasses
for high pressure steam generators.
126, Stoves and Furnaces, subclass 20 for steam or hot water
heated ovens.
220, Receptacles, appropriate subclass for metallic
receptacles to be used as pressure cookers.
422, Chemical Apparatus and Process Disinfecting,
Deodorizing, Preserving, or Sterilizing, 292 for sterilizing
devices similar in structure to Class 219 deep well devices
and sterilizing apparatus using steam.
Subclass:
432
This subclass is indented under subclass 429. Subject matter
including means whereby the vessel may be readily attached to
or separated from the stand.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 279 for infusors (e.g.
coffee makers) and appropriate subclasses under subclass 324
for cooking devices, such as subclasses 372+ (waffle irons
subclasses 385+ (toasters) or subclasses 403+ (boiler or deep
fat fryer) for vessels which are adapted for cooking and
which may be separable from the stand.
Subclass:
433
This subclass is indented under subclass 429. Subject matter
comprising heating unit means unitary with or otherwise
attached to the stand or base structure.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 221 for
sterilization and pasteurization means utilizing an electric
field, current or discharge, subclasses 279+ for infusors
which may utilize electric heating means in the stand,
subclasses 324+ for cooking apparatus with electric heating
means, and subclasses 358 and 451 for subjecting food to an
electric field or current discharge.
Subclass:
434
This subclass is indented under subclass 433. Subject matter
including means whereby the heating unit, or units, may be
adjusted relative to the vessel to be heated or to the
stand.
SEE OR SEARCH THIS CLASS, SUBCLASS:
310 for vessels utilized or claimed strictly as water
heaters, particularly subclasses 328 and 331 for heating
units readily detachable, removable or replaceable.
Subclass:
435
This subclass is indented under subclass 429. Subject matter
including significant details of means whereby the electrical
circuit between the heating device and an external source of
electrical current may be completed or interrupted either
automatically or at the will of an operator.
SEE OR SEARCH THIS CLASS, SUBCLASS:
507 for heating devices in general under the class
definition combined with significant current connection or
disconnection means.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 331 for vessels adapted
for cooking use combined with automatic control means for the
heat or heater.
338, Electrical Resistors, subclass 215 for resistors, per
se, combined with switch means.
Subclass:
436
This subclass is indented under subclass 429. Apparatus
including significant details of structure whereby the
heating unit or units are attached to or supported relative
to the vessel which is to be heated. Included are heated
vessels wherein the walls, or a wall, of the vessel itself
comprise the resistive heating unit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
336 for liquid heaters combined with particular mounting or
attachment means for the heating unit or units.
427 for crucibles or furnaces wherein the container
constitutes the heating element.
451.1 for an exposed horizontal planar support surface for
material to be heated (e.g., hot plate, etc.) having a
support for a heating unit.
536 for particular means for attaching heating unit means,
of a general nature under the class definition, to a housing,
casing or support.
541 for heating unit, per se, with terminal or connector
means.
Subclass:
437
This subclass is indented under subclass 436. Subject matter
wherein the heating unit is specifically claimed as
immersible in the material to be heated within a vessel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
316 for liquid heaters of the tank type with immersible
heating means.
381 for fluid heaters in general with immersible heating
unit.
523 for heating devices under the class definition combined
with a housing or casing which is immersible within a
material or space to be heated.
Subclass:
438
This subclass is indented under subclass 385. Subject matter
comprising only a vessel and associated heater.
SEE OR SEARCH THIS CLASS, SUBCLASS:
429 for vessel combined with significant stand structure.
Subclass:
439
This subclass is indented under subclass 438. Subject matter
including means whereby the interior of the vessel or
material contained therein is indirectly heated from an
electrical source of heat energy by means of a heat
transmission medium other than air, such as metallic or
liquid heat transfer means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
430 for similar subject matter combined with a vessel and
stand.
530 for heating devices under the class definition combined
with particular housing means including heat storage or
transfer means.
540 for significant heating unit structure including heat
storage or transfer means.
Subclass:
440
This subclass is indented under subclass 438. Subject matter
including means whereby the internal pressure within the
vessel is maintained between predetermined limits or whereby
a pressure in excess of normal atmospheric pressure is
generated as a result of the action of the heating unit or
units.
SEE OR SEARCH THIS CLASS, SUBCLASS:
431 for combined vessel and stand wherein the vessel is of
the pressure maintaining type.
SEE OR SEARCH CLASS:
122, Liquid Heaters and Vaporizers, appropriate subclasses
for high pressure steam generators.
126, Stoves and Furnaces, for general heat applying apparatus
having other than electrical heating means, subclass 348 for
a liquid heating steam generating and cooking kettle
furnace.
Subclass:
441
This subclass is indented under subclass 438. Subject matter
including means whereby the amount of current traversing the
heating unit, or units, of the device is controlled between
predetermined limits, current is completely cut off from the
device or the temperature of the material to be heated is
controlled between predetermined limits.
SEE OR SEARCH THIS CLASS, SUBCLASS:
482 for heating devices of a general nature under the class
definition combined with power supply, voltage or current
regulation or current control means.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 325 for cooking
apparatus combined with automatic temperature control means.
Subclass:
442
This subclass is indented under subclass 441. Subject matter
including significant apparatus whereby the temperature
control means may be adjusted between predetermined limits.
SEE OR SEARCH THIS CLASS, SUBCLASS:
494 for automatic heater control means in general of the
thermally responsive type.
Subclass:
443.1
Exposed horizontal planar support surface for material to be
heated (e.g., hot plate, etc.)
This subclass is indented under subclass 385. Subject
matter wherein the heating device has a laterally extending
flat exterior surface to support the material to be heated.
(1) Note. "Material" encompasses any tangible substance
that can be placed upon the "exposed horizontal planar
support surface"; however for this and indented subclasses
the term "material" is usually a cooking vessel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
228 for hand-manipulative tool or instrument having heat
distribution means (i.e., heat applied to extended area).
245 for a heating device combined with sole plate-type
pressure application means (e.g., flat irons, etc.).
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 288 for a
beverage infuser combined with a food heating or cooking
apparatus.
100, Presses, 92 for a press having an additional heating,
cooling, or drying means to treat material.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
379.6 for a means to apply wave energy or electrical energy
directly to work.
392, Electric Resistance Heating Devices, subclass 309 for a
hot plate combined with other than electric heating means
(e.g., gas, etc.) or subclass 467 for a continuous flow type
fluid heater including a hot plate.
432, Heating, a residual class for apparatus and related
methods for the generation of heat and its application to
materials, and 227 for a heat generator with an associated
work support or heat delivery structure.
Subclass:
444.1
Material is an electronic semiconductor device:
This subclass is indented under subclass 443.1. Subject
matter wherein the exposed horizontal planar support surface
is intended to support, for heating, apparatus formed of a
substance whose electrical conductivity at normal temperature
is between that of a conductor and an insulator to control
electron flow.
Subclass:
445.1
With indicator:
This subclass is indented under subclass 443.1. Subject
matter combined with means to display a condition of the
heating device or material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
109 for a current supply indicator (e.g., a recorder, etc.)
to a pressure bonding (e.g., resistance welding, etc.) metal
heating (e.g., resistance heating, etc.) apparatus.
248 for a heating device combined with a sole plate-type
pressure application means (e.g., a flatiron, etc.) including
a condition-responsive indicator.
266 for an igniter-type resistive element using resilient
means for current control or external circuit connection or
disconnection means.
487 for a heating device having a power supply and voltage
or current regulation or current control means to control or
regulate plural separate distinct heating resistance elements
(i.e., one control system for all elements, etc.)
selectively, sequentially, or alternately including indicator
means.
506 for a heating device having automatic regulating or
control means of power supply and voltage including signal or
indicator means.
SEE OR SEARCH CLASS:
116, Signals and Indicators, 67 for an alarm, especially
subclasses 101+ for a thermal alarm, or subclasses 200+ for
an indicator, especially subclasses 216+ for an indicator
having a temperature responsive or compensating means.
200, Electricity: Circuit Makers and Breakers, for generic
circuit maker and breaker structure, and 308 for an
electrical switch having indicator means.
340, Communications: Electrical, 577 for flame condition
responsive system, subclasses 584+ for a thermal condition
responsive system, subclass 600 for radiant energy condition
responsive system, subclasses 635+ for electrical apparatus
condition responsive system, especially subclass 640 for a
heater element condition responsive system or subclass 655
for a condition responsive system indicating heating circuit
energization.
Subclass:
446.1
Having sensor:
This subclass is indented under subclass 443.1. Subject
matter including means to detect a condition of the heating
device or material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
490 for a heating device having automatic regulation or
control of a power supply s voltage or current.
509 for a heating device having an automatically operated
power current connection and/or disconnection means (e.g.,
switch, etc.).
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 325 for a timing or
condition-responsive control means for cooking apparatus.
200, Electricity: Circuit Makers and Breakers, for generic
circuit maker and breaker structure.
307, Electrical Transmission or Interconnection Systems, 116
for a condition-responsive residual switching system.
323, Electricity: Power Supply or Regulation Systems, for a
generic class of electrical systems wherein a single
electrical source is coupled to a single electrical load
circuit and means are provided which control the magnitude or
level of the current or voltage of either or both of said
circuits, especially subclass 236 for other than an
electrical zero switching output level condition responsive
(e.g., heat, etc.) circuit.
340, Communications: Electrical, 577 for flame
condition-responsive system, subclasses 584+ for a thermal
condition-responsive system, subclass 600 for radiant energy
condition-responsive system, subclasses 635+ for electrical
apparatus condition-responsive system, especially subclass
640 for a heater element condition-responsive system, or
subclass 655 for a condition-responsive system indicating
heating circuit energization.
Subclass:
447.1
Responsive to presence of material (e.g., food, a cooking
vessel, etc.):
This subclass is indented under subclass 446.1. Subject
matter wherein the sensor detects the condition of the
material which is present on the exposed horizontal planar
support surface.
Subclass:
448.11
Responsive to temperature:
This subclass is indented under subclass 446.1. Subject
matter wherein the sensor detects the condition of warmth or
coldness of the heating device or material.
Subclass:
448.12
Having microprocessor to control output of the heating
device:
This subclass is indented under subclass 448.11. Subject
matter includes a computer processor contained on an
integrated-circuit chip using input from the temperature
sensor to regulate the thermal production of the heating
device.
Subclass:
448.13
Of material (e.g., food, a cooking vessel, etc.):
This subclass is indented under subclass 448.11. Subject
matter wherein the temperature sensor detects the temperature
of the material.
Subclass:
448.14
Using thermistor-type sensor:
This subclass is indented under subclass 448.13. Subject
matter wherein the temperature sensor utilizes a
semiconductor whose electrical resistance varies sharply in a
known manner with temperature to detect the temperature of
the material.
Subclass:
448.15
Using temperature expansible fluid-type sensor:
This subclass is indented under subclass 448.13. Subject
matter wherein the temperature sensor utilizes a liquid or
gas that expands or contracts with a change in temperature to
detect the temperature of the material.
Subclass:
448.16
Using bimetallic member-type sensor:
This subclass is indented under subclass 448.13. Subject
matter wherein the temperature sensor employs a component
comprising or consisting of two metals having different
coefficients of heat expansion whereby the sensor is
deflected with a change in temperature to detect the
temperature of the material.
Subclass:
448.17
Of the exposed horizontal planar support surface:
This subclass is indented under subclass 448.11. Subject
matter wherein the temperature sensor detects the condition
of the exposed horizontal planar support surface.
Subclass:
448.18
Using bimetallic member-type sensor:
This subclass is indented under subclass 448.17. Subject
matter wherein the temperature sensor employs a component
comprising or consisting of two metals having different
coefficients of heat expansion whereby the sensor is
deflected with a change in temperature to detect the
temperature of the exposed horizontal planar support
surface.
Subclass:
448.19
By rod or wire in a tube (e.g., thermo-cutoff, probe, etc.):
This subclass is indented under subclass 448.11. Subject
matter wherein the temperature sensor consists of a pole or a
flexible metallic thread in a hollow elongated cylinder
having different coefficients of heat expansion whereby a
change in temperature results in a relative change in length
between the pole or the flexible metallic thread and the
hollow elongated cylinder.
Subclass:
449.1
Heating by convection:
This subclass is indented under subclass 443.1. Subject
matter including means to provide for fluid circulation to
transfer heat between a heating element and the material or
the exposed horizontal planar support surface.
SEE OR SEARCH CLASS:
392, Electric Resistance Heating Devices, subclass 382 for a
concentrated heated air stream (i.e., blast) device including
a support for an article.
Subclass:
450.1
For direct contact with food (e.g., grill, griddle, etc.):
This subclass is indented under subclass 443.1. Subject
matter wherein the exposed horizontal planar support surface
is intended for an applied touch of a foodstuff.
SEE OR SEARCH THIS CLASS, SUBCLASS:
524 for a heater unit housing, casing or support means
(e.g., a frame and a single sheet, etc.) comprising a hinged
or separable compartment (e.g., waffle iron type, etc.) for
other than a heater unit having an exposed planar support
surface for material to be heated (e.g., hot plate, etc.).
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 372 for an opposed
heated mold or surface type (e.g., waffle iron, etc.),
subclasses 385+ for a slice toaster or broiler (e.g., grid
types, etc.), subclasses 422+ for imperforate sheet or
griddle type, or subclass 450 for a foraminous support.
126, Stoves and Furnaces, subclass 14 for a broiling
attachment that is inseparable from a stove structure.
Subclass:
451.1
Having support for a heating unit:
This subclass is indented under subclass 443.1. Subject
matter including means to bear up or hold up, or perform the
function of a foundation or prop for means combined with a
heating element to form a single integrated structure that
supports or positions the heating element in an operative
position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
436 for a vessel and stand heating device with heating unit
attaching or support means.
520 for a heater unit housing, casing, or support means
(e.g., a frame and a single sheet, etc.) for other than a
heater unit having exposed planar support surface for
material to be heated (e.g., hot plate, etc.).
SEE OR SEARCH CLASS:
392, Electrical Resistance Heating Devices, subclass 382 for
a heating device that uses a concentrated heated air stream
(i.e., blast, etc.) with a support.
Subclass:
452.11
Frame, casing, or housing (e.g., range top, stove top,
countertop, etc.):
This subclass is indented under subclass 451.1. Subject
matter wherein the support is an enclosure, cover, or
container to support the heating unit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
392 for an oven type container or enclosure combined with
additional material support.
478 for plural separate heating devices with unitary
housing, support, or casing means for other than a heater
unit having exposed planar support surface for material to be
heated (e.g., hot plate, etc.).
520 for a heater unit housing, casing, or support means
(e.g., a frame and a single sheet, etc.) for other than a
heater unit having exposed planar support surface for
material to be heated (e.g., hot plate, etc.).
SEE OR SEARCH CLASS:
126, Stoves and Furnaces, 4 for a cooking surface combined
with a heating stove or subclasses 211+ for a stove lid or
top.
312, Supports: Cabinet Structure, subclass 236 for a cabinet
combined with heating or heat exchange means.
Subclass:
452.12
Supporting an imperforate exposed horizontal planar surface
to overlie the heating unit (e.g., cooktop, etc.):
This subclass is indented under subclass 452.11. Subject
matter including means to bear up or hold up, or perform the
function of a foundation or prop for a laterally extending
flat exterior surface lacking an opening or aperture, usually
of a heat transmitting glass or ceramic material, to lie over
or upon the heating unit.
Subclass:
452.13
Convertible (e.g., to an oven, to storage, etc.):
This subclass is indented under subclass 452.11. Subject
matter including means to transform the frame, casing, or
housing (e.g., range top, stove top, countertop, etc.) into a
device having a utility other than the exposed horizontal
planar support surface for material to be heated (e.g., hot
plate, etc.).
SEE OR SEARCH THIS CLASS, SUBCLASS:
231 for a heating device for a convertible hand manipulative
tool or instrument having a heated tip or other heat
concentration means (i.e., heat applied to localized area,
etc.).
249 for a heating device combined with a convertible sole
plate-type pressure application means (e.g., a flatiron,
etc.).
393 for an oven-type heating device that performs plural
diverse functions.
416 for a heating device combined with a convertible deep
well for material to be heated.
472 for a heating device having plural functions
simultaneously or is convertible.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 340 for a
convertible cooking apparatus.
Subclass:
453.11
Allowing heating unit movement:
This subclass is indented under subclass 451.1. Subject
matter including means permitting the heating unit to move.
SEE OR SEARCH THIS CLASS, SUBCLASS:
403 for an oven heating device and a casing or support that
allows a heating unit to be retracted or detached from the
oven.
Subclass:
453.12
Enabling the exposed horizontal planar surface to conform to
material having other than a planar surface:
This subclass is indented under subclass 453.11. Subject
matter wherein the movable support permits the heating unit
combined with the exposed horizontal planar surface to adapt
to material having other than a flat surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
528 for a heater unit housing, casing, or support means
(e.g., a frame and a single sheet, etc.) that is flexible or
resilient (e.g., a warming pad, etc.) for other than a heater
unit having exposed planar support surface for material to be
heated (e.g., hot plate, etc.).
535 for a heater unit housing, casing, or support means
(e.g., a frame and a single sheet, etc.) that is specially
formed or adapted to fit material to be heated (e.g., a pipe,
etc.) for other than a heater unit having exposed planar
support surface for material to be heated (e.g., hot plate,
etc.).
549 for a heating unit structure having a core, sheath, or
support means for a heating element of flexible construction
or material.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 429 for a cooking
apparatus providing confining, conforming, or molding support
for the food.
Subclass:
453.13
Using hinge for tilting or pivoting:
This subclass is indented under subclass 453.11. Subject
matter wherein the means is a jointed device or flexible
piece on which the heating unit turns or swings.
SEE OR SEARCH THIS CLASS, SUBCLASS:
404 for an oven heating device and a casing or support that
is hinged or allows adjustment of a heating unit to the
oven.
Subclass:
453.14
Of pintle and gudgeon type:
This subclass is indented under subclass 453.13. Subject
matter wherein the hinge is a rodlike element and a socket
for the rodlike element on which the heating unit tilts or
pivots.
Subclass:
453.15
Having an axis at an acute or obtuse angle to the exposed
horizontal planar surface:
This subclass is indented under subclass 453.14. Subject
matter wherein the pintle and gudgeon of the hinge form a
straight line about which the heating unit rotates at an
inclination between 0 and 90 degrees or 90 and 180 degrees.
Subclass:
454.11
Bracket having a hub and three or more angularly spaced
horizontal projections (e.g., a spider, etc.):
This subclass is indented under subclass 451.1. Subject
matter wherein the support has a center uniting three or more
lateral extending members separated at an angle from one
another.
Subclass:
454.12
Having means to secure to the heating unit or a surrounding
support:
This subclass is indented under subclass 454.11. Subject
matter including means to fasten the bracket having a hub and
three or more angularly spaced horizontal projections (e.g.,
a spider, etc.) to the heating unit or to a means that
surrounds and bears up or holds up, or is a foundation or
prop for the heating unit.
Subclass:
455.11
Pan or cup (e.g., a drip pan, etc.):
This subclass is indented under subclass 451.1. Subject
matter wherein the support is a broad shallow open container
or a broad deep open container.
(1) Note. Pan or cup may have an opening therein.
Subclass:
455.12
Reflector-type:
This subclass is indented under subclass 455.11. Subject
matter including means to reflect heat radiation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
405 for an oven having a casing or support for a heating
unit including heat energy reflecting or directing means.
SEE OR SEARCH CLASS:
392, Electric Resistance Heating Devices, subclass 422 for a
radiant heater including a reflector.
Subclass:
456.1
Ring having a flange overlying hole in a surrounding support
surface:
This subclass is indented under subclass 451.1. Subject
matter wherein the support is a band having a circumferential
projection greater than an exterior opening in a means that
surrounds and bears up or holds up, or is a foundation or
prop for the band having a circumferential projection.
Subclass:
457.1
Having direct manually actuated electrical switch:
This subclass is indented under subclass 443.1. Subject
matter including means operated by immediate personal
physical contact by a human being, usually by hand, to turn
the heating device on or off, or direct current within the
heating device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
398 for an oven with a plurality of separate heating units
selectively energized.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, for generic
circuit maker and breaker structure.
307, Electrical Transmission or Interconnection Systems, 112
for a residual switching system.
Subclass:
458.1
Having electrical connection:
This subclass is indented under subclass 443.1. Subject
matter including a link between electrically conducting
contacting means that allows relative movement of the link
without coming apart or permits the link to be repeatedly
made or broken.
SEE OR SEARCH THIS CLASS, SUBCLASS:
541 for a heating unit structure with terminal or connector
means (e.g., to external circuit means).
542 for a heating unit structure with resistive-element
attaching, securing, or electrical insulation means.
Subclass:
459.1
Receptacle (e.g., socket, an insulator block, a terminal
block, etc.):
This subclass is indented under subclass 458.1. Subject
matter wherein the electrical connection is a female
electrical fitting containing the electrically conducting
contacting means intended for the electrically conducting
contacting projection of a plug.
Subclass:
460.1
Heating element gapped from underside of the exposed
horizontal support surface (e.g., ceramic plate, radiation
type, etc.):
This subclass is indented under subclass 443.1. Subject
matter wherein the means to convert electrical energy into
radiant heat is spaced from a surface lying underneath the
exposed horizontal planar support surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
538 for a heating unit structure.
SEE OR SEARCH CLASS:
392, Electric Resistance Heating Devices, subclass 418 for a
radiant heater including a workpiece support.
Subclass:
461.1
Support for the heating element:
This subclass is indented under subclass 460.1. Subject
matter including means to bear up or hold up, or perform the
function of a foundation or prop for the heating element.
SEE OR SEARCH CLASS:
338, Electrical Resistors, 306 for a support base extending
along the path of an electrical resistor or subclasses 315+
for an electrical resistor mounting or supporting means.
Subclass:
462.1
Plural heating elements:
This subclass is indented under subclass 460.1. Subject
matter including two or more heating elements.
SEE OR SEARCH THIS CLASS, SUBCLASS:
395 for an oven with a plurality of separate heating units.
SEE OR SEARCH CLASS:
338, Electrical Resistors, subclass 295 for plural
resistance elements connected by a jumper or spacer where the
heat produced is incidental or undesired.
Subclass:
463.1
Formed by tubularly shaped heating unit:
This subclass is indented under subclass 443.1. Subject
matter wherein the exposed horizontal planar support surface
is constructed by means supporting a heating element in an
operative position and fashioned into a tube-like
configuration.
SEE OR SEARCH THIS CLASS, SUBCLASS:
544 for a heating unit structure with resistive-element
embedded within or completely surrounded by core, sheath, or
support means.
546 for a heating unit structure having a core, sheath, or
support means for the heating element.
SEE OR SEARCH CLASS:
338, Electrical Resistors, 226 for an encased, embedded, or
housed electrical resistor.
Subclass:
464.1
Having plural tubular heating units:
This subclass is indented under subclass 463.1. Subject
matter including two or more tubular heating units.
SEE OR SEARCH THIS CLASS, SUBCLASS:
395 for an oven with a plurality of separate heating units.
Subclass:
465.1
Heating element contacting planar underside of the exposed
horizontal planar support surface (e.g., sheet metal, etc.):
This subclass is indented under subclass 443.1. Subject
matter wherein the means to convert electrical energy into
thermal energy is attached to a flat surface underneath the
exposed horizontal planar support surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
538 for a heating unit structure.
Subclass:
466.1
Foil or film-type of heating element:
This subclass is indented under subclass 465.1. Subject
matter wherein the heating element is a very thin piece of
material, covering, coating, or layer.
(1) Note. The foil or film can be sheet metal, lamina,
plate, or scale.
Subclass:
467.1
Support for the heating element:
This subclass is indented under subclass 465.1. Subject
matter including means to bear up or hold up, or perform the
function of a foundation or prop for the heating element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
542 for a heating unit structure with resistive-element
attaching, securing, or electrical insulation means.
SEE OR SEARCH CLASS:
338, Electrical Resistors, 306 for a support base extending
along the path of an electrical resistor or subclasses 315+
for an electrical resistor mounting or supporting means.
Subclass:
468.1
Heating element is embedded in the exposed horizontal planar
support surface:
This subclass is indented under subclass 443.1. Subject
matter wherein the means to convert electrical energy into
thermal energy is implanted within the exposed horizontal
planar support surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
538 for a heating unit structure.
SEE OR SEARCH CLASS:
338, Electrical Resistors, 226 for an encased, embedded, or
housed electrical resistor.
Subclass:
468.2
Heating element is in a groove formed on underside of the
exposed horizontal planar support surface (e.g., cast metal
plate, etc.):
This subclass is indented under subclass 443.1. Subject
matter wherein the means to convert electrical energy into
thermal energy is in a channel constructed in a surface
underneath the exposed horizontal planar support surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
538 for a heating unit structure.
SEE OR SEARCH CLASS:
338, Electrical Resistors, 315 for an electrical resistor
mounting or supporting means.
Subclass:
469
This subclass is indented under subclass 385. Apparatus
comprising the combination of at least one heating device,
under the class definition, combined with cylindrical or
roller means whereby a material may be heated while passing
over or around the roller means.
(1) Note. Class 219 is the generic class for heating rolls
combined with electric heating devices and whose function is
strictly that of heating a material passing over or around
the heated roll surface. Other heated rolls forming an
element of a larger combination or machine specifically
classified elsewhere in an other art class will be found in
the other art class; for instance, heated rolls forming an
element of a heating or drying assembly will be found in
Class 34, Drying and Gas or Vapor Contact With Solids, and
heated rolls utilized as ironing or pressing means are found
in Class 38, Textiles: Ironing or Smoothing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
244 for heaters combined with a rotary pressure application
means.
SEE OR SEARCH CLASS:
38, Textiles: Ironing or Smoothing, 44 for roller presser
smoothing machines, and subclasses 100+ for roller pressers,
per se. See also (1) Note, above.
Subclass:
470
This subclass is indented under subclass 469. Subject matter
including at least a plurality of heating units. The heating
units may be contained in or associated with a single roller
or may be distributed among a plurality of rollers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
476 for plural separate and distinct heating devices under
the class definition in general.
SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids, 113 for
plural rolls in which the material to be dried is external of
the roll structure.
38, Textiles: Ironing or Smoothing, 49 for smoothing
apparatus comprising plural cooperating rolls and subclass
101 for plural roller presser, per se.
72, Metal Deforming, 200 for metal rolling apparatus with
means for heating or cooling the rolls.
118, Coating Apparatus, subclass 60 for coating apparatus
utilizing heated roll means for heat exchange and which may
include plural rolls or plural heater.
165, Heat Exchange, 89 for rotary drum heating surfaces.
Subclass:
471
This subclass is indented under subclass 469. Subject matter
including significant details of means whereby an electrical
connection is completed between the heating element, or
elements, of the device and an external source of current.
SEE OR SEARCH THIS CLASS, SUBCLASS:
507 for heating devices of general utility under the class
definition with significant external circuit completion or
disconnection means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses for the structure of electric switches.
307, Electrical Transmission or Interconnection Systems,
appropriate subclasses especially 112 for switching
systems.
Subclass:
472
This subclass is indented under subclass 200. Subject matter
including a single heating device with means whereby the
structure which comprises the heating device, as a whole or
in part, is adapted to perform both a heating function and a
nonheating function, to perform plural separate heating
functions or to perform the heating function in a different
mode. Some examples of the patents classified here are;
heater-fan, heater-light, convection type radiant type or
radiant-hot plate, to name a few.
SEE OR SEARCH THIS CLASS, SUBCLASS:
231 for convertible heated type hand held instruments.
249 for convertible soleplate type heater devices.
285 for fluid heaters operating in different modes.
350 for convertible radiant heaters.
371 for convertible convection heaters.
421 for heaters for deep well type enclosures adapted for
conversion to hot plates.
452.13 for an exposed horizontal planar support surface for
material to be heated (e.g., hot plate, etc.) having a frame,
casing, or housing for a heating unit (e.g., range top, stove
top, countertop, etc.) that is convertible.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 340 for
convertible cooking devices and subclass 357 for a cooking
device combined with means performing another function.
165, Heat Exchange, 58 for apparatus adapted for both
heating and cooling and subclass 137 for convertible heat
exchange devices.
Subclass:
473
This subclass is indented under subclass 472. Subject matter
including means whereby the heating device structure may be
caused to function as a nonheating device. An example of the
structure to be found in this subclass is a convection heater
convertible to a fan.
SEE OR SEARCH CLASS:
165, Heat Exchange, subclass 137 for convertible heating
and/or cooling devices.
Subclass:
474
This subclass is indented under subclass 472. Subject matter
including means whereby the heating device may be converted
to or caused to function as a diverse type electrical heating
device. One example of the structure classifiable here is a
heating device which functions in one mode as a hot plate
type heater and alternately as a convection heater.
SEE OR SEARCH THIS CLASS, SUBCLASS:
279 for an electric heater combined with a nonelectric
heater.
Subclass:
475
This subclass is indented under subclass 200. Subject matter
including a single heating device of the kind falling within
the subclass definition with means whereby the heat energy
generated in the device may be applied to more than a single
space or object. For example a range type device having both
hot plate type and oven type article support means jointly
heated by a single heating unit is exemplary of the type
devices classified herein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
392 394 and 395, for heating devices under the class
definition with plural ovens, single oven with plural
compartments or for ovens combined with other heat
utilization means.
428 for heaters in general comprising plural enclosures.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 339 for
cooking apparatus comprising diverse type cookers.
Subclass:
476
This subclass is indented under subclass 200. Subject matter
including or comprising at least two or more separate and
distinct heating devices under the class definition, each of
which comprises a complete heating device capable of
performing its function if utilized alone and not
specifically provided for above in this class or classifiable
elsewhere in another art class.
(1) Note. The heating devices may all be of the same type
or each of a different type provided that each must fall
within the class definition. For a heating device of the
Class 219 type combined with diverse art type nonelectric
(e.g. gas) heating means see subclass 283.
SEE OR SEARCH THIS CLASS, SUBCLASS:
282 for liquid heaters in general with plural separate
heaters.
314 for plural interconnected container liquid heaters.
394 for plural ovens.
428 for plural separately heated enclosures.
474 for electric heater of one type convertible to another
type, or simultaneously operable as at least two different
types of heater.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 339 for
cooking devices of diverse type which may utilize plural
heaters.
126, Stoves and Furnaces, appropriate subclass 4 for cooking
stove combined with heating means and subclasses 99+ for hot
air furnaces combined with cooking stove, etc.
Subclass:
477
This subclass is indented under subclass 476. Subject matter
wherein the plurality of separate heating devices each
depends, for its activation and current supply, upon a common
source of power or wherein the current traversing each of the
devices is regulated or controlled by a common means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
483 for a plurality of heater resistance elements under the
class definition deriving power from, or being controlled by,
a single means and where the power supply or control means is
claimed specifically and in detail with the resistance
elements broadly claimed.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 11
for power supply or control system in general for supplying
plural loads.
Subclass:
478
This subclass is indented under subclass 476. Subject matter
wherein the plural heating devices share a common housing,
casing or support means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
537 for plural heating units combined with a single housing,
casing or support.
SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids, subclass 209
for drying apparatus comprising houses, kilns or containers
combined with plural treating units or compartments.
Subclass:
479
This subclass is indented under subclass 476. Subject matter
wherein the plural heating devices comprise two or more
diverse types as set out above in this class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
283 for liquid heater and associated nonliquid heater.
474 for plural function or convertible heaters which may
comprise plural diverse electric heating devices.
484 for power supply, voltage or current regulation or
current control means controlling diverse heating elements
under the class definition and each having different
resistance characteristics.
Subclass:
480
This subclass is indented under subclass 476. Subject matter
including means whereby the separate heating devices may be
selectively activated either automatically or at the will of
an operator.
SEE OR SEARCH THIS CLASS, SUBCLASS:
486 for means for selectively or sequentially controlling
plural heater resistance elements in general.
Subclass:
481
This subclass is indented under subclass 200. Subject matter
including structural details of heating devices under the
class definition combined with protective means whereby the
heating unit is prevented from overheating or is protected
against damage due to external sources and wherein the
heating device structure is not classifiable elsewhere above
in the Class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
322 for liquid heaters with protective means for the
heater.
363 for fluid heaters of the convection type with protective
means for the heater.
423 for crucible or furnace type apparatus with protective
means for the heating unit or switch.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 326
for systems having self-protective, safety or limit control
features and subclasses 116+ for condition responsive
switches.
313, Electric Lamp and Discharge Devices, 11 for discharge
devices combined with temperature modification means.
338, Electrical Resistors, appropriate subclasses for
electrical resistors, per se, with cooling or other
protective means.
361, Electricity: Electrical Systems and Devices, 1 for
power systems with safety and protection devices.
Subclass:
482
This subclass is indented under subclass 200. Devices
combined with an external source of power or current and
wherein the significantly recited subject matter includes
structure whereby the heating current applied to the heating
device or devices from the external source is controlled or
regulated as to level or amplitude, length of time applied,
sequence of time applied, voltage level at which applied or
in proper phase.
SEE OR SEARCH THIS CLASS, SUBCLASS:
108 130.1+, 240+, 250+, 262+, 272, 327, 358, 379, 419, 448+,
and 650, for other voltage or current regulation or control
means applied to special heating devices under the class
definition.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 325 for electric
cooking devices with automatic control means.
165, Heat Exchange, 200 for automatic control systems
combined with heating and cooling systems.
237, Heating Systems, 2 for automatic control devices for
heating systems.
307, Electrical Transmission or Interconnection Systems,
appropriate subclasses, especially subclass 17 for
transformer connections, 31+ for plural load circuits with
control or current or power, 52+ for plural supply circuits
or sources with load current control, 64+ for emergency or
stand-by source and 149+ for miscellaneous systems.
310, Electrical Generator or Motor Structure, appropriate
subclasses for the structure of electrical generators.
322, Electricity: Single Generator Systems, appropriate
subclasses for dynamoelectric or nonmagnetic single generator
systems.
323, Electricity: Power Supply or Regulation Systems,
appropriate subclasses for current, voltage or phase control
systems in general.
338, Electrical Resistors, 68 for electrical resistors, per
se, with mechanical means for varying the resistance value.
361, Electricity: Electrical Systems and Devices, 139 for
electric circuits for relays and electromagnets.
363, Electric Power Conversion Systems, appropriate
subclasses for current, phase or frequency conversion
systems.
429, Chemistry: Electrical Current Producing Apparatus,
Product, and Process, appropriate subclasses for battery
construction.
Subclass:
483
This subclass is indented under subclass 482. Subject matter
including means whereby a plurality of separate and distinct
resistance heating units or elements, within or forming a
subcombination of a single heating device, may be activated
either as a unit or selectively, or whereby the current
applied to each selectively or to the whole may be regulated
between predetermined values or for predetermined intervals
of time.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 11
for systems of electrical supply to plural loads, especially
subclasses 31+ and 38+ for control of current or power and
for selectively connected or controlled loads, respectively.
Subclass:
484
This subclass is indented under subclass 483. Subject matter
wherein the plural separate resistance elements have diverse
resistance characteristics or values.
SEE OR SEARCH THIS CLASS, SUBCLASS:
539 for significant heating unit structure under the class
definition and comprising plural distinct resistive heating
elements, and subclass 552 for heating elements, per se,
consisting of plural sections.
Subclass:
485
This subclass is indented under subclass 483. Subject matter
including means whereby the total current traversing the
plurality of resistance elements at any time is maintained at
or below a predetermined value or whereby the total power
consumed by the plurality of heating elements is maintained
constant.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 33
for load current control systems for maintaining a constant
load or current in plural loads.
Subclass:
486
This subclass is indented under subclass 483. Subject matter
comprising means whereby the plurality of resistance heating
elements may be selectively activated alternately one at a
time, in a predetermined group of two or more, or
consecutively one after the other in an order determined by
the internal conditions prevailing in the heating device of
which they form a part.
SEE OR SEARCH THIS CLASS, SUBCLASS:
401 for ovens with plural selectively energizable heater
units.
446 for planar surface heaters with selectively activated
heating units.
480 for plural separate heating devices selectively
activated.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 29 and 38+ for systems involving selectively
connected or controlled load circuits.
Subclass:
487
This subclass is indented under subclass 486. Subject matter
including means whereby some condition of the heating device
is indicated either visually or audibly.
SEE OR SEARCH THIS CLASS, SUBCLASS:
108 for pressure type electric metal welding systems with
indicator.
248 for electric flatiron type devices with condition
responsive indicator.
269 for resistive element igniters with indicating means.
453 for planar surface heater with circuit condition
indicator.
506 for automatically regulated heater systems in general
with signal or indication means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 167
for switch condition indicators.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses for thermally actuated
switches with indicator means.
340, Communications: Electrical, 500 for electrical signals
automatically responsive to a condition particularly subclass
523 for signalling means automatically responsive to the
sequence of operation of plural devices.
Subclass:
488
This subclass is indented under subclass 482. Subject matter
including means whereby a supply voltage of a first value may
be maintained within given limits, may be converted to a
second different value or means whereby a heating device
adapted to operate on an alternating voltage may be adapted
to operate on a D.C. voltage or vice versa.
SEE OR SEARCH THIS CLASS, SUBCLASS:
490 for automatic voltage or current regulating means for
electric heaters in general.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
appropriate subclasses for current or voltage limiters.
363, Electric Power Conversion Systems, appropriate subclass
for electric power, voltage, phase or frequency conversion
systems.
Subclass:
489
This subclass is indented under subclass 482. Subject matter
consisting of at least one means operative by hand at the
will of an operator and one or more additional self-acting
means operative upon the occurrence of a predetermined
condition or set of conditions within the heating device or
heated material.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 234-298 for output responsive regulators.
Subclass:
490
This subclass is indented under subclass 482. Subject matter
consisting of self-actuating means responsive to one or more
predetermined conditions or states occurring either within
the heating device, the heated material or both.
SEE OR SEARCH THIS CLASS, SUBCLASS:
110 for pressure welding systems controlled in response to
current, voltage or temperature.
509 for automatically operated heater connection and
disconnection means.
608 and 650, for induction heater systems with automatic
control.
702 for microwave heating system with automatic control.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 325 for automatic
control means for cooking devices.
165, Heat Exchange, 200 for automatic control means for
heating or cooling devices.
237, Heating Systems, 2 for systems with automatic control
means.
307, Electrical Transmission or Interconnection Systems,
appropriate subclasses, especially 31 and 52+.
323, Electricity: Power Supply or Regulation Systems,
subclasses 234-298 for output responsive regulators.
363, Electric Power Conversion Systems, 74 for current
conversion systems with automatic voltage or current
magnitude control.
Subclass:
491
This subclass is indented under subclass 490. Subject matter
wherein the automatic control structure includes at least two
or more means each of which operates independently and on a
different principle. An example of the devices to be found
in this subclass comprises mechanical timing means and
thermally responsive thermostatic means.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 328 and 333
for automatic control of heating and cooking apparatus by
time and heat responsive means.
323, Electricity: Power Supply or Regulation Systems.
338, Electrical Resistors, subclass 14 for resistors in
general responsive to plural conditions.
Subclass:
492
This subclass is indented under subclass 490. Subject matter
comprising means whereby the heating element or elements of a
heating device may be energized at a particular predetermined
time, or for a given interval or time or may be cyclically
energized and deenergized and at regular predetermined
intervals.
SEE OR SEARCH THIS CLASS, SUBCLASS:
115 for synchronously switched resistance welding systems.
334 for liquid heaters with timing means for power supply or
current control means.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 327 and 332+ for
automatic control means for cooking devices comprising timing
means.
307, Electrical Transmission or Interconnection Systems
involving make or break at a predetermined time in a cycle,
and 141 for electrically timed switching systems.
323, Electricity: Power Supply or Regulation Systems.
361, Electricity: Electrical Systems and Devices, 195 for
relay circuits with time delay means.
Subclass:
493
This subclass is indented under subclass 492. Subject matter
wherein the timing or cycling structure comprises
electro-mechanical means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 90
for the structure of periodically operated electromagnetic
switches.
307, Electrical Transmission or Interconnection Systems,
subclass 97 for intermittent regulatory interruption of a
system in response to a condition and subclass 132 for
repetitive make and break switching systems.
323, Electricity: Power Supply or Regulation Systems,
subclasses 201-204 for control systems utilizing
dynamoelectric machines.
Subclass:
494
This subclass is indented under subclass 490. Subject matter
including at least one means which is responsive to the
temperature of the heated material, the heating element
itself, or the surrounding atmosphere, by means of which the
amount of current traversing the heating element or elements
is controlled.
SEE OR SEARCH THIS CLASS, SUBCLASS:
110 for resistance type metal welding control systems
responsive to temperature.
241 for heated tip hand tools with thermal control means.
251 for electric flatiron type heaters with thermally
controlled current supply.
328 for liquid heaters with thermally controlled current
supply.
413 for ovens with current supply responsive to condition of
heating area.
449 for planar surface heaters with thermally controlled
current supply.
505 for regulators utilizing nonlinear or negative
temperature coefficient resistance means.
510 for heaters in general with thermally controlled
switching means.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 328, 329 and
333 for automatic control means for cooking devices employing
thermal responsive means.
165, Heat Exchange, 281 ; 287+ for heat exchange systems with
temperature responsive automatic control devices.
323, Electricity: Power Supply or Regulation Systems.
Subclass:
495
This subclass is indented under subclass 494. Subject matter
compromising or including magnetic apparatus which is adapted
to change its permeability, (magnetic characteristics with
change of temperature).
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclass 306
for the structure of pyromagnetic devices in general.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, subclass 146 for electromagnetically
actuated switches utilizing thermomagnetic devices.
361, Electricity: Electrical Systems and Devices, 161 for
electromagnetic control circuits including a thermal device,
and subclass 211 includes control circuits for thermal
relays.
Subclass:
496
This subclass is indented under subclass 490. Subject matter
including means responsive to the pressure within the space
or material heated or within the control means itself, due to
a change of condition therein, whereby the current supplied
to the heating device is regulated, or controlled.
SEE OR SEARCH THIS CLASS, SUBCLASS:
287 for liquid in circuit heaters with resistance path
automatically responsive to pressure.
332 for liquid heaters with current control means responsive
to hydrostatic or vapor pressure.
333 for liquid heaters with current control responsive to
liquid level.
SEE OR SEARCH CLASS:
165, Heat Exchange, 281 for pressure responsive control
devices for heating or cooling systems.
200, Electricity: Circuit Makers and Breakers, 81 for fluid
pressure operated electric switch structures.
307, Electrical Transmission or Interconnection Systems,
subclass 118 for fluid pressure controlled switching system
and subclass 144 for fluid pressure actuated switches.
Subclass:
497
This subclass is indented under subclass 490. Subject matter
including means for deriving at least one first voltage, the
magnitude of which is dependent upon some variable of a
heated space or material, means for producing a second
reference voltage representative of a desirable condition,
means for comparing or combining the two derived voltages and
further means whereby the condition of a heating device is
adjusted by application of the voltage resulting from the
combination or comparison of the two or more derived
voltages.
SEE OR SEARCH THIS CLASS, SUBCLASS:
494 for heaters wherein the voltage or current combined or
compared with the standard is derived from the temperature of
the heater.
496 for heater control systems wherein the variable voltage
or current compared or combined with the standard is derived
from changes in pressure of the heated medium or structure.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 234-298, which regulators or systems may be
controlled by comparing a change in the electrical condition
controlled with some standard or pre-set voltage or current.
Subclass:
498
This subclass is indented under subclass 497. Subject matter
including follow-up or servo-motor means whereby the current
applied to the heating device is responsive to a reference
voltage as derived by the means of that subclass.
SEE OR SEARCH CLASS:
236, Automatic Temperature and Humidity Regulation,
particularly 74 for electric motor servo systems utilizing
automatic temperature or humidity control systems.
318, Electricity: Motive Power Systems, 609 for "Reset"
position servomechanisms which may be used for temperature
control, and subclass 641, for position servomechanisms in
which the error detector is a temperature measuring
instrument.
Subclass:
499
This subclass is indented under subclass 497. Subject matter
wherein the voltage or current measuring or comparison
structure includes or comprises resistance or capacitance
bridge means.
SEE OR SEARCH CLASS:
318, Electricity: Motive Power Systems, 663, position
servo-mechanisms utilizing potentiometers as position
measuring instruments, the potentiometers may take the form
of a wheatstone bridge circuitry.
Subclass:
500
This subclass is indented under subclass 490. Subject matter
wherein the condition responsive regulation means claimed
includes electron or glow discharge tube means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
501 for condition responsive regulators utilizing
semiconductor means (e.g., transistors).
SEE OR SEARCH CLASS:
315, Electric Lamp and Discharge Devices: Systems, 149 for
gaseous space discharge devices responsive to or controlled
by radiant energy.
323, Electricity: Power Supply or Regulation Systems,
subclass 291 for automatic voltage control systems with
electric space discharge devices.
361, Electricity: Electrical Systems and Devices, 139 for
control circuits for electromagnets and relays including tube
means.
Subclass:
501
This subclass is indented under subclass 490. Subject matter
wherein the regulating or control structure includes devices
comprised of semiconductor material such as transistors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
500 for heater regulators utilizing electron tubes or
gaseous discharge tubes.
505 for heater regulator utilizing nonlinear or negative
temperature coefficient resistance resistors.
SEE OR SEARCH CLASS:
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), subclasses 53-56, 108, 414, and 467-470
for such as temperature responsive devices, per se.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, appropriate subclasses for
miscellaneous circuits utilizing a transistor.
Subclass:
502
This subclass is indented under subclass 490. Subject matter
wherein the automatic regulating or control means includes
photoelectric or other light responsive means.
SEE OR SEARCH CLASS:
250, Radiant Energy, subclass 336.1 for methods and
apparatus involving the detection of invisible radiant energy
by electric signalling means and subclass 472.1 for methods
and apparatus to detect invisible radiant energy nonelectric
signalling devices and subclasses 200+ for photo-cell
circuits and apparatus in general.
315, Electric Lamp and Discharge Devices: Systems, 149 for
gas tube or electric lamp systems controlled by radiant
energy.
323, Electricity: Power Supply or Regulation Systems,
subclass 221 for automatic control systems comprising
photosensitive controlled electron tube systems.
338, Electrical Resistors, 15 for resistance devices whose
resistance value is responsive to light means.
361, Electricity: Electrical Systems and Devices, 173 for
electric circuits for relays and electromagnetic utilizing
photo-sensitive devices.
Subclass:
503
This subclass is indented under subclass 490. Subject matter
including apparatus whereby the power supply for, or the
voltage or current applied to a heating device is controlled
through the action of inductive reactance of an inductive
reactor means (e.g., saturable reactor).
SEE OR SEARCH THIS CLASS, SUBCLASS:
112 for resistance welder current supply systems with stored
energy discharge means, (e.g., inductor).
116 for resistance welder current supply systems with
transformer.
495 for heaters in general with thermomagnetic means to
automatically regulate the power, voltage or current in
response to temperature.
514 for heaters in general with thermally controlled
solenoid in the current supply switching circuit.
519 for heaters in general with automatically controlled
electromagnetic relay means.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 401
for nonlinear (saturable) reactor systems.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 209 for work magnet and electromagnetic
structure, per se.
336, Inductor Devices, appropriate subclasses for the
structure self and/or mutual inductive devices in general.
361, Electricity: Electrical Systems and Devices, 139 for
control circuits for electromagnetic devices.
Subclass:
504
This subclass is indented under subclass 490. Subject matter
wherein the automatic regulating or control means includes a
resistance device, or devices, whose resistance value or
characteristics change or are changed in some way with a
change in the condition of the heater or its environment.
SEE OR SEARCH THIS CLASS, SUBCLASS:
483 for heaters wherein the current or voltage is controlled
by controlling or regulating plural distinct resistance
heating elements.
SEE OR SEARCH CLASS:
338, Electrical Resistors, 13 for resistors, per se, whose
resistive value is responsive to a condition.
Subclass:
505
This subclass is indented under subclass 504. Subject matter
wherein the structure includes a nonlinear or negative
temperature coefficient of resistance resistor device or
devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
494 for heater control systems utilizing thermally
responsive resistors, for example.
501 for heater control systems utilizing semiconductor
means, e.g., transistor.
SEE OR SEARCH CLASS:
338, Electrical Resistors, 22 for current or voltage
responsive thermistors, per se, and subclasses 25+ for
ambient temperature responsive or adjustable resistors.
361, Electricity: Electrical Systems and Devices, 161 for
control circuits for electromagnetic devices including a
thermal device, e.g., thermistors.
Subclass:
506
This subclass is indented under subclass 490. Subject matter
including a signaling or indicating means whereby the
electrical condition of the power supply and voltage or
current regulation or control apparatus or the amount of
current traversing the controlled heating device is readily
discernable and which is peculiarly adapted for use with
heating devices under the class definition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
109 for resistance welder systems with indicator.
248 for electric flatiron type devices with condition
indicator.
269 for resistive igniters with indicating means.
453 for planar surface heaters with circuit condition
indicator.
487 for selectively or sequentially controlled resistance
heating elements with indicator.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 342 for cooking
apparatus with signal, indicator or testing means.
116, Signal and Indicators, 216 for thermal indicators or
signals.
122, Liquid Heaters and Vaporizers, subclass 504.2 for
safety devices comprising alarms or indicators.
126, Stoves and Furnaces, for general heat applying apparatus
having other than electrical heating means, subclass 388.1
for a liquid heater having an open-top vessel that may
include a lid and an indicator or signaler feature.
236, Automatic Temperature and Humidity Regulation, subclass
94 for thermostatic control devices with indicators or alarm
means.
324, Electricity: Measuring and Testing, 76.11 for devices
for measuring, testing or sensing electricity, per se.
340, Communications: Electrical, 635 for electrical
apparatus condition responsive, signals and alarms in
general.
Subclass:
507
This subclass is indented under subclass 200. Devices
including significant structure whereby the heating unit or
units of a heating device, are adapted to be connected to or
disconnected from an external source of electrical energy.
(1) Note. For heating devices, such as are classified in
this class, combined with means for controlling the level or
amplitude of heating current or voltage between certain
limits or for a certain interval of time the search should be
in subclasses 482+ above, or in the particular subclass
relating to specific type heating devices elsewhere in the
class.
(2) Note. Heating devices directed to particular types of
heaters set out elsewhere in the schedule and including
significant circuit connection or disconnection means are
listed under "Search This Class, Subclass" below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
111 for resistance welding systems with repeat or
interrupted current systems.
115 for resistance welders with means for synchronously
switching the current on or off.
240 for hand held heating tools with current switching
means.
250 for electric flatiron type devices with current control
means.
256 for electric flatiron type devices with current
switching means.
262 for resistive element igniters with switching means.
272 for vaporizer with external circuit switching means.
295 for liquid in circuit heaters with switching means.
308 for forced circulation liquid heaters with switching
means.
327 for liquid heaters with current control means.
337 for liquid heaters with external circuit switching
means.
356 for radiant type fluid heaters with external circuit
switching means.
364 for convection type fluid heaters with external circuit
switching means.
379 for fluid heater with external circuit switching means.
419 for deepwell heaters with external circuit switching
means.
451 for planar surface heaters with external circuit
switching means.
482 see (1) Note, above.
541 for heater unit structure with connector means.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 112
for switching systems in general.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses.
338, Electrical Resistors, for subclass 215 for resistance
devices, per se, combined with a switch.
361, Electricity: Electrical Systems and Devices, 139 for
control circuits for electromagnetic devices.
439, Electrical Connectors, appropriate subclass for
electrical quid detachable connector structure.
Subclass:
508
This subclass is indented under subclass 507. Subject matter
comprising two or more circuit connecting and disconnecting
means. The claimed means may consist of a single main switch
relay, for example, which in turn is controlled by the
condition of a plurality of secondary means which operate in
sequence periodically or selectively.
SEE OR SEARCH THIS CLASS, SUBCLASS:
398 for ovens with plural heating units which are
selectively energizable.
446 for planar type surface heaters with plural selectively
controlled heater units.
480 for plural separate heating devices which may be
selectively activated.
486 for selectively controlled system of plural resistance
elements in general.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 115 for switching systems utilizing plural
selectively activated switches.
Subclass:
509
This subclass is indented under subclass 507. Subject matter
wherein the current connection or disconnection function is
automatically accomplished as a result of some existing
condition within the heated medium or of the heating element
itself.
SEE OR SEARCH THIS CLASS, SUBCLASS:
257 for automatically controlled electric flatiron type
device.
263 for automatically controlled resistive type igniter.
309 for forced flow liquid heater with flow responsive
switching means.
332 for liquid heater with vapor pressure responsive current
control means.
333 for liquid heater with liquid level current control
means.
452 for planar surface heater with automatically operated
switch means.
490 for heaters in general with automatic current regulating
means.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 116
for condition responsive switching systems.
Subclass:
510
This subclass is indented under subclass 509. Subject matter
wherein the current connection or disconnection means is
responsive to the internal temperature of the heating
element, that prevailing within the heated medium or both.
SEE OR SEARCH THIS CLASS, SUBCLASS:
241 for hand held heated tool with thermal control means.
251 for electric flatiron type device with thermally
responsive control means.
264 for resistive element igniter with thermally controlled
switch.
328 for liquid heaters with current control means responsive
to liquid temperature.
413 for oven with current control responsive to oven
condition (e.g., temperature).
494 for heaters in general with current regulator responsive
to thermal condition.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 117 for heat responsive electric switch systems.
337, Electricity: Electrothermally or Thermally Actuated
Switches, 298 for the structure of thermally actuated
switches.
361, Electricity: Electrical Systems and Devices, 161 for
relay control circuits including a thermal device.
Subclass:
511
This subclass is indented under subclass 510. Subject matter
including means responsive to the temperature of the heated
medium with auxiliary means whereby additional heat is
provided for at least one of the temperature responsive
means. The auxiliary heating means does not constitute a part
of the primary heat source of the heating device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
209 above, for heating devices under the class definition
combined with other electrical devices.
SEE OR SEARCH CLASS:
337, Electricity: Electrothermally or Thermally Actuated
Switches, 14 for thermal current actuated switches with
external heater means.
Subclass:
512
This subclass is indented under subclass 510. Subject matter
wherein the particular thermally responsive current
connection or disconnection structure comprises or includes
linearly expansible metal bar means whereby the expansion or
contraction of the bar initiates or controls the opening or
closing of a circuit to the heating element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
253 for electric flatiron type device with thermally
responsive expansible bar current control means.
265 for resistive element igniter with bimetallic thermally
responsive current switching means.
SEE OR SEARCH CLASS:
73, Measuring and Testing, 363 for expanding solid type
thermometers.
236, Automatic Temperature and Humidity Regulation, subclass
96 for flue attached thermostats of the expanding solid
type, and subclasses 101+ for other expanding solid type.
337, Electricity: Electrothermally or Thermally Actuated
Switches, 333 and 382+ for thermally actuated switches
employing expansible solid actuating means.
Subclass:
513
This subclass is indented under subclass 510. Subject matter
wherein the particular thermally responsive current
connection or disconnection structure comprises expansible
fluid whereby the expansion or contraction of the fluid
initiates or controls a switching action.
SEE OR SEARCH THIS CLASS, SUBCLASS:
253 for electric flatiron type device with current control
responsive to thermally expansible liquid means.
SEE OR SEARCH CLASS:
73, Measuring and Testing, 368 for expanding fluid type
thermometers.
236, Automatic Temperature and Humidity Regulation, subclass
95 for flue attached thermostats which are of the expanding
fluid type and subclasses 99+ for other expanding liquid
type.
337, Electricity: Electrothermally or Thermally Actuated
Switches, 114 and 306+ for switches utilizing a heat
expansible fluid.
Subclass:
514
This subclass is indented under subclass 510. Subject matter
wherein the current connection or disconnection means
includes at least one solenoid winding, controlled or
influenced by a thermal responsive means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
495 for heaters in general with thermomagnetic current
control or regulating means.
519 for heaters with automatically operated electromagnetic
relay means.
SEE OR SEARCH CLASS:
236, Automatic Temperature and Humidity Regulation, 91 for
thermostatic controls which may control solenoid means.
361, Electricity: Electrical Systems and Devices, 161 for
relay control circuits including a thermal device.
Subclass:
515
This subclass is indented under subclass 510. Subject matter
wherein the particular current connection or disconnection
means includes structure whereby the thermally responsive
element may be adjusted to operate at different degrees of
temperature.
SEE OR SEARCH THIS CLASS, SUBCLASS:
252 for electric flatiron type device with adjustable
thermally responsive current control means.
Subclass:
516
This subclass is indented under subclass 510. Subject matter
wherein the particular current connection or disconnection
means is adapted to inserted into or attached in direct heat
transfer contact with the material to be heated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
450 above for hot plate type heating devices combined with
thermostatic control devices in direct contact with a vessel
or other cooking device to be heated.
Subclass:
517
This subclass is indented under subclass 510. Subject matter
wherein the thermally responsive means comprises fusible
material. The material may be either directly in the
electrical circuit so that upon fusing it opens the circuit
directly or may comprise some securing device which upon
fusing allows a circuit completion means to open or close.
SEE OR SEARCH THIS CLASS, SUBCLASS:
253 for electric flatiron type devices with thermally
responsive fusible means in the power supply circuit.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass
61.08 for circuit breakers of the frangible or destructible
type.
337, Electricity: Electrothermally or Thermally Actuated
Switches, 142 and 401+ for electrothermal and thermally
actuated switches utilizing fusible material.
Subclass:
518
This subclass is indented under subclass 509. Subject matter
wherein the particular current connection or disconnection
means includes switch means operative by the weight of or the
placing, in a certain location, of a body to be heated.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 61.45 for
inertia and tilt type switches, especially subclass 61.59 for
article inserted type and subclass 61.83 for gravity actuated
switches. See also subclasses 85+ for weight actuated
switches.
Subclass:
519
This subclass is indented under subclass 509. Subject matter
wherein the automatically operated current connection or
disconnection structure includes electromagnetic relay
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
514 for heaters with thermally controlled solenoid means in
the switching circuit.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 87 for the
structure of electromagnetic switches.
361, Electricity: Electrical Systems and Devices, 139 for
control circuits for relays and electromagnets.
Subclass:
520
This subclass is indented under subclass 200. Subject matter
comprising the combination of a resistance heater unit with a
particular housing, casing or support means therefor.
(1) Note. In order to be classified here the heating unit
and housing, casing or support must comprise an operative
whole independent of any art device with which it may be
used. The heating unit may or may not be permanently
attached to the housing or casing as long as the two are
specifically adapted for use only with each other. Either the
heating unit or the housing may be adapted for diverse use
aside from its primary purpose, for example the heating unit
may be embedded in a glass or plastic which serves also as a
windshield as long as the claimed subject matter does not
comprise details of the windshield which makes the device
primarily a part of a vehicle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
385 for the combination of at least one heating device or
unit with a container, enclosure or support means for the
material to be heated.
SEE OR SEARCH CLASS:
338, Electrical Resistors, 226 for resistor means, per se,
which is incased, embedded or housed and subclasses 315+ for
electrical resistors, per se, combined with mounting or
support means.
Subclass:
521
This subclass is indented under subclass 520. Subject matter
wherein the significant housing, casing or support structure
includes broadly defined means whereby an object or material
to be heated is supported in heat exchange relationship to a
heating unit or units.
(1) Note. Where the material support means is specifically
defined classification is above, particularly subclasses 385+
for example, hot plate type heating devices are to be found
in subclasses 462+. The significant housing, casing, or
support means in subclasses 520+ has for its primary function
the housing or support of a heating unit with the resulting
combination being adapted for use with devices in general
under the class definition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
458 for planar heating surfaces combined with housed heater
units. See also (1) Note, above.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, appropriate subclasses
for heating means combined with a housing means specifically
adapted for use in brewing of a beverage or the cooking of
food.
338, Electrical Resistors, 226 for electrical resistors
incased, embedded or housed in which the housing may be
adapted for supporting an article to be heated.
Subclass:
522
This subclass is indented under subclass 520. Subject matter
wherein the particular housing, casing or support means
includes structure whereby the housing, casing or support is
adapted to perform a secondary function other than that of a
support or enclosure for a heating unit or units.
SEE OR SEARCH THIS CLASS, SUBCLASS:
201 for electric heating devices combined with diverse art
type device.
Subclass:
523
This subclass is indented under subclass 520. Subject matter
wherein the particular housing, casing or support means
includes particular structural features whereby the housing,
casing or support means is adapted to be insertable into and
removably retained within a space or material to be heated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
277 for subsurface (e.g., oil well) heaters.
316 for immersible liquid heaters.
381 for immersion type heaters for fluid.
403 for heating unit combined with a housing capable of
being inserted into and removed from an oven type enclosure.
415 for deep well heaters.
437 for vessel and stand immersion heater.
SEE OR SEARCH CLASS:
4, Baths, Closets, Sinks, and Spittoons, subclass 545 for
bathtub heaters.
5, Beds, subclass 284 for bed heaters.
36, Boots, Shoes, and Leggings, subclass 2.6 for boot
heaters.
175, Boring or Penetrating the Earth, 11 for boring in the
earth by directly applying heat particularly subclass 16
which provides for electrically produced heat.
338, Electrical Resistors, subclass 229 for resistors
encased in probe type casing.
405, Hydraulic and Earth Engineering, subclass 131 for
apparatus for applying heat to the earth.
Subclass:
524
This subclass is indented under subclass 520. Subject matter
wherein the particular housing, casing or support structure
consists of two or more hinged or otherwise separable
sections or compartments. The sections or compartments may
or may not be adjustable relative to each other and each
containing a separate heating unit or one or more sections of
a single unit. Heat transfer may be accomplished by
radiation, convection, conduction or a combination of one or
more of these.
SEE OR SEARCH THIS CLASS, SUBCLASS:
225 for hair heating devices with heated clamp means.
SEE OR SEARCH CLASS:
38, Textiles: Ironing or Smoothing, appropriate subclasses
for opposed heated platen, ironing machines or implements.
99, Foods and Beverages: Apparatus, 372 for waffle iron
type cooking apparatus and subclasses 385+ especially
subclasses 393+ for toaster devices with opposed heaters.
100, Presses, 92 for heated presses.
Subclass:
525
This subclass is indented under subclass 524. Subject matter
wherein the heating means consists of a plurality of heating
units or a single unit consisting of plural sections.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus subclass 374 and 389+
for cooking apparatus comprising hinged compartments, molds
or grill combined with plural heating units or elements.
Subclass:
526
This subclass is indented under subclass 520. Subject matter
wherein the significant housing, casing or support structure
includes means whereby the housing, casing or support may be
secured or attached to an object or surface to be heated.
The transfer of heat energy may be of convection, conduction
or radiation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
201 for electric heaters combined with diverse type art
device.
Subclass:
527
This subclass is indented under subclass 526. Subject matter
wherein the significant casing or support structure includes
straps or other devices whereby it may be attached to or
supported by, some portion of an animal body, (e.g., human
body).
SEE OR SEARCH THIS CLASS, SUBCLASS:
211 for electric heaters associated with wearing apparel.
227 for hand held electrically heated tools or instruments.
SEE OR SEARCH CLASS:
224, Package and Article Carriers, appropriate subclasses for
body and belt attached article carriers in general.
607, Surgery: Light, Thermal, and Electrical Application,
subclass 149 for devices for the application of heat or
electricity to the human body and adapted for body
attachments.
Subclass:
528
This subclass is indented under subclass 520. Subject matter
wherein the significant housing, casing or support structure
is pliable or capable of being flexed or bent without
permanent distortion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
456 for heater with a support adjustable to the shape of
material to be heated.
535 for heating unit specially formed to fit material to be
heated.
549 for heating element support of flexible material.
SEE OR SEARCH CLASS:
138, Pipes and Tubular Conduits, subclass 35 for portable
pipe heaters.
338, Electrical Resistors, 210 for flexible or folding
resistors and subclass 259 for resistors, per se, combined
with a round, braided or woven casing or housing.
607, Surgery: Light, Thermal, and Electrical Application,
subclass 149 for heating devices for the human body,
particularly for bands and belts.
Subclass:
529
This subclass is indented under subclass 528. Subject matter
wherein the significant container or support structure
consists of cloth or other fabric material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
211 for electrical heater combined with wearing apparel.
212 for electrical heater combined with bed covering (e.g.,
blanket).
545 for resistive element interwoven with fabric support.
SEE OR SEARCH CLASS:
5, Beds, 482 for structural details of bed clothing which
may include electric heating means and subclass 423 for
heated mattresses or cushions.
338, Electrical Resistors, subclass 208 for mesh, woven or
braided resistance element.
607, Surgery: Light, Thermal, and Electrical Application,
subclass 96 for thermal applicators in general for
therapeutic purposes.
Subclass:
530
This subclass is indented under subclass 520. Subject matter
wherein the significant housing, casing or support structure
includes means whereby heat energy is stored or is
transferred to a material or object to be heated. The
transfer of the heat energy may be conduction or radiation,
as by a reflector, or convection.
SEE OR SEARCH THIS CLASS, SUBCLASS:
258 for sole plate pressure application heating devices (sad
irons) with heat storage or transfer means.
276 for vaporizers with heat transfer means.
302 for forced circulation heater with heat storage.
325 for liquid heaters with heat storage or exchange means.
341 for radiant fluid heaters with heat storage or transfer
means.
365 for convection heaters with heat transfer or storage
means.
378 for fluid heaters with heat storage means.
399 for ovens combined with heat transfer distribution or
accumulator means.
430 for a vessel and stand combined with heat storage or
transfer means.
439 for a vessel alone combined with heat storage or
transfer means.
462 for electrical hot plates with heat storage or transfer
means.
540 for a heating unit structure per se with heat storage or
exchange means.
SEE OR SEARCH CLASS:
126, Stoves and Furnaces, subclass 400 for heat accumulator
structure in general.
165, Heat Exchange, appropriate subclasses for heat transfer
or exchange means in general.
338, Electrical Resistors, subclass 59 for resistors, per
se, combined with heat storing means.
Subclass:
531
This subclass is indented under subclass 520. Subject matter
wherein the significant housing, casing or support structure
includes thermal insulation or other means whereby unwanted
heat is dissipated or prevented form effecting at least some
portion of the housing, casing or support means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
460 for planar surface heater with heating unit support with
thermal insulation or ventilating means.
540 for heating element for heat transfer plate or fins.
542 for resistive element with particular electrical
insulation means.
SEE OR SEARCH CLASS:
338, Electrical Resistors, 51 for resistors, per se,
combined with heat dissipating vanes and subclasses 53+ for
resistors combined with cooling gas or liquid circulation.
Subclass:
532
This subclass is indented under subclass 520. Subject matter
wherein the significant support means is comprised of an open
frame or grid with the heating unit or units supported on or
by the grid members usually by tubular or spool type
insulator means. The heating element or elements in this
subclass are generally exposed straight resistance wire or
coils but they may be sheathed, as in a "Calrod" type.
SEE OR SEARCH CLASS:
338, Electrical Resistors, appropriate subclasses for open
frame or grid supported resistance elements, particularly 226
for incased resistors, which may be comprised of zigzag or
helical wound type, subclasses 283+ for zigzag or sinuous
type, subclasses 296+ for helical or wound type elements in
general and subclasses 315+ for resistors, per se, combined
with mounting or supporting means.
Subclass:
533
This subclass is indented under subclass 520. Subject matter
wherein the significant housing, casing or support structure
includes handle or other means whereby the housing, casing or
support is adapted to be carried by or held in the hand.
SEE OR SEARCH THIS CLASS, SUBCLASS:
227 for hand held or manipulative tool devices combined with
heater devices.
245 for sadirons with heating means.
260 for portable igniters.
346 for portable containers combined with heating devices.
386 for portable containers combined with heating devices.
527 for body supported (e.g., human body) heaters.
Subclass:
534
This subclass is indented under subclass 520. Subject matter
wherein the significant housing, casing or support structure
comprises rigid tubes. The structure usually comprises a
flattened tube but may include tubes adapted to have the
heating unit mounted in such a manner as to allow the
material to be heated to flow through or be contained within
the housing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
300 for liquid heater wherein the liquid conveying tube is
the heater unit.
301 for liquid heater wherein the heater unit is attached to
or surrounds the liquid conveying tube.
306 for liquid heater, wherein the heater unit is enclosed
within the liquid conveying path.
374 for fluid heater wherein the heating element is directly
in the fluid path.
544 for heater unit structure wherein the resistance element
is embedded within or surrounded by a core sheath or
support.
Subclass:
535
This subclass is indented under subclass 520. Subject matter
wherein the housing, casing or support structure claimed
includes significant details of means whereby the device may
be applied to or shaped to fit the contours of an object to
be heated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
201 for electric heaters combined with other art devices.
301 for liquid heater with heater unit attached to or
surrounding the liquid conveying means.
456 for planar surface heaters wherein the material support
is adjustable to the shape of the material heated.
528 for heating unit of flexible or resilient construction.
545 for heating element interwoven with fabric.
549 for heating element on flexible support.
SEE OR SEARCH CLASS:
104, Railways, subclass 279 for rail heaters.
105, Railway Rolling Stock, subclass 451 for seat heaters.
123, Internal-Combustion Engines, 543 for charge forming
devices (carburetors) with heating means and subclass 142.5
for heating devices adapted to be applied to a motor.
138, Pipes and Tubular Conduits, subclass 33 for electric
pipe heaters.
165, Heat Exchange, 48.1 for heating or cooling apparatus
adapted for special structural installation.
191, Electricity: Transmission to Vehicles, subclass 27 for
heated conductors.
312, Supports: Cabinet Structure, subclass 236 for cabinet
structure combined with heating means.
313, Electric Lamp and Discharge Devices, 11 for discharge
devices combined with temperature modifying means.
429, Chemistry: Electrical Current Producing Apparatus,
Product, and Process, for battery having heat exchange
feature.
607, Surgery: Light, Thermal, and Electrical Application,
appropriate subclasses under subclass 1 for heat applicators
adapted to fit various parts of the human body.
Subclass:
536
This subclass is indented under subclass 520. Subject matter
wherein the housing, casing or support structure includes
significant structure whereby the heating unit is attached to
or mounted upon or within the housing, casing or support
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
463 for planar surface heater with heating unit attachment
or securing means.
542 for resistive element attaching or securing means.
Subclass:
537
This subclass is indented under subclass 536. Subject matter
wherein a single housing, casing or support structure is
combined with a plurality of heating units having significant
attachment means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
478 for plural separate heating devices with unitary
housing, support or casing means.
Subclass:
538
This subclass is indented under subclass 200. Subject matter
consisting of a heating element, usually resistive, with a
core, sheath or support means, the combination comprising a
basic heating unit adapted to form a subcombination of a more
comprehensive combination which is classifiable higher up in
this class or in another art class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
119 for metal heating resistance welding electrodes.
145.1 and 146.1+, for metal heating arc welding electrodes.
221 for specific heating unit means combined with a hand
tool.
254 for a specific heating unit combined with an electric
iron.
270 for a specific igniter unit.
275 for specific heating unit means combined with a
vaporizer.
278 for a specific heating unit combined with an oil well
heater.
335 for a specific heating unit combined with a liquid
heater.
353 for a specific heating unit combined with a radiant
heater.
385 for a specific heating unit combined with a convection
heater.
414 for a specific heating unit combined with an over type
enclosure.
431 for significant heating unit means combined with a
crucible or furnace.
469 for significant heating unit means combined with a hot
plate.
520 for the combination of a heater unit with a particular
housing or casing therefor in general.
600 for induction heating system and subsystem.
678 for microwave heating system and subsystem.
764 for capacitive dielectric heating system and subsystem.
Subclass:
539
This subclass is indented under subclass 538. Subject matter
comprising a plurality of heating elements combined with
core, sheath or support means. The plurality of elements may
or may not be attached to a single core, sheath or support
means.
(1) Note. To complete the search for this subject matter,
search should be made above in the indented subclass under
each special type heating devices listed.
SEE OR SEARCH CLASS:
338, Electrical Resistors, particularly subclass 48, for
plural separate diverse resistors, subclasses 76, 120, 122+,
and 128+ for mechanically variable resistor which may involve
a plurality of resistors with a support, subclass 203, for
structures readily separable into a plurality of resistors,
subclasses 235, 239 and 260+ for plural resistors which are
embedded, incased or housed, subclass 295, for plural
resistance elements connected by a jumper, subclass 299, for
plural helix or winding type resistor with support, subclass
319, for plural resistors extending between supports and
subclass 320, for plural resistors with mounting or
supporting means in general.
Subclass:
540
This subclass is indented under subclass 538. Subject matter
including significant heat transfer or storage means, such as
fins or plates whereby the heat energy generated in the
heating unit is transferred to a space or body of material
which is to be heated.
(1) Note. To complete the search for this subject matter
consult the appropriate subclasses under each special type
heating device listed under "Search This Class, Subclass" of
subclass 530.
SEE OR SEARCH CLASS:
338, Electrical Resistors, 51 for resistors with heat
dissipating projections (e.g, vanes); subclasses 53+ for
resistors with cooling gas or liquid circulation means and
subclass 59 for resistors with heat storing means.
Subclass:
541
This subclass is indented under subclass 538. Subject matter
including specific terminal or connector elements whereby an
electrical connection with an external electrical circuit may
be made.
SEE OR SEARCH THIS CLASS, SUBCLASS:
247 for electric flatiron with stand and electrical
connector means.
256 for electric flatiron with terminal structure.
318 for readily detachable liquid heater units.
321 for liquid heater with plural selectively replaceable
heater units.
351 for radiant heaters with interchangeable or readily
detachable heating units.
403 for ovens with heating units detachable from heated
enclosure.
436 for vessel and stand with heating unit attaching means.
447 for vessel with plural detachable or interchangeable
heater units.
SEE OR SEARCH CLASS:
338, Electrical Resistors, appropriate subclasses for
particular resistors with terminals and 322 for electrical
resistors, per se, with terminal means in general ("Search
This Class, Subclass" under subclass 322 lists particular
resistors with connectors or terminals in Class 338).
439, Electrical Connectors, appropriate subclasses, for
terminals of the separable type, per se, which may be applied
to heater units.
Subclass:
542
This subclass is indented under subclass 538. Subject matter
including a heating element secured or attached to, or
insulated from, a core, sheath or support by specific means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
536 for heater unit with a mounting or attaching means.
SEE OR SEARCH CLASS:
338, Electrical Resistors, 226 for resistor means incased,
embedded or housed and subclasses 306+ for a resistor element
with a base extending along the element.
Subclass:
543
This subclass is indented under subclass 542. Subject matter
including a core, sheath or support means having a heating
element attached thereto by printing or deposited thereon by
other coating or bonding means.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 250 for
preformed panel circuit arrangements, such as printed
circuits.
338, Electrical Resistors, subclass 307 for printed
resistance element and subclasses 308+ for coated resistance
element resistors.
Subclass:
544
This subclass is indented under subclass 542. Subject matter
comprising a heating element embedded in or completely
surrounded by a core, sheath or other support means. The
element may be enclosed or surrounded by electrical
insulating material within a groove or recessed in the core
or sheath or may be simply inserted into a recess in the core
or sheath.
SEE OR SEARCH THIS CLASS, SUBCLASS:
534 for heater unit combined with a rigid, tubular housing,
casing or support.
SEE OR SEARCH CLASS:
338, Electrical Resistors, 226 for resistor, per se,
incased, embedded or housed within a sheath.
Subclass:
545
This subclass is indented under subclass 542. Subject matter
consisting of an element of electrical resistive material
interwoven with a support means of nonconductive material.
The nonconductive material generally consists of glass or
asbestos fibers but may consist of any other nonconductive
fabric.
SEE OR SEARCH THIS CLASS, SUBCLASS:
211 for electrical heater combined with wearing apparel.
212 for electrical heater combined with bed covering (e.g.,
blanket).
529 for heater unit with a support of cloth or other
fabric.
549 for heater resistance element with flexible core, sheath
or support means.
SEE OR SEARCH CLASS:
139, Textiles: Weaving, subclass 425 for interwoven fabric
and metal in general.
338, Electrical Resistors, subclass 208 for mesh woven or
braided resistance element, per se, and subclass 259 for
resistor means combined with a wound, braided or woven casing
or housing.
Subclass:
546
This subclass is indented under subclass 538. Subject matter
wherein the significant structural details relate to the
particular core, sheath or support means for the resistive or
other heating element.
SEE OR SEARCH CLASS:
338, Electrical Resistors, subclass 321 for resistive
element cores and frames.
Subclass:
547
This subclass is indented under subclass 546. Subject matter
wherein the significant core, sheath or support means is
comprised wholly, or in part, of the material to be heated;
such as a glass panel having a resistive heating element
adhered thereto or imbedded therein.
SEE OR SEARCH CLASS:
338, Electrical Resistors, 226 for resistor means incased or
embedded in a support.
Subclass:
548
This subclass is indented under subclass 546. Subject matter
wherein the core, sheath or support means is compromised of a
significant material or is constructed in a particular
manner.
SEE OR SEARCH THIS CLASS, SUBCLASS:
354 for fluid heaters of the radiant type with heating unit
structure of particular construction or material.
409 for oven with heating unit structure or composition.
426 for furnace with heating unit of particular structure or
composition.
468 for planar surface heater with heating unit with
particular resistance element structure or material.
553 for heating element of particular construction or
material.
SEE OR SEARCH CLASS:
338, Electrical Resistors, appropriate subclasses for
resistor means with a significant core or sheath.
Subclass:
549
This subclass is indented under subclass 548. Subject matter
wherein the significant core, sheath or support means is
comprised of material which is adapted to be flexed, folded
or rolled upon itself without becoming permanently deformed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
211 for electric heater combined with wearing apparel.
212 for electric heater combined with bed clothing.
456 for heater with a support adjustable to the shape of the
material to be heated.
528 for heater unit with flexible or resilient support.
545 for resistive element interwoven with fabric support.
SEE OR SEARCH CLASS:
338, Electrical Resistors, 210 for flexible or folding
resistor devices.
Subclass:
550
This subclass is indented under subclass 548. Subject matter
wherein the significant core, sheath or support means
consists of plural sections or elements of insulative
material adapted to be joined together to form a single whole
device.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 137 and
appropriate subclasses for insulators which may be joined or
sectional.
Subclass:
551
This subclass is indented under subclass 548. Subject matter
wherein the significant core, sheath or support means is
recited as comprising a thin plate or wafer element of
insulating material and including means whereby the element
may be rigidly inserted between two external members; usually
metallic, in the manner of a conventional gasket.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 137, especially
subclass 138 for special application and subclasses 151+ for
through wall or plate insulators.
Subclass:
552
This subclass is indented under subclass 538. Subject matter
wherein the heating unit structure comprises significant
details of a particular resistance or other type heating
element.
(1) Note. The resistor structures in this and the indented
subclasses are similar to the electrical resistor structure
to be found in Class 338, but are restricted to those
resistive devices peculiarly adapted to efficiently convert
electrical energy into heat energy and limited to use in the
heating devices under the class definition of this class
(219). The resistor structures in Class 338 are primarily
and peculiarly adapted for use as current impeding or
limiting electrical resistors where the heat generated is
incidental or undesired and secondary to the primary current
impeding or limiting function. See Lines With Other Classes
and Within This Class in Class 338, Electrical Resistors, for
a more detailed explanation of the line between Class 318 and
Class 219.
Subclass:
553
This subclass is indented under subclass 552. Subject matter
wherein the significant resistance or other type element
comprises particular structural elements or is made from a
specific material; such, for example, as carbon pellets or
granular material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
354 for fluid heaters of the radiant type with heating
element of particular construction or composition.
548 for heater unit element core, sheath or support means of
particular construction or material.
Subclass:
600
INDUCTIVE HEATING:
This subclass is indented under the class definition.
Subject matter for electric heating whereby an
electromagnetic field interacts in close proximity to an
electrically conducting material or object causing current to
flow through a material or object and producing heat
proportional to a resistance of the material or object.
(1) Note. Inductive, capacitive dielectric, and microwave
heating applications are in the radio frequency region of the
electromagnetic spectrum, with the exception of inductive
heating which may be in a frequency range as low as 50 hertz.
Specifically, inductive and capacitive dielectric heating
are commonly in the frequency ranges from 1000 hertz to 1
gigahertz, and microwave heating is in the frequency ranges
from 1 gigahertz to 3 gigahertz (also called microwave
range).
(2) Note. For claims reciting both food (edible) and
nonfood (nonedible) heating by an electric heating device or
method, classification is proper for Class 219. If the
claims recited are limited to food (edible) heating methods,
composition, product, or processes, classification is proper
for Class 426.
(3) Note. The heating may be combined with working the
metallic or nonmetallic material heated.
(4) Note. The work may have electric current or potential
induced therein and thus constitute the secondary of a
transformer, or it may be a continuation of the inductor
core.
(5) Note. A closed transformer secondary may be the
inductively heated member for the purpose of heat transfer.
(6) Note. An inductive heating apparatus with corona
prevention means, shock protection means, and the like, is
classified herein.
(7) Note. An inductive heater with means to heat the
inductor to prevent condensation thereon is classified
herein.
(8) Note. An inductive heating apparatus with means to
prevent dissipation of heat from the work by simultaneously
heating the work holder or support is classified herein.
(9) Note. This subclass and the indented subclasses include
inductive heating having means for applying pressure to the
work (see subclass 659) or for cooling the inductor apparatus
during the application of electrical energy (see subclass
632). If the cooling apparatus is provided for use
subsequent to the heating or is for the purpose of treating
the material or object being heated, classification is proper
with the art collection to which it pertains.
SEE OR SEARCH THIS CLASS, SUBCLASS:
108 especially indented subclass 116 for electric supply
systems for heating metal where the work is heated by
connecting it in series with the secondary of a transformer
so as to complete a conductive current path from the
secondary through the work. In subclasses 108+, the
transformer secondary is not the heated member, nor is the
workpiece a part of the secondary of the transformer.
SEE OR SEARCH CLASS:
118, Coating Apparatus, subclass 50.1, 620+, and 724+ for
means to apply electrical and/or radiant energy to work
and/or coating.
148, Metal Treatment, for metal fusion bonding or working of
metal, is combined with significant heat treatment of metal
as defined in the Class Definition of Class 148.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
272.2 for methods and subclasses 379.6+ for means of surface
bonding and/or assembly thereof with direct application of
electrical, magnetic, or radiant energy to work.
204, Chemistry: Electrical and Wave Energy, 193 for
apparatus for treating substances with electrical or radiant
energy to effect a chemical change.
266, Metallurgical Apparatus, appropriate subclasses for
miscellaneous apparatus particularly adapted for the
treatment of metals and metalliferous material. Class 266,
subclass 129, provides for apparatus having inductive heating
means in combination with other heat treatment means such as
quenching apparatus.
373, Industrial Electric Heating Furnaces, appropriate
subclasses for miscellaneous electrical furnaces; see
subclass 4, 6, 7, and 138+ for induction furnaces.
600, Surgery, 9 for a magnetic field applied to the body for
therapeutic purposes.
606, Surgery, 27 or 32+ for instruments for heat or
electrical application.
607, Surgery: Light, Thermal, and Electrical Application, 1
for light and thermal application to the body and subclasses
114 through 156 for an electrical energy applicator.
Subclass:
601
With diverse-type heating:
This subclass is indented under subclass 600. Subject matter
wherein both an inductive heater and a different type of
heater are provided for in a heating arrangement.
(1) Note. Examples of different types of heaters are
resistance heaters, incandescent lamps, infrared lamps,
microwave and capacitive dielectric heating, etc.
(2) Note. The meaning of "workpiece" is any object or
material that work (in the form of heat) is applied to.
(3) Note. An inductive heater whose circuit is completed
through a workpiece in order to obtain both resistive and
inductive heating effects is classifiable here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
680 for microwave heating with other types of heating
elements included in the heating apparatus.
Subclass:
602
Metal working:
This subclass is indented under subclass 600. Subject matter
wherein a metallic workpiece is physically changed in shape
or deformed by inductive heating.
(1) Note. Metal working is defined as the changing of the
physical shape of the metal (as, for example, by plastic
deformation or by cutting) as, for example, by heat
treatment.
SEE OR SEARCH THIS CLASS, SUBCLASS:
50 for especially indented subclasses 149+ for similar
subject matter not having inductive heating.
SEE OR SEARCH CLASS:
29, Metal Working, 400.1 for methods of mechanical
manufacturing.
72, Metal Deforming, 342.1 for a device with a temperature
modification of a tool or specific portion of work.
Subclass:
603
Bonding:
This subclass is indented under subclass 602. Subject matter
wherein two or more opposing metallic surfaces are
permanently joined together by inductive heating.
(1) Note. This subclass relates, for example, to welding,
brazing, or soldering of metal-to-metal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
633 for bonding with a heat exchange.
765 for bonding in which the object or material is
nonmetallic.
SEE OR SEARCH CLASS:
29, Metal Working, 428 for assembling or joining.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
272.2 for methods and subclasses 379.6+ for means of surface
bonding and/or assembly thereof with direct application of
electrical, magnetic, or radiant energy to work.
228, Metal Fusion Bonding, appropriate subclasses for
nonelectric metal fusion bonding.
Subclass:
604
Container sealing:
This subclass is indented under subclass 603. Subject matter
wherein the bonded surfaces result in a tightly enclosed
vessel having the capacity for holding material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
769 for bonding containers by capacitive dielectric
heating.
SEE OR SEARCH CLASS:
53, Package Making, 477 for closing a package by heat
sealing and digest 2 for high frequency electric sealing.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
272.2 and 379.6+ for methods and means of surface bonding
and/or assembly thereof with direct application of
electrical, magnetic, or radiant energy to work, and subclass
69 for application of end closures to containers.
Subclass:
605
Wire (e.g., cable, etc.):
This subclass is indented under subclass 603. Subject matter
wherein the bonding is between plural ends of elongated solid
flexible cylindrical conductors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
56 for wire, rod, or bar bonding by resistance heating.
636 for hardening wire or cable by inductive heating.
SEE OR SEARCH CLASS:
29, Metal Working, 825 for conductor or circuit
manufacturing.
228, Metal Fusion Bonding, 173.1 for bonding a rod, bar, or
wire-like object by deforming.
Subclass:
606
Ring:
This subclass is indented under subclass 603. Subject matter
wherein a circular band is bonded to a conductor.
(1) Note. The circular band may be a seat on which a flap
or lid rests (e.g., a valve seat).
SEE OR SEARCH THIS CLASS, SUBCLASS:
641 for hardening a valve seat by inductive heating.
642 for hardening a ring or link by inductive heating.
SEE OR SEARCH CLASS:
29, Metal Working, 890.12 for valve making.
Subclass:
607
Tube (i.e., pipe):
This subclass is indented under subclass 603. Subject matter
wherein the metal workpiece is bonded together to form a
hollow cylinder or plural hollow cylinders forming one unit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
59.1 for similar subject matter involving resistance
heating.
643 for heating a preformed tubular object.
SEE OR SEARCH CLASS:
228, Metal Fusion Bonding, subclass 60 for tube end closing
and subclasses 144+ for edge joining of a piece blank or
strip.
285, Pipe Joints or Couplings, subclass 41 for heating or
cooling thereof.
Subclass:
608
With electrical control (e.g., speed, temperature, gaging
thickness, etc.):
This subclass is indented under subclass 607. Subject matter
wherein an electric device continuously adjusts the forming
of a tube according to a specific result.
SEE OR SEARCH THIS CLASS, SUBCLASS:
663 for an inductive heating system with condition
responsive controlled power supply.
Subclass:
609
Layering (e.g., coating, lining, etc.):
This subclass is indented under subclass 607. Subject matter
wherein a coating or lining is applied to an interior or
exterior surface of a tube wall, or a tube is formed around
an object.
(1) Note. A tube may be formed around other objects such as
wire, cable, or another tube.
SEE OR SEARCH CLASS:
118, Coating Apparatus, subclass 50.1 and 620+ for means
applying electrical and/or radiant energy to work and/or
coating material.
427, Coating Processes, subclass 543 and 591 for processes
with dielectric or induction heating or utilizing radio or
microwave energy.
Subclass:
610
With preheating or postheating:
This subclass is indented under subclass 607. Subject matter
wherein the metal workpiece is heated prior to, or after, the
forming of the tube.
(1) Note. Apparatus for operating on the material or object
prior to the heating may be included only if the sole purpose
of such a preparatory operation is to facilitate the
inductive heating.
SEE OR SEARCH THIS CLASS, SUBCLASS:
601 for inductive heating with another diverse type of
heating.
656 for an inductive heating system with multiple stations
of plural heating zones.
Subclass:
611
Plural (e.g., end to end, etc.):
This subclass is indented under subclass 607. Subject matter
wherein a tube end is bonded together with another tube
thereby forming one unit.
SEE OR SEARCH CLASS:
285, Pipe Joints or Couplings, subclass 41 for heating or
cooling thereof.
Subclass:
612
Seam bonding:
This subclass is indented under subclass 607. Subject matter
wherein a tube is formed by permanently joining together two
opposing outer edges of a C cross-sectional elongated metal
strip.
SEE OR SEARCH CLASS:
228, Metal Fusion Bonding, 144 for edge joining of one piece
blank or strip.
Subclass:
613
With impeder:
This subclass is indented under subclass 612. Subject matter
including a device which modifies or intensifies a current
path traveling along the seam of the tube.
SEE OR SEARCH THIS CLASS, SUBCLASS:
670 for inductive heating systems with a specific
transformer core structure.
Subclass:
614
With guiding device:
This subclass is indented under subclass 612. Subject matter
including an arrangement of roller-type apparatus that curves
outer edges of an elongated metal strip inward to form a C
cross-section or arranged to direct the tube movement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
61.13 and 61.3, for resistance heating cylinders with edge
guidance means.
647 for an inductive heating device with workpiece support.
Subclass:
615
Brazing (e.g., cladding, etc.):
This subclass is indented under subclass 603. Subject matter
wherein a melted alloy of copper or brass is used to fill the
joint between the opposing surfaces.
(1) Note. The melting point of braze metal is usually lower
than the base metal to be bonded, therefore base metal fusion
is not required. Braze metal is also called hard solder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
85.1 for brazing or soldering by resistance heating.
Subclass:
616
Soldering:
This subclass is indented under subclass 603. Subject matter
wherein a melted alloy of lead and tin is melted and used to
fill the joint between the opposing surfaces.
(1) Note. The melting point of solder is usually lower than
the base metal to be bonded, therefore base metal fusion is
not required.
SEE OR SEARCH THIS CLASS, SUBCLASS:
85.1 brazing or soldering by resistance heating.
SEE OR SEARCH CLASS:
228, Metal Fusion Bonding, 33 for means to apply flux and
subclasses 51+ for a metallic heat applicator.
Subclass:
617
Welding:
This subclass is indented under subclass 603. Subject matter
wherein the opposing surfaces are heated until soft enough to
adhere to each other.
(1) Note. Welding may be accomplished with the application
of heat and mechanical force.
SEE OR SEARCH THIS CLASS, SUBCLASS:
50 for similar subject matter using resistance heating.
Subclass:
618
With heat exchange:
This subclass is indented under subclass 600. Subject matter
wherein an intermediate member is inductively heated so as to
transfer heat to another member, material, or object.
SEE OR SEARCH CLASS:
165, Heat Exchange, appropriate subclasses for a heat
exchange structure.
266, Metallurgical Apparatus, appropriate subclasses for
apparatus for heating and cooling (by quenching, for example)
solid metal, including such apparatus where inductive heating
means are provided.
336, Inductor Devices, 55 for the structure of transformers
and inductive reactors with means to modify the temperature
thereof.
361, Electricity: Electrical Systems and Devices, 381 for
an electronic system with cooling means.
Subclass:
619
Roller (e.g., godet, etc.):
This subclass is indented under subclass 618. Subject matter
wherein an intermediate member is a rotatable drum-like
cylinder.
(1) Note. This includes, for example, a godet which is
defined as a roller around which synthetic filaments are
passed under tension for stretching.
SEE OR SEARCH THIS CLASS, SUBCLASS:
469 for a cylindrical or roller-type support for material to
be heated by resistance heating.
SEE OR SEARCH CLASS:
100, Presses, 300 for a roll press with heating means.
Subclass:
620
Cooking:
This subclass is indented under subclass 618. Subject matter
wherein the intermediate member is arranged to transfer heat
to warm, defrost, or cook (edible) food.
(1) Note. For claims reciting both food (edible) and
nonfood (nonedible) heating by an electric heating device or
method, classification is proper for Class 219. If the
claims recited are limited to food (edible) heating methods,
composition, product, or processes, classification is proper
for Class 426.
SEE OR SEARCH THIS CLASS, SUBCLASS:
385 for similar subject matter utilizing resistance
heating.
725 for cookware for microwave cooking.
771 for cooking by capacitive dielectric heating.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 451 for
electric radiant or vibrational treating means and digest 14
with induction heating.
126, Stoves and Furnaces, 1 for cooking.
392, Electric Resistance Heating Devices, for appropriate
subclasses having similar subject matter using resistance
heating.
426, Food or Edible Material: Processes, Compositions, and
Products, 237 for direct application of electrical or wave
energy to food material.
Subclass:
621
Utensil (e.g., pot, pan, etc.):
This subclass is indented under subclass 620. Subject matter
wherein the intermediate member is a container or vessel used
to hold food (edible) while cooking.
SEE OR SEARCH THIS CLASS, SUBCLASS:
725 for cookware for microwave heating.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, digest 14 for cooking
with induction heating.
126, Stoves and Furnaces, for general heat applying apparatus
having other than electrical heating means, subclasses
373.1-390.1 for a liquid heater having an open-top vessel
that may include a lid.
220, Receptacles, 573.1 and 912 for cookware.
Subclass:
622
With support:
This subclass is indented under subclass 620. Subject matter
wherein a rigid structure is useable for sustaining a utensil
and an inductive heating element within close proximity of
each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
385 for a resistance heating device combined with a
container, enclosure, or support for material to be heated.
647 for inductive heating device having a workpiece
support.
SEE OR SEARCH CLASS:
312, Supports: Cabinet Structure, subclass 236 for support
with heating, cooling, or heat exchange means.
Subclass:
623
Having cooling device:
This subclass is indented under subclass 622. Subject matter
including a device to remove heat from an inductive cooking
support or food serving support.
(1) Note. This subclass does not provide for inductive
heaters combined with devices for cooling only the work.
Such excluded subject matter may be found in the classes
which provide for the apparatus which treats the specific
materials and object which are cooled.
SEE OR SEARCH THIS CLASS, SUBCLASS:
399 for an electrical oven with heat energy transfer
distribution or accumulator means.
632 for an inductive heater with cooling arrangement.
757 for a microwave oven with cooling or ventilation.
SEE OR SEARCH CLASS:
126, Stoves and Furnaces, subclass 21 for ventilated ovens
and subclass 299 for a stove with stove surface ventilation.
361, Electricity: Electrical Systems and Devices, 381 for
an electrical system with cooling means.
Subclass:
624
Core or coil structure:
This subclass is indented under subclass 620. Subject matter
wherein (a) a magnetic conductor of a particular geometric
shape links an inductive winding (primary) to the
intermediate member (secondary) or (b) a conducting wound
wire (primary) induces an alternating current in the
intermediate member (secondary).
SEE OR SEARCH THIS CLASS, SUBCLASS:
670 for an inductive heating system with specific
transformer.
672 for an inductive heating system with specific inductor
configuration.
SEE OR SEARCH CLASS:
336, Inductor Devices, for appropriate subclasses for core or
coil structures.
Subclass:
625
Intermediate member condition responsive:
This subclass is indented under subclass 620. Subject matter
wherein an automatic controlling device is regulating or
adjusting an inductive heating element interaction upon an
intermediate member according to a preselected result.
(1) Note. The automatic controlling device must include
means to sense a condition and means to vary a condition in
response to the sensed condition. Means to maintain a
condition constant is included as an automatic control where
the system includes means to sense deviations from the
condition and to adjust the system to maintain the desired
value constant.
SEE OR SEARCH THIS CLASS, SUBCLASS:
482 for a resistance heating device with a control system.
663 for inductive heating systems with automatic control.
702 for a microwave heating device with a control system.
779 for a capacitive dielectric heating device with a
control system.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 325 for a cooking
device with automatic control.
307, Electrical Transmission or Interconnection Systems,
appropriate subclasses for the miscellaneous power
distribution and supply systems.
323, Electricity: Power Supply or Regulation Systems,
appropriate subclasses for the miscellaneous systems for
controlling phase angle or voltage and/or current magnitude
and for the miscellaneous transformer and impedance systems.
363, Electric Power Conversion Systems, appropriate
subclasses for inverter and/or converter systems.
Subclass:
626
Load sensing:
This subclass is indented under subclass 625. Subject matter
wherein a device is condition responsive to a presence or
absence of an intermediate member or to the ability of the
intermediate member to conduct.
SEE OR SEARCH THIS CLASS, SUBCLASS:
665 for an inductive heating control system responsive to a
load condition.
Subclass:
627
Temperature:
This subclass is indented under subclass 625. Subject matter
wherein a device is condition responsive to an increase or
decrease in a thermal change of the intermediate member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
494 for an electrical resistive heating device with
thermally responsive automatic regulating or control means.
667 for an inductive heating device with a power control
responsive to load temperature.
710 for a microwave heating device with a power control
responsive to load temperature.
SEE OR SEARCH CLASS:
374, Thermal Measuring and Testing, for subclass 149 for
temperature measurement combined with a cooking compartment.
Subclass:
628
Fluid or liquid heater:
This subclass is indented under subclass 618. Subject matter
wherein the intermediate member is arranged to transfer heat
to a fluent material.
(1) Note. A fluent material is one that flows easily from
container to container and may be a fine granular material,
liquid, or air.
(2) Note. An inductively heated intermediate member is
usually a conduit or container where the heat is to be
supplied to a fluent material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
687 for a microwave fluid heater.
772 for apparatus for dielectric heating a fluent material
where the electromagnetic field acts directly on the fluent
material.
SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 341 having an electric
heater.
138, Pipes and Tubular Conduits, subclass 33 for fluid
conduits with electric thawing and freeze protection means.
336, Inductor Devices, 55 for the structure of transformers
and inductive reactors with means to modify the temperature
thereof.
392, Electric Resistance Heating Devices, 311 for a
noninductive electrical fluid heater.
Subclass:
629
By tube (i.e., pipe):
This subclass is indented under subclass 628. Subject matter
wherein the intermediate member is a hollow cylinder which
transports a fluent material.
SEE OR SEARCH CLASS:
392, Electric Resistance Heating Devices, 320 for an
electrical resistance heater with a tube or pipe forming a
flow path.
Subclass:
630
Core or coil structure:
This subclass is indented under subclass 629. Subject matter
wherein (a) a magnetic conductor of particular geometric
shape links an inductive winding (primary) to the tube
(secondary) or (b) a conducting wound wire (primary) induces
an alternating current in the tube (secondary).
SEE OR SEARCH THIS CLASS, SUBCLASS:
670 for a power supply system with a specific transformer
structure.
677 for specific inductor configuration having a cooling
arrangement.
SEE OR SEARCH CLASS:
336, Inductor Devices, subclasses 221-234 for coil and core
structures.
Subclass:
631
Core rotation:
This subclass is indented under subclass 630. Subject matter
wherein the core is subjected to a spinning or circular
motion relative about its axis.
Subclass:
632
With cooling arrangement:
This subclass is indented under subclass 618. Subject matter
including an apparatus to remove heat from the intermediate
member.
(1) Note. This subclass does not provide for inductive
heaters combined with devices for cooling only the work.
Such excluded subject matter may be found in the classes
which provide for the apparatus which treats the specific
materials and object which are cooled.
SEE OR SEARCH THIS CLASS, SUBCLASS:
677 for a specific inductor having a cooling arrangement.
Subclass:
633
Bonding (e.g., nonmetallic, etc.):
This subclass is indented under subclass 618. Subject matter
wherein the intermediate member is arranged to transfer heat
to permanently unite two or more surfaces together.
(1) Note. Bonding by inductive heat exchange (using an
intermediate member to transfer heat) is most common when the
materials or workpieces are nonmetallic substances or when
bonding metal to plastic using thermal sensitive glue.
(2) Note. Apparatus for operating on the material or object
prior to the heating may be included only if the sole purpose
of such a preparatory operation is to facilitate the
inductive heating.
SEE OR SEARCH THIS CLASS, SUBCLASS:
603 for bonding metal by direct inductive heating.
765 for bonding by capacitive dielectric heating.
SEE OR SEARCH CLASS:
65, Glass Manufacturing, appropriate subclasses, especially
36 for a process of bonding glass by a glassworking
operation to a preformed part and subclasses 152+ for
glassworking apparatus including fusion bonding means.
75, Specialized Metallurgical Processes, Compositions for Use
Therein, Consolidated Metal Powder Compositions, etc.,
appropriate subclasses for bonding particulate metal by heat
and/or pressure.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
272.2 for laminating processes which include heating or
other effects produced by electrical energy; see subclasses
379.6+ for apparatus therefor.
228, Metal Fusion Bonding, appropriate subclasses for
nonelectric metallurgical fusion bonding.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, 460 for direct application of electrical or wave
energy for heating purposes in processes of molding or
shaping plastic materials within the class definition and
subclasses 109+ for forming articles by uniting discrete,
bulk assembled particles.
373, Industrial Electric Heating Furnaces, appropriate
subclasses for electric furnaces involving sintering.
419, Powder Metallurgy Processes, appropriate subclasses for
processes for making articles by uniting discrete, bulk
assembled metal particles.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, 174 for means applying electrical or wave energy
directly to a workpiece.
Subclass:
634
Susceptor:
This subclass is indented under subclass 618. Subject matter
wherein the intermediate member has highly absorbing thermal
energy properties and transfers the thermal energy to a
workpiece.
(1) Note. The meaning of "workpiece" is any object or
material that work (in the form of heat) is applied to.
SEE OR SEARCH THIS CLASS, SUBCLASS:
730 for microwave cookware with a susceptor.
759 for a microwave heating device with a heat exchange
susceptor.
SEE OR SEARCH CLASS:
118, Coating Apparatus, 724 for a gas or vapor deposition
coating device with heater.
Subclass:
635
Specific heating application:
This subclass is indented under subclass 600. Subject matter
wherein an object or material of a particular shape or form
is subjected to inductive heating.
(1) Note. This and indented subclasses are intended
primarily as subclasses for specific applications of electric
inductive heating. Examples of specific applications are an
inductive heater claimed in combination with an article of
unique configuration or with a specific material, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
770 for a specific capacitive dielectric heating
application.
SEE OR SEARCH CLASS:
148, Metal Treatment, 566 for induction heating of metal.
266, Metallurgical Apparatus, subclasses 121-129 for metal
quenching with heating means.
Subclass:
636
Wire (e.g., cable, etc.):
This subclass is indented under subclass 635. Subject matter
wherein the heating is applied to an elongated solid flexible
cylindrical conductor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
605 for bonding wire or cable ends together.
Subclass:
637
Rod:
This subclass is indented under subclass 635. Subject matter
wherein the heating is applied to an elongated solid
nonflexible bar of material or object.
Subclass:
638
Semiconductor:
This subclass is indented under subclass 637. Subject matter
wherein the rod material has conductivity ranges between that
of a conductor and an insulator.
SEE OR SEARCH CLASS:
117, Single-Crystal, Oriented-Crystal, and Epitaxy Growth
Processes; Non-Coating Apparatus Therefor, particularly 7
for solid phase single crystallization techniques, subclasses
13+ for liquid phase single crystallization techniques of the
melt-pull type, subclasses 51+ for liquid phase single
crystallization techniques of the float zone type utilizing
electromagnetic induction, subclass 102 for chemical vapor
deposition techniques of forming a single crystal utilizing
inductive heating, and subclass 222 for apparatus for forming
a single crystal involving a moving solid-liquid-solid
interface, such apparatus having details of the heating means
for use therein.
373, Industrial Electric Heating Furnaces, subclass 139 for
an induction furnace device for zone melting.
423, Chemistry of Inorganic Compounds, 349 for the
chemically reactive production of elemental silicon utilizing
as a starting material a silicon containing compound, wherein
the production may be affected through the use of inductive
heating.
438, Semiconductor Device Manufacturing: Process, appropriate
subclass for methods of making semiconductor electrical
devices; see the search notes therein.
Subclass:
639
Irregular (e.g., camshaft, etc.):
This subclass is indented under subclass 637. Subject matter
wherein the rod is nonsymmetrical about its cross-sectional
area.
Subclass:
640
Gear:
This subclass is indented under subclass 635. Subject matter
wherein the heating is applied to a cylindrical disk with a
serrated (teeth) outer edge.
SEE OR SEARCH CLASS:
148, Metal Treatment, 566 for processes of heat treating
ferrous metal gears using electrical energy.
266, Metallurgical Apparatus, 125 for the miscellaneous
apparatus for the heat treatment of metal gears.
Subclass:
641
Valve:
This subclass is indented under subclass 635. Subject matter
wherein the heating is applied to a circular band having a
flap or lid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
606 for bonding a valve seat to a conductor.
SEE OR SEARCH CLASS:
29, Metal Working, 890.12 for valve making.
Subclass:
642
Ring or link:
This subclass is indented under subclass 635. Subject matter
wherein the heating is applied to a circular band or a series
of circular bands that are interlocked together.
SEE OR SEARCH THIS CLASS, SUBCLASS:
606 for bonding a circular band to a conductor.
Subclass:
643
Tube (i.e., pipe):
This subclass is indented under subclass 635. Subject matter
wherein the heating is applied to a hollow cylinder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
59.1 for similar subject matter involving resistance
heating.
607 for bonding tubes.
Subclass:
644
Interior surface:
This subclass is indented under subclass 643. Subject matter
wherein the heating is applied to an inner tube wall.
Subclass:
645
Strip (e.g., sheet, etc.):
This subclass is indented under subclass 635. Subject matter
wherein the heating is applied to a thin flexible broad
object.
SEE OR SEARCH THIS CLASS, SUBCLASS:
619 for an inductive heating roller for a strip.
773 for capacitive dielectric heating devices.
SEE OR SEARCH CLASS:
226, Advancing Material of Indeterminate Length, appropriate
subclasses for methods of and apparatus for feeding material
without utilizing the leading or trailing ends to effect
movement of the material.
242, Winding, Tensioning, or Guiding, appropriate subclasses
for apparatus for winding or unwinding a web or strand in
general use, and particularly Cross-Reference Art Collection
909 for heating or cooling that may be appropriate to
winding, tensioning, or guiding elongated material.
266, Metallurgical Apparatus, 103 for miscellaneous heat
treating apparatus for heating metal webs, sheets, or
strands.
432, Heating, 59 for a residual device for heating a
longitudinally moving web, strand, or sheet.
Subclass:
646
Slab (e.g., ingot, etc.):
This subclass is indented under subclass 635. Subject matter
wherein the heating is applied to a thick, nonflexible, broad
object.
Subclass:
647
With workpiece support:
This subclass is indented under subclass 600. Subject matter
wherein a material or an object is contained in, held in
place by, or set to rest upon an arrangement during inductive
heating.
(1) Note. The meaning of "workpiece" is any object or
material that work (in the form of heat) is applied to.
(2) Note. An inductor of the heating device may constitute
the support.
SEE OR SEARCH THIS CLASS, SUBCLASS:
385 for an electrical resistance heater combined with a
container, enclosure, or support for material.
622 for an inductive cooking support structure.
676 for support of the inductor.
774 for workpiece support in which capacitive dielectric
heating is applied.
SEE OR SEARCH CLASS:
373, Industrial Electric Heating Furnaces, appropriate
subclasses for electric furnaces wherein a crucible forms the
work support.
414, Material or Article Handling, for appropriate subclasses
for workpiece handling.
432, Heating, 227 for a residual heating device with
associated work support.
Subclass:
648
Levitation:
This subclass is indented under subclass 647. Subject matter
wherein the workpiece is subjected to electromagnetic forces
in order to maintain it in a position without physical
contact.
Subclass:
649
Materials:
This subclass is indented under subclass 647. Subject matter
wherein the workpiece support is of a particular substance.
SEE OR SEARCH CLASS:
198, Conveyors: Power-Driven, subclass 957 for conveyor
material.
Subclass:
650
With monitoring (e.g., regulating, etc.):
This subclass is indented under subclass 647. Subject matter
including a device for checking or regulating the workpiece
support.
SEE OR SEARCH THIS CLASS, SUBCLASS:
663 for a switching power supply system responsive to a load
condition.
Subclass:
651
Gas environment:
This subclass is indented under subclass 647. Subject matter
wherein an atmospheric condition other than air is
surrounding the workpiece.
(1) Note. A gaseous environment in combination with an
enclosure surrounding the material or object is classified
within.
SEE OR SEARCH THIS CLASS, SUBCLASS:
686 for a microwave heating device with a specific gas
environment.
Subclass:
652
Rotation of workpiece:
This subclass is indented under subclass 647. Subject matter
wherein the workpiece is subjected to a spinning or circular
motion relative about its axis.
(1) Note. To be classified here, the workpiece must be
turning or spinning as the heating is being applied.
SEE OR SEARCH THIS CLASS, SUBCLASS:
657 for a conveyor moving in a curved path.
752 for microwave heating devices with a load support
turntable.
Subclass:
653
Conveyor:
This subclass is indented under subclass 647. Subject matter
wherein the workpiece support provides continuous movement of
the workpiece from one location to another.
(1) Note. No details of a conveyor are classified herein,
for conveyors, per se, see SEARCH CLASS below.
(2) Note. The meaning of "workpiece" is any object or
material that work (in the form of heat) is applied to.
SEE OR SEARCH THIS CLASS, SUBCLASS:
388 for an electrical resistance heater with conveyor
means.
700 for conveying a workpiece in a microwave tunnel
furnace.
775 for conveying a workpiece in which dielectric heating is
applied.
SEE OR SEARCH CLASS:
198, Conveyors: Power-Driven, for appropriate subclasses for
specific conveyor structure.
414, Material or Article Handling, 150 for a chamber of a
type utilized for a heating function and either a driven
device or an inclined flow path for carrying or conveying
material into, within, and out of the chamber.
432, Heating, 239 for a residual heating device having work
feeding, agitating, discharging, or conveying
subcombination.
Subclass:
654
Charge or discharge:
This subclass is indented under subclass 653. Subject matter
wherein a force is applied to guide or move forward the
workpiece onto the conveyor or to move the workpiece from the
conveyor.
Subclass:
655
Multiple stations:
This subclass is indented under subclass 653. Subject matter
wherein the workpiece is conveyed to a plurality of different
work locations.
(1) Note. Work locations or stations, besides heating, may
provide operations such as pressing, cooling, cutting, etc.,
on the workpiece.
Subclass:
656
Plural heating zones:
This subclass is indented under subclass 655. Subject matter
wherein the workpiece is subjected to inductive heating at
two or more stations along the conveyor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
662 for systems with plural inductors having a switching
power supply.
671 for an inductive heating device with plural inductors.
701 for a conveyor with plural microwave heating zones.
776 for a conveyor with plural dielectric heating zones.
Subclass:
657
Curve path:
This subclass is indented under subclass 653. Subject matter
wherein the line of movement of the conveyor is circular or
approximates an arc of a circle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
652 for the rotation of a workpiece.
Subclass:
658
Lift (i.e., vertical movement):
This subclass is indented under subclass 653. Subject matter
wherein the line of movement of the conveyor is vertical (an
up and down direction).
Subclass:
659
Pressure applicator (e.g., clamp, etc.):
This subclass is indented under subclass 647. Subject matter
wherein the workpiece support applies a force on the
workpiece to keep the workpiece from moving about.
(1) Note. This subclass does not include a heating
apparatus wherein the heater and the work are brought into
proper relationship, the heat applied, and the heater and
work then separated. In this subclass, the work must be
moved with respect to the heater during the heating
operation.
(2) Note. Apparatus for molding, shaping, or metal working
are excluded from this subclass. For such excluded subject
matter see SEARCH THIS CLASS, SUBCLASS and SEARCH CLASS
below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
149 for resistance heating.
602 for inductive metal working.
777 for a capacitive dielectric heating device with pressure
applicator.
SEE OR SEARCH CLASS:
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, 405 for processes of molding or shaping plastic
materials within the class definitions which include a
heating step by means of direct application of electrical or
wave energy.
269, Work Holders, appropriate subclasses for a clamp
structure.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, subclass 174 for a molding machine for shaping or
reshaping nonmetals combined with means for applying radiant
energy (e.g., electrical, electromagnetic, etc.) to the
work.
Subclass:
660
With power supply system:
This subclass is indented under subclass 600. Subject matter
wherein electrical energy is fed to an inductive heating
apparatus for operation.
(1) Note. The combination of a specific inductor and a
power supply, therefor, where the power supply is recited by
name only and is not classified in this or the indented
subclass. Details of an inductor and power supply must be
recited.
SEE OR SEARCH THIS CLASS, SUBCLASS:
482 for an electrical resistance heater with a power supply
and control means.
702 for a microwave heating device with a control system.
778 for a power supply system for capacitive dielectric
heating systems.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
appropriate subclasses for the miscellaneous power
distribution and supply systems.
323, Electricity: Power Supply or Regulation Systems,
appropriate subclasses for the miscellaneous systems for
controlling phase angle or voltage and/or current magnitude,
and for the miscellaneous transformer and impedance systems.
363, Electric Power Conversion Systems, appropriate
subclasses for inverter and/or converter systems.
Subclass:
661
Power switching:
This subclass is indented under subclass 660. Subject matter
wherein a device controls the on and off periods of energy
being supplied from the power supply to the inductive heating
apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
715 for a microwave heating device with power switching.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 112
for switching systems.
Subclass:
662
Plural load inductors:
This subclass is indented under subclass 661. Subject matter
wherein the power switching device controls the energy being
supplied to two or more inductive heating apparatuses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
476 for electrical resistance heating with plural separate
heating devices.
656 for a workpiece support with plural heating zones.
671 for a power supply with plural inductors.
717 for a microwave heating device with plural power
supplies.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 11
for plural load circuit systems.
Subclass:
663
Condition responsive:
This subclass is indented under subclass 661. Subject matter
wherein the on and off periods of the power supplied to the
inductive heating apparatus are automatically regulated
according to a preselected result.
(1) Note. The automatic controlling device must include
means to sense a condition and means to vary a condition in
response to the sensed condition. Means to maintain a
condition constant are included as an automatic control where
the system includes means to sense deviations from the
condition and to adjust the system to maintain the desired
value constant.
SEE OR SEARCH THIS CLASS, SUBCLASS:
704 for a microwave heating device with a load condition
sensor.
779 for capacitive dielectric heating systems with automatic
control.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
appropriate subclasses for the miscellaneous power
distribution and supply systems.
323, Electricity: Power Supply or Regulation Systems,
appropriate subclasses for the miscellaneous systems for
controlling phase angle or voltage and/or current magnitude,
and for the miscellaneous transformer and impedance systems.
361, Electricity: Electrical Systems and Devices.
363, Electric Power Conversion Systems.
Subclass:
664
Input monitoring:
This subclass is indented under subclass 663. Subject matter
including an arrangement for checking or regulating input
power supplied to the inductive heating apparatus.
Subclass:
665
Load sensing:
This subclass is indented under subclass 663. Subject matter
wherein a device is indicative of or condition responsive to
a physical state of a material or an object being heated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
626 for an inductive cooking system with load sensing.
704 for a microwave heating device with a load condition
sensor.
Subclass:
666
With tuning:
This subclass is indented under subclass 665. Subject matter
wherein the sensing device matches electrical parameters of
an input energy signal with that of an impedance of the
load.
Subclass:
667
Temperature:
Subject matter under 665 wherein the sensing device is
responsive to a thermal change of the load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
494 for electrical resistance heating with a thermally
responsive control system.
627 for an induction cooking system responsive to
temperature.
710 for a microwave heating system with temperature
sensing.
SEE OR SEARCH CLASS:
340, Communications: Electrical, 584 for an indicating
system responsive to thermal conditions.
374, Thermal Measuring and Testing, appropriate subclasses
for temperature measuring devices.
Subclass:
668
With protection:
This subclass is indented under subclass 661. Subject matter
wherein an arrangement is provided to prevent damage to the
power switching device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
716 for microwave heating devices having a power switching
system with detectors.
723 for a microwave heating device with interlock circuiting
and an additional safety feature.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, 1 for the
safety and protection of systems and devices.
Subclass:
669
Polyphase:
This subclass is indented under subclass 661. Subject matter
wherein the power supply provides two or more phases of
alternating current.
Subclass:
670
With specific transformer:
This subclass is indented under subclass 660. Subject matter
wherein a device is provided to transfer power from one or
more circuits to one or more other circuits at a constant
frequency and with voltage and current changes in direct
proportion to a ratio of turns between a primary coil winding
and a secondary coil winding.
(1) Note. A specific structure of the transformer core for
modifying the magnetic flux is appropriate under this
subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
630 for an inductive fluid or a liquid heater with a
specific core or coil structure.
SEE OR SEARCH CLASS:
336, Inductor Devices, appropriate subclasses for a
transformer and core structure.
Subclass:
671
With plural load inductors:
This subclass is indented under subclass 660. Subject matter
wherein an arrangement is provided to supply power to two or
more inductive heating apparatuses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
662 for an inductive switching power supply for plural
inductors.
656 for an inductive heater with workpiece support for a
plurality of heating zones.
Subclass:
672
Specific inductor configuration:
This subclass is indented under subclass 600. Subject matter
wherein a wire wound around an iron core or a coil having a
distinctive external contour or unique shape induces currents
for inductive heating.
SEE OR SEARCH THIS CLASS, SUBCLASS:
624 for an inductive cooking system with a core or coil
structure.
635 for an inductive device specifically designed for
various heating applications.
SEE OR SEARCH CLASS:
29, Metal Working, subclass 620 for methods of making
coils.
336, Inductor Devices, appropriate subclasses for the
structure of transformers and inductive reactors of general
utility and 225 for coils of special configuration.
600, Surgery, subclass 9, 10, and 15 for inductor coils for
use in high frequency diathermy and for treatment of the
human body.
Subclass:
673
U-coil section:
This subclass is indented under subclass 672. Subject matter
wherein the coil or core configuration is in a fork-like
shape.
Subclass:
674
Cylindrical coil:
This subclass is indented under subclass 672. Subject matter
wherein the coil or core configuration is in a cylinder
shape.
Subclass:
675
Planar coil:
This subclass is indented under subclass 672. Subject matter
wherein the coil or core configuration lies substantially in
a single plane.
Subclass:
676
With inductor support:
This subclass is indented under subclass 672. Subject matter
wherein the inductor is held in place in close proximity to a
conductive workpiece (material or object).
Subclass:
677
With cooling arrangement:
This subclass is indented under subclass 672. Subject matter
including an apparatus to remove heat from the inductor.
(1) Note. This subclass does not provide for inductive
heaters combined with devices for cooling only the work.
Such excluded subject matter may be found in the classes
which provide for the apparatus which treats the specific
materials and object which are cooled.
SEE OR SEARCH THIS CLASS, SUBCLASS:
632 for an inductive heating system having a cooling
arrangement.
SEE OR SEARCH CLASS:
336, Inductor Devices, 55 for inductor devices with a
temperature modifier.
Subclass:
678
MICROWAVE HEATING:
This subclass is indented under the class definition.
Subject matter for the electric heating of a material or
object by applying a field of electromagnetic wave radiation
in a frequency range from about 1 gigahertz to 3 gigahertz.
(1) Note. The work may be exposed to the emanations of a
free space antenna or placed at an appropriate position in a
wave guide or resonant cavity, etc.
(2) Note. For claims reciting both food (edible) and
nonfood (nonedible) heating by an electric heating device or
method, classification is proper for Class 219. If the
claims recited are limited to food (edible) heating methods,
composition, product, or processes, classification is proper
for Class 426.
SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids, subclass 1
by electromagnetic energy.
99, Foods and Beverages: Apparatus, subclass 451 for
apparatus for treating food by radiant electrical energy and
digest 14 for cooking by induction heating.
126, Stoves and Furnaces, 19 and 273+ for oven structure.
174, Electricity: Conductors and Insulators, subclass 35
for shielded or screened anti-inductive structures.
204, Chemistry: Electrical and Wave Energy, 193 for
treating substances with electrical or radiant energy to
effect a chemical change.
250, Radiant Energy, 324 for a method and apparatus for a
fluent material or object for corona irradiation; subclasses
428+ for a method and apparatus for fluent material
containment, support, or transfer means with or without an
irradiating nuclear or electromagnetic radiation source; and
subclasses 453.11+ for methods and apparatus to support an
object for nuclear or electromagnetic radiation.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, 405 for direct application of electrical or wave
energy to work.
315, Electric Lamp and Discharge Devices: Systems, 39 for a
discharge device load with a distributed parameter-type
transmission line, subclasses 39.51+ for a distributed
parameter resonator-type magnetron, and subclasses 94+ with a
cathode or cathode heater supply circuit.
323, Electricity: Power Supply or Regulation Systems,
appropriate subclasses for power supplies and regulators of
electrical device systems.
331, Oscillators, appropriate 86 for a magnetically
controlled space discharge device (e.g., magnetron).
333, Wave Transmission Lines and Networks, appropriate
subclasses for wave transmission lines and networks,
particularly 24 for coupling networks and subclasses 219+
for resonators (e.g., cavity or wave guides).
334, Tuners, appropriate subclasses for tuners which may be
adapted for use as a heating device, especially 26 for
tuning units which may be adapted for use as a heating device
and which have means for automatically centering the
frequency to which the tuner is adjusted.
342, Communications: Directive Radio Wave Systems and
Devices (e.g., Radar, Radio Navigation), appropriate
subclasses for radio wave energy.
343, Communications: Radio Wave Antennas, 700 for antenna
structures.
363, Electric Power Conversion Systems, appropriate
subclasses for an inverter and/or converter system.
392, Electric Resistance Heating Devices, for heating devices
using resistance heaters.
422, Chemical Apparatus and Process Disinfecting,
Deodorizing, Preserving, or Sterilizing, subclass 21 and 22+
for processes of the class using microwave or other
electrical or electromagnetic radiation and subclasses 186+
for apparatus for the chemical treatment of material using
radiant electrical energy.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, 174 for means of applying electrical or wave
energy directly to work.
426, Food or Edible Material: Processes, Compositions, and
Products, 107 for a packaged or wrapped product having a
specific electrical or wave feature and subclasses 234+ for
the direct application of electrical or wave energy to food
material.
600, Surgery, 9 for a magnetic field applied to the body for
therapeutic purposes.
606, Surgery, 27 and 32+ for heat or electrical
application.
607, Surgery: Light, Thermal, and Electrical Application, 1
for light and thermal application to the body and subclasses
114 through 156 for an electrical energy applicator.
Subclass:
679
With diverse device:
This subclass is indented under subclass 678. Subject matter
wherein both a microwave heater and a functionally different
type of device are provided for in an arrangement.
(1) Note. A functionally different type of device is a
device that performs a function other than heating, for
combination with different types of heaters see SEARCH THIS
CLASS, SUBCLASS below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
601 for inductive heating with diverse-type heaters.
680 for microwave heating with diverse-type heaters.
Subclass:
680
With diverse-type heating:
This subclass is indented under subclass 678. Subject matter
wherein both a microwave heating arrangement and a different
type of heater are provided for in a heating apparatus.
(1) Note. Examples of different types of heaters are
resistance heaters, incandescent lamps, infrared lamps, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
601 for inductive heating with diverse-type heaters.
Subclass:
681
Convection heating:
This subclass is indented under subclass 680. Subject matter
wherein the diverse-type heating is transferring heat to a
load by a bodily movement of heated particles of matter.
SEE OR SEARCH THIS CLASS, SUBCLASS:
400 for heat transfer by convection.
757 for an enclosed cavity structure with cooling or
ventilation.
SEE OR SEARCH CLASS:
126, Stoves and Furnaces, 21 for ventilated ovens.
Subclass:
682
Steam generating:
This subclass is indented under subclass 681. Subject matter
wherein the convection heating produces vapor particles
(mixture of gas and liquid particles).
SEE OR SEARCH THIS CLASS, SUBCLASS:
401 for a resistive heating device generating steam.
731 for cookware with heat exchange by fluent material.
Subclass:
683
Gas burner:
This subclass is indented under subclass 681. Subject matter
wherein the convection heating is produced by burning a
gaseous fuel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
126 for gas burning stoves and furnaces.
Subclass:
684
Tunnel type:
This subclass is indented under subclass 681. Subject matter
wherein the convection heating takes place in an elongated
hollow cavity with opening or closing ends.
SEE OR SEARCH THIS CLASS, SUBCLASS:
698 for a microwave tunnel furnace.
Subclass:
685
Resistive heating:
This subclass is indented under subclass 680. Subject matter
wherein the diverse type of heating is applying an electric
current through a load or conductor which produces an
impedance to the current flow that results in a dissipation
of energy in a form of heat.
SEE OR SEARCH THIS CLASS, SUBCLASS:
50 for resistance heating.
SEE OR SEARCH CLASS:
392, Electric Resistance Heating Devices, for heating devices
using resistance heaters.
Subclass:
686
Gas environment (e.g., pressurized, etc.):
This subclass is indented under subclass 678. Subject matter
wherein an atmospheric condition other than air is
surrounding a material or an object to be heated.
(1) Note. A gaseous environment in combination with an
enclosure surrounding the material or object is classified
within.
SEE OR SEARCH THIS CLASS, SUBCLASS:
440 for an electrical resistance heating vessel with
pressure generating or maintaining means.
651 for inductive heating under a gas environment.
Subclass:
687
Fluid heater:
This subclass is indented under subclass 678. Subject matter
wherein a microwave heating apparatus is arranged to heat a
fluent material.
(1) Note. A fluid material is one that flows easily from
container to container and may be a fine granular material or
just air.
SEE OR SEARCH THIS CLASS, SUBCLASS:
628 for inductive heating of fluid or liquid.
772 for apparatus for dielectric heating a fluent material
where the electromagnetic field acts directly on the fluent
material.
SEE OR SEARCH CLASS:
122, Liquid Heaters and Vaporizers.
137, Fluid Handling, subclass 341 for fluid handling
apparatus having an electric heater.
138, Pipes and Tubular Conduits, subclass 33 for fluid
conduits with electric thawing and freeze protection means.
166, Wells, subclass 60 for an electrical heater in a well
and subclass 248 for processes of passing electric current or
electrical wave energy through earth for treating it.
392, Electric Resistance Heating Devices, 301 for fluid
heating by electric resistance heating devices, also see
subclass 341 for electric well heaters.
Subclass:
688
Water:
This subclass is indented under subclass 687. Subject matter
wherein the fluid being heated is a chemical compound of two
hydrogen atoms combined with one oxygen atom.
SEE OR SEARCH CLASS:
126, Stoves and Furnaces, for general heat applying apparatus
having other than electrical heating means, subclasses
344-363.1 for a liquid heater that may include a kettle, a
steam generator, stove pipe for use with a stove, and a
domestic water heater or boiler (e.g., kitchen boiler, range
boiler, etc.) for use with a stove or furnace.
392, Electric Resistance Heating Devices.
Subclass:
689
Beverage (e.g., coffee, etc.):
This subclass is indented under subclass 687. Subject matter
wherein the fluid being heated is any drinkable liquid.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 451 for
apparatus for treating food by radiant electrical energy and
subclasses 275+ for beverage makers.
Subclass:
690
Waveguide applicator:
This subclass is indented under subclass 678. Subject matter
wherein the microwave energy passes through an elongated
hollow conductor which confines a traveling microwave
propagation to its physical boundaries to heat a material or
an object.
SEE OR SEARCH CLASS:
333, Wave Transmission Lines and Networks, 248 for waveguide
elements and components.
Subclass:
691
Slotted:
This subclass is indented under subclass 690. Subject matter
wherein a narrow slit opening is located on a waveguide
applicator.
Subclass:
692
Meander (e.g., zigzag, etc.):
This subclass is indented under subclass 691. Subject matter
wherein an inlet and outlet openings are provided in a
serpentine configuration on the waveguide applicator.
Subclass:
693
Having load passage:
This subclass is indented under subclass 691. Subject matter
wherein a pair of slotted inlet and outlet openings are
aligned at diametrically opposite locations on the waveguide
applicator through which a material or an object is passed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
698 for a microwave tunnel furnace.
Subclass:
694
With dummy load:
This subclass is indented under subclass 690. Subject matter
wherein a device dissipates microwave energy entering the
waveguide applicator not adsorbed by the workpiece.
SEE OR SEARCH CLASS:
333, Wave Transmission Lines and Networks, subclass 22 for
dissipating terminations for long lines.
Subclass:
695
Input power port arrangement:
This subclass is indented under subclass 690. Subject matter
wherein an energy source is introduced in a specific
orientation or placement in the waveguide applicator.
SEE OR SEARCH THIS CLASS, SUBCLASS:
746 for a microwave heating device with a feed structure for
field modification.
Subclass:
696
With tuning:
This subclass is indented under subclass 695. Subject matter
wherein the input power port is adjusted to optimize an
amount of microwave energy being applied to a load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
750 for a microwave heating device with feed structure
having tuning or a particular mode for field modification.
SEE OR SEARCH CLASS:
333, Wave Transmission Lines and Networks, subclass 17.3 for
a system with impedance matching and subclasses 223+ for
resonators with tuning means.
334, Tuners, appropriate subclasses for tuners which may be
adapted for use as a heating device, especially 26 for
tuning units which may be adapted for use as a heating device
and which have means for automatically centering the
frequency to which the tuner is adjusted.
Subclass:
697
Plural feed:
This subclass is indented under subclass 695. Subject matter
wherein two or more input power ports are located within the
waveguide applicator.
SEE OR SEARCH THIS CLASS, SUBCLASS:
701 for a tunnel furnace with plural heating zones.
Subclass:
698
Tunnel furnace:
This subclass is indented under subclass 678. Subject matter
wherein an elongated hollow cavity with open ends having
microwave conducting interior walls is provided.
(1) Note. A tunnel furnace may also be called a tunnel
oven.
SEE OR SEARCH THIS CLASS, SUBCLASS:
684 for a microwave tunnel-type oven with convection
heating.
Subclass:
699
With leakage suppression:
This subclass is indented under subclass 698. Subject matter
wherein an arrangement is provided to reduce or prevent
microwave energy from escaping the open ends of the tunnel
furnace.
(1) Note. The reduction of microwave energy may be by
filtering, shielding, reflection, or absorption.
SEE OR SEARCH THIS CLASS, SUBCLASS:
736 for radiation protection of microwave energy.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 35 for
shielded or screened anti-inductive structure.
Subclass:
700
Conveyor:
This subclass is indented under subclass 698. Subject matter
wherein a workpiece is supported by a continuously moving
assembly through a tunnel furnace.
(1) Note. No details of a conveyor are classified within,
for conveyors, per se, see SEARCH CLASS below.
(2) Note. The meaning of "workpiece" is any object or
material that work (in the form of heat) is applied to.
SEE OR SEARCH THIS CLASS, SUBCLASS:
388 for an electrical resistance heating device with
conveyor means.
653 for an inductive heating device with conveyor.
775 for conveying a workpiece in which capacitive dielectric
heating is applied.
SEE OR SEARCH CLASS:
198, Conveyors: Power-Driven, appropriate subclasses for a
conveyor structure.
414, Material or Article Handling, 150 for a chamber of a
type utilized for a heating function and either a driven
device or an inclined flow path for carrying or conveying
material into, within, and out of the chamber.
Subclass:
701
Plural heating zones:
This subclass is indented under subclass 700. Subject matter
wherein the workpiece is subjected to microwave heating at
two or more stations along the conveyor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
656 for a conveyor with plural inductive heating zones.
776 for a conveyor with plural capacitive dielectric heating
zones.
Subclass:
702
With control system:
This subclass is indented under subclass 678. Subject matter
wherein a device is provided that indicates, maintains, or
changes a condition on how the microwave energy acts upon a
material or an object to be heated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
428 for an electrical resistance heating device with power
supply and voltage or current regulation or current control
means.
625 for inductive cooking with a condition responsive
system.
663 for an inductive heating switching power supply with a
condition responsive system.
779 for a capacitive dielectric heating device with a
condition responsive power supply system.
Subclass:
703
Defrost:
This subclass is indented under subclass 702. Subject matter
wherein a device is controlling the microwave heating
apparatus to remove frost or ice from a material or an object
so as to thaw out or become unfrozen.
SEE OR SEARCH CLASS:
244, Aeronautics, 134 for ice prevention.
426, Food or Edible Material: Processes, Compositions, and
Products, subclass 524 for cooling, freezing, or treating
cooled or frozen product; e.g., thawing, etc.
Subclass:
704
Load condition sensor:
This subclass is indented under subclass 702. Subject matter
wherein a device is indicative of or responding to a physical
state of the material or object.
SEE OR SEARCH THIS CLASS, SUBCLASS:
626 for an inductive cooking system with load sensing.
665 for an inductive heating device with load sensing
responsive switching power supply.
Subclass:
705
Plural diverse types:
This subclass is indented under subclass 704. Subject matter
wherein the sensing device is indicative of or responding to
more than one condition of the load.
(1) Note. A plural sensing device must include two or more
conditions being sensed or different sensors which may or may
not be at separate locations.
Subclass:
706
By ultrasonic or acoustic:
This subclass is indented under subclass 704. Subject matter
wherein the sensing device is responsive to sound waves at or
above audible frequency.
SEE OR SEARCH CLASS:
73, Measuring and Testing, for measuring and testing
devices.
367, Communications, Electrical: Acoustic Wave Systems and
Devices, for acoustic wave communications.
Subclass:
707
Gas or vapor:
This subclass is indented under subclass 704. Subject matter
wherein the sensing device is responsive to (a) a state of
matter being of an aeriform fluid having an ability to spread
out and occupy an entire enclosure in which it is present or
(b) an aeriform fluid having particles of liquid mixed within
having an ability to spread out and occupy an entire
enclosure in which it is present.
(1) Note. Vapor may also be called fog, mist, humidity, or
steam.
SEE OR SEARCH CLASS:
73, Measuring and Testing, for the measuring and testing of
fluid pressure.
Subclass:
708
Weight:
This subclass is indented under subclass 704. Subject matter
wherein the sensing device is indicative of a force of
gravity acting on the load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
518 for resistive heating with automatic switching
responsive to weight, position, or the presence of the body
to be heated.
SEE OR SEARCH CLASS:
177, Weighing Scales, for weighing devices.
Subclass:
709
Field intensity/reflection:
This subclass is indented under subclass 704. Subject matter
wherein the sensing device is responding to feedback from a
quantity of microwave energy being applied to the load.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, 600 for
impedance, admittance, or other quantities representative of
electrical stimulus response relationships.
Subclass:
710
Temperature:
This subclass is indented under subclass 704. Subject matter
wherein the sensing device is responsive to an increase or
decrease in thermal change to the load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
494 for the automatic regulating of a power supply
responsive to thermal properties.
627 for inductive cooking with a temperature sensor.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 325 for an
automatic control and subclass 421 for a cooking device with
an impaling temperature control device.
374, Thermal Measuring and Testing, 100 for temperature
measurement.
Subclass:
711
By infrared:
This subclass is indented under subclass 710. Subject matter
wherein the temperature sensor is responsive to the radiation
of wavelengths just beyond the red end of the visible
spectrum.
SEE OR SEARCH CLASS:
374, Thermal Measuring and Testing, 120 for temperature
measurement in spaced noncontact relationship to specimens.
Subclass:
712
Probe:
This subclass is indented under subclass 710. Subject matter
wherein the temperature sensor penetrates into the load and
senses an interior temperature.
SEE OR SEARCH THIS CLASS, SUBCLASS:
516 for an electric resistance heater with a thermally
responsive device insertable into or in direct contact with
heated material.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 421 for a
working device with impaling-type temperature serving means.
374, Thermal Measuring and Testing, subclass 155 for a
temperature measurement with piercing element.
Subclass:
713
Wireless type:
This subclass is indented under subclass 712. Subject matter
wherein the probe transmits through the air the temperature
of the load to the control system.
Subclass:
714
Remote (e.g., card, etc.):
This subclass is indented under subclass 702. Subject matter
wherein a device is controlling the microwave heating
apparatus from a distance or transporting the controlling
device to another microwave heating apparatus.
SEE OR SEARCH CLASS:
235, Registers, 435 for coded record sensors.
340, Communications: Electrical, 825 for selective
communication.
704, Data Processing: Speech Signal Processing, Linguistics,
Language Translation, and Audio Compression/Decompression,
subclass 274 for speech signal controlled systems.
Subclass:
715
Power switching:
This subclass is indented under subclass 702. Subject matter
wherein a device controls on and off periods of energy being
supplied from the power supply to the microwave heating
apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
661 for an inductive heating device with a switching power
supply system.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems.
363, Electric Power Conversion Systems.
Subclass:
716
With detector:
This subclass is indented under subclass 715. Subject matter
wherein a device senses the power being supplied to the
microwave heating apparatus.
Subclass:
717
Plural power supplies:
This subclass is indented under subclass 715. Subject matter
wherein two or more power sources are feeding microwave
energy to the load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
476 for an electric resistance heating device with plural
separate heaters.
662 for an inductive heating device with a switching power
supply for plural load inductors.
697 for a waveguide applicator with plural input power.
701 for a microwave tunnel furnace with plural heating
zones.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 11
for a plural load circuit system and subclasses 43+ for
plural supply circuits or sources.
Subclass:
718
Having duty cycle:
This subclass is indented under subclass 715. Subject matter
wherein a device is controlling an intermittently operating
microwave heating apparatus from an on-time period to an
off-time period.
SEE OR SEARCH THIS CLASS, SUBCLASS:
492 for an electrical resistance heating device with
automatic regulating or control means comprising timing or
cycling means.
507 for an electrical resistance heating device with current
connection and/or disconnection means (e.g., switch).
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 112
for switching systems.
Subclass:
719
With timer:
This subclass is indented under subclass 702. Subject matter
wherein a device controls an operating timing period or the
duration of a microwave heating apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
492 for an electric resistance heating device with automatic
regulating or control means comprising timing or cycling
means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 38
for a cam operated resettable interval timer for an oven or
range.
340, Communications: Electrical, subclass 309.15 for timer
controlled systems.
368, Horology: Time Measuring Systems or Devices, 1 for a
timer controlled by a disparate device and subclasses 10+ for
a timer combined with a disparate device.
Subclass:
720
With display or alarm:
This subclass is indented under subclass 702. Subject matter
wherein the sensing device produces a humanly perceptive
visual or hearing indication of a condition sensed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
506 for an electric resistance heating device with signal or
indicating means.
SEE OR SEARCH CLASS:
116, Signals and Indicators, 67 for alarms.
340, Communications: Electrical, 500 for alarms or display
communications for condition responsive indicating systems.
Subclass:
721
Starting circuitry:
This subclass is indented under subclass 702. Subject matter
wherein a device controls the power supply at the beginning
of the energization of a microwave heating apparatus.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 901 for starting circuit and subclass 908 for
inrush current limiters.
361, Electricity: Electrical Systems and Devices, for
control devices.
363, Electric Power Conversion Systems, subclass 49 with
starting arrangement.
Subclass:
722
Interlock circuitry and structure:
This subclass is indented under subclass 702. Subject matter
wherein a device controls deenergizing a power source by
opening a door handle or an access cover of a microwave
heating apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
739 for a microwave heating device with a door assembly for
leakage prevention.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 50.01 for
interlocking switch.
307, Electrical Transmission or Interconnection Systems, 112
for switching systems.
Subclass:
723
With additional safety feature:
This subclass is indented under subclass 722. Subject matter
wherein an additional safeguard other than the interlock
device provides deenergization of the power supply when a
door or access cover is opened.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, 1 for the
safety and protection of systems and devices.
Subclass:
724
With latch assembly:
This subclass is indented under subclass 722. Subject matter
wherein the interlock device is locked into a specific
condition or state and must be energized or deenergized to
change its condition or state.
SEE OR SEARCH CLASS:
126, Stoves and Furnaces, subclass 197 for stove doors and
windows combined latch and operator.
292, Closure Fasteners, for fastening objects together to
form a closure.
Subclass:
725
Cookware (e.g., vessel, utensil, etc.):
This subclass is indented under subclass 678. Subject matter
wherein a supporting or containing structure is subjected to
microwave energy to warm, defrost, or cook edible material
(food).
(1) Note. Also may be called a cooking utensil or cooking
vessel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
620 for cooking by inductive heating through a heat
exchange.
771 for capacitive dielectric heating of food.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 451 for
apparatus for treating food by radiant electrical energy and
digest 14 for induction heating.
126, Stoves and Furnaces, for general heat applying apparatus
having other than electrical heating means, subclasses
373.1-390.1 for a liquid heater having an open-top vessel
that may include a lid.
229, Envelopes, Wrappers, and Paperboard Boxes, 902 for a
box for prepared or processed food.
426, Food or Edible Material: Processes, Compositions, and
Products, 106 for packaged or wrapped product and subclasses
234+ for the treatment of a food product by electrical or
wave energy.
428, Stock Material or Miscellaneous Articles, 34.1 for a
hollow or container-type article.
Subclass:
726
With food mixer:
This subclass is indented under subclass 725. Subject matter
including a device to stir or agitate an edible material
(food) during microwave cooking.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 348 for a
cooking device with stirring means.
366, Agitating.
Subclass:
727
Expandable:
This subclass is indented under subclass 725. Subject matter
wherein the cookware provides an ability to increase in size
and volume during microwave cooking.
SEE OR SEARCH CLASS:
426, Food or Edible Material: Processes, Compositions, and
Products, subclass 111 for a packaged or wrapped product
having a telescoping feature to allow for a decreased package
dimension or having a packaging structure cooperating with
food expansion.
Subclass:
728
With field modifier:
This subclass is indented under subclass 725. Subject matter
wherein the cookware provides an arrangement to vary the
microwave energy intensity at a specific location.
SEE OR SEARCH THIS CLASS, SUBCLASS:
745 for a microwave heating device with a field
modification.
SEE OR SEARCH CLASS:
426, Food or Edible Material: Processes, Compositions, and
Products, subclass 107 for a packaged or wrapped product
having a specific electrical or wave energy feature.
Subclass:
729
Shielding:
This subclass is indented under subclass 728. Subject matter
wherein the cookware provides an arrangement to prevent
microwave energy from heating a specific location.
SEE OR SEARCH THIS CLASS, SUBCLASS:
736 for a microwave heating device with radiation
protection.
Subclass:
730
With heat exchange (e.g., susceptor, etc.):
This subclass is indented under subclass 725. Subject matter
wherein the cookware has highly absorbing microwave energy
properties that convert microwave energy into thermal energy
and transfer the thermal energy to an edible material
(food).
SEE OR SEARCH THIS CLASS, SUBCLASS:
634 for inductive heating with a heat exchange susceptor.
759 for general heat exchange devices, noncookware related.
SEE OR SEARCH CLASS:
426, Food or Edible Material: Processes, Compositions, and
Products, subclass 109 for a packaged or wrapped product
having heat exchange material.
Subclass:
731
By fluent material (e.g., steaming, boiling, or frying,
etc.):
This subclass is indented under subclass 730. Subject matter
wherein the heat exchange is arranged to transfer heat to a
fluent material.
(1) Note. A fluent material is one that flows easily from
container to container and may be a fine granular material,
liquid, or air.
SEE OR SEARCH THIS CLASS, SUBCLASS:
401 for an electrical resistance oven with steam generating
means.
682 for a microwave heating device combined with steam
generating.
772 for apparatus for the capacitive dielectric heating of a
fluent material where the electromagnetic field acts directly
on the fluent material.
Subclass:
732
With stand or handle:
This subclass is indented under subclass 725. Subject matter
wherein (a) the cookware is supported in an upright position
by legs, feet, or pedestal or (b) a part is provided on or
attaches to the cookware for grasping or gripping the
cookware by hand or a mechanical apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
762 for a microwave heating device with load support.
SEE OR SEARCH CLASS:
16, Miscellaneous Hardware, 110.1, especially subclasses 422+
and 430+ for handles.
220, Receptacles, subclass 212.5, 710.5, and 752 for a
container with handle.
426, Food or Edible Material: Processes, Compositions, and
Products, subclass 110 for a packaged or wrapped product
having package attached support means.
Subclass:
733
With drainage:
This subclass is indented under subclass 725. Subject matter
wherein an arrangement to draw or carry away liquid from a
region containing edible material is used during cooking.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 425 and 444+
for a cooking device having drip segregating, receiving, or
directing means.
Subclass:
734
With cover:
This subclass is indented under subclass 725. Subject matter
wherein a lid is arranged to place on, over, or in front of
to seal or enclose edible material within the cookware.
Subclass:
735
Having vent:
This subclass is indented under subclass 734. Subject matter
wherein a small opening in the cookware cover provides for a
release of gas or vapor within the cookware.
SEE OR SEARCH THIS CLASS, SUBCLASS:
757 for a microwave heating cavity with cooling or
ventilation.
SEE OR SEARCH CLASS:
220, Receptacles, 360 for a container having a closure with
vent means and subclass 913 for a ventilated container.
426, Food or Edible Material: Processes, Compositions, and
Products, subclass 118 for a packaged or wrapped product
having packaging structure cooperation with food generated
gas.
Subclass:
736
Radiation protection:
This subclass is indented under subclass 678. Subject matter
wherein an arrangement is provided to eliminate any exposure
to microwave energy emissions outside of a confined zone.
(1) Note. A confined zone may be a microwave oven; i.e., a
closed cavity or tunnel furnace.
SEE OR SEARCH THIS CLASS, SUBCLASS:
699 for a microwave-tunnel furnace with leakage
suppression.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 35 for
shielded or screened anti-inductive structures.
250, Radiant Energy, subclass 505.1 for radiation shielded
receptacles for a radioactive source.
315, Electric Lamp and Discharge Devices: Systems, subclass
85 for electromagnetic wave radiation preventing or
shielding means.
361, Electricity: Electrical Systems and Devices, subclass
424 for a shielding device for housings and mounting
assemblies with electrical components.
Subclass:
737
With leakage detector:
This subclass is indented under subclass 736. Subject matter
wherein a device is indicative of the presence of
electromagnetic radiation from a specific region of a
microwave heating apparatus.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, 95 with a
waveguide or long line.
Subclass:
738
With leakage prevention:
This subclass is indented under subclass 736. Subject matter
wherein microwave energy is impeded from escaping a cavity.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 35
for anti-inductive shielded or screened conductors and
insulators.
333, Wave Transmission Lines and Networks, subclass 12 for
transmission line inductive or radiation interference
reduction systems.
Subclass:
739
Door assembly:
This subclass is indented under subclass 738. Subject matter
wherein a movable structure which turns on a hinge or slides
on a groove is used for opening or closing an access entrance
to a cavity.
SEE OR SEARCH CLASS:
126, Stoves and Furnaces, subclass 190 for stove doors and
windows.
Subclass:
740
With screen or window:
This subclass is indented under subclass 739. Subject matter
wherein a door panel consisting of a mesh or grid or
transparent material is held in place by a door assembly.
SEE OR SEARCH CLASS:
126, Stoves and Furnaces, subclass 200 for stove doors and
windows having a transparent panel.
Subclass:
741
With choke or seal:
This subclass is indented under subclass 739. Subject matter
wherein a device is used to prevent microwave energy from
escaping past the door assembly.
SEE OR SEARCH CLASS:
333, Wave Transmission Lines and Networks, subclass 12 for a
transmission line inductive or radiation interference
reduction system.
Subclass:
742
Slotted choke:
This subclass is indented under subclass 741. Subject matter
wherein the choke device comprises narrow slit openings.
Subclass:
743
Choke cavity cover:
This subclass is indented under subclass 741. Subject matter
wherein an arrangement is provided for enclosing the choke.
Subclass:
744
Absorption:
This subclass is indented under subclass 738. Subject matter
wherein microwave energy is absorbed as a result of its
interaction with leakage prevention materials.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 35
for shielded materials, stock, and screen rooms.
342, Communications: Directive Radio Wave Systems and
Devices (e.g., Radar, Radio Navigation), 1 for a radio wave
absorber.
Subclass:
745
Field modification:
This subclass is indented under subclass 678. Subject matter
wherein the microwave energy is altered in its distribution
throughout a cavity or to a load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
728 for microwave cookware with a field modifier.
Subclass:
746
With power feed structure:
This subclass is indented under subclass 745. Subject matter
wherein an apparatus receives microwave energy that is being
supplied to the cavity from a power source.
SEE OR SEARCH THIS CLASS, SUBCLASS:
695 for a microwave waveguide applicator with an input power
port arrangement.
SEE OR SEARCH CLASS:
333, Wave Transmission Lines and Networks, 219 for
resonators, waveguide elements, and components.
Subclass:
747
Phase shifting:
This subclass is indented under subclass 746. Subject matter
wherein a fractional or residual part of the microwave energy
is changed in frequency to match the impedance of the cavity
and load.
Subclass:
748
Radiator (e.g., antenna, etc.):
This subclass is indented under subclass 746. Subject matter
wherein the feed structure provides a device which spreads
and distributes the microwave energy into the cavity.
SEE OR SEARCH CLASS:
343, Communications: Radar Wave Antennas, for radio wave
antennas.
Subclass:
749
Rotating:
This subclass is indented under subclass 748. Subject matter
wherein the radiator (antenna) moves about its axis while
radiating microwave energy.
Subclass:
750
With tuning or particular modes:
This subclass is indented under subclass 746. Subject matter
wherein (a) an arrangement matches electrical parameters of
an input microwave energy signal with that of an impedance of
the cavity or a load within or (b) a power source generates a
specific form of wave propagation within the cavity.
(1) Note. Electrical parameters are commonly voltage,
current, amplitude, or frequency.
SEE OR SEARCH THIS CLASS, SUBCLASS:
696 for a microwave waveguide applicator having an input
power port arrangement with tuning.
SEE OR SEARCH CLASS:
333, Wave Transmission Lines and Networks, 231 for cavity
resonators with tuning.
Subclass:
751
Mixer (e.g., rotating stirrer, etc.):
This subclass is indented under subclass 745. Subject matter
wherein a device is provided which combines and distributes
microwave energy of various strengths within the cavity.
Subclass:
752
By load support movement:
This subclass is indented under subclass 745. Subject matter
wherein the load is contained in, held in place by, or set to
rest upon a moving device within the cavity.
SEE OR SEARCH THIS CLASS, SUBCLASS:
388 for an electric resistance heating device with means
whereby material is continuously passed through a heated
area.
700 for a microwave tunnel furnace with a conveyor.
762 for a microwave heating device with a load support.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 421 for cooking movably
or adjustably supported and subclasses 443+ for a cooking
device with conveyor or movably supported.
Subclass:
753
Horizontal and vertical:
This subclass is indented under subclass 752. Subject matter
wherein the load support provides movement in both
perpendicular and parallel planes to the horizon.
Subclass:
754
Horizontal (e.g., turntable, etc.):
This subclass is indented under subclass 752. Subject matter
wherein the load support provides movement in a parallel
plane to the horizon.
SEE OR SEARCH CLASS:
108, Horizontally Supported Planar Surfaces.
126, Stoves and Furnaces, subclass 338 for a rotary oven
shelf or rack.
Subclass:
755
Portable:
This subclass is indented under subclass 754. Subject matter
wherein the load support provides an ability to be
transported or moved by hand (carried) in and out of the
cavity.
Subclass:
756
Enclosed cavity structure:
This subclass is indented under subclass 678. Subject matter
wherein the microwave energy is applied to a material or an
object within a closed chamber.
(1) Note. The chamber described above may also be referred
to as a microwave oven.
SEE OR SEARCH CLASS:
333, Wave Transmission Lines and Networks, 227 for a cavity
resonator.
Subclass:
757
With cooling or ventilation:
This subclass is indented under subclass 756. Subject matter
wherein an arrangement is provided for reducing heat or an
opening is provided for escaping or releasing gas or vapor
pressure within the enclosed cavity.
SEE OR SEARCH THIS CLASS, SUBCLASS:
623 for an inductive cooking device with a support having a
cooling device.
632 for an inductive heating device with a cooling
arrangement.
SEE OR SEARCH CLASS:
126, Stoves and Furnaces, 21 for ventilated ovens.
361, Electricity: Electrical Systems and Devices, 381 for
electronic systems and devices having cooling means.
Subclass:
758
With cavity illumination:
This subclass is indented under subclass 756. Subject matter
wherein a source (lamp) provides light to the enclosed
cavity.
SEE OR SEARCH CLASS:
362, Illumination, 92 for illumination with heater or
refrigerator.
Subclass:
759
With heat exchange (e.g., susceptor, etc.):
This subclass is indented under subclass 678. Subject matter
wherein an arrangement provides highly absorbing microwave
energy properties that convert microwave energy into thermal
energy and transfers the thermal energy to a material or an
object.
SEE OR SEARCH THIS CLASS, SUBCLASS:
618 for an inductive heating device with heat exchange.
730 for microwave cookware with a heat exchange to an edible
material.
Subclass:
760
With specific transformer:
This subclass is indented under subclass 678. Subject matter
wherein an electromagnetic induction transfers electric
energy from one or more circuits to one or more other
circuits at a constant frequency with voltage and current
changes in direct proportion to a ratio of turns between a
primary coil winding and a secondary coil winding.
SEE OR SEARCH THIS CLASS, SUBCLASS:
670 for an inductive heating device having a power supply
system with a specific transformer.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems, 355
for a power supply including a transformer or an inductor.
336, Inductor Devices, 182 for a transformer structure.
Subclass:
761
With specific generator:
This subclass is indented under subclass 678. Subject matter
including a device which produces microwave energy in the
heating apparatus.
SEE OR SEARCH CLASS:
315, Electric Lamp and Discharge Devices: Systems, 39.51
for a distributed parameter resonator-type magnetron.
331, Oscillators, 86 for a device with a magnetically
controlled space discharge device.
Subclass:
762
Load support:
This subclass is indented under subclass 678. Subject matter
wherein an apparatus provides an arrangement that a material
or an object is contained in, held in place by, or set to
rest upon.
SEE OR SEARCH THIS CLASS, SUBCLASS:
385 for an electric resistance heating device combined with
a container, enclosure, or support for material to be
heated.
647 for an inductive heating device having a workpiece
support.
752 for a microwave heating device with a field modification
by load support movement.
774 for a capacitive dielectric heating device having
workpiece support.
SEE OR SEARCH CLASS:
248, Supports, for supporting structure, per se.
312, Supports: Cabinet Structure, subclass 236 for support
combined with heating, cooling, or heat exchange means.
Subclass:
763
Shelf:
This subclass is indented under subclass 762. Subject matter
wherein a load support is attached to a cavity wall.
SEE OR SEARCH CLASS:
126, Stoves and Furnaces, 337 for an oven shelf or a rack.
Subclass:
764
CAPACITIVE DIELECTRIC HEATING:
This subclass is indented under the class definition.
Subject matter for electric heating whereby a normally
insulating (nonconducting) material or object interacts
between conducting surfaces having an alternating electric
field thereby causing internal energy losses in the material
or object and a rise in temperature.
(1) Note. Typical dielectric materials are air, wood,
plastic, ceramic, mica, and wax-impregnated paper. The
internal losses are from the molecular friction of the
dielectric material.
(2) Note. A conductive dielectric heater with means to heat
the electrodes to prevent condensation thereon is classified
herein.
(3) Note. A conductive dielectric heating apparatus with
means to prevent dissipation of heat from the work by
simultaneously heating the work holder or support is
classified herein.
(4) Note. For claims reciting both food (edible) and
nonfood (nonedible) heating by an electric heating device or
method, classification is proper for Class 219. If the
claims recited are limited to food (edible) heating methods,
composition, product, or processes, classification is proper
for Class 426.
(5) Note. A capacitive dielectric heater with a diverse
heater included is classified herein. If the diverse heater
is an inductive or microwave type, classification is above.
SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids, 1 for
material subjected to electromagnetic energy.
99, Foods and Beverages: Apparatus, subclass 358 for
cooking with an electrode-type heater; subclass 451 for
treating food by electric, radiant, or vibrational energy;
and digest 14 for induction heating food materials.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
272.2 for methods of and subclasses 379.6+ for means of
surface bonding and/or assembly thereof with direct
application of electrical, magnetic, or radiant energy to
work.
204, Chemistry: Electrical and Wave Energy, 193 for
apparatus for treating substances with electrical or radiant
energy to effect a chemical change.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, 402 for processes of heating a mold utilizing
direct application of electrical or wave energy, digest 46
for molding processes utilizing electrical heat, and
subclasses 405+ for processes utilizing direct application of
electrical or wave energy to the work.
361, Electricity: Electrical Systems and Devices, 271 for
electrostatic capacitors.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, 174 for a device with means for applying
electrical or wave energy directly to work.
426, Food and Edible Material: Processes, Compositions, and
Products, 237 for the direct application of electrical or
wave energy to food material.
600, Surgery, 9 for a magnetic field applied to the body for
therapeutic purposes.
606, Surgery, 27 and 32+ for devices for heat or electrical
applications.
607, Surgery: Light, Thermal, and Electrical Application, 1
for light and thermal application to the body and subclasses
114 through 156 for an electrical energy applicator.
Subclass:
765
Bonding:
This subclass is indented under subclass 764. Subject matter
wherein two or more opposing surfaces are permanently joined
together by dielectric heating.
(1) Note. This subclass relates, for example, to the
bonding of wood, plastic, or paper by thermal-sensitive
glue.
SEE OR SEARCH THIS CLASS, SUBCLASS:
603 for bonding by inductive heating in which the object or
material bonded is metallic.
633 for bonding by inductive heating in which an
intermediate member transfers heat (heat exchange) to the
material or objects (usually nonmetallic) being bonded.
SEE OR SEARCH CLASS:
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
272.2 for laminating processes which include heating or
other effects produced by electrical energy; see subclasses
379.6+ for apparatus therefor.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, 405 for direct application of electrical or wave
energy to work.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, 174 for a device with means for applying
electrical or wave energy directly to work.
Subclass:
766
Shoe:
This subclass is indented under subclass 765. Subject matter
wherein the bonded material or object results in forming or
repairing footwear apparel.
SEE OR SEARCH CLASS:
12, Boot and Shoe Making, appropriate subclasses for
apparatus and processes for making shoes.
36, Boots, Shoes, and Leggings, subclass 2.6 for heated
boots and shoes.
Subclass:
767
Die embroidery:
This subclass is indented under subclass 765. Subject matter
wherein a geometric pattern is formed (imprinted) on the
material or object while being bonded.
SEE OR SEARCH CLASS:
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
subclass 380.8 for an electrode with a shaping or deforming
workpiece function.
Subclass:
768
Sewing machine type:
This subclass is indented under subclass 765. Subject matter
wherein an apparatus is applying mechanically driven rollers
to bond together a seam, or a needle-like point is spot
welding two or more materials together.
Subclass:
769
Container sealing:
This subclass is indented under subclass 765. Subject matter
wherein the bonded surfaces result in a tightly enclosed
vessel having the capacity for holding material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
604 for bonding containers by inductive heating.
633 for bonding nonmetallic objects by inductive heating.
SEE OR SEARCH CLASS:
53, Package Making, digest 2 for high frequency electric
sealing, subclass 557 for heat shrinking, and subclasses
477+ for heat sealing.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
272.2 for processes and subclasses 379.6+ for apparatus
therefor for laminating.
Subclass:
770
Specific heating application:
This subclass is indented under subclass 764. Subject matter
wherein a material or an object of a particular shape or form
is subjected to dielectric heating.
(1) Note. This and other indented subclasses are intended
primarily as subclasses for specific applications of
dielectric heating. Examples of specific applications are a
dielectric heater claimed in combination with an article of
specific configuration, with a specific material, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
635 for an inductive heater for a specific heating
application.
Subclass:
771
Food:
This subclass is indented under subclass 770. Subject matter
wherein the heating application is to warm, defrost, or cook
(edibles) food.
(1) Note. For claims reciting both food (edible) and
nonfood (nonedible) heating by an electric heating device or
method, classification is proper for Class 219. If the
claims recited are limited to food (edible) heating methods,
composition, product, or processes, classification is proper
for Class 426.
SEE OR SEARCH THIS CLASS, SUBCLASS:
620 for inductive cooking.
725 for microwave cooking.
SEE OR SEARCH CLASS:
99, Food and Beverages: Apparatus, subclass 358 for cooking
with an electrode-type heater; subclass 451 for treating food
by electric, radiant, or vibrational energy; and digest 14
for induction heating food materials.
426, Food or Edible Material: Processes, Compositions, and
Products, 237 for the direct application of electrical or
wave energy to food material.
Subclass:
772
Fluent material:
This subclass is indented under subclass 770. Subject matter
wherein the heating application is to a fluid or liquid
substance.
(1) Note. A fluent material is one that flows easily from
container to container and may be a fine granular material,
liquid, or air.
(2) Note. The dielectric heating must act directly on the
fluent material. If the heating is inductive with an
intermediate member such as a conduit or container which in
turn heats the fluent material, see SEARCH THIS CLASS,
SUBCLASS below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
628 for inductively heating a fluent material through an
intermediate member (heat exchange).
687 for a microwave fluid heater.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 451 for
apparatus for sterilizing foods by electrical energy.
204, Chemistry: Electrical and Wave Energy, 155 and 157.15+
for methods involving chemical reactions induced by radiant
energy, and subclasses 193+ for the corresponding apparatus.
250, Radiant Energy, subclass 432 for methods and apparatus
for subjecting fluent material to a radiant energy source.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, 405 for processes utilizing direct application of
electical or wave energy to the work, especially subclasses
413+ for treating or producing a porous product, subclasses
437 for conveying or aligning particulate material,
subclasses 454+ for direct application of fluid pressure,
subclasses 464+ for extrusion molding, subclass 478 for
injection molding.
392, Electric Resistance Heating Devices, appropriate
subclasses for fluid heating by resistance heaters.
422, Chemical Apparatus and Process Disinfecting,
Deodorizing, Preserving, or Sterilizing, subclass 21 and 22+
for processes of the class using microwave or other
electrical or electromagnetic radiation and subclasses 186+
for apparatus for the chemical treatment of material using
radiant electrical energy.
Subclass:
773
Sheet (e.g., board, etc.):
This subclass is indented under subclass 770. Subject matter
wherein the dielectric heating application is to a flat,
rectangular-shaped material or object.
SEE OR SEARCH THIS CLASS, SUBCLASS:
645 for the inductive heating of metal sheet materials.
SEE OR SEARCH CLASS:
226, Advancing Material of Indeterminate Length, appropriate
subclasses for methods of and apparatus for feeding material
without utilizing the leading or trailing ends to effect
movement of the material.
242, Winding, Tensioning, or Guiding, appropriate subclasses
for winding and reeling apparatus.
432, Heating, 59 for a residual device for heating a
longitudinally moving web, strand, or sheet.
Subclass:
774
With workpiece support:
This subclass is indented under subclass 764. Subject matter
wherein a material or an object is contained in, held in
place by, or set to rest upon an arrangement during
dielectric heating.
(1) Note. The meaning of "workpiece" is any object or
material that work (in the form of heat) is applied to.
(2) Note. This subclass includes the subject matter of the
subclass in combination with an enclosure therefor.
(3) Note. An electrode of the heating device may constitute
the support.
SEE OR SEARCH THIS CLASS, SUBCLASS:
385 for an electrical resistance heater combined with a
container, enclosure, or support for material.
647 for workpiece support in which inductive heating is
applied.
SEE OR SEARCH CLASS:
373, Industrial Electric Heating Furnaces, appropriate
subclasses for electric furnaces wherein a crucible forms the
work support.
414, Material or Article Handling, for appropriate subclasses
for workpiece handling.
432, Heating, 227 for a residual heating device associated
with work support.
Subclass:
775
Conveyor:
This subclass is indented under subclass 774. Subject matter
wherein the workpiece support provides for a line of
continuous movement of the workpiece from one location to
another.
SEE OR SEARCH THIS CLASS, SUBCLASS:
388 for an electrical resistance heater with conveyor
means.
645 for apparatus to move a web, strand, or sheet through an
inductive heating zone.
653 for an inductive heating system with a conveyor.
SEE OR SEARCH CLASS:
198, Conveyors: Power-Driven, for appropriate subclasses for
specific conveyor structure.
414, Material or Article Handling, 150 for a chamber of a
type utilized for a heating function and either a driven
device or an inclined flow path for carrying or conveying
material into, within, and out of the chamber.
432, Heating, 239 for a residual heating device having work
feeding, agitating, discharging, or conveying
subcombination.
Subclass:
776
Multiple stations:
This subclass is indented under subclass 775. Subject matter
wherein the workpiece is conveyed to a plurality of heating
zones or work locations.
(1) Note. The plural heating zones may be for
simultaneously heating plural objects or different portions
of one object or for heating one object in diverse manners.
(2) Note. A nonuniform or progressively increasing or
decreasing field in the direction of travel of the work is
considered to come within the meaning of plural heating
zones.
SEE OR SEARCH THIS CLASS, SUBCLASS:
656 for a conveyor with plural inductive heating zones.
701 for a conveyor with plural microwave heating zones.
Subclass:
777
Pressure applicator (e.g., clamp, etc.):
This subclass is indented under subclass 774. Subject matter
wherein the workpiece support applies a force on the
workpiece to keep the workpiece from moving about.
(1) Note. This subclass does not include heating apparatus
wherein the heater and the work are brought into proper
relationship, the heat applied, and the heater and work then
separated. In this subclass, the work must be moved with
respect to the heater during the heating operation.
(2) Note. Means for molding, shaping, or metal working are
excluded from this subclass. For such excluded subject
matter see SEARCH THIS CLASS, SUBCLASS and SEARCH CLASS
below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
149 for electrical metal heating and working.
659 for an inductive heating device with a pressure
applicator.
SEE OR SEARCH CLASS:
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, 405 for processes of molding or shaping plastic
materials within the class definitions which include a
heating step by means of direct application of electrical or
wave energy.
269, Work Holders, for appropriate subclasses for a clamp
structure.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, 174 for a molding machine for shaping or
reshaping nonmetals combined with means for applying radiant
energy (e.g., electrical, electromagnetic, etc.) to the
work.
Subclass:
778
With power supply system:
This subclass is indented under subclass 764. Subject matter
wherein an electrical energizing source is fed to a
dielectric heating apparatus for operation.
(1) Note. The combination of a specific electrode and a
power supply therefor where the power supply is recited by
name only is not classified in this or the indented subclass.
Details of an electrode and power supply must be recited.
SEE OR SEARCH THIS CLASS, SUBCLASS:
482 for an electrical resistance heater with a power supply
and control means.
660 for a power supply system for inductive heating
systems.
702 for a microwave heating device with a control system.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
appropriate subclasses for the miscellaneous power
distribution and supply systems.
323, Electricity: Power Supply or Regulation Systems,
appropriate subclasses for the miscellaneous systems for
controlling phase angle or voltage and/or current magnitude
and for the miscellaneous transformer and impedance systems.
331, Oscillators, appropriate subclasses for electrical
oscillator systems in general.
333, Wave Transmission Lines and Networks, 34 for coupling
networks for coupling electric energy which varies over a
band of frequencies to another transmission line or network.
Subclass:
779
Condition responsive:
This subclass is indented under subclass 778. Subject matter
wherein the power supplied to the dielectric heating
apparatus is automatically regulated according to a
preselected result.
(1) Note. The automatic control means must include means to
sense a condition and means to vary a condition in response
to the sensed condition. Means to maintain a condition
constant is included as an automatic control where the system
includes means to sense deviations from the condition and to
adjust the system to maintain the desired value constant.
(2) Note. The automatic control may be in response to or
control the working temperature, duration of heating cycle,
tuning of the load circuit or power supply, or the coupling
impedance between the power supply and heating apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
663 for inductive heating systems with automatic control.
704 for a microwave heating device with a load condition
sensor.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
appropriate subclasses for the miscellaneous power
distribution and supply systems.
323, Electricity: Power Supply or Regulation Systems,
appropriate subclasses for the miscellaneous systems for
controlling phase angle or voltage and/or current magnitude
and for the miscellaneous transformer and impedance systems.
333, Wave Transmission Lines and Networks, 34 for coupling
networks for coupling electric energy which varies over a
band of frequencies to another transformer line or network.
Subclass:
780
Specific electrode configuration:
This subclass is indented under subclass 764. Subject matter
wherein a conducting surface having a distinctive exterior
contour or unique shape generates an electromagnetic
alternating field for dielectric heating.
SEE OR SEARCH CLASS:
29, Metal Working, 25.41 for methods of making condensers.
361, Electricity: Electrical Systems and Devices, 271 and
503+ for capacitors of general utility.
607, Surgery: Light, Thermal, and Electrical Application,
154 for condenser-type electrodes for use in high frequency
diathermy and for treatment of the human body.
Information Products Division -- Contacts
Questions regarding this report should be directed to:
U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231
tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov
Last Modified: 6 October 2000