U.S. PATENT AND TRADEMARK OFFICE
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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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Classification Index
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(definitions have been obtained from the
Patents ASSIST CD-ROM which
is produced by the U.S. Patent and Trademark Office
Electronic Products Branch)
Class 335
ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND
ELECTROMAGNETS
Class Definition:
This class is restricted to the structure of electric current
switching devices or relays of general application for
closing or opening electrical circuits which devices are
magnetically operated or to magnet structure, per se, either
electromagnets or permanent magnets, adapted for use as a
source of magnetic flux for performing external work.
The devices classified in this class are for the most part of
the electromagnetic type utilizing magnetic cores and
armatures. However, included also are devices of the
electrodynamic type wherein mutually coupled conductors are
caused to move relative to each other by the interaction of
the magnetic fields produced by the flow of electric currents
in the conductors.
Combinations of magnetically actuated circuit makers and
breakers or work magnets and electromagnets with electrical
connector plugs, sockets or other special type housings or
casings are in this class.
Electrical systems or circuits which include the magnetically
controlled switches or relays or work magnet and
electromagnet structures comprising the subject matter of
this class, are excluded from this class. These systems or
circuits are classified in the various electrical or art
classes depending upon the type of electrical system or
apparatus controlled.
This class also includes subcombinations of magnetically
actuated switches and relays classified in this class and
which are either claimed as used in a magnetically actuated
switch or relay or which are by disclosure peculiar to such
use.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
29, Metal Working, subclass 602.1 for methods of
manufacturing transformers and inductances, and residual
methods of manufacturing magnets and electromagnets which do
not fall elsewhere, and see the extensive notes to subclass
602.1 for the lines between Class 29 and other classes.
140, Wireworking, subclasses 71+ for wireworking apparatus,
some of which can be used to manufacture electromagnets.
148, Metal Treatment, subclasses 100-122 for processes of
improving the magnetic properties of material having at least
one component which is a free metal or alloy, other than by
mere magnetization, and subclasses 31.55 and 31.57 for stock
resulting from such processes; subclass 100, notes, for lines
between Class 148 and other classes.
174, Electricity: Conductors and Insulators, for
miscellaneous conductors and insulator structure, some of
which is applicable in the electromagnet.
178, Telegraphy, appropriate subclasses for magnets and
electromagnets utilized in telegraph communication systems.
198, Conveyors: Power-Driven, subclass 381, 439 and 619 for
magnetic type conveyors.
204, Chemistry: Electrical and Wave Energy, subclasses 155+
for processes for producing chemical changes by the use of
magnetic devices and subclass 193 for corresponding
apparatus.
210, Liquid Purification or Separation, subclasses 222+ for
such subject matter having magnetic means to effect the
purification or separation.
219, Electric Heating, subclasses 600+ for inductive
heating, subclasses 678+ for microwave heating, and
subclasses 764+ for capacitive dielectric heating.
221, Article Dispensing, appropriate subclasses and see
especially subclass 212 for magnetic article holding
discharge assistants and the controls therefor.
234, Selective Cutting (e.g., Punching), appropriate
subclasses, and particularly subclasses 59+ for a
pattern-controlled selective cutting machine wherein the
pattern senser may involve electrical circuit-controllers.
242, Winding, Tensioning, or Guiding, subclasses 430+ for
winding of motor cores, inductances, and resistances.
246, Railway Switches and Signals, appropriate subclasses for
electric railway signaling systems utilizing magnets and
electromagnets.
250, Radiant Energy, subclasses 281+ for ionic separation
or analysis methods and apparatus which use magnets or
electromagnets, subclasses 396+ for electron or ion beam
deflection or focusing systems utilizing magnets or
electromagnets.
252, Compositions, subclass 62.51 for processes of making
magnetic compositions and the resulting product when it is
claimed as stock or bulk material, and subclasses 500+ for
electrically conductive compositions and devices defined
solely in terms of the composition of which they are
composed. Included are contacts and switches defined solely
in terms of their composition or stock.
292, Closure Fasteners, subclass 251.5 for magnetic closure
fasteners.
294, Handling: Hand and Hoist-Line Implements, subclass 65.5
and 88 for magnetic lifting and grappling devices.
307, Electrical Transmission or Interconnection Systems,
particularly subclass 38, 55+, 96+, 100, 326+ for switching
systems and subclass 101 for the control or removal of
residual or remnant magnetism.
310, Electrical Generator or Motor Structure, subclasses 10+
for electric motor and generator structure utilizing magnets
or electromagnets.
313, Electric Lamp and Discharge Devices, is the generic
class for the structure of space discharge devices;
subclasses 153+ for space discharge devices and lamps
utilizing magnets or electromagnets; subclasses 146+ for
Class 313 for discharge devices which are provided with a
movable electrode. Some discharge devices are closely
analogous in structure to some types of circuit makers and
breakers. See Class 313, class definition, Lines With Other
Classes and Within This Class, "Distinction Between Discharge
Devices and Electric Switches," for the distinction between
a space discharge device and a circuit maker and breaker.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses for arc lamps having
magnets and electromagnets for controlling the feed of arc
electrodes. Note particularly subclasses 113+.
315, Electric Lamp and Discharge Devices: Systems,
appropriate subclasses for electric lamp and space discharge
device systems having electromagnets and magnets.
318, Electricity: Motive Power Systems, appropriate
subclasses for electric motor control systems utilizing
magnets, electromagnets or relays, particularly subclasses
789+ for induction motor systems operating from a single
phase source with start winding removal under the control of
an electromagnetic switch; and subclasses 821+ for induction
motor systems having the impedance of the secondary circuit
under the control of an electromagnetic switch.
320, Electricity: Battery or Capacitor Charging or
Discharging, appropriate subclasses for battery and condenser
charging and discharging systems utilizing magnets and
electromagnets or relays.
322, Electricity: Single Generator Systems, appropriate
subclasses for generator systems utilizing magnets,
electromagnets or relays.
323, Electricity: Power Supply or Regulation Systems,
appropriate subclasses for voltage control or phase control
systems utilizing magnets, electromagnets or relays.
324, Electricity: Measuring and Testing, subclasses 415+
for contact, relays and switch testing, subclass 200 for
magnetic testing devices utilizing magnets and electromagnets
or inductors, and subclasses 76.11+ for electric meters
utilizing magnets and electromagnets.
332, Modulators, appropriate subclasses for modulators
utilizing magnets and electromagnets.
333, Wave Transmission Lines and Networks, appropriate
subclass for wave transmission lines and networks utilizing
magnets, electromagnets or relays, subclasses 101+ for
plural channel systems including branched circuits with
switching, subclass 13 for resonator type breakdown discharge
system, e.g., T-R or R-T systems, and 245+ subclasses for
long line elements and components which may perform a
switching or blocking function, e.g., long line short
circuiting switches and long line shorting plugs.
334, Tuners, appropriate subclasses for a variable tuner
comprising an inductor and a capacitor, with the inductor
and/or capacitor being variable, subclasses 47+ for tuners
which are varied or adjusted by a switching operation which
usually involves a make and break type switch of the
electromagnetically actuated type.
336, Inductor Devices, appropriate subclasses for the
structure of transformers and inductive reactors of general
utility.
340, Communications: Electrical, appropriate subclasses for
miscellaneous electrical communication systems utilizing
magnets, electromagnets or electromagnetically actuated
switches.
343, Communications: Radio Wave Antennas, for radio wave
energy systems such as radar and directive systems, which
have an antenna, some of which systems utilize magnets,
electromagnets or relays and for antennas which may utilize
electromagnetically actuated switches, note particularly
subclass 768 for slot type antennas with periodic control of
the slot or coupling; subclass 777 for plural wave guide type
antennas with control of the individual antenna; subclass 876
for antennas with switching between the antennas and lines;
and subclass 904 for antennas which may be combined with a
switch.
346, Recorders, appropriate subclasses for recording devices
utilizing magnets, electromagnets or relays.
361, Electricity: Electrical Systems and Devices, subclasses
245+ for polarity reversing systems; subclasses 2+ for
safely systems involving circuit interruption; subclasses
139+ for relay and electromagnetic switching systems; and
subclasses 600+, especially subclass 376 for arrangements of
circuit-closer structures on a mounting or combinations of
circuit-closers with conductors or busbars, including
enclosed or housed switchboards.
362, Illumination, subclass 398 for electric illumination
device having magnetic supporting means.
363, Electric Power Conversion Systems, appropriate
subclasses for conversion systems utilizing electromagnets,
magnets, or relays.
373, Industrial Electric Heating Furnaces, particularly
subclasses 138+ for heating inductors combined with
electric furnace structure.
422, Chemical Apparatus and Process Disinfecting,
Deodorizing, Preserving, or Sterilizing, subclass 186.01 for
apparatus for producing chemical changes in electromagnetic
fields.
427, Coating Processes, subclasses 58+ for coating
processes, per se, wherein the product in useful as an
electrical product.
428, Stock Material or Miscellaneous Articles, subclasses
375+ for coated electrical conductors which may include
contacts and switches, but which are merely recited as a base
with a particular coating thereon.
439, Electrical Connectors, subclass 12 for electrical
connectors having magnetic holding means.
455, Telecommunications, subclasses 352+ for remotely
controlled radio receivers which may use electromagnets; and
subclasses 170.1+ for radio receivers for tuning or wave
selection using electromagnets.
505, Superconductor Technology: Apparatus, Material,
Process, subclasses 150+ for high temperature
(T[subscrpt]c[end subscrpt] > 30 K) superconducting devices,
and particularly subclasses 211+ for electrical energy
storage devices, magnetic coils, wires, cable, etc.
600, Surgery, subclasses 9+ for permanent magnets or
electromagnets utilized in surgery and diagnostics.
SUBCLASSES
Subclass:
1
This subclass is indented under the class definition. Devices
including at least one contact actuating switch means of the
type classifiable in this class in combination with a diverse
type switching means of a type classifiable elsewhere in
another art class. The two or more switching means may be
physically located in the same housing or casing and may have
cooperative features as long as each one is operative
independently of the other. Some examples of diverse type
switches are the mechanical, thermal and thermal current
actuated type.
(1) Note. In order to be classifiable in this subclass the
claimed subject matter must include means whereby at least
one set of main contacts are opened or closed entirely under
the influence of magnetic means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 141+ for single switch devices having a
principal actuating means which is magnetically controlled in
combination with thermal current responsive means.
subclasses 159+ for patents claiming a plurality of
independent switch devices under the class definition.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 5
for devices, other than magnetically actuating, comprising a
plurality of switches, each being separately operated whereby
a plurality of contacts are actuating to control at least two
or more circuits; subclasses 175+ for nonmagnetically
controlled telephone type switches, not restricted to the
telephone art by claimed subject matter, wherein a plurality
of contacts are automatically selected; subclass 50 for a
plurality of nonmagnetically operated switches adapted to be
operated in a predetermined sequence; subclass 51.04 for
plural switches selectively controlling multiple circuits and
combined with or actuated by connector coupling; subclass
81.4 for devices comprising a plurality of fluid pressure
actuated switches.
307, Electrical Transmission or Interconnection Systems,
particularly subclass 29, 38, 113+, and 326+ for switching
systems which may include plural switches.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclasses 2+ for electrothermal or thermally
actuated circuit makers and breakers.
361, Electricity: Electrical Systems and Devices, subclasses
139+ for electric circuits for relays and electromagnets
which may include a plurality of switches.
Subclass:
2
This subclass is indented under the class definition. Devices
including operating or actuating means for opening or closing
the switch contacts and in which at least one of such
operating or actuating means is an electromagnet. For
purposes of classification in this subclass an electrical
circuit is considered to be the equivalent to a single
continuous conductor joining a source to a load through a
device capable of interrupting or completing the continuity
of the conductor.
(1) Note. The subject matter to be found in this and the
indented subclasses includes devices known as
"electromagnetic switches", "circuit breakers", "relays" and
"electromagnetic interrupters".
(2) Note. Devices commonly known as "relays" and which, by
enclosure, contain all the essential structure to make a
switch, but in which the claimed subject matter does not
include actual contact structure are in this class in
subclasses 209+ below.
(3) Note. For electromagnetically actuated switches forming
an element of an electrical control circuit for a particular
art device search should be extended to the art class
relating to the particular art device to be controlled.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 209+ below, for subject matter relating to
electromagnet with armature and for electromagnet or magnet
structure, per se.
SEE OR SEARCH CLASS:
178, Telegraphy, appropriate subclasses for
electromagnetically operated switching devices and keying
devices or other code transmitters especially adapted for the
telegraph art.
200, Electricity: Circuit Makers and Breakers, subclass 12
for pivoted contact dial type switches with electromagnetic
release, subclasses 402+ for double snap switches utilizing
magnetic means to improve the snap action, subclass 83 for
diaphragm type, fluid pressure actuated switches with a
magnet.
218, High-Voltage Switches With Arc Preventing and
Extinguishing Devices, subclasses 22+ for electromagnetic
or permanent magnetic blow out means for extinguishing an
arc.
246, Railway Switches and Signals, appropriate subclasses,
especially subclasses 218+ for electrically actuated
electromagnetic switch and signal devices peculiar to the
railway art.
307, Electrical Transmission or Interconnection Systems,
subclasses 112+ for switching systems in which the
individual switches may be wholly or in part
electromagnetically controlled.
310, Electrical Generator or Motor Structure, subclasses 10+
for dynamo-electric machine structure, particularly
subclasses 31+ for reciprocating devices with self-actuated
interrupter, and subclasses 40+ for rotary machines, which
may include switching devices in the form of commutators.
318, Electricity: Motive Power Systems, appropriate
subclasses for motor control systems which may include
electromagnetic control switch means, see especially
subclasses 445+.
324, Electricity: Measuring and Testing, subclasses 415+
for contact, relay and switch testing.
340, Communications: Electrical, appropriate subclasses for
electromagnetic switches utilized in electrical signaling or
communication systems in general.
361, Electricity: Electrical Systems and Devices, subclasses
1+ for electromagnetic switches used in safety and
protection systems, subclasses 139+ for control circuits for
electromagnetic devices, and subclasses 247+ for igniting
system using magnets or electromagnetic control means.
Subclass:
3
This subclass is indented under subclass 2. Devices including
at least one element of the contact actuating or control
means which consists of ferromagnetic material whose physical
dimensions are subject to change in the presence of a
magnetic field.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 215+ for magnetostrictive device actuator
structure, per se.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, especially
subclass 26 for the structure of magnetostrictive type,
reciprocating, dynamoelectric machines.
318, Electricity: Motive Power Systems, especially subclass
118 for magnetostrictive motor with control system
therefor.
361, Electricity: Electrical Systems and Devices, subclasses
139+ for control circuits for electromagnetic devices.
Subclass:
4
This subclass is indented under subclass 2. Subject matter in
which the device includes structure which peculiarly adapts
or restricts its use to radio-frequency or microwave
frequency conductive circuitry.
(1) Note. The switching devices found in this and indented
subclass 5 below comprise contact means whereby a continuous
physical path is established in one or more conductors of the
circuit to be controlled.
SEE OR SEARCH CLASS:
333, Wave Transmission Lines and Networks, for high frequency
wave transmission line and network switching systems,
particularly subclasses 2+ for automatically controlled
plural channel systems, subclasses 101+ for branched circuit
switching, subclass 13 for resonator breakdown systems (e.g.,
TR or RT systems), subclass 15 for pilot line controlled
systems; subclass 16 for pilot current controlled systems,
subclasses 17.1+ for automatically controlled systems and
subclasses 245+ for wave transmission components that may
include switches.
343, Communications: Radio Wave Antennas, subclass 777 for
plural wave guide antennas with lobe switching and subclasses
876 and 904 for antennas with switch.
455, Telecommunications, subclasses 78+ for so-called T. R.
switches connecting first the transmitter and then the
receiver selectively to an antenna.
Subclass:
5
This subclass is indented under subclass 4. Subject matter
wherein the device includes structure which peculiarly adapts
it for use in the completion or disconnection of circuitry
consisting of coaxial conductors.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
1+, for multiple circuit control devices in which a plurality
of contacts; which are not electromagnetically actuated, are
arranged to switch two or more circuits.
Subclass:
6
This subclass is indented under subclass 2. Subject matter
wherein the device comprises means whereby normally closed
contacts are automatically interrupted upon the occurrence of
an abnormal circuit condition in a circuit with which the
device is designed to be used. The circuit interrupting
device may be, by way of example, of any one of the types
known as "air circuit breakers" or "oil circuit breakers",
which circuit breakers may be of the "single-throw",
"double-throw" or "multiple circuit breaker" type; provided,
that at least one electromagnet is utilized as a means for
operating the contacts to an open position upon the
occurrence of an abnormal condition.
SEE OR SEARCH CLASS:
218, High-Voltage Switches With Arc Preventing and
Extinguishing Devices, subclasses 1+ and 22+, for circuit
interrupting devices with nonmagnetic control means combined
with magnetic blow out.
307, Electrical Transmission or Interconnection Systems,
particularly subclass 39, 86, 97, 116+, and 328 for condition
responsive switching systems.
320, Electricity: Battery or Capacitor Charging or
Discharging, appropriate subclass for a circuit making or
breaking device responsive to a predetermined condition in a
battery charging or discharging circuit or a battery itself.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses for similar devices
electrothermally or thermally controlled.
361, Electricity: Electrical Systems and Devices, subclasses
1+ for devices similar to those to be found in Class 335
utilized in circuit safety or protective systems,
particularly subclasses 91.1+ and 93.1+ which includes
specific circuit breaker or relay structure.
Subclass:
7
This subclass is indented under subclass 6. Subject matter
wherein the automatic circuit interrupting device comprises
means responsive to plural diverse abnormal circuit
conditions such as overload under voltage, etc. Usually the
actuating means comprises separate devices each of which
responds to a given predetermined condition and is operative
either independently or in cooperation with another means.
Some examples; (1) plural electromagnets one of which is
voltage responsive and one of which is current responsive or
(2) overload and underload coils.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 35+ for significant trip structure of a combined
nature such as magnetic and thermal, for instance.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 116 for condition responsive switching systems
which may or may not be responsive to a plurality of
conditions.
361, Electricity: Electrical Systems and Devices, subclasses
1+ and appropriate subclasses, for safety and protection
systems and devices which may be responsive to a plurality of
conditions in the systems.
Subclass:
8
This subclass is indented under subclass 6. Subject matter
wherein the circuit interrupting device comprises a plurality
of individual conductors with contact pairs associated with
each conductor a contact pair actuating means for each
contact pair, each contact pair completing a circuit through
one conductor of a polyphase or plural conductor transmission
line. Devices which are known as bipole or double pole and
which complete the circuit in each conductor of a direct
current circuit will also be found here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
102 for polyphase switches designed to be actuated by
alternating or fluctuating current and having a plurality of
contacts whereby one polyphase input is connected to a
similar polyphase output.
106 for devices of the multiple contact type wherein a
plurality of external circuits may be completed or opened
either selectively or simultaneously by a magnetically
actuated switch means.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclasses 13+ for polyphase systems in general which may
include phase switches and subclasses 112+ for plural phase
switching systems, especially subclass 127 for phase sequence
responsive type.
361, Electricity: Electrical Systems and Devices, subclasses
1+ for similar switching or circuit interrupting devices
combined with safety and protective systems, particularly
subclass 76 for such systems with phase sequence analyzer
means.
Subclass:
9
This subclass is indented under subclass 8. Subject matter
wherein the device comprises individual latching or tripping
means associated with each separate phase or leg contact pair
thereof. The individual latch or trip means may operate
individually on its corresponding contact pair of the
circuit, or, may upon operation, actuate a tripping bar
whereby the remaining contact pairs are opened.
Subclass:
10
This subclass is indented under subclass 8. Subject matter
wherein the interrupting device comprises a single latch or
trip means whereby the plurality of phase or leg contacts
pairs are simultaneously maintained in a first position until
released whereupon the plurality of contact pairs are allowed
to open simultaneously.
Subclass:
11
This subclass is indented under subclass 6. Subject matter
wherein the automatic circuit interrupting means consists of
two or more separate and distinct devices adapted to jointly
or separately interrupt the continuity of a circuit to be
controlled. The devices may be connected in series, tandem
or any other desired arrangement provided there is single
continuous circuit from a source to a load through the switch
means. For example, each switch may be in one leg of a two
conductor circuit.
(1) Note. The devices to found here differ from the
multiple or polyphase devices in subclasses 8+ above, in that
the subject matter relates to devices for interrupting a
single polyphase circuit by a single switch means having at
least one pair of contacts for each phase.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 8+ for multiple or polyphase switches. See (1)
Note above.
subclasses 88+ for plural periodic switches.
152 for plural vacuum or hermetically sealed switches.
subclasses 159+ for plural electromagnetically actuated
switches not specifically recited as automatic circuit
interrupter devices and each being operative independently of
the other.
206 for plural permanent magnet actuated switches.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 5
for multiple circuit control devices constituting a plurality
of switches.
307, Electrical Transmission or Interconnection Systems,
subclasses 113+ for switching systems comprising plural
switches.
361, Electricity: Electrical Systems and Devices, subclasses
1+ for safety and protection systems and devices which may
include a plurality of interrupter devices and subclasses
139+ for electric circuits for relays and electromagnets
particularly subclasses 160+ for plural relays and
electromagnets.
Subclass:
12
This subclass is indented under subclass 6. Subject matter
wherein the interrupting device structure includes auxiliary
contacts or other significant means whereby an electrical
shunt circuit is established to bypass either the main
circuit contacts or the operating coil of the device, prior
to the opening or closing of the main contacts, thereby
preventing arcing and damage to either the main contacts or
the operating coil.
SEE OR SEARCH THIS CLASS, SUBCLASS:
156 for electromagnetically actuated switches combined with
protective means.
201 for magnetic switches with arc prevention means.
subclasses 236+ for electromagnetic relays with a shunt
path for the magnetic flux.
SEE OR SEARCH CLASS:
218, High-Voltage Switches With Arc Preventing and
Extinguishing Devices, subclasses 1+ for nonmagnetically
controlled switches with arc prevention means.
307, Electrical Transmission or Interconnection Systems,
subclasses 134+, for switching systems with arc prevention or
other switch contact operation facilitating means.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclasses 15+ for electrothermally actuated
shunt circuit completion devices.
361, Electricity: Electrical Systems and Devices, subclasses
1+ for protective devices with arc prevention, subclasses
54+ and 58 for electromagnetic device protection circuits
with shunting or impedance insertion means.
Subclass:
13
This subclass is indented under subclass 6. Subject matter
wherein the interrupting device structure includes at least
one auxiliary switch means operative independently of the
main circuit contacts whereby a circuit is completed through
the electromagnetic operating coil of the contact actuating
means or through some other operative element of the device
such as a holding or tripping coil.
SEE OR SEARCH THIS CLASS, SUBCLASS:
12 for similar structure wherein the auxiliary switch
comprises shunting contacts.
157 for electromagnetically actuated switches with holding
magnets which may be actuated by a circuit extending through
holding contacts.
Subclass:
14
This subclass is indented under subclass 6. Devices wherein
the circuit interrupting means is directly connected to the
movable contact or contacts and operable by the effect of a
magnetic field through a movable armature, or other
mechanical means responsive to the magnetic field of a flux
source. That is the devices found in this subclass do not
utilize a motion converting mechanism between the movable
armature or core and the contacts. The devices classified
here are, for the most part, of the class or apparatus
generally shown as "cut outs".
(1) Note. To complete the search the various classes listed
in the search notes under Class 317, subclass 9 should be
consulted.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 68+ for devices in which the contacts are motor
operated.
subclasses 78+ for polarity responsive devices where at
least one of the contacts may be directly carried by the
armature.
subclasses 87+ for periodic switches where at least one
movable contact is carried by a flexible armature.
subclasses 147+ for electrodynamically operated switches
which cause the contacts to open directly.
203 for armature structure significant to switches, in which
the armature may comprise a contact bridging means.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
1+ for safety and protection systems which may in general
include cutouts.
Subclass:
15
This subclass is indented under subclass 6. Subject matter
wherein the interrupting device comprises significant
structure whereby the movable contact or contacts are biased
either open or closed, the pressure between the contacts is
controlled or regulated or by which the contacts are held in
the operative condition and which structure is separate and
distinct from the conventional latching devices customarily
in use.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 157+ for switching devices, not restricted to
the automatic circuit opening function, having significant
locking or holding structure.
188 for snap action contact actuating means.
192 for contact carrying on actuating structure with biasing
means.
193 for contact actuators with vibration, bounce or chatter
prevention means.
subclasses 194+ for contact pressure maintaining or
adjustment means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Maker and Breakers, appropriate
subclasses for similar contact biasing or holding means for
nonmagnetically actuated switches, especially subclass 170
for contact pressure adjustment switches.
307, Electrical Transmission or Interconnection Systems,
subclass 142 for miscellaneous switches having locking,
holding or breaking means for the switch.
361, Electricity: Electrical Systems and Devices, subclasses
170+ for relay systems having relays with contact pressure
increasing means, and subclass 194 for relay systems having
relays with holding means such as a locking contact.
Subclass:
16
This subclass is indented under subclass 15. Subject matter
wherein the significant biasing, holding or pressure control
means consists of either a magnet or other device which
depends for its operation on the reaction between current in
one part of an electric circuit and the current in another
part, such as a current loop for creating electrodynamic
forces tending to separate or close the relatively movable
contacts.
Subclass:
17
This subclass is indented under subclass 6. Subject matter
wherein the circuit interrupting device includes signalling,
indicating or alarm structure whereby the condition of the
switch, whether open or closed, physically inoperative, etc.,
is automatically communicated to an operator or other
interested observer by visual or audible means. In order to
be classifiable in this subclass the signalling or indicating
means must include structure in addition to an operating
lever or other operating means whose position is dependent
upon whether the contacts are open or closed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
156 for electromagnetically operated switches with
significant protective means for the switch itself or its
contacts.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 167
for switches in general with indicators.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses for various types of
electrothermal and thermally actuated switches with
indicators.
340, Communications: Electrical, subclasses 480+ for
electromagnetically operated mechanical traffic or vehicle
signals, subclass 523 for signalling devices responsive to
the sequence of operation of plural circuit breakers,
subclass 644 for a switch or relay condition signalling
device without significant switch or relay structure, and
subclasses 652 and 366+ for visual signals
electromagnetically actuated.
Subclass:
18
This subclass is indented under subclass 6. Subject matter
wherein the structure includes means automatically responsive
specifically to predetermined current values in the circuit
to be controlled or to some abnormal current condition in the
circuit, such as current reversal, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
155 for switching devices, which are not specifically
claimed as automatic circuit interrupting devices, and having
operative means responsive to predetermined current or
voltage value.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
appropriate subclasses, particularly subclasses 125+ for
miscellaneous switching systems responsive to electrical
conditions.
318, Electricity: Motive Power Systems, appropriate
subclasses for motor control switches which may be responsive
to predetermined condition or abnormal current or voltage
value in a motor circuit.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses for electrothermal and
thermally actuated switches, which may be set to operate at a
predetermined current value.
340, Communications: Electrical, subclasses 635+ for
signals and alarms responsive to a predetermined condition of
electrical apparatus.
361, Electricity: Electrical Systems and Devices, subclass
91.1 and 93.1+ for safety and protection systems and devices
responsive to predetermined condition such as voltage or
reverse current.
Subclass:
19
This subclass is indented under subclass 18. Subject matter
wherein the automatically responsive means is designed to be
actuated when the current in the circuit to be controlled
falls to a zero value.
Subclass:
20
This subclass is indented under subclass 6. Subject matter
wherein the structure includes means automatically responsive
specifically to predetermined values, or some abnormal
condition, of the voltage existing in the circuit to be
controlled, such as, for example, over-voltage under-voltage
or no voltage.
SEE OR SEARCH THIS CLASS, SUBCLASS:
155 for electromagnetic switches, not specifically claimed
as automatic circuit interrupters, having means responsive to
a predetermined voltage value.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
appropriate subclasses, particularly subclass 130 for
switching systems which are voltage responsive.
361, Electricity: Electrical Systems and Devices, subclasses
88+ for voltage responsive safety or protection systems,
and subclasses 139+ for relay systems which may be responsive
to predetermined voltage levels.
Subclass:
21
This subclass is indented under subclass 6. Subject matter
wherein the structure includes significant details of
operating means whereby the contacts may be restrained in a
closed condition by a latch or detent which may be tripped by
the action of a magnet or other means. The contacts are
usually held in circuit closing position and tripped to open
position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 167+ for significant latch devices.
subclasses 172+ for tripping devices peculiarly adapted for
use with electromagnetic switches but not restricted to
automatic interrupters.
subclasses 253+ for electromagnet and armature in general
with armature latch.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, for automatically
controlled mechanisms.
200, Electricity: Circuit Makers and Breakers, subclasses
12+ for dial type switches with electromagnetic release,
subclasses 39+ for clock train operated switch with retarded
latch trip, subclasses 411+, 415+, 470, 471, and 424 for snap
switches with latch trip.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclasses 70+ for bimetallically controlled
electrothermal switches with thermally controlled latch or
trip means, 150+ for fusible element controlled switches with
latch or trip means, 174 for fusible cut out devices with
latch or trip means and 356 for thermally controlled switches
with latch or trip means.
Subclass:
22
This subclass is indented under subclass 21. Subject matter
wherein the significant latching or tripping structure
comprises two or more separate means, whereby the contacts
are maintained in a closed position until released or whereby
the latching means is released and the contacts allowed to
open, and each acting independently of the other. Devices in
which the latching means comprises a main latch under the
control of an auxiliary latch and in which the actuation of
the main latch depends upon the condition of the auxiliary
latch will not be found here but in the generic subclass 21
above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
169 for details of plural or combined latch means adapted
for use with electromagnetic switches.
173 for details of plural tripping means adapted for use
with electromagnetic switches.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
39+ for nonmagnetically activated retarded switches with
latch trip means, subclasses 70+ for double snap switches
with latch trip, subclass 470, 471 for single snap with latch
trip, subclass 78 for reciprocating contact snap switches
with latch trip, and subclass 169 for latch structure.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 71 and 175 for electrothermally actuated
switches with combined latching or tripping means.
Subclass:
23
This subclass is indented under subclass 22. Subject matter
wherein the latching or tripping means consists of a
plurality of means, each of which is operable upon a
different principle, as for instance, one may be magnetic and
the other mechanical, or one thermal and the other manual.
Subclass:
24
This subclass is indented under subclass 21. Subject matter
wherein the device comprises, other than in name only,
significant details of structure which is operative, upon the
occurance of abnormal condition in the controlled circuit, to
prevent the main contacts from remaining closed or the latch
from functioning regardless of the operation of a closing
means, or wherein the main contacts are automatically opened
upon the occurrence of an abnormal circuit condition
independently of the position of a manual or other contact
closing means. One example of a device to be found here
consists of a manually closed switch in which a mechanical
latch is operated by a handle to maintain the contacts in
closed condition, the latch being operated or tripped
automatically by some overload condition even though the
closing lever remains in the actuated condition.
(1) Note. Where the claim recites that the device is
"trip-free", without any specific details of such a feature
and then recites specific details of structure which would
cause the patent to be placed in a more restricted subclass
below, the original patent will be placed in the more
restricted subclass and officially cross-referenced back in
this subclass.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
1+ for safety and protection systems may employ circuit
interrupters which are nonreclosable.
Subclass:
25
This subclass is indented under subclass 24. Subject matter
wherein the device includes significant structure whereby the
operative connection between the main contact actuating means
and the means for maintaining the contacts in a closed
condition (latch) is disabled. The disabling means may
include manual, gravity actuated, lost motion or magnetic
devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 157+ for switches with lock open structure for
preventing the contacts from being actuated.
Subclass:
26
This subclass is indented under subclass 21. Subject matter
wherein the structure includes significant means whereby
after an automatic disconnection of the main contacts, upon
the occurrence of a fault or surge in the circuit, the
contacts are automatically reclosed to restore service in the
event that the fault has been removed; or means whereby the
latching mechanism is reset to an operative condition whereby
the contact actuating means will be rigidly held in an
operated condition upon the contacts being reclosed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
166 for electromagnetically actuated switches in general
with latch or trip resetting means.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
71+ for safety and protective systems with means for
subsequent automatic restoration of the system to a normal
operative condition.
Subclass:
27
This subclass is indented under subclass 26. Subject matter
wherein the structure includes significant means whereby the
tripping operation is accomplished automatically and the
reclosing or resetting operation is accomplished by manual
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
164 for manual or gravity actuated latch with
electromagnetic trip.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclass
93.4 for abnormal current condition protection including
automatic circuit reset after interruption of electric
system, and subclass 114 for protective systems including
means for manual and automatic opening of a breaker with
manual reclosing means.
Subclass:
28
This subclass is indented under subclass 26. Subject matter
wherein the reclosing or resetting structure is automatically
operated and is combined with significant means whereby one
or both operations take place after a time interval longer
than the normal operating interval or after a fixed or
predetermined interval which may be shorter than the normal
interval.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 39+ for magnetic latch or trip means with time
delay means.
subclasses 59+ for electromagnetically actuated switches of
the retarded or delayed type.
139 for step-by-step switches with timing or index means.
218 for temperature responsive magnets and electromagnets
with time delay means.
subclasses 239+ for electromagnet with armature time delay
movement control means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
33+ for nonmagnetically actuated switches of the retarded
type.
307, Electrical Transmission or Interconnection Systems,
subclasses 14+ for switching systems with time delay or
retardation means.
318, Electricity: Motive Power Systems, and subclasses 445+
for automatic stopping and/or starting means with time
delay.
361, Electricity: Electrical Systems and Devices, subclass
91.3 for overvoltage protection with time delay means and
subclasses 195+ for relay systems with time delay features.
388, Electricity: Motor Control Systems, art collection 921
for motor control systems including time delay means.
Subclass:
29
This subclass is indented under subclass 28. Subject matter
wherein the significant timing or delay means is fluid
controlled.
SEE OR SEARCH THIS CLASS, SUBCLASS:
61 for electromagnetically operated switches in general with
pneumatic delay means.
62 for electromagnetically operated switches in general with
hydraulic delay means.
240 for electromagnet with an armature movement control by
the dashpot.
SEE OR SEARCH CLASS:
188, Brakes, subclasses 266+, for a fluid-resistance brake or
shock absorber of general utility.
200, Electricity: Circuit Makers and Breakers, subclass 34
for nonmagnetically actuated switches with dashpot retarding
means and subclasses 81+ for fluid pressure actuated
switches.
361, Electricity: Electrical Systems and Devices, subclass
116 for systems utilizing pneumatically operated breakers.
Subclass:
30
This subclass is indented under subclass 28. Subject matter
wherein the delay structure includes means whereby the time
interval between the opening of the contacts and the
reclosing thereof, the resetting of the latch, or the
permanent opening (lockout) of the main contacts is
controlled by a mechanical motor means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 64+ for electromagnetically actuated switches of
the retarded or delayed type utilizing a motor or motor
controlled means.
139 for step-by-step switch clock mechanism timing means.
subclasses 239+ for electromagnets with time delay armature
movement control means.
SEE OR SEARCH CLASS:
178, Telegraphy, subclass 76 for retarded circuit closers
peculiar to telegraph circuits.
200, Electricity: Circuit Makers and Breakers, subclasses
35+ for nonelectromagnetically operated switches of the
retarded type and utilizing clocks, clock trains or similar
gearing as a retarding means.
307, Electrical Transmission or Interconnection Systems,
subclasses 141+ for a switching system including a time
delay or retardation means for controlling a switch actuation
and which may include motor means.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 51, 81, 88, 127, 163, and 301 for
electrothermal or thermally controlled switches with timing
means which may be time controlled.
361, Electricity: Electrical Systems and Devices, subclasses
71+ for systems including circuit breakers with time delay
means including clock work.
Subclass:
31
This subclass is indented under subclass 28. Subject matter
wherein the timing or delay structure includes means whereby
the time interval between the opening of the contacts and the
reclosing thereof, resetting of the latch or permanent
opening (lockout) of the main contacts is controlled either
wholly or in part by thermal means, such as a bimetallic
element, for example.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 39+ for circuit interrupters with magnetic latch
or trip means which may include thermal time delay means.
66 below for switches of the retarded or delayed type
including thermally responsive delay means.
subclasses 217+ for electromagnet and armature with
temperature responsive type delay means.
SEE OR SEARCH CLASS:
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 301 for time controlled thermally
responsive switches.
361, Electricity: Electrical Systems and Devices, subclass
99 for safety protective systems utilizing combined
thermal-electromagnetic devices.
Subclass:
32
This subclass is indented under subclass 28. Subject matter
wherein the timing or delay structure includes counting or
integrating means whereby the time interval between the
initial opening and the final reclosing operation or final
opening (lockout) of the main contacts comprises a cycle of
opening and reclosing operations or whereby the circuit
completing contacts are normally latched in closed condition
and released by a counting mechanism adapted to respond to
successive fault current impulses until a predetermined
number of such pulses after which the latch is released
allowing the contacts to open.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
71+ for safety protective systems utilizing subsequent
automatic restoring means.
Subclass:
33
This subclass is indented under subclass 32. Subject matter
wherein the timing or delay means includes significant
structure whereby at least two of the cycles between the
initial opening of the main contacts and the final opening
or, lockout thereof, are of different duration. For example,
the initial opening may be instantaneous while the succeeding
cycles may be of longer duration or the initial opening may
be delayed while the succeeding cycles may be of short
duration.
Subclass:
34
This subclass is indented under subclass 32. Subject matter
wherein the timing or delay means comprises significant
structure whereby the main contacts are positively restrained
from being reclosed after a given sequence of opening and
reclosing operations.
SEE OR SEARCH THIS CLASS, SUBCLASS:
77 for motor operated switches with significant locking
means.
113 for automatically actuated plural contact switches with
locking or latching means.
subclasses 157+ for other electromagnetically actuated
switches with lockout (open) means.
Subclass:
35
This subclass is indented under subclass 21. Subject matter
wherein the trip structure contains significant details of
more than a single tripping device each one of which is
responsive to a different condition or in which each is
actuated by means operating upon a different principle. Also
devices in which the current in the winding of a magnetic
trip device is controlled by a bimetal, or other thermal
means, which may be heated in response to current flow are
also classified here.
(1) Note. Generally the combination of a magnetic trip with
a bimetallic means results in an instantaneous tripping
action upon a large surge of current and a time delayed
tripping action following a sustained overload.
SEE OR SEARCH THIS CLASS, SUBCLASS:
173 for other electromagnetically actuated switches with
plural significant diverse tripping means.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
1+ for miscellaneous circuit breaker systems, and subclass
114 for safety and protective systems utilizing manual and
automatic opening of a breaker.
Subclass:
36
This subclass is indented under subclass 35. Subject matter
wherein the combined trip structure includes at least one
element of structure common to or forming an integral part of
each one of the plural separate tripping means.
Subclass:
37
This subclass is indented under subclass 35. Subject matter
wherein the trip structure includes at least one thermal
element, which element acts as a winding or flux source for a
magnetic device. Usually, in the patents classified here,
the thermal element acts as a delayed tripping device while
the magnetic device operates instantly upon excessive current
in the thermal device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 141+ for other electromagnetically operated
switches with additional thermal current responsive means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 3
for multiple circuit control switches with thermal current
responsive means.
361, Electricity: Electrical Systems and Devices, subclass
99 for safety and protective systems including devices with
combined thermal electromagnetic relay means, one of which
may act instantaneously.
Subclass:
38
This subclass is indented under subclass 21. Subject matter
wherein the trip structure consists wholly or exclusively of
magnetically operated means. The trip means may consist of
plural magnets acting conjointly, single magnet means with a
plurality of armatures or any other magnetic structure so
long as the operating means consists of magnetic means only.
(1) Note. For magnetic trip structure in general which
performs the additional function of arc suppression or
blow-out, the search should be extended to subclass 201
below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
174 for electromagnetically actuated switches in general
with significant magnetically actuated tripping means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
12+ for dial type multiple circuit controllers with
electromagnetic release, subclass 404 for double snap
switches with magnetic latch trip, subclass 404 for single
switches with magnetic latch trip.
219, Electric Heating, subclass 519 for automatically
operated current connection or disconnection means for
heating devices comprising electromagnetic relay means.
361, Electricity: Electrical Systems and Devices, subclasses
1+ and appropriate subclasses for safety and protective
systems employing electromagnetic protective devices.
Subclass:
39
This subclass is indented under subclass 38. Subject matter
wherein the trip structure includes significant means whereby
the tripping operation is delayed for a predetermined
interval of time after the occurrence of the circuit
condition tending to cause such a tripping action. The
significant time delay means may consist of a thermal or
other restraining means, provided that, it acts directly upon
the magnetically operated tripping means to thereby prevent
the said magnetic means from performing a tripping operation
during the period of restraint.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 35+ for plural trips or combined operating means
for a single trip.
Subclass:
40
This subclass is indented under subclass 39. Subject matter
wherein the significant time delay structure includes means
responsive to the degree of overload occurring in the
controlled circuit. For instance, the device may contain a
first magnetic winding or armature actuated instantaneously
upon a short circuit occurring and another winding or
armature responsive to a continuous overload.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
94+ for safety and protective systems employing a device
having time delay actuating means combined with instantaneous
control (e.g., responsive to the extent of the fault).
Subclass:
41
This subclass is indented under subclass 38. Subject matter
wherein the magnetic flux producing winging of the magnetic
trip structure either comprises a section of a conductor,
which is directly in the controlled circuit or is connected
in series with the main contacts.
Subclass:
42
This subclass is indented under subclass 38. Subject matter
wherein the magnetic tripping means includes significant
structure whereby the trip operating characteristics thereof
may be adjusted or calibrated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
45 for electromagnetic switch with adjustment or calibrating
means for thermally actuated latch or trip means.
176 for other electromagnetically actuated switches with
adjustable magnetic tripping means.
Subclass:
43
This subclass is indented under subclass 21. Subject matter
wherein the trip structure consists wholly or exclusively of
thermally actuated means. The thermal member or members in
the device may be inductively heated or directly heated by
current in the controlled circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 35+ for trip actuating means comprising thermal
means plus some additional means such as magnetic, mechanical
or manual, operating means.
subclasses 141+ for other electromagnetically actuated
switches combined with thermal current responsive means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 3
for multiple circuit control switches with thermal current
combined actuating means.
219, Electric Heating, subclasses 494+ for automatically
regulated or controlled power supply systems for electric
heaters with thermally responsive control means and
subclasses 510+ for thermally responsive automatic current
connection or disconnection means for heating devices.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses for thermal current actuated
switches with latch trip means.
361, Electricity: Electrical Systems and Devices, subclasses
1+ for safety and protective systems with thermal control
means and subclasses 161+ for electric circuits for relays
and electromagnets utilizing thermally actuated means.
Subclass:
44
This subclass is indented under subclass 43. Subject matter
wherein the significant tripping structure includes means
whereby the thermal actuating means is compensated for
changes in ambient temperature to prevent unwanted change in
the operating characteristics thereof.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclass
140 for electric circuits for relays and electromagnets
including means for compensating for thermal changes.
Subclass:
45
This subclass is indented under subclass 43. Subject matter
wherein the trip structure includes means whereby the current
value necessary to cause a response of the control device, of
the trip means, or the electromagnetic force necessary to
permit the actuation of the contacts to open or closed
condition, may be regulated, readily adjusted or calibrated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
42 for electromagnetic circuit interrupters with adjustment
or calibration of magnetic latch or trip actuating means.
176 for electromagnetic switches in general with adjustable
magnetically operated trip means.
Subclass:
46
This subclass is indented under subclass 6. Subject matter
wherein the interrupting device includes significant
structure whereby (1) rebound of the contacts upon opening or
closing (2) any undesirable actuation of the contacts from
one condition to another, either in response to abnormal
circuit conditions or by jar or shock, is prevented, or (3)
whereby the operating mechanism may be positively locked
against undesirable circuit opening and/or closing movement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 157+ for other electromagnetically actuated
switches with locking or holding means.
193 for significant contact actuating structure with
vibration, bounce or chatter prevention means.
271 for electromagnet with armature mounting means with
bounce or vibration preventing means.
277 for electromagnet with armature with shock absorption,
vibration or bounce preventing means in general.
Subclass:
47
This subclass is indented under subclass 2. Subject matter
wherein the structure includes means whereby at least one
electrical circuit is completed through a conductive liquid,
usually mercury.
(1) Note. For purposes of classification a conductive fluid
comprising a fluid dielectric with copper or other electrical
conductive particles in suspension therein is considered as a
conductive liquid classifiable in this or the indented
subclasses.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 32
for periodic switches of the liquid contact type; subclass
81.6 for fluid pressure operated switches of the liquid
contact type; and subclass 152 for nonelectromagnetically
controlled switches in general utilizing liquid contacts.
(1) Note. Class 200, subclass 152 is the generic place for
liquid contact (mercury) switches. To complete the search
for this subject matter the search notes under that subclass
definition should be consulted.
324, Electricity: Measuring and Testing, subclasses 92+
for devices for measuring, testing or sensing electricity,
per se, and utilizing fluid conductors.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 21, 114+, 306+, particularly subclasses
331 and 373 for electrothermal or thermally controlled
switches utilizing liquid contacts.
361, Electricity: Electrical Systems and Devices, subclasses
500+ for electrolytic current interrupting systems and
devices.
Subclass:
48
This subclass is indented under subclass 47. Subject matter
wherein the structure includes a plurality of three or more
electrodes through which a current may enter or leave the
liquid or other contact means whereby at least two or more
external electrical circuits may be completed through the
device.
(1) Note. Devices which, in fact constitute a plurality of
separate mercury switches supported in a single group and
which, may or may not depend upon a single magnet for
actuation, are considered to come within the above subclass
definition as special mercury switches. Devices of this type
will have the original placed here and an official
cross-reference placed in subclasses 159+ below.
(2) Note. Normally patents having the original classified
here or in any other of the special type groups below will
not be crossed down into the general multiple contact
subclasses 106+ below, unless the disclosed subject matter
discloses contact structure which may be of general utility
in switches other than the special type with which it is
disclosed or claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 8+ for automatic circuit interrupters of the
polyphase or multiple type.
11 for automatic circuit interrupters of the plural switch
type.
60 for retarded or delayed type electromagnetically actuated
switches which complete plural circuits alternately,
consecutively or selectively.
72 for switches with plural contacts.
subclasses 88+ for periodically operative switches with
means for completing plural circuits.
subclasses 106+ for multiple type switching devices not
restricted to the specific types listed above.
152 for plural vacuum or sealed switches.
subclasses 159+ for plural switches.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
1+, for multiple circuit switches in general, subclasses
19.06+ for periodic switches of the multiple contact type,
and subclass 32 for periodic switches with liquid contact.
Subclass:
49
This subclass is indented under subclass 47. Subject matter
wherein the structure includes means whereby an electrical
circuit, or circuits, is completed when the conductive liquid
is displaced from a first position in which the continuity of
a conductive path between two or more electrodes is
interrupted to a second position in which the path is
completed through the liquid, the condition of the controlled
circuit at all times being dependent upon the position of the
liquid. The displacement means is generally of the
magnetically controlled plunger type but may consist of means
for tilting the chamber holding the liquid.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 32
for periodic switches with liquid contacts, subclass 80 for
centrifugal switches which may use a displaceable liquid
conductor for performing circuit controlling operations, and
subclass 152 for nonelectromagnetically operated mercury
switches in general.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 21 for electrothermal switches utilizing
physical changes in a conductive fluid.
Subclass:
50
This subclass is indented under subclass 49. Subject matter
wherein the structure includes at least two separate wells or
containers each of which is adapted to hold at least a
portion of the conductive fluid and in which the condition of
the external circuit depends upon the presence of, or the
amount of, liquid in one or the other or both containers.
SEE OR SEARCH CLASS:
338, Electrical Resistors, subclasses 80+ for liquid
resistor devices, especially subclass 81 wherein an electrode
is separable from the liquid for switching and subclass 94
for devices for varying a resistance by means of a device
having contacts adapted to be closed by a liquid.
Subclass:
51
This subclass is indented under subclass 49. Subject matter
wherein the liquid displacement structure includes magnetic
flux generating means acting either directly upon the liquid
or upon other means such as a piston or plunger which in turn
acts to displace the liquid.
Subclass:
52
This subclass is indented under subclass 51. Subject matter
wherein the magnetically actuated liquid displacement means
comprises a plunger or piston acting upon the liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
56 for conductive liquid activities utilizing an armature
structure comprising a freely floating slug or mass.
Subclass:
53
This subclass is indented under subclass 52. Subject matter
wherein the structure includes a means in addition to the
plunger whereby the circuit to be controlled may be
maintained open or closed for predetermined interval of
time.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 28+ for automatic circuit interrupters with
latch or trip with timing means for reclosing or resetting.
subclasses 39+ for automatic circuit interrupters with
magnetic latch or trip control of the time delay type.
subclasses 59+ for other electromagnetically actuated
switches with time delay means.
139 for step-by-step switches with timing or indexing
means.
218 for magnets or electromagnets of the temperature
responsive type with time delay means.
subclasses 239+ for electromagnet with time delay armature
movement control means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
33+ for nonmagnetically actuated switches with time delay.
Subclass:
54
This subclass is indented under subclass 49. Subject matter
wherein the liquid displacement means includes structure
whereby liquid displacement is accomplished by tilting or
rotating a chamber containing the liquid.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 17
for operating devices for plural circuit control switches
which may utilize tiltable mercury tube means, subclass 32
for periodic switches (flashers) utilizing tiltable liquid
conductor tube means, subclass 84 for float type switches
having tiltable switches which may be of the liquid contact
type, actuated by the motion of the float and subclass 152
for liquid contact switches which may be tiltable.
318, Electricity: Motive Power Systems, subclasses 119+
for oscillating motors which may be controlled by a tiltable
mercury switch.
340, Communications: Electrical, subclass 331 for flashers
which may utilize tiltable mercury switches.
361, Electricity: Electrical Systems and Devices, subclasses
160+ for thermal switches which may utilize tiltable
mercury devices and forming an element of electrical circuits
for relays or electromagnets.
455, Telecommunications, subclasses 230+ for selective
control mechanism for radio receivers which may utilize
tiltable mercury switch means.
Subclass:
55
This subclass is indented under subclass 47. Subject matter
wherein the device includes significant armature structure,
not comprised of the liquid itself, and whereby at least one
movable contact is caused to complete an electrical circuit
through the medium of a conductive liquid. The liquid may
comprise the fixed contacts or electrodes or may be retained
in a reservoir from which the fixed contacts are wetted by
capillary or other action.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 150 for
space discharge devices with at least one movable contact
cooperating with a liquid electrode and subclasses 163+ for
liquid electrode discharge devices.
Subclass:
56
This subclass is indented under subclass 55. Subject matter
wherein the armature structure comprises a globule, a
metallic slug or other mass of material movable in a fluid
and responsive to a magnetic field and freely movable within
the magnetic field in such a manner as to complete or open an
electric circuit between contacts and entirely free of any
mechanical securing means. The fluid may be air,
nonconductive liquid or the conductive liquid itself.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 49+ for liquid displacement type conductive
liquid switches, especially subclasses 52+ wherein
magnetically moved piston or plungers are utilized.
82 for polarity responsive electromagnetic switches with
floating armature (i.e., no fixed pivot).
280 for armature structure comprising balls, filings or
granular material.
Subclass:
57
This subclass is indented under subclass 47. Subject matter
wherein the device includes significant contact or electrode
structural details.
SEE OR SEARCH THIS CLASS, SUBCLASS:
83 for polarized switches with significant contact
structure.
97 for periodic switches with significant contact
structure.
subclasses 133+ for multiple contact type switches with
significant contact structure.
154 for vacuum (reed) switches with significant contact or
contact actuating means.
subclasses 196+ for significant contact structure not
peculiar to any of the specialized types above.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 166
for switch contact details.
Subclass:
58
This subclass is indented under subclass 57. Subject matter
wherein the significant contact or electrode structure
includes a mercury pool or a metallic member wetted with
liquid mercury.
Subclass:
59
This subclass is indented under subclass 2. Subject matter
wherein the device includes significant structure whereby the
timing of the opening or closing of the switch contacts of
the device takes place at an appreciable interval or
intervals of time after an actuating force is applied to the
contact actuating means or the timing is effected by varying
the energizing current applied to the magnetic winding of the
device.
(1) Note. For devices which automatically interrupt an
electrical circuit upon the occurrence of an abnormal
condition arising in the circuit to be controlled and having
timing or delay means, see subclasses 6+ above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 28+ for automatic circuit interrupters with
latch or trip means with timing means for reclosing or
resetting.
subclasses 39+ for automatic circuit interrupters with
magnetic latch or trip control of the time delay type.
139 for step-by-step switches with timing or indexing
means.
218 for magnets or electromagnets of the temperature
responsive type with time delay means.
subclasses 239+ for electromagnet with time delay armature
movement control means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
33+ for nonmagnetically actuated switches with time delay
means.
219, Electric Heating, subclasses 492+ for automatic
regulating or control systems for heating devices utilizing
timing or cycling means.
307, Electrical Transmission or Interconnection Systems,
subclasses 141+ for switch actuation means with time delay
or retardation means.
315, Electric Lamp and Discharge Devices: Systems, subclass
360 for time controlled electric lamp and discharge device
systems.
318, Electricity: Motive Power Systems, subclass 141, 283+,
484+, 700+, and 727+ for various motor control switching
systems with time delay means.
320, Electricity: Battery or Capacitor Charging or
Discharging, subclasses 155+ for a battery charging circuit
with time control.
322, Electricity: Single Generator Systems, subclass 18 for
automatic control of generator or driving means having time
delay in response.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclasses 301+ for thermally actuated switches
with time control means.
340, Communications: Electrical, subclass 815.30 for visual
signalling devices with means for self cancelling after a
fixed time interval.
361, Electricity: Electrical Systems and Devices, subclasses
1+ for safety and protective systems with time delay means,
and subclasses 160+ for electric circuits for relays and
electromagnets with time delay.
388, Electricity: Motor Control Systems, art collection 921
for motor control systems including time delay means.
Subclass:
60
This subclass is indented under subclass 59. Subject matter
wherein the device comprises means whereby a plurality of two
or more electric circuits are adapted to be energized
alternately, consecutively or selectively.
(1) Note. For multiple contact switches in general, such as
automatic telephone switches, but not involving time delay,
search subclasses 107+ below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 8+ for automatic circuit interrupters of the
multipole or polyphase type.
11 for automatic circuit interrupters of the plural switch
type.
48 for conductive liquid switches with three or more
contacts.
72 for motor actuated switches with three or more contacts.
subclasses 88+ for periodic or vibratory switches with
plural pairs of contacts.
subclasses 107+ for multiple contact switches in general of
the selectively sequentially, alternatively or intermittently
actuated type. See (1) Note above.
152 for vacuum or hermetically sealed type plural switches.
subclasses 159+ for plural independently operative switches
in general.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 37
for multiple contact rotary retarded switches.
Subclass:
61
This subclass is indented under subclass 59. Subject matter
wherein the delay structure comprises pneumatic means such as
a dashpot, bellows, suction cup, etc., utilizing air or other
gaseous fluids.
SEE OR SEARCH THIS CLASS, SUBCLASS:
29 for automatic circuit interrupters with latch or trip
reclosing or resetting means utilizing fluid delay means.
62 for retarded or delayed switches utilizing hydraulic
delay means.
240 for electromagnet with associated dashpot delayed
armature.
SEE OR SEARCH CLASS:
188, Brakes, subclasses 266+, for a fluid-resistance brake or
dashpot of general utility.
200, Electricity: Circuit Makers and Breakers, subclass 34
for nonmagnetically actuated switches with dashpot retarding
means.
318, Electricity: Motive Power Systems, and subclass 485
for automatic motor control means with dashpot control.
388, Electricity: Motor Control Systems, art collection 921
for motor control systems including time delay means.
Subclass:
62
This subclass is indented under subclass 59. Subject matter
wherein the delay structure comprises means, operable under
the influence of a liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
29 for automatic circuit interrupters with latch or trip
reclosing or resetting means utilizing fluid delay means.
61 for retarded switches utilizing pneumatic delay means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
81+ for fluid pressure operated switches.
307, Electrical Transmission or Interconnection Systems,
subclass 118 for switching systems with fluid condition
responsive means and subclass 144 for fluid pressure switch
actuating means.
318, Electricity: Motive Power Systems, and subclass 485
for other automatic motor control means with dashpot or other
mechanical delay means.
388, Electricity: Motor Control Systems, art collection 921
for motor control systems including time delay means.
Subclass:
63
This subclass is indented under subclass 59. Subject matter
wherein the delay structure comprises magnetic means, per se,
or mechanical elements which are magnetically controlled.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 38+ above, for automatic circuit interrupter
devices with magnetic trip means with time delay.
SEE OR SEARCH CLASS:
318, Electricity: Motive Power Systems, and subclass 487
for automatic motor control switches with electromagnetic
time delay means.
388, Electricity: Motor Control Systems, art collection 921
for motor control systems including time delay means.
Subclass:
64
This subclass is indented under subclass 59. Subject matter
wherein the delay structure comprises mechanical or inertia
means or a mechanical movement.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
33+ for mechanically retarded switches in general.
361, Electricity: Electrical Systems and Devices, subclasses
1+ for electromagnetic safety and protection systems with
mechanical time delay means and subclasses 160+ for electric
circuits for relays and electromagnets with mechanical time
delay means.
Subclass:
65
This subclass is indented under subclass 64. Subject matter
wherein the mechanical delay means comprises separate and
independent motor means. The motor may be either electric or
spring driven.
(1) Note. Delay devices which are operated by an induction
vane driven by the contact actuating magnet, or other magnet
means forming a component of the switch, are classified in
subclass 63 above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
30 for automatic circuit interrupters with trip reclosing or
resetting means utilizing mechanical motor delay control.
subclasses 68+ below, for switches wherein the actuation of
the main contacts is under the control of an electric motor.
SEE OR SEARCH CLASS:
185, Motors: Spring, Weight, or Animal Powered, appropriate
subclasses for mechanical motors, per se, of the weight or
spring actuated type.
200, Electricity: Circuit Makers and Breakers, subclasses
35+ for switches of the retarded type with motor driven
clock train means.
318, Electricity: Motive Power Systems, and subclass 486
for automatic stopping or starting switches with pilot or
servo-motor time delay means.
388, Electricity: Motor Control Systems, art collection 921
for motor control systems including time delay means.
Subclass:
66
This subclass is indented under subclass 59. Subject matter
wherein the delay structure comprises means whereby the
desired time interval transpiring between the application of
a control signal and the contact actuation is determined by
the heating of a thermal element, such as a bimetallic
element for example, by an electric current.
(1) Note. The subject matter to be found here is directed
to the delay means for electromagnetically actuated switches.
Where the switch actuator is thermal, classification of the
thermal current actuated switches is in Class 200, subclasses
113+ and of the thermal actuated switches, is in Class 337,
appropriate subclasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
31 for automatic circuit interrupters with latch or trip
reclosing or resetting means utilizing thermal delay means.
subclasses 35+ above, for combined trip structure, for
circuit interrupting devices, with one means being thermal.
subclasses 39+ for magnetic trip structure with thermal
delay means.
subclasses 43+ for thermal trip structure.
subclasses 141+ for electromagnetic switch control means
combined with thermal means.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 117 for condition responsive switching systems
responsive to light, heat, vibratory or radiant energy.
322, Electricity: Single Generator Systems, subclass 33 for
automatic control means for a generator or driving means
which is responsive to thermal conditions.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses. See (1) Note above.
361, Electricity: Electrical Systems and Devices, subclasses
23+ for thermal protective devices, subclass 99 for safety
and protection devices with combined thermal and
electromagnetic relay delay means, and subclasses 160+ for
thermal control means in electric circuits for relays and
electromagnets.
374, Thermal Measuring and Testing, subclasses 187+ for
expanding solid type and subclasses 201+ for expanding fluid
thermometric devices in general.
Subclass:
67
This subclass is indented under subclass 59. Subject matter
wherein the delay structure includes adjusting or regulating
means whereby the time delay interval transpiring before the
opening and or closing operation may be varied or
controlled.
SEE OR SEARCH THIS CLASS, SUBCLASS:
45 for automatic circuit interrupters with latch or trip
means utilizing adjustable thermal actuators.
Subclass:
68
This subclass is indented under subclass 2. Subject matter
wherein the electromagnetic switch operating mechanism
comprises or includes an electric motor or the combination of
electromagnetic means with at least one rotating motor means,
in addition to the electromagnetic means, whereby the main
contacts are caused to be operated to either the open or
closed position. The additional motor means may consist of a
spring motor operatively connected with an electromagnet.
(1) Note. The electric motor structure to be found in this
and the indented subclasses may be either of the direct
current or alternating current variety. No effort has been
made to distinguish between A.C. and D.C. in this subclass,
the motor being merely the significant means for driving a
particular class of switch. For alternating current switches
of general utility without motor means the search will be in
subclasses 99+ below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
30 for automatic circuit breakers with mechanical motor
controlled trip or latch.
65 for switches with motor controlled delay means.
118 for automatically actuated multiple contact switches of
the telephone type which are motor driven.
SEE OR SEARCH CLASS:
185, Motors: Spring, Weight, or Animal Powered, for
mechanical motors, per se, of the weight or spring actuated
type.
200, Electricity: Circuit Makers and Breakers, subclasses
17+ for nonmagnetically operated multiple circuit control
devices with motor operating means, subclasses 19.03+, 19.07+
and 19.18+ for rotary periodic switches, subclass 48 for
significant structure comprising motor and related mechanisms
rotatable to operate high potential electric switches,
subclass 80 for centrifugal switches which may be motor
driven and subclass 155 for rotating mechanical switches.
246, Railway Switches and Signals, subclass 99 for automatic
railway block signalling systems which are clock work
controlled, subclasses 221+ for electric motor systems for
signal switch actuation, e.g., see also subclasses 102, 103
and 263 for mechanical motor systems.
310, Electrical Generator or Motor Structure, appropriate for
specific electric motor structures.
315, Electric Lamp and Discharge Devices: Systems,
appropriate subclasses for specific electric motor control
systems.
Subclass:
69
This subclass is indented under subclass 68. Subject matter
wherein the motor structure is reversible in direction or
oscillates cyclically about a center position first in one
direction and then the other.
SEE OR SEARCH CLASS:
318, Electricity: Motive Power Systems, appropriate
subclasses for motor reversing systems. For example, see
subclass 10 for particular motor driven load devices with
reversible drive mechanism, subclasses 119+ for reciprocating
or oscillating motor control systems and subclasses 280+ for
motive power systems with motor reversing means.
Subclass:
70
This subclass is indented under subclass 68. Subject matter
wherein the motor structure is either responsive to a
predetermined frequency of the signalling or actuating
current or operates at a speed corresponding to the frequency
of the actuating current.
SEE OR SEARCH THIS CLASS, SUBCLASS:
94 for periodic switches with vibratory reeds tuned or
resonant at a particular frequency.
101 below, for alternating current responsive switches which
are synchronous frequency responsive.
SEE OR SEARCH CLASS:
318, Electricity: Motive Power Systems, appropriate
subclasses, for electric motors having means for varying or
adjusting frequency of the current applied thereto usually
for speed control. See subclass 503 and the search notes
thereunder for the general field of search for motors with
armature current frequency or pulsation control.
334, Tuners, subclasses 20+ for motor operated tuners,
particularly subclass 21 for predetermined frequency selector
tuners.
361, Electricity: Electrical Systems and Devices, subclass
113 for safety and protective systems which are frequency
responsive and subclasses 182+ for relay systems which are
frequency responsive.
Subclass:
71
This subclass is indented under subclass 68. Subject matter
wherein the device includes significant structure operated by
the motor whereby the main contacts are actuated to or from
an opened or closed condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
114 for plural contact telephone type switches with
automatic rotary contact selecting means.
118 for motor driven automatic selector means.
subclasses 121+ for significant means for actuating a
plurality of contacts selectively, cyclically, alternately or
intermittently.
subclasses 185+ for other significant contact actuating
structure.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses for rotary type contact actuating mechanisms,
particularly subclasses 178+ for automatic telephone type
switches with rotary contact selecting or actuating means.
Subclass:
72
This subclass is indented under subclass 71. Subject matter
wherein the significant contact actuating structure comprises
means whereby a plurality of external electrical circuits may
be selectively completed by the device or in which a
plurality of fixed contacts are selectively connected to one
or more movable contacts by motor driven means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
118 for multiple contact telephone type selector switch
devices which are motor driven.
subclasses 121+ for plural contact type electromagnetically
operated switches with other significant contact actuating
means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 4
and 6+ for multiple circuit pivoted contact switches;
subclasses 19.07+ for nonmagnetically actuated periodic
switches with plural contacts; subclass 37 for clock train
actuated rotary switches of the multiple contact type and
subclasses 178+ for telephone type selector switches having a
plurality of contacts adapted to be actuated by a motor
driven selector means.
Subclass:
73
This subclass is indented under subclass 71. Subject matter
wherein the contact actuating structure includes eccentric or
cam means whereby at least one movable contact is actuated
directly.
(1) Note. For devices in which the movable contact or
contacts are actuated by a spring or other energy storage
means after the spring has been wound or cocked by means of a
motor driven cam the search is in subclass 76 below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
190 below, for other significant contact actuating structure
comprising cam, roller or eccentric means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass
19.03 for combined rotary and cam operated periodic
switches, subclass 19.13+ for cam operated multiple contact
periodic switches, subclasses 19.20+ for cam operated
periodic switches, subclass 38 for clock train, cam actuated
retarded switches.
Subclass:
74
This subclass is indented under subclass 71. Subject matter
wherein the contact actuating structure includes braking,
clutch or detent means between the driving motor and the
driven movable contact or contacts whereby the speed of the
opening or closing operation, the interval during which the
driving and the driven means are connected or the degree of
contact pressure may be controlled or whereby the device may
be independently manually controlled.
SEE OR SEARCH CLASS:
188, Brakes, appropriate subclasses for mechanical brake
structures and operating means therefor.
192, Clutches and Power-Stop Control, appropriate subclasses
for clutches, motor and clutch control and power stop
controls.
200, Electricity: Circuit Makers and Breakers, subclass 180
for telephone type selector switches with clutch controlled
rotary motion.
307, Electrical Transmission or Interconnection Systems,
subclass 142 for switching systems including switch
actuating structure with braking means.
310, Electrical Generator or Motor Structure, subclasses 92+
for torque transmitting clutches or brakes.
Subclass:
75
This subclass is indented under subclass 74. Subject matter
wherein the brake, clutch or detent means is magnetically
operated.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclasses 103+
for torque transmitting clutches or brakes of the magnetic
field type.
Subclass:
76
This subclass is indented under subclass 71. Subject matter
wherein the contact actuating structure includes, mechanical
energy storage means whereby the movable contact or contacts
are actuated to or from the closed position, the energy
storage taking place through the agency of a motor wound
spring or other kinetic energy device. The energy storage
means may actuate the contacts through mechanical gearing
which comprises in itself all the elements of a spring motor;
for example, a clock movement actuated switch is considered
a motor driven switch for classification here provided the
spring is recharged by electric motor means. The storage
means may also consist of inertia means released by a motor
and transmitting energy via the force of gravity.
SEE OR SEARCH THIS CLASS, SUBCLASS:
14 for automatic circuit interrupting devices which may
utilize a core armature moving under the influence of the
force fo gravity.
30 for automatic circuit interrupters with mechanical motor
controlled latch or trip reclosing or resetting means.
65 for motor controlled (e.g., clockwork) switch actuation
delay means.
116 for multiple contact telephone type switches with
gravity actuated selector restoring means.
SEE OR SEARCH CLASS:
185, Motors: Spring, Weight, or Animal Powered, subclasses
4+ for plural weight actuated motors, subclasses 9+ for
plural spring actuated motors, subclasses 27+ for weight
actuated motors, per se, and subclasses 37+ for spring
motors, per se.
200, Electricity: Circuit Makers and Breakers, subclasses
17+ for plural circuit control switches with significant
operating means, subclasses 35+ for clock train actuated
retarded switches, subclasses 85+ for weight actuated
switches and subclasses 502+ for mechanical switch actuating
means.
246, Railway Switches and Signals, subclasses 221+ for
motor systems for railway electric switch and signal
actuation which may employ energy storage means.
307, Electrical Transmission or Interconnection Systems,
subclasses 139+ for switching systems having switches with
particular actuation means which may include energy storage
means.
318, Electricity: Motive Power Systems, subclasses 445+
especially subclasses 457 and 462, for automatic motor
control switches with energy storage means.
Subclass:
77
This subclass is indented under subclass 68. Subject matter
wherein the structure includes significant means whereby the
contacts or the contact actuating means may be positively
locked or latched to prevent any desired movement during the
existence of a predetermined condition of the switch, such as
open or closed. The locking or latching means will generally
be provided with tripping structure to allow the latch to be
released upon the termination of the predetermined
condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 21+ above, for automatic circuit interrupters
with significant latch or trip means.
113 for multiple contact switches with holding, locking or
latching means.
subclasses 157+ for significant locking or holding
structure.
subclasses 167+ for other electromagnetically actuated
switches with significant latch means.
subclasses 172+ for switches with tripping means.
subclasses 253+ for electromagnet and armature with
armature latch means.
Subclass:
78
This subclass is indented under subclass 2. Subject matter
wherein the structure comprises circuit connection devices in
which the movement of an armature depends upon the direction
of the voltage or current flowing in the circuit controlling
the armature. Usually the devices comprise an operating
magnet associated with a permanent magnet or a
constantly-energized electromagnet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
179 for electromagnetic actuated switches employing a
permanent magnet in addition to an electromagnet.
222 for relatively movable coil and permanent magnet.
subclasses 229+ for magnets and electromagnets with
armature utilizing permanent magnets, especially subclasses
230+ for the polarized type.
SEE OR SEARCH CLASS:
178, Telegraphy, subclass 93 for polarized code receivers
and subclasses 101+ for telegraph keys involving a polarized
relay.
310, Electrical Generator or Motor Structure, subclasses 152+
for the structure of rotary dynamo-electric machines with
permanent magnets.
318, Electricity: Motive Power Systems, subclasses 555+
for three or more position motor controlled systems which may
be electromagnetically actuated and may employ polarized
relays.
361, Electricity: Electrical Systems and Devices, subclass
76 for protective systems with phase sequence analyzer;
subclass 77 for protective systems responsive to reverse
phase; subclasses 78+ for protective systems of the reverse
energy or reverse current type; and subclass 208 for
electrical control circuits for polarized relays and
electromagnets.
Subclass:
79
This subclass is indented under subclass 78. Subject matter
wherein the switch comprises within itself or forms an
essential component of, a device into which information, in
the form of an electric signal, can be introduced for
extraction at a latter time, the switch being transferred to
one or the other of its conditions depending upon the
polarity of the energization current and remains in that
condition subsequent to deenergization until reset.
(1) Note. The subject matter to be found here relates only
to devices which essentially comprise a switching means
whereby an interval of time occurs between the application of
an input signal and the eventual completion of a circuit
between input and output terminals or wherein the contacts
are closed upon the application of a pulse of one polarity
and held closed until the subsequent application of a pulse
of another polarity.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 157+ for other electromagnetically actuated
switches with locking or holding means.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclasses 401+ for magnetic storage devices.
326, Electronic Digital Logic Circuitry, appropriate
subclasses for a transistorized logic circuit.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, subclasses 185+ for a miscellaneous
stable state circuit such as a bistable circuit.
365, Static Information Storage and Retrieval, appropriate
subclass for read/write storage systems comprising magnetic
storage elements.
Subclass:
80
This subclass is indented under subclass 78. Subject matter
wherein the device includes significant armature structure
specifically adapted for use in a polarity responsive
device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 95+ for armature structure for periodic
switches.
203 for significant armature structure for
electromagnetically actuated switches.
subclasses 232+ 234 and 235, for significant armature
structure in polarized electromagnet with armature.
subclasses 279+ for armature shape, structure and
material.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclass
208 for electric circuits for a polarized relay which relay
may have significant armature structure.
Subclass:
81
This subclass is indented under subclass 80. Subject matter
wherein the significant armature structure includes means
whereby the armature is supported in such a manner as to be
freely movable within an axial cavity of a coil or within the
flux field set up between pole faces. The motion may be
rotary around an axis or may be generally parallel with the
axis of the coil or in a plane in the direction of the axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 270+ for relays with significant armature
mounting means.
Subclass:
82
This subclass is indented under subclass 80. Subject matter
wherein the armature is not permanently attached at a fixed
point, therefore, being free to move in each of several
directions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
56 for conductive liquid switches having armature comprising
a freely movable floating slug or mass.
280 for significant armature structure comprising a ball,
granular material or magnetic filings.
Subclass:
83
This subclass is indented under subclass 78. Subject matter
wherein the device includes significant contact structure or
composition particularly adapted for use in a polarized type
switch.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 56+ for switches utilizing conductive liquid
with particular contact or electrode structure.
94 for periodic switches with particular contact arrangement
or composition.
subclasses 133+ for multiple contact switches with
particular contact structure or arrangement.
subclasses 196+ for other significant contact structure not
peculiarly adapted to a particular type switch.
Subclass:
84
This subclass is indented under subclass 78. Subject matter
wherein the device includes significant magnetic structural
elements or materials of construction and which are
particularly applicable to polarized systems.
SEE OR SEARCH THIS CLASS, SUBCLASS:
227 for saturable electromagnet with armature.
subclasses 230+ for permanent magnet polarized
electromagnet with armature.
subclasses 296+ for significant magnetic structure or
compositions and not peculiarly adapted for a specific type
switch or relay.
Subclass:
85
This subclass is indented under subclass 84. Subject matter
wherein the significant magnetic structure recited comprises
particular pole structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
281 below, for other significant magnetic pole structure.
Subclass:
86
This subclass is indented under subclass 78. Subject matter
wherein the structure includes means whereby some feature of
the device, such as the air gap, pole pieces, contacts, value
of the actuating current or armature neutral position, may be
adjusted or regulated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
212 for electronic and ionic beam deflecting magnets or
electromagnets with adjustable magnetic element.
298 for magnet core structure in general with movable or
adjustable core.
Subclass:
87
This subclass is indented under subclass 2. Subject matter
wherein the device comprises means whereby a circuit is
completed and broken intermittently or cyclically at
constantly recurring intervals under the influence of a
magnetic flux field.
(1) Note. The switches found here and in the indented
subclasses below are analogous to the converters (choppers)
utilized in Class 363, subclasses 106+ and subclass 124 where
the circuit interrupter forming a component of a Class 363
system is defined as a "periodic switch".
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 107+ below, for multiple contact type switches
having plural contacts which are selectively, cyclically,
alternately or intermittently actuated.
subclasses 151+ for hermetically sealed reed switches which
may be cyclically actuated.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass
19.01 for periodic circuit breakers generally.
307, Electrical Transmission or Interconnection Systems,
subclass 132 for repetitive make and break switching
systems.
310, Electrical Generator or Motor Structure, subclasses 15+
for reciprocating or vibrating electric motors comprising a
magnet, an armature and a contact arrangement causing
vibration or periodic motion of the armature when the magnet
circuit is closed.
315, Electric Lamp and Discharge Devices: Systems, subclasses
209+ for systems having a periodic switch in the supply
circuit of a load or loads.
318, Electricity: Motive Power Systems, subclass 37 for
plural reciprocating or oscillating electric motor systems
and subclasses 119+ for single reciprocating or oscillating
motor systems, especially indented subclass 134 for motor
systems with circuit making or breaking devices in the
energizing circuit.
361, Electricity: Electrical Systems and Devices, subclasses
1+ for circuit interrupting systems, subclasses 139+ for
periodic circuits for relays and electromagnets, and
subclasses 245+ for automatic pole changers.
363, Electric Power Conversion Systems, subclass 110 for an
inverter system comprising a vibrator means.
Subclass:
88
This subclass is indented under subclass 87. Subject matter
wherein the structure includes a plurality of devices falling
under the definition of subclass 87 but forming a single
assembly or single entity under the class definition or a
single device having a plurality of pairs of contacts whereby
two or more separate and distinct electrical circuits may be
completed through the device. This subclass does not include
those devices which comprise a single movable contact which
alternately contacts each of two fixed contacts thereby
varying the direction of current in the two conductors of a
single circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 107+ for plural contact alternating current
operated type switches under the class definition for
actuating a plurality of external circuits cyclically or
successively.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
23+ for periodic switches in general and having plural
contacts.
Subclass:
89
This subclass is indented under subclass 88. Subject matter
wherein the structure includes means whereby the plurality of
contacts are actuated in such a manner as to complete each
one of a plurality of circuits selectively, alternately or
consecutively.
SEE OR SEARCH CLASS:
315, Electric Lamp and Discharge Devices: Systems, subclasses
209+, especially subclass 217, for plural load device systems
having a periodic switch in the supply circuit.
Subclass:
90
This subclass is indented under subclass 87. Subject matter
wherein the structure includes means whereby the amplitude of
the vibrator or periodic motion, the natural resonant
frequency of the vibratory element, or equalization of the
periods between the engagement of the movable contact and
each one of fixed contacts is controlled or set.
SEE OR SEARCH THIS CLASS, SUBCLASS:
46 for automatic circuit interrupters with contact rebound
prevention means.
104 for alternating current operated type switches with
chatter, bounce or vibration prevention means.
193 for contact vibration, bounce or chatter prevention
means in general.
271 for armature bounce or vibration preventing means in
general.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass
19.05, 19.11, 19.19, and 19.21+ for other periodic switches
with adjusting means.
Subclass:
91
This subclass is indented under subclass 87. Subject matter
wherein the structure comprises significant magnetic
structure or material peculiarly adapted for use in a
periodic or cyclic switch.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 205+ for switch structure, not restricted to a
specialized subclass, utilizing a permanent magnet or
magnets.
296 significant magnet structure not specifically restricted
to use in electromagnetic switches.
Subclass:
92
This subclass is indented under subclass 91. Subject matter
wherein the magnetic structure includes at least two or more
distinct magnetic means which may or may not be of diverse
type and each of which performs its particular function
independently of the other. For example, one magnetic means
may consist of fluctuating magnetic field generating means
for actuating an armature or reed while the other consists of
a permanent magnet providing a biasing means for the armature
or reed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 177+ below, for other electromagnetic switches
utilizing plural magnets.
subclasses 266+ for magnets or electromagnets and armatures
with plural coils or magnets.
306 for the structure of plural permanent magnets, per se.
Subclass:
93
This subclass is indented under subclass 87. Subject matter
wherein the structure includes significant vibratory reed or
other periodically actuated means whereby a movable contact
or contacts is periodically caused to engage one or more
fixed contacts. The vibratory reed or other actuating
structure may be unitary with or comprise the armature of the
magnet means and still be classified here as long as the
motion of the movable contact is directly responsive to or
proportional to the movement of the armature.
(1) Note. Armature structure peculiar to the subclass 87
special type switch and separate from the contact actuating
reed, or other means, is classified in subclasses 95+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
154 for reed switches with significant contact actuating
structure where the reed may also act as an armature.
subclasses 185+ for other electromagnetic switches with
significant contact actuating means.
235 for polarized electromagnet with vibrating reed or
spring bar armature.
SEE OR SEARCH CLASS:
84, Music, subclass 409 for tuning forks, per se.
178, Telegraphy, subclasses 47+ for telegraph transmitters
or receivers utilizing vibrating reeds.
310, Electrical Generator or Motor Structure, subclass 25
for reed type reciprocating motor structures and subclasses
32+ for self actuated interrupter devices utilizing flat
spring armatures.
324, Electricity: Measuring and Testing, subclass 76.49 for
frequency meters utilizing tuned reeds.
331, Oscillators, subclass 156 for oscillators with
vibrating reed or string type electromechanical resonators.
333, Wave Transmission Lines and Networks, subclasses 186+
for electromechanical transducer type (tuning fork) electric
wave filters.
Subclass:
94
This subclass is indented under subclass 93. Subject matter
wherein the vibratory reed or other contact actuating means
is pretuned or inherently resonant at a particular
predetermined frequency or band of frequencies.
(1) Note. Tuned mechanical resonators such as reed or piezo
crystal devices when used as means for measuring the
frequency of a cyclic current will be found in Class 324,
especially subclass 76.49, and electrical wave filters of the
electro mechanical transducer type will be found in Class
333, subclasses 186+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
101 below, the alternating current responsive switches which
are responsive to a predetermined or synchronous frequency.
Subclass:
95
This subclass is indented under subclass 87. Subject matter
wherein the structure includes significant and specific
details of the armature element or material of construction
distinct from the vibratory reed or contact actuating means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 55+ for conductive fluid type switches with
particular armature structure.
subclasses 80+ for polarity responsive switches with
particular armature structure.
93 for significant vibratory reed structure.
124 for multiple contact switches with particular armature
structure.
154 below, for armature structure for plural vacuum switches
of the reed type.
203 below, for armature details, per se.
249 for alternating current electromagnet with special
armature construction or mounting means.
261 for electromagnet with plunger type armature of
particular structure or material.
279 for armature shape, structure or material in general.
Subclass:
96
This subclass is indented under subclass 95. Subject matter
wherein the structure includes means whereby some operating
characteristic, physical dimension or element of the armature
is adjustably variable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
144 for electromagnetic switch combined with an
electrothermal actuator and having means to position or
adjust the armature.
258 for electromagnet and plunger armature with stroke
adjustment for the armature.
273 for electromagnet and armature with armature biasing
means or bias adjustment means.
Subclass:
97
This subclass is indented under subclass 87. Subject matter
wherein the structure includes significant and specific
details of the contact structure or material of construction
thereof. For purposes of classification in this subclass,
contact supporting, holding and adjusting means are
considered contact structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 57+ for conductive liquid switches with
particular contact or electrode structure.
83 for polarity responsive switches with particular contact
structure or composition.
subclasses 133+ for multiple contact switches with
particular contact structure or arrangement.
154 for reed switches with significant contact structure.
subclasses 196+ for contact structure applicable to
electromagnetic switches in general.
Subclass:
98
This subclass is indented under subclass 97. Subject matter
wherein the contact structure includes adjustment means
whereby some operating characteristic, physical mounting or
element may be adjustably varied.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 194+ for contact actuating means with contact
pressure maintaining or adjusting means.
197 below, for adjustable contact structure which is not
peculiarly adapted for use with any particular type switch
means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 166
for details of contact structure for nonmagnetically actuated
switches.
Subclass:
99
This subclass is indented under subclass 2. Subject matter
wherein the device is specifically adapted for operation by
an alternating, pulsating or fluctuating current. The
actuating current may be a periodic current, the average
value of which over a given period is zero and which varies
according to a sinusoidal function, a bi-directional current
which has both positive and negative values, or a periodic
current which is the sum of a direct current and an
alternating current.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 68+ for switch actuating means comprising an
induction motor whose armature comprises a vane making at
least one complete revolution about its axis.
231 for polarized electromagnet responsive to the varying
amplitude of an alternating current.
subclasses 243+ for electromagnets and armature of the
alternating current type.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
1+ and appropriate subclasses, for safety and protective
systems which may be AC responsive and subclasses 139+ for
alternating current circuits for relays and electromagnets.
Subclass:
100
This subclass is indented under subclass 99. Subject matter
wherein the contact actuating means comprises, or is
responsive to, a device which derives its operative torque by
magnetic induction from a winding or windings carrying
alternating current, by the magnetic reaction between a
current flowing in a rotor and an external flux path or by
the magnetic repulsive force between magnetic flux sources.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 68+ especially indented subclass 70, for
induction or synchronous type switch contact operators of the
continuously rotating motor type (e.g., induction or
synchronous motor).
subclasses 224+ for magneto-mechanical motive device of
dynamometer type utilizing an induced current movable
conductor (e.g., eddy current number).
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclasses 105+
for torque transmitting clutches or brakes with induced or
eddy current magnetic field and subclasses 166+ for the
structure of induction type dynamo-electric machines in
general.
318, Electricity: Motive Power Systems, subclasses 727+
for induction motor control systems in general.
324, Electricity: Measuring and Testing, subclasses 137+
for eddy current rotor meters (e.g., AC integrating watt hour
meter type instruments).
Subclass:
101
This subclass is indented under subclass 99. Subject matter
wherein the device is adapted to selectively operate at a
predetermined frequency of the alternating operating current
or wherein resonant vibration of a tuned reed armature will
only occur when the cyclic period of the alternating current
is the same as the resonant frequency of the tuned reed.
(1) Note. A large number of the patents found here are
analogous to those to be found in subclass 94 above, the
difference residing in the fact that in this subclass the
vibrating member is comprised of the armature itself while in
the vibrator group above the armature is generally separate
from the vibratory contact actuating means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
70 for frequency responsive or synchronous motor switch
actuating means.
78 for polarized relays which may utilize in alternating
current source for the magnetic coil.
subclasses 93+ for switches of the vibratory type which may
or may not be restricted to alternating current operation.
subclasses 243+ for alternating current responsive
electromagnets with vibrating armature structure.
SEE OR SEARCH CLASS:
178, Telegraphy, subclasses 47+, for harmonic or vibrating
reed type telegraph transmitter or receiver means.
307, Electrical Transmission or Interconnection Systems,
particularly subclass 87 for frequency responsive connecting
and disconnecting plural supply systems and subclass 129 for
frequency responsive switching systems in general.
310, Electrical Generator or Motor Structure, subclass 25,
for tuned reed type motors or generators and subclasses 162+,
for synchronous motor or generator structures.
318, Electricity: Motive Power Systems, subclasses 700+
for synchronous motor control systems.
361, Electricity: Electrical Systems and Devices, subclasses
160+ for frequency responsive relay systems, particularly
subclasses 171+ for code responsive electric circuits for
relays, and subclass 183 for plural relays that are frequency
responsive.
Subclass:
102
This subclass is indented under subclass 99. Subject matter
wherein the device is specifically adapted to operate in
response to the currents in the respective phases of a
multiphase or polyphase system, whereby one polyphase network
is connected to another similar polyphase network through the
device or wherein the device consists of a plurality of
magnetic windings and having supplied to each winding an
operating current at a phase angle different from that
applied to each of the others.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 8+ for polyphase automatic circuit interrupter
devices.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses for nonmagnetically operated switches of the
multiphase type.
307, Electrical Transmission or Interconnection Systems,
subclasses 13+ for polyphase systems in general that may
include phase switches. An subclasses 112+ for plural phase
switches especially indented subclass 127 for phase sequence
responsive type.
361, Electricity: Electrical Systems and Devices, subclasses
1+ for safety and protection systems which may utilize
plural phase type devices.
Subclass:
103
This subclass is indented under subclass 99. Subject matter
wherein the electromagnetic operating means includes a
plurality of magnetic flux sources.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 8+ for automatic circuit interrupters of the
multipole or polyphase type.
92 for vibratory type switches with plural magnets.
136 for multiple contact type switches with plural magnet or
coil means.
149 for electrodynamic type switch operators utilizing
plural relatively movable coils.
subclasses 177+ for electromagnetically operated switches
generally employing plural magnets.
207 for permanent magnet actuated switches utilizing plural
permanent magnets.
222 for relatively movable coil and permanent magnet.
subclasses 223+ for plural relatively movable coil devices
(e.g., dynamometer type).
subclasses 230+ for permanent magnet polarized
electromagnet and armature.
246 for alternating current type electromagnetic motive
devices with plural windings.
Subclass:
104
This subclass is indented under subclass 99. Subject matter
wherein the structure includes means whereby the contacts of
the device are prevented from chattering due to counter
electromotive forces in the circuit or other causes,
rebounding upon closing or whereby the armature is prevented
from rocking or vibrating due to the pulsating force in the
operating coil when energized by alternating current.
SEE OR SEARCH THIS CLASS, SUBCLASS:
46 for automatic circuit interrupting devices with rebound
or chatter prevention means.
193 for significant contact actuating structure including
vibration, bounce or chatter prevention means.
subclasses 247+ for alternating current electromagnet and
armature, per se, with chatter or noise preventing means.
271 for electromagnet and armature mount in general with
armature bounce or vibration preventing means.
277 for magnetomechanical motive device in general with
shock absorption, vibration or bounce preventing means.
Subclass:
105
This subclass is indented under subclass 99. Subject matter
wherein the structure includes means whereby at least one
element of the device, or some operating characteristic is
adjustable either at will or permanently, the extent of
movement of either the armature or the movable contact is
adjusted or regulated, or whereby the speed of such movement
is controlled.
SEE OR SEARCH THIS CLASS, SUBCLASS:
67 for retarded or delayed type switches with adjustable or
regulatable features.
86 for polarity responsive switches with regulating means.
90 for periodic switch with adjustable vibrating element.
132 for multiple contact type with adjustable or replaceable
structure.
144 for electromagnetically combined with electrothermal
actuator and having means to position or adjust the
armature.
197 for adjustable or readily detachable contact structure.
212 250, 273, 287, 295, and 298, for various
electromechanical motive devices or holding magnets with
adjustable features.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 170
for nonmagnetically actuated switches with contact pressure
adjusting means.
361, Electricity: Electrical Systems and Devices, subclass
206 for relay systems having relays with contact pressure
increasing means.
Subclass:
106
This subclass is indented under subclass 2. Subject matter
wherein the switch structure includes a plurality of fixed
contacts each one of which, either singly or in a common
group, is adapted to be connected to a separate independent
external electrical circuit in such a manner that upon being
contacted by a movable contact, or contacts, operated by the
magnetic control means, a separate distinct electrical
circuit is completed therethrough.
(1) Note. For purposes of classification in this or the
indented subclasses auxiliary contacts, whose purpose is to
control some function of the switch itself, in addition to
main circuit controlling contacts, are not considered as
comprising plural contacts.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 8+ for automatic circuit interrupters of the
multiple or polyphase type.
11 for plural switch structures of the automatic circuit
interrupter type.
48 for liquid contact switches with three or more contacts.
60 for retarded switches with plural sets of contacts.
72 for motor actuated switches of the plural contact type.
88 for periodic switches with plural pairs of contacts.
102 for alternating current switches of the polyphase type.
152 for the combination of plural of vacuum or sealed type
switches.
206 for the combination of plural permanent magnet actuated
switches.
SEE OR SEARCH CLASS:
178, Telegraphy, particularly subclass 102 for multiple
contact devices peculiarly adapted for telegraph keying.
200, Electricity: Circuit Makers and Breakers, subclasses 1+
for multiple circuit control devices generally.
307, Electrical Transmission or Interconnection Systems,
appropriate subclasses for plural circuit switching systems
in general, particularly subclasses 33+ for selectively
connected load circuits, subclasses 85+ for selectively
connected electric sources, and subclasses 112+ for
miscellaneous switching systems, indented subclasses 113+ for
providing for plural switches.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 2 for current shifting switches.
315, Electric Lamp and Discharge Devices: Systems, subclasses
211+ for a periodic switch in the supply circuit of a
plurality of load devices.
338, Electrical Resistors, subclasses 92+ for a multipart
resistor with switch means whereby portions of the resistive
material may be short circuited.
361, Electricity: Electrical Systems and Devices, subclasses
139+ for systems for selectively controlling a plurality of
relays or electromagnets.
370, Multiplex Communications, subclasses 304+ for
multiplexing systems which include rotary distributor
switches, and subclass 531 for multiplexing systems which
include magnetic core switching.
Subclass:
107
This subclass is indented under subclass 106. Subject matter
wherein the structure includes significant means whereby
individual contacts connected to external circuits may be
actuated in such a manner that a plurality of individually
controlled circuits are completed through the device
selectively, sequentially, or alternately.
SEE OR SEARCH THIS CLASS, SUBCLASS:
60 for delayed operation switches with plural sets of
contacts alternately or selectively opened or closed.
89 for periodic switch devices with plural pairs of
selectively or alternately actuatable.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass
19.06 for nonmagnetically actuated periodic switches with
multiple contacts.
307, Electrical Transmission or Interconnection Systems,
especially subclass 29 for plural source systems with
selectively connected loads of sources, subclass 37 for
serially connected load circuits with selective series
parallel connections, subclasses 38+ for selectively
connected load circuits and indented subclass 41 for
sequential or alternating connected load circuits, and
subclasses 80+ for selectively connected sources.
315, Electric Lamp and Discharge Devices: Systems, subclass
226 for a periodic multiple contact switch in the supply
circuit of an electric lamp or other discharge device.
340, Communications: Electrical, subclasses 806+, for
systems wherein a plurality of contacts are selectively
actuated, to control energization of a display system.
341, Coded Data Generation or Conversion, subclasses 22+
for a selective switch array controlling a pulse code
transmitter.
361, Electricity: Electrical Systems and Devices, subclasses
166+ for selectively or sequentially actuated relays.
Subclass:
108
This subclass is indented under subclass 107. Subject matter
wherein the contact actuating structure comprises self-acting
means, operating by its own self-contained mechanism when
actuated by some impersonal influence, as for example, a
change in current strength or a signalling current or voltage
transmitted from a distance, which is not manual and
requiring personal intervention, i.e., not requiring the
presence of an operator. The art to be found in this and the
indented subclasses is analogous to the automatic telephone
type switching arrangements to be found in Class 379,
subclasses 16+; but which is of general application and not
restricted to any one art device specifically otherwise
classifiable. The devices classified here may utilize
mechanical structure for the actuation of the main contacts
which are to be controlled, provided that the primary
instigating means comprises electromagnetic or other magnetic
means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
175+ for multiple contact switches analogous to those found
here and in the indented subclasses but not claimed as
electromagnetically actuated.
Subclass:
109
This subclass is indented under subclass 108. Subject matter
wherein the contact actuating structure comprises a movable
contact or wiper means movable in more than a single
direction whereby the contacts are selectively chosen. The
movement may comprise any combination of vertical, rotary,
radial or other motions. The two or more directional
movements are usually accomplished by means of separate
magnet devices each operating separately in response to a
given condition in the device.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
176+ for similar switching devices not specifically claimed
as electromagnetically controlled.
Subclass:
110
This subclass is indented under subclass 109. Subject matter
wherein the device includes means, in addition to the
directional driving mechanism, whereby motion in a first
direction is converted to a motion in a second direction.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, appropriate subclasses for
mechanical motion conversion means, per se.
Subclass:
111
This subclass is indented under subclass 109. Subject matter
wherein the structure includes details of at least one device
which, in response to the appropriate control signals,
connects one input path to one of a number of output paths,
or alternatively, one of a number of input paths to one
output path.
(1) Note. To complete the search for this subject matter
consult the search notes for subclass 109, above.
Subclass:
112
This subclass is indented under subclass 111. Subject matter
wherein the structure includes a device having a plurality of
contacts arranged in a vertical path, a plurality of contacts
arranged in a plurality of horizontal paths and an
electromagnetically operated means for interconnecting any
one or any group of the vertically arranged contacts with any
one or any group of the horizontally arranged contacts.
SEE OR SEARCH CLASS:
340, Communications: Electrical, subclass 825.79 for
selective signalling systems utilizing matrix type (e.g.,
crossed gratings) switching devices.
Subclass:
113
This subclass is indented under subclass 108. Subject matter
wherein the device includes holding, latching or locking
means whereby a selected set of movable contacts or a brush
is caused to lock onto a particular bank of contacts or a
single contact in a given bank when moved to an operated
condition and remain in the operated condition until released
by some external actuating means or signal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 21+ for automatic circuit interrupters with
latch or trip means.
77 for motor actuated switches with locking latch or
tripping structure.
164 for switches having manually or force of gravity
operated latch with electromagnetic trip.
166 for switches with reset means for latch or trip.
subclasses 167+ for switches with latching means.
subclasses 172+ for switches with tripping means.
subclasses 253+ for electromagnet and armature with latch
means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
175+ for similar switching devices not peculiarly adapted
for telephone systems and not claimed as being
electromagnetically actuated.
Subclass:
114
This subclass is indented under subclass 108. Subject matter
wherein the structure includes significant means whereby
contact selection is accomplished by movement of a selector
mechanism movable in a rotary manner in a single plane, as
for example, circular movement in a horizontal plane.
SEE OR SEARCH THIS CLASS, SUBCLASS:
72 for motor driven switches of the plural contact type.
122 for plural contact selective switches with contact
actuator of the rotary type.
130 for simultaneously actuated plural contact switches with
movable contacts on a circular card or comb structure.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses 1+
for similar switches not utilizing electromagnetic control
means and periodic switches having plural contacts with
rotary selector means.
Subclass:
115
This subclass is indented under subclass 108. Subject matter
wherein the structure includes means whereby one or more
carriers for the contact selecting means is caused to move or
reciprocate in a single plane. The motion is usually in a
vertical plane.
SEE OR SEARCH THIS CLASS, SUBCLASS:
126 for multiple contact switches in general wherein the
contact actuator reciprocates or slides.
129 for switches comprising simultaneously actuated movable
contacts on a slidable card or comb.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 16
for multiple circuit control switching, device with
reciprocating contact means.
Subclass:
116
This subclass is indented under subclass 108. Subject matter
wherein the structure includes positive acting means whereby,
after the completion of a contact selection operation, the
selector is automatically returned to an initial position in
readiness for a further selection operation.
Subclass:
117
This subclass is indented under subclass 108. Subject matter
wherein the structure comprises means whereby the wiper or
contact selector is caused to be advanced in steps of
different lengths or intervals covering variable numbers of
terminals or contacts. The structure included here includes
devices having a single operating mechanism for moving a
brush set in one direction in steps of one length and in
another direction in steps of another different length.
Subclass:
118
This subclass is indented under subclass 108. Subject matter
wherein the structure includes significant electric motor
means whereby the selector actuating means is driven in
response to an input signal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 68+ for electric motor driven switches,
especially subclass 72 for switches including plural
contacts.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 17
for multiple control switches with significant operating
means which may comprise an electric motor.
Subclass:
119
This subclass is indented under subclass 107. Subject matter
wherein the contact control operation is accomplished through
the actuation of a plurality of armatures either acting
conjointly to operate a single contact actuating means or
each individually operating a separate contact actuating
means. The structure found in this subclass may include a
plurality of magnetic coils each operating one of the
plurality of armatures or a single coil driving two or more
armatures.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 177+ for switches utilizing plural coils or flux
sources or armatures.
subclasses 232+ for polarized electromagnet with plural
armatures.
242 for electromagnet having plural armatures with means to
selectively retard them.
259 for electromagnet with plural plunger armatures.
265 for electromagnets having plural armatures actuated by a
single coil.
267 for electromagnets having plural coils driving plural
armatures.
Subclass:
120
This subclass is indented under subclass 119. Subject matter
wherein the structure includes interlocking or mechanical
means whereby the armatures are caused to be operated in
unison or whereby one or both are adapted to exercise control
over the other thereby causing the completion of selected
electrical circuits through the device in the proper
sequence.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 160+ for plural independently operative switches
with interlocking means.
233 for polarized electromagnet with plural armatures having
armature locking means.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
160+ for relays or electromagnets with plural armatures
having interlocking means, particularly subclasses 191+.
Subclass:
121
This subclass is indented under subclass 107. Subject matter
wherein the structure includes significant means, operatively
connected to or combined with an armature, whereby the
plurality of contacts are actuated from a first to a second
or subsequent condition thereby completing selected circuits
through the device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 71+ for motor operated switches with significant
contact actuating means.
subclasses 138+ for step-by-step switches with significant
contact actuating means.
subclasses 185+ for significant contact actuating means not
specifically adapted for use in any particular type switch.
Subclass:
122
This subclass is indented under subclass 121. Subject matter
wherein the significant contact actuating means comprises at
least one member which is moved in a circular arc by a
rotating member or a plurality of members which collectively
transpose a motion of a first type to a second motion of
another type; as for example, a reciprocating motion is
converted to a rotary motion, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
114 for automatic telephone type switches with rotary
selector motion.
130 for plural contact switches with movable contacts on a
circular card or comb structure.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, appropriate subclasses for
various compound mechanical movements.
200, Electricity: Circuit Makers and Breakers, subclass 4
for multiple circuit control switches utilizing combined
pivoted and reciprocating contacts and subclasses 175+ for
automatic multiple contact selective switches utilizing
combined or compound motions.
Subclass:
123
This subclass is indented under subclass 122. Subject matter
wherein the contact actuating means comprises significant
structural details of a pawl and ratchet device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
140 for switches of the step-by-step type utilizing pawl and
ratchet mechanism.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclass 575 for pawl and
ratchet devices of general utility.
Subclass:
124
This subclass is indented under subclass 121. Subject matter
wherein the contact actuating structure is combined with
armature structure which within itself comprises significant
means whereby the actuating means is controlled.
SEE OR SEARCH THIS CLASS, SUBCLASS:
187 below for significant contact actuating means not
specifically utilized in any special type switch and combined
with an armature.
Subclass:
125
This subclass is indented under subclass 124. Subject matter
wherein the armature structure comprises an armature pivoted
or otherwise supported at a point in such a manner as to be
alternately attracted by different poles of a magnet
structure for producing motion in a rotary or oscillatory
manner whereby the contacts are caused to be selectively
opened or closed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
72 for plural contacts actuated by rotary electric motor.
181 for plural magnets actuating a single pivoted armature.
272 for rotary disc or cylinder armatures. 276, for pivoted
armature structure for electromagnets.
Subclass:
126
This subclass is indented under subclass 121. Subject matter
wherein the contact actuating means consists of a device
which is linearly slidable or reciprocable in alternate
reverse directions along a single fixed axis or in a single
plane, e.g., sliding bar or comb.
SEE OR SEARCH THIS CLASS, SUBCLASS:
112 for automatic telephone type switches of the cross bar
type.
115 for automatic telephone type switches with reciprocating
sliding motion.
129 for multiple contact switches with movable contacts on
slidable card, bar or comb.
SEE OR SEARCH CLASS:
178, Telegraphy, subclass 86 for telegraph code transmitter
with reciprocating contacts.
200, Electricity: Circuit Makers and Breakers, subclass 4
for combined pivoting and reciprocating contact switches and
subclass 16 for multiple circuit switch structures with
reciprocating contact.
Subclass:
127
This subclass is indented under subclass 106. Subject matter
wherein the structure includes at least one group of contacts
adapted to operate as a unit, and means whereby all of the
contacts of at least one group are actuated in a manner such
that all of the plurality of external circuits connected to
the contacts of the group are completed or opened
simultaneously.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 8+ for automatic circuit interrupting multipole
or polyphase switches.
88 above, for cyclic or periodical switches with plural
contacts which may or may not be operated simultaneously.
Subclass:
128
This subclass is indented under subclass 127. Subject matter
wherein the structure includes at least one armature;
rockable about an axis coinciding with the coil axis or
otherwise pivoted for rotation about a fixed axis and
combined with means, depending upon the attraction or
nonattraction of the armature, whereby at least a group of
the plurality of contacts are actuated as a group.
Subclass:
129
This subclass is indented under subclass 128. Subject matter
wherein the structure includes at least one slidable card,
bar or comb means actuatable by the armature and adapted to
embrace a plurality of movable contacts simultaneously.
SEE OR SEARCH THIS CLASS, SUBCLASS:
115 for automatic telephone type multiple contact switches
with sliding selector motion.
126 for selective multiple contact switches with linear
sliding contact actuation means.
Subclass:
130
This subclass is indented under subclass 128. Subject matter
wherein the structure includes at least one circular plate,
comb or other means whereby either first plurality of
contacts, a second such plurality, or both are caused to be
moved in a circular path having a common axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
114 for automatic telephone switches with rotary selector
motion.
122 for selective multiple contact switches with rotary
motion contact actuator.
Subclass:
131
This subclass is indented under subclass 127. Subject matter
wherein the structure includes a sliding core armature
reciprocal in a linear manner, along the axis of, or in a
plane parallel with the axis of the controlling magnet coil.
The contact actuating means may be directly attached to the
core armature or may be otherwise attached by mechanical
structure which is actuatable by the motion of the armature.
SEE OR SEARCH THIS CLASS, SUBCLASS:
14 for automatic circuit interrupting devices which have a
movable contact, or contacts, directly operable by a sliding
core armature.
251 for alternating current magnets or electromagnets with
plunger type armature.
subclasses 255+ for magnets or electromagnets with plunger
type armatures.
Subclass:
132
This subclass is indented under subclass 106. Subject matter
wherein the structure includes at least one structural unit
which is specifically described as adapted to be adjusted,
interchangeable, removable or replaceable without effecting
the operativeness of the device as a whole or whereby some
operative characteristic of the device may be varied.
SEE OR SEARCH THIS CLASS, SUBCLASS:
42 and 45, for automatic circuit interrupting devices with
adjustable trip structure.
67 for retarded or delayed action type switches with
adjustable delay means.
86 for adjustable polarized switches.
96 and 98, respectively, for armature or contact adjusting
means in vibrator type switches.
176 for magnetically actuated tripping means not
specifically claimed in an automatic circuit interrupter.
subclasses 197+ for adjustable contact structure.
212 237, 258, 287, 295, and 298, respectively for magnets or
electromagnets with various adjustable features.
Subclass:
133
This subclass is indented under subclass 106. Subject matter
wherein the structure includes significant details of the
contact arrangement or structure; for example, a matrix or
cross bar arrangement, which particularly adapts the contact
assembly to operate in a predetermined manner or sequence.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 15+ for automatic circuit interrupters with
contact biasing, holding or pressure control means.
subclasses 57+ for contact or electrode structure for
conductive liquid type switches.
83 for polarity responsive switch contact structure or
composition.
subclasses 97+ for periodic switch contact arrangement or
composition.
subclasses 196+ for significant contact composition or
structure not specifically adapted for use in any particular
special type switch.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
166+ for significant contact details.
340, Communications: Electrical, subclass 825.79 for matrix
type crossed gratings with selectively energized conductors
and
361, Electricity: Electrical Systems and Devices, subclass
822 for wire bank assemblies.
Subclass:
134
This subclass is indented under subclass 133. Subject matter
wherein the contacts are arranged in coordinate rows in
planes which are at an angle to each other (usually a right
angle) or in a grid arrangement, whereby contact is made by
displacing one contact perpendicularly to another. The
switches found here are for the most part those known as
crossbar or coordinate types, similar to those found in Class
379, subclass 25, but not limited by the claim language to
use in a telephone system.
SEE OR SEARCH CLASS:
340, Communications: Electrical, subclass 825.79 for matrix
type contact arrangements in selective signalling systems.
Subclass:
135
This subclass is indented under subclass 133. Subject matter
wherein the contacts are specifically arranged in a pile or
stack.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
166+ for miscellaneous contact structure.
Subclass:
136
This subclass is indented under subclass 106. Subject matter
wherein the structure includes a plurality of magnet or coil
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 8+ for automatic circuit interrupters for the
polyphase or multipole type having plural electromagnets.
92 for periodic switches with plural magnets.
102 for alternating current switches of the polyphase type.
103 for alternating current switches with plural magnetic
actuators.
149 for electrodynamically operated switches of the moving
coil type with plural coils.
subclasses 177+ for electromagnetically controlled switches
in general utilizing plural magnets or other flux sources.
207 for permanent magnet actuated switches with plural
magnets.
subclasses 223+ for magnetomechanical motive devices of the
relatively moving conductor type.
246 for alternating current magnetomotive device with plural
windings.
subclasses 266+ for electromagnet structure comprising
plural coils or magnets.
Subclass:
137
This subclass is indented under subclass 136. Subject matter
wherein the plural magnets are of diverse magnetic
characteristics, as for example, electromagnet and permanent
magnet or comprise diverse type windings.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 159+ for plural independent switches each of
which may utilize one or more windings.
179 for magnetic switches in general utilizing plural
diverse type magnets.
subclasses 229+ for magnetomotive devices having permanent
magnet and electromagnet structure.
Subclass:
138
This subclass is indented under subclass 2. Subject matter
wherein the device comprises means whereby plural successive
energizations of a control magnet by pulses of control signal
current produce a sequential or step-by-step operation of a
contact actuation means whereby a single set of main contacts
are opened or closed at the end of the sequence of pulsations
sequence of actuating pulses may comprise any number of
pulses from two or more.
(1) Note. The subject matter to be found in this and the
indented subclasses should be distinguished from that
classified in subclasses 107+, above, wherein a plurality of
contacts are actuated in sequence in such a manner as to
complete a plurality of circuits sequentially through the
devices. While the contact actuating means in the above group
may be similar to those found here the fundamental
distinction between the two groups is that in the subclasses
107+ group there are a plurality of circuits controlled while
in this group only a single set of main contacts is
utilized.
Subclass:
139
This subclass is indented under subclass 138. Subject matter
wherein the structure includes means whereby the successive
steps take place at definite intervals, after a predetermined
time or in a given order or whereby it is possible to
determine the interval during which the contacts are held in
the make or break condition after arrival in that condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
30 for automatic circuit interrupters with mechanical motor
controlled (e.g., clock movement) latch or trip setting delay
means.
subclasses 64+ for retarded or delayed type switches
wherein the contact actuation takes place after a
predetermined interval governed by a motor of clock work
mechanism.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 410
for rotating contact type snap switches operating in a
step-by-step manner whereby the movable contact member is
rotated by a series of pulses.
236, Automatic Temperature and Humidity Regulation, subclass
76 for control and regulating systems utilizing step-by-step
actuation of an electric motor.
307, Electrical Transmission or Interconnection Systems,
subclass 141 for switch actuation means with time delay
which may employ step-by-step switch actuation means.
Subclass:
140
This subclass is indented under subclass 138. Subject matter
wherein the structure includes ratchet and pawl type
mechanical operating means under the control of an armature
or armatures whereby the contacts are actuated to and from a
closed condition in a step-by-step manner.
SEE OR SEARCH THIS CLASS, SUBCLASS:
123 for devices in which a plurality of sets of contacts are
actuated selectively or sequentially operated by ratchet and
pawl means.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, appropriate subclasses,
particularly subclasses 575+, for specific machine elements
and mechanisms of the pawl and ratchet type.
200, Electricity: Circuit Makers and Breakers, subclass
61.69 for a circuit maker or breaker whose cycle of
operation corresponds to more than one opening and closing of
a closure means.
340, Communications: Electrical, subclass 825.65 for remote
controlled signalling devices with pulse counting means,
subclasses 309.1+ for systems which are timer controlled.
361, Electricity: Electrical Systems and Devices, subclasses
160+ for electric circuits for relays or electromagnets
utilizing a time delayed operating switch.
Subclass:
141
This subclass is indented under subclass 2. Subject matter
wherein the subject matter includes the combination of
magnetic responsive control means combined with
terminal-current responsive means, such as fuses, cut-outs,
latching or other means effecting the operation of the device
as a result of heating by current flow. Usually, both
diversely responsive devices operate upon the same contact
actuation or control means. The heating current may comprise
the entire current flowing in the controlled circuit or a
proportionate part thereof flowing in a shunt circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
31 for thermal controlled latch or trip delay means in
automatic circuit interrupters.
subclasses 35+ for automatic circuit interrupting devices
with combined magnetic and thermal current trip means.
subclasses 39+ for automatic circuit interrupter with
magnetic latch or trip including thermal delay means.
subclasses 43+ for automatic circuit interrupters with
thermally actuated latch or trip means.
66 for retarded or delayed type switches with thermal delay
means.
156 for switches with protective means responsive to heat.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 3
for multiple circuit control devices with thermal current
control means.
219, Electric Heating, subclass 110 for resistance heating
systems with current supply responsive to current voltage or
temperature and subclasses 510+ for heating systems including
automatically controlled switches with thermally responsive
means.
236, Automatic Temperature and Humidity Regulation, subclass
68 for systems with relay structure combined with auxiliary
heater means.
307, Electrical Transmission or Interconnection Systems,
subclass 117 for switching systems responsive to heat.
318, Electricity: Motive Power Systems, subclasses 471+
for electric motor systems including automatic control
switches with thermal control means for the switch.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 14 for nonmagnetically actuated switches
which are responsive to heat generated by the current in a
protected circuit and subclass 298 for switches which are
responsive to heat from an external source.
361, Electricity: Electrical Systems and Devices, subclass
99 for safety and protective systems including combined
thermal-electromagnetic relays in a time delay means, and
subclasses 160+ for electric circuits for relays and
electromagnets with thermal control means.
Subclass:
142
This subclass is indented under subclass 141. Subject matter
wherein the thermal current responsive means is specifically
recited as consisting of at least one fusible element.
SEE OR SEARCH CLASS:
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 142 for fusible element actuated
electrothermally controlled switches and 401+ for thermal
switches employing fusible, combustible or explosive means.
361, Electricity: Electrical Systems and Devices, subclasses
1+ for thermally actuated safety and protective devices,
especially subclasses 23+ and 103+.
Subclass:
143
This subclass is indented under subclass 141. Subject matter
wherein the structure includes significant details of both
the magnetic and thermal devices, and in which each is
operative to close or interrupt an electrical circuit
independently of the other.
Subclass:
144
This subclass is indented under subclass 141. Subject matter
wherein the structure includes means whereby the physical
position of the armature relative to magnetic pole pieces or
within an air gap at any given time is responsive to or
depends upon the influence of the thermal means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
96 for periodic switches with armature adjustment.
subclasses 217+ for electromagnet and armature of the
temperature responsive type which include means for adjusting
the armature by thermally responsive means.
SEE OR SEARCH CLASS:
315, Electric Lamp and Discharge Devices: Systems, subclass
104 for systems comprising means for supplying delayed
discharge potential to the cathode circuit of discharge
devices and including thermostatic delay means.
Subclass:
145
This subclass is indented under subclass 141. Subject matter
wherein the thermal current responsive means is specifically
recited as consisting of at least one bimetallic element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 43+ for thermal trip structure with a circuit
breaker environment and utilizing a bimetallic element.
SEE OR SEARCH CLASS:
219, Electric Heating, subclass 514 for electric heaters
including automatic circuit opening or closing means
comprising thermally responsive means.
236, Automatic Temperature and Humidity Regulation, subclass
96 and especially subclasses 101+ for thermostatic control
systems including expanding solids.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclasses 333+ for thermally controlled switches
employing bimetallic elements.
374, Thermal Measuring and Testing, subclasses 205+ for
expanding solid bimetallic temperature sensing elements.
Subclass:
146
This subclass is indented under subclass 141. Subject matter
wherein the electrothermal current responsive actuating means
consists of a material whose magnetic characteristics vary
with temperature. The magnetic means and thermal current
responsive means may be one and the same or may be separate
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
208 for permanent magnet actuated switches of the
thermomagnetic type.
217 for magnets or electromagnets of the temperature
responsive type.
subclasses 296+ for significant magnetic structure which
may be thermomagnetic.
SEE OR SEARCH CLASS:
252, Compositions, subclass 62.5 for special magnetic
compositions.
310, Electrical Generator or Motor Structure, subclass 306
for thermal or pyromagnetic motor or generator structure.
Subclass:
147
This subclass is indented under subclass 2. Devices in which
the subject matter includes contact actuating means utilizing
the force of repulsion between two circuits when a current is
supplied to one and thereby induces a current in the other
causing a deflection dependent upon the interaction of
magnetic fields produced by the currents, means comprising
plural magnets whose effect, upon energization of one by an
electric current is a repulsion effect or devices in which an
electrodynamic force which is the effect of currents flowing
in opposite directions in two or more branches of a current
carrying conductor is utilized for the opening or closing of
at least one pair of contacts.
SEE OR SEARCH THIS CLASS, SUBCLASS:
16 for automatic circuit breaking devices utilizing the
force of attraction or repulsion between electrical
conductors for the purpose of assisting the opening or
closing of the main contacts.
subclasses 78+ for polarity responsive switch devices which
may utilize magnetic repulsion forces in part.
100 for alternating current operated switches utilizing
induction or eddy currents.
195 for switches in which the main contact pressure is
controlled by magnetic or electrodynamic force.
subclasses 223+ for electrodynamically operated
magnetomotive devices.
SEE OR SEARCH CLASS:
124, Mechanical Guns and Projectors, subclass 3 for devices
whereby a projectile is propelled by electromagnetic impulses
applied thereto during the progress through a barrel.
200, Electricity: Circuit Makers and Breakers, subclass 147,
for devices in which a coil is arranged adjacent the contacts
which generates a magnetic field when a circuit is broken,
which field repels and breaks the arc.
310, Electrical Generator or Motor Structure, subclasses 10+
for dynamoelectric devices utilizing the repulsive forces
between electrical conductors.
318, Electricity: Motive Power Systems, subclasses 725+
for repulsion motors and subclasses 727+ for induction
motors.
324, Electricity: Measuring and Testing, subclass 74 for
the calibration of watt hour meters using induction repulsion
and subclasses 137+ for measuring devices utilizing eddy
currents.
336, Inductor Devices, subclasses 75+ for closed coil
movable with respect to another coil, subclasses 115+ for
various inductor devices with relatively movable coils and
subclasses 130+ for relatively movable core and coil.
361, Electricity: Electrical Systems and Devices subclasses
1+ for safety and protective systems which may include
electrodynamically actuated means.
Subclass:
148
This subclass is indented under subclass 147. Subject matter
wherein the device includes structure by which the mechanical
forces necessary to actuate the movable contact, or contacts,
are developed by the interaction of the field set up in a
moving coil or closed conductive loop and the polarizing
field surrounding it. The fixed magnet is usually of the
permanent type but may be an electromagnet.
(1) Note. The moving coil devices to be found here operate
either on the D'Arsonval or dynamometer principle and the
search to be complete should include Class 324, subclasses
76.11+, especially indented subclasses 144+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
222 for relatively movable coil and permanent magnet.
subclasses 224+ below, for induced current relatively
movable coil devices.
SEE OR SEARCH CLASS:
318, Electricity: Motive Power Systems, subclasses 654+, for
position servomechanisms utilizing synchro transformer
networks, subclass 661, for similar systems using synchro
resolvers, and subclass 692, for self-synchronous motor
controls utilizing "Selsyn" type transmitter-motor systems.
323, Electricity: Power Supply, or Regulation Systems,
subclass 255 and 340 for impedance systems utilizing reactor
devices with relatively movable windings.
336, Inductor Devices, subclasses 75+ and 115+ for inductor
devices with relatively movable coils.
340, Communications: Electrical, subclass 870.31 for
telemetering systems employing inductive transmitters.
Subclass:
149
This subclass is indented under subclass 148. Subject matter
wherein the moving coil conductor structure includes at least
two such coils and in which the relative motion of the
circuit controlling contacts depends upon the position of the
coils relative to each other or the relative motion of the
coils within a flux field.
SEE OR SEARCH CLASS:
336, Inductor Devices, subclasses 115+ for inductor devices
having a plurality of relatively movable coils.
Subclass:
150
This subclass is indented under subclass 148. Subject matter
wherein the structure includes means whereby the contacts may
be restored to an unactuated condition by returning the
contact arm to the zero or neutral setting of the device.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, subclasses 154+
for measuring devices utilizing inductive rotor means with
zero reset.
Subclass:
151
This subclass is indented under subclass 2. Subject matter
and wherein at least the contacts, of an electromagnetic
switch operate in at least a partial vacuum or wherein the
contacts are housed in a space hermetically sealed and
containing a significant gas. The switches found here are
for the most part those commonly referred to as "reed
switches".
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 47+ for conductive liquid switches wherein the
contacting members may be in a sealed enclosure.
subclasses 93+ for vibratory switches with reed type
contacts which may or may not be tuned to a particular
frequency.
235 for polarized electromagnet with vibrating reed or
spring bar type armature.
292 for lifting or attracting type electromagnet of the
hermetically sealed type.
SEE OR SEARCH CLASS:
178, Telegraphy, subclasses 47+ for vibrating reed type
telegraphy apparatus.
200, Electricity: Circuit Makers and Breakers, subclass 152
for liquid contact switches in sealed containers.
Subclass:
152
This subclass is indented under subclass 151. Subject matter
wherein the structure includes at least two or more separate
and distinct devices under the subclass 151 definition. The
devices are usually mounted in a group or cluster all being
under the influence of a single magnetic flux source and may
act cooperatively or individually.
SEE OR SEARCH THIS CLASS, SUBCLASS:
11 for structure of plural switches of the automatic circuit
interrupting type.
subclasses 88+ for plural switches of the periodic or
vibrator type.
subclasses 159+ for subject matter comprehending plural
independently operative switches where the switches are
disclosed as vacuum switches but in which no significant
details of the switches are claimed except in name only.
206 for plural switches of the permanent magnet actuated
type.
SEE OR SEARCH CLASS:
340, Communications: Electrical, subclass 825.79 for matrix
type selective signalling systems utilizing reed switches.
Subclass:
153
This subclass is indented under subclass 151. Subject matter
wherein the structure includes at least one permanent magnet
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 84+ for polarity responsive devices with
significant magnetic structure.
subclasses 91+ for vibratory type with significant magnet
structure.
subclasses 177+ for switch devices utilizing plural
magnets.
subclasses 230+ for electromagnets utilizing permanent
magnets.
302 for significant permanent magnet structure, per se,
applicable to switches or relays.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass
61.62 for closure actuated devices which may utilize reed
switches with particular magnet means.
Subclass:
154
This subclass is indented under subclass 151. Subject matter
wherein the structure includes specific mechanical details of
armature, contact actuating or contact structure which is
significantly peculiar to reed or other sealed switches.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 80+ for polarity responsive switches with
significant armature structure.
83 for polarity responsive switches with significant contact
structure.
subclasses 93+ 95+ and 97+, respectively for vibrator type
switches with significant contact actuating armature or
contact means.
subclasses 185+ for significant contact actuating means not
peculiar to any specific type switch.
subclasses 196+ for significant contact composition or
structure.
SEE OR SEARCH CLASS:
29, Metal Working, subclasses 874+ for processes of
manufacture of electrical contacts and terminals.
65, Glass Manufacturing, subclasses 42+ for processes for
the assembly of reed switch contacts with an envelope.
200, Electricity: Circuit Makers and Breakers, subclass 144
for vacuum switches with arc prevention and subclasses 166+
for contact details.
310, Electrical Generator or Motor Structure, subclass 25
for reciprocating motors of the vibrating reed type.
Subclass:
155
This subclass is indented under subclass 2. Subject matter
wherein the structure includes means whereby the contact
opening or closing operation takes place only at a
predetermined voltage or upon the passage of an operating
current, of a predetermined value or range of values between
predetermined limits, through the control coil or coils of
the device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 18+ for automatic circuit interrupters
responsive to predetermined current direction condition or
value.
20 for automatic circuit interrupters which are voltage
responsive.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 56
for switches combined with indicating instruments.
307, Electrical Transmission or Interconnection Systems,
subclasses 125+ for miscellaneous switching systems which
may be responsive to various electrical conditions.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclasses 14+ for thermal current responsive
switches.
361, Electricity: Electrical Systems and Devices, subclasses
1+ for automatic safety and protection systems, and
subclasses 170+ for relay and electromagnetic switching
circuits responsive to various conditions, including voltage
or current.
Subclass:
156
This subclass is indented under subclass 2. Subject matter
wherein the structure includes at least one means whereby the
device is protected from physical or electrical damage; such
as, burnout, contact burning or pitting, physical breakage or
damage due to jar, overheating, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 157+ for switches with locking or holding
structure to prevent or inhibit unwanted operation of the
contacts from a first condition to a second condition.
193 for significant contact activating means with means for
preventing vibration bounce or chatter.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
166+ for nonmagnetic switches with protective means.
307, Electrical Transmission or Interconnection Systems,
subclasses 134+ for electrical switching systems with
operation facilitating or self-protective features.
Subclass:
157
This subclass is indented under subclass 2. Subject matter
wherein the structure includes positive locking or holding
means whereby the main contacts are inhibited or restrained
from movement by external sources of influence; for instance
against shock or accidental motion. The locking devices to
be found here generally comprise either mechanical or magnet
devices which are either manually or automatically operated
independently of any latching means which may be present; for
example, holding coil means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 21+ for automatic circuit breakers with latching
means.
77 for motor actuated switches with lock, latch or trip.
113 for multiple contact automatic telephone switches with
holding, locking or latching means.
subclasses 167+ especially 168, for latching means with
unwanted contact actuation means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses 6+
for pivoted contact switches with holding coil means and
subclasses 44+ for switches with unauthorized use prevention
devices comprising locks.
307, Electrical Transmission or Interconnection Systems,
subclass 142 for switch actuating means with locking,
holding or breaking means.
361, Electricity: Electrical Systems and Devices, subclass
194 for electric circuits for relays and electromagnets and
including holding means.
Subclass:
158
This subclass is indented under subclass 157. Subject matter
wherein the structure includes significant means whereby the
contacts are retained in an open or unoperated condition.
Subclass:
159
This subclass is indented under subclass 2. Subject matter
wherein the structure comprises all of the essential elements
(as defined in the definition of subclass 2 above, and not
merely by name only) of two or more separate and distinct
switch devices, which may or may not employ common
electromagnetic operating means; and which if detached or
removed from each of the other devices, is capable of opening
or closing an electrical circuit by means within the device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
11 for plural automatic circuit breakers.
52 for plural vacuum or hermetically sealed switches.
subclasses 88+ for plural periodic switches.
206 for plural switches of the permanent magnet actuated
type.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 5
for multiple circuit control means comprising multiple
switches.
307, Electrical Transmission or Interconnection Systems, with
plural supply circuits or sources and having a switch in each
supply source, and subclass 113 for switching systems
comprising plural switches.
361, Electricity: Electrical Systems and Devices, subclasses
1+ for safety and protective systems involving three wire
lines with switch in each line and subclasses 139+ for
electric circuits for plural relays or electromagnets.
Subclass:
160
This subclass is indented under subclass 159. Subject matter
wherein the structure includes means whereby the plural
devices are caused to operate alternately, successively or
selectively, depending upon conditions either in the circuits
which are to be controlled, at the will of an operator, or
according to a predetermined cycle or schedule. This
subclass also contains those patents relating to means
whereby one device is prevented from operating while another
is in operating position as by an interlocking device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
120 for multiple contact switches with plural armatures with
interlocking or mechanical connection.
233 for polarized electromagnet with plural armatures having
armature locking means.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclass 483 for
interlocking linkage systems.
200, Electricity: Circuit Makers and Breakers, subclass 1
for multiple circuit control devices, particularly indented
subclass 5 for plural switches which may be interlocked,
indented subclass 18 for plural switch operating means
mechanically connected, and subclass 50 for plural
interlocked switches.
235, Registers, subclass 431 for data comparing calculators
including plural coordinated switches.
246, Railway Switches and Signals, subclasses 131+ for
interlocking signalling systems with electric switch
actuating means.
361, Electricity: Electrical Systems and Devices, subclasses
191+ for electric circuits for relays and electromagnets
comprising interlocking means.
Subclass:
161
This subclass is indented under subclass 160. Subject matter
wherein the structure includes significant actuating means
which acts cooperatively or through the interlocking means to
control the operation of at least two separate circuit
controlling devices.
Subclass:
162
This subclass is indented under subclass 159. Subject matter
wherein the structure includes means whereby at least one or
more separate devices are housed or supported in common as a
unit or whereby each shares a common magnetic flux path. The
common flux path may be excited by a plurality of windings or
other flux sources. The common support means may consist of
a base only.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202 for significant housing or support structure not
restricted to use with any particular type of switch set out
above in the schedule.
292 for lifting or attracting type electromagnet of the
hermetically sealed type.
294 for lifting or attracting type electromagnets with outer
casing or housing.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 168
for significant details of casing and bases for
nonmagnetically actuated switches in general.
361, Electricity: Electrical Systems and Devices, subclasses
600+ for distribution boards and analogous devices such as
switch boards and housings.
Subclass:
163
This subclass is indented under subclass 159. Subject matter
wherein the structure includes significant means whereby the
plurality of devices are actuated through the medium of a
unitary or common magnetic flux source.
SEE OR SEARCH THIS CLASS, SUBCLASS:
152 for plural vacuum or reed switches which may share a
common flux source.
subclasses 180+ for switches comprising plural windings
utilizing a common magnetic core.
265 for magnetomotive devices comprising plural armatures
actuated by a single electromagnetic coil.
Subclass:
164
This subclass is indented under subclass 2. Subject matter
wherein the subject matter relates to structure comprising a
manual or gravity operated latching means combined with at
least one electromagnetically operated trip means whereby the
latch means is forcibly tripped upon the operation of the
electromagnet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 21+ above, for automatic circuit interrupting
devices with latching or tripping means, especially indented
subclass 27 for automatic combined with manual resetting or
reclosing means.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclasses 2+ for
automatic trip or mechanical latch mechanisms in general.
200, Electricity: Circuit Makers and Breakers, subclass 169
for significant latch structure for nonelectromagnetically
actuated switches.
Subclass:
165
This subclass is indented under subclass 2. Subject matter
wherein the structure includes actuating means for at least
one set of contacts whose operation to open or closed
position is directly dependent upon the operation or position
of a latching or tripping device and in which the latching or
tripping device utilizes mechanical structural elements in
common with a toggle or other contact actuating means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
187 for contacting actuating means unitary with armature.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
39+ for clock train retarded switches with latch trip,
subclasses 70+ and 78 for snap action switches with latch
trip, subclass 318 for mechanical switches comprising
combined latch or trip means with contact operating means and
subclass 169 for latch trip for switches in general.
361, Electricity: Electrical Systems and Devices, subclasses
1+ for miscellaneous circuit breaker systems, comprising
latch or trip structure.
Subclass:
166
This subclass is indented under subclass 2. Subject matter
wherein the structure includes means whereby either the latch
or the latch tripping device may be reset to its operative
condition after having completed the transition to an
unoperative condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 26+ for automatic circuit interrupting devices
with resetting or reclosing means.
150 for moving coil type switch operators with reset or
restoring means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 169
for nonmagnetically operated switch devices with specific
latch details.
361, Electricity: Electrical Systems and Devices, subclasses
71+ for safety protection devices with subsequent automatic
restoration means and subclass 93.4 for abnormal current
condition protection including automatic circuit reset after
interruption of electric system.
Subclass:
167
This subclass is indented under subclass 2. Subject matter
wherein the structure includes specific details of operating
means whereby at least one set of contacts may be restrained
in one of two normal conditions (open or closed). The
latching means usually consists of structure adapted for
mechanically maintaining a contact actuating means, such as a
toggle arrangement, armature or other carrier, in a given
position independently of the magnetic control means so that
once the contacts are closed, or opened, the magnetizing
current may be cut off and the contacts remain in their
opened or closed condition until a tripping action takes
place.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 21+ for automatic circuit interrupting devices
with latch or trip means.
77 for motor actuated switches with latch or trip means.
113 for automatic telephone type multiple contact switches
with latching means.
164 for manual or gravity operated latch with
electromagnetic trip.
165 for contact actuating means unitary with latch or trip.
166 for switches with latch or trip reset means.
subclasses 253+ for electromagnet and armature with
armature latch means.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclasses 2+ for
automatic latch or trip mechanisms and subclasses 527+ for
mechanical latching or detent devices in general.
200, Electricity: Circuit Makers and Breakers, subclass 83
for fluid pressure switches of the diaphragm type with
latching means and subclass 169 for latch details.
361, Electricity: Electrical Systems and Devices, subclasses
139+ for electric circuits for relays and electromagnets
with latch mechanisms.
Subclass:
168
This subclass is indented under subclass 167. Subject matter
wherein the structure includes means whereby the latching
mechanism is positively locked or prevented from actuation
from a first condition to a second condition while the
locking means is operative.
SEE OR SEARCH THIS CLASS, SUBCLASS:
34 for automatic circuit interrupter with lockout.
77 for motor actuated switch with locking means.
113 for multiple contact automatic telephone type switches
with holding or locking means.
157 for significant locking structure peculiarly adapted for
preventing the operation of the main contacts inadvertently
be external means.
233 for polarized electromagnet and plural armatures with
locking means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
44+ for switches with locking means to prevent unauthorized
use.
307, Electrical Transmission or Interconnection Systems,
subclass 142 for electromagnetic switch actuators with
locking, holding or braking means.
361, Electricity: Electrical Systems and Devices, subclasses
78+ for safety and protective devices with voltage
responsive restraining means.
Subclass:
169
This subclass is indented under subclass 167. Subject matter
wherein the latch structure comprises at least two separate
cooperative latching devices each under the influence of a
separate actuating means. One of the latching devices may
constitute the principle latch while at least one other
constitutes an auxiliary latch whose function is to restrain
the principle latch.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 22+ for automatic circuit interrupting devices
which include plural latch means or plural operating means
for a single latch.
Subclass:
170
This subclass is indented under subclass 167. Subject matter
wherein the latching structure includes independent magnetic
means; such as a holding coil and armature, for instance,
whereby the latch is operated into, or held in holding
relationship with contact actuating means. Also included in
this subclass are devices where no mechanical latch is used
and which depend entirely upon magnetic means for directly
holding the contact arm or arms in closed position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 21+ especially subclasses 38+ for automatic
circuit interrupting devices including magnetically
controlled latching means.
254 for electromagnet and armature with armature latch
control winding.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 169
for magnetically controlled latches in general.
290, Prime-Mover Dynamo Plants, subclasses 7+, especially
subclasses 37 and 38, for electric control apparatus for
electric engine starting motors which may include
electromagnetic switches with magnetic latching means.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 71 for electrothermally actuated switches
with plural latch or latch release means one of which may be
magnetic.
361, Electricity: Electrical Systems and Devices, subclasses
67+ for safety and protection devices which may include
magnetic latching means.
Subclass:
171
This subclass is indented under subclass 167. Subject matter
wherein the latching structure includes spring or other
energy storing means whereby the latch is biased to either
operative or inoperative condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 15+ for automatic circuit interrupting devices
including contact biasing means which may be a component of
the latching means.
192 for contact actuating structure with biasing means to
either the open or closed position.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 170
for significant contact pressure adjustment means which may
comprise spring means.
Subclass:
172
This subclass is indented under subclass 2. Subject matter
wherein the structure includes significant details of at
least one means whereby a latch is released or tripped from a
first operative condition to a second nonoperative
condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 21+ for automatic circuit interrupting devices
with significant trip structure.
77 for motor actuated switches with trip structure.
165 for unitary contact actuating and latch or trip means.
166 for switch with latch or trip reset means.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclasses 2+ for
mechanical trip structure, per se.
200, Electricity: Circuit Makers and Breakers, subclasses
39+ for retarded switch structure including trip means,
subclasses 411+; 415+ for double snap switches with trip
means, subclass 470; 471 for single snap switches with trip
means, and subclasses 424+ for reciprocating snap switches
with trip means.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclasses 47+, 70+, 128+, 150+, and 174+ for
electrothermally actuated switches which include trip
releases and subclasses 356+ and 411 for thermally actuated
switches including trip releases.
361, Electricity: Electrical Systems and Devices, subclasses
115+ for specific circuit breaker or relay structure which
may include tripping means.
Subclass:
173
This subclass is indented under subclass 172. Subject matter
wherein the tripping structure includes significant details
of at least two or more separate and distinct tripping means
of diverse type; as for example, manual and magnetic, each of
which is operative independently of the other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 35+ above, for automatic circuit interrupting
devices with plural or combined trip structure.
Subclass:
174
This subclass is indented under subclass 172. Subject matter
wherein the tripping means includes significant magnetic
structure whereby the tripping means is actuated. The
magnetic flux for operating the trip device may be derived
from the main magnetic circuit or from an independent
magnetic source.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 38+ for automatic circuit interrupting devices
with significant magnetic trip structure.
164 for manually or gravity operated latch with
electromagnetic trip.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclass
102 for safety and protective devices, comprising breakers
operative by the removal of tripping coil shunt means.
Subclass:
175
This subclass is indented under subclass 174. Subject matter
wherein the magnetic trip actuating structure includes impact
means whereby the latch is tripped by the delivery of a sharp
hammer blow to some part thereof. The impact means usually
consists of a reciprocating member (armature) actuated by a
coil but may be an inertia means released by action of an
armature.
Subclass:
176
This subclass is indented under subclass 174. Subject matter
wherein the claimed trip structure includes adjusting or
regulating means whereby some operative characteristic of the
tripping device, such as the current value required for
actuation, may be predetermined or automatically adjusted or
regulated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
42 above, for automatic circuit interrupting devices with
adjustable or regulatable magnetic tripping means, subclass
45 for similar thermal tripping means with regulating means
and subclasses 258 and 273 for electromagnets and armatures
with adjusting means.
Subclass:
177
This subclass is indented under subclass 2. Subject matter
wherein the structure includes at least two or more magnetic
flux sources adapted to cooperate in the operation of the
same main circuit control contacts. Generally one magnet
operates to close the circuit and the other operates to open
the circuit or several magnets may operate simultaneously on
an armature system. One or more of the magnets may be a
permanent magnet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 8+ for multipole or polyphase circuit
interrupting devices with plural flux sources.
11 for plural automatic circuit interrupters each with
magnet.
92 for periodic type switches with plural magnets.
102 and 103, for alternating current actuated switches with
plural magnets.
136 for multiple contact type with plural magnet or coil
means.
subclasses 159+ for plural independently operated
switches.
206 for plural switches of the permanent magnet operated
type.
207 for switches utilizing plural permanent magnets.
subclasses 223+ for magnetomotive device of the relatively
movable conductor type (e.g., dynamometer type).
246 for alternating current electromagnets with plural
windings.
subclasses 266+ for other electromagnets with plural
coils.
SEE OR SEARCH CLASS:
178, Telegraphy, subclasses 74+ for telegraph circuits with
electromagnetic switching means utilizing plural magnets.
246, Railway Switches and Signals, subclasses 218+
(especially subclasses 227 and 231+) for electrically
actuated railway signal devices utilizing plural magnets.
361, Electricity: Electrical Systems and Devices, subclasses
160+ for electric circuits for relays and electromagnets
with plural coils.
Subclass:
178
This subclass is indented under subclass 177. Subject matter
wherein the magnets are specifically described as having
diverse electrical characteristics, for example one may be
voltage responsive while another is current responsive. Also
included here are systems in which one magnet winding is
described as in series with a source of current while another
is shunt connected.
SEE OR SEARCH THIS CLASS, SUBCLASS:
137 above, for multiple contact type switching devices
utilizing plural diverse type magnets or flux sources of
diverse types.
Subclass:
179
This subclass is indented under subclass 177. Subject matter
wherein the magnets are specifically described as having
diverse magnetic characteristics. For example, one or more
may be a permanent magnet while another may be an
electromagnet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 78+ for polarized switches utilizing a plurality
of magnetic means consisting of electromagnet plus permanent
magnet.
153 for vacuum or hermetically sealed type switches with
electromagnet and permanent magnet structure.
222 for magnetomotive device with relatively movable coil
and permanent magnet.
subclasses 229+ below, for electromagnets with armature
including permanent magnet devices.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclass
208 for electric circuits for electromagnets and relays
employing polarized relay means utilizing electromagnets plus
at least one permanent magnet.
Subclass:
180
This subclass is indented under subclass 177. Subject matter
wherein the structure includes a single core or armature
common to at least two of the magnet means. The armature
structure may comprise a single plunger reciprocally related
to a plurality of coils or may be of the hinged or pivoted
type actuated by the coils in common.
SEE OR SEARCH THIS CLASS, SUBCLASS:
92 for periodic switches employing a common armature,
usually pivoted for alternate attraction and repulsion in two
directions.
163 for plural switches with common magnet flux source.
256 for plural coil actuated plunger armature.
266 for electromagnetic devices employing plural coils
controlling a single armature.
Subclass:
181
This subclass is indented under subclass 180. Subject matter
wherein the single armature is specifically a pivoted
armature.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 68+ for rotary motor actuated switches.
125 for multiple contact switches with rotary armature.
subclasses 128+ for simultaneously actuated multiple
contact switch with pivoted armature.
266 for electromagnets consisting of plural coils actuating
a single pivoted armature.
272 for electromagnet with rotating disk or cylindrical
armature.
275 for electromagnet with armature having a hinge joint.
276 for electromagnet with armature having a pivot support.
SEE OR SEARCH CLASS:
178, Telegraphy, subclass 16 for telegraph systems employing
plural windings and a single armature for current reversing.
Subclass:
182
This subclass is indented under subclass 180. Subject matter
wherein the plurality of magnetic coils or other flux sources
are wound upon a common core in such a manner or otherwise
arranged so that their magnetic flux fields are opposing and
whereby the armature or armatures are acted upon by a
resultant flux field which may be zero or the difference
between two or more fields. The devices classified here are
of the type commonly known as differential type. The two or
more windings are so connected that when energized together
their magnetic effects neutralize each other and no effective
flux is produced.
SEE OR SEARCH CLASS:
246, Railway Switches and Signals, subclasses 227+ for
railroad signaling switches with opposed magnets and
subclasses 231+ for reciprocating actuators with opposed
magnets.
340, Communications: Electrical, subclass 870.31, especially
subclasses 870.35+, for inductor transmitters which may
employ differentially wound coils with magnetic fields
opposing.
361, Electricity: Electrical Systems and Devices, subclasses
160+ for electric circuits for relays and electromagnets
which may utilize differentially wound coils.
Subclass:
183
This subclass is indented under subclass 177. Subject matter
wherein the torque generated by at least two magnetic flux
sources act in opposition to each other or in opposite
directions. The plurality of flux sources may be energized
simultaneously or alternately whereby a contact actuating
means may be operated first toward one position and then
toward a second position as from open to closed and vice
versa.
SEE OR SEARCH THIS CLASS, SUBCLASS:
266 for electromagnetic relays comprising plural coils
adapted to be separately or selectively energized.
Subclass:
184
This subclass is indented under subclass 177. Subject matter
wherein at least two or more magnetic coils are provided with
reciprocating core armatures which operate in alignment along
a common axis and which may or may not be rigidly
mechanically connected.
SEE OR SEARCH THIS CLASS, SUBCLASS:
259 for magneto-mechanical devices utilizing plural plunger
type armatures.
267 for magneto-mechanical devices employing both plural
coils and plural armatures.
Subclass:
185
This subclass is indented under subclass 2. Subject matter
wherein the significant structure comprises apparatus in
addition to, but actuated by, an armature or armatures
whereby at least one movable contact is caused to be actuated
from a first position to a second position in relation to a
fixed contact resulting in an electrical circuit being
completed or broken.
(1) Note. For devices in which the movable contact is
pivotably connected upon or relatively movably attached to
the armature the search is in subclass 200.
(2) Note. When the specific contact actuating structure is
shown or disclosed in a device falling in a specific type
classifiable elsewhere in the class, and the claims do not
recite elements of the more comprehensive structure; search
must be extended to the more specific subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 71+ for motor operated switches with contact
actuating structure.
subclasses 93+ for periodic switches with vibratory reed or
other periodic contact actuator.
subclasses 121+ for multiple contact switches with
significant contact actuating means.
154 for vacuum or hermetically sealed type switches with
particular contact actuating means.
Subclass:
186
This subclass is indented under subclass 185. Subject matter
wherein the significant contact actuating means includes at
least one manual means such as a push button or operating
lever, whereby the movable contact or contacts are actuated
from a first to a second position. The electromagnetic means
may act to maintain the contacts closed after actuation by
the manual means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
72 for motor actuated switches with particular plural
contact actuating means.
subclasses 121+ for multiple contact type switches with
significant contact actuating means.
140 for step-by-step type with significant multiple contact
actuating means.
164 for switches having manual contact operating means with
latch or electromagnetic trip means.
238 for electromagnet with armature with auxiliary armature
movement control means (e.g., manual).
Subclass:
187
This subclass is indented under subclass 185. Subject matter
wherein at least one significant contact actuating means is
structurally combined with armature in such a manner as to
form a physical entity therewith and in which both are
claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
165 for contact actuating means unitary with latch or trip.
200 for devices including significant armature structure
having at least one movable contact pivoted thereon and
adapted to be relatively movable thereto.
Subclass:
188
This subclass is indented under subclass 185. Subject matter
wherein the significant actuating structure includes means
whereby the contact motion is caused to take place abruptly
and is not dependent on the rate of movement of the armature.
The contact movement is usually accomplished by a spring
connection between the operator and the contact in such a
manner that the initial movement of the armature or other
actuating means places the spring under tension until
released whereupon the movable contact is snapped to open or
closed position by the energy stored in the spring.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclass 97 and 100 for
mechanical snap actions.
200, Electricity: Circuit Makers and Breakers, appropriate
subclass 405 under "SNAP" for various snap actions for
nonmagnetically operated switch devices.
361, Electricity: Electrical Systems and Devices, subclasses
157+ for electric circuits for relays or electromagnets
which may be of the snap switch type.
Subclass:
189
This subclass is indented under subclass 185. Subject matter
wherein the significant contact actuating structure comprises
mechanical linkage operative between an armature and at least
one movable contact whereby motion of the armature is
transmitted to the movable contact.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 110+ for multiple contact automatic telephone
type switches with multidirectional motion converting means.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclasses 469+ for
mechanical linkage systems, per se.
200, Electricity: Circuit Makers and Breakers, subclass 17
for multiple circuit control devices with significant
operating means and subclasses 502+ for miscellaneous switch
actuating mechanism details.
307, Electrical Transmission or Interconnection Systems,
subclasses 139+ for switching systems utilizing significant
switch actuating means.
361, Electricity: Electrical Systems and Devices, subclasses
115+ for specific circuit breaker or relay structure.
Subclass:
190
This subclass is indented under subclass 189. Subject matter
wherein the mechanical linkage comprises at least one cam,
roller or eccentric device whereby the force applied to open
or close a movable contact may be varied during the opening
or closing operation, or the armature may be held in a
predetermined position upon actuation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
73 above, for motor driven switches employing eccentric or
cam means.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, appropriate subclasses,
especially subclass 9, 10.29+, 10.6, 53, 54, 55+, 567+, 570+,
835, and 838+ for mechanical elements including cams and/or
eccentric devices.
200, Electricity: Circuit Makers and Breakers, subclass
19.03, 19.13+ and 19.20+, for periodic switches, subclass 38
for clock train retarded and subclasses 431 for snap action
switches, all utilizing cams.
Subclass:
191
This subclass is indented under subclass 189. Subject matter
wherein the mechanical linkage comprises structure whereby
the force applied to a moving contact is the result of a
motion in a first direction converted to a motion in a second
direction; for example, a linear first motion may be
converted to a rotary motion about a fixed origin or pivot as
by a toggle linkage.
SEE OR SEARCH THIS CLASS, SUBCLASS:
110 for automatically controlled multiple contact automatic
telephone type switching devices utilizing motion conversion
means.
subclasses 122+ for multiple contact switches with compound
motion contact actuator.
140 for step-by-step switch with ratchet and pawl type
actuator.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclasses 520+ for
mechanical toggle elements, per se.
200, Electricity: Circuit Makers and Breakers.
Subclass:
192
This subclass is indented under subclass 185. Subject matter
wherein the significant contact actuating structure includes
spring biasing means whereby the movable contact or contacts
are positively biased toward one of two positions
independently of the armature means. The biasing may be
toward either the open or closed position and is operative to
assist an armature or other actuating means in the opening or
closing operation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 15+ for automatic circuit interrupting devices
including biasing or pressure control means.
subclasses 157+ for switches with operation inhibiting
means.
193 for contact bounce, chatter or vibration preventing
means.
subclasses 194+ for contact pressure maintaining or
adjusting means.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 142 for miscellaneous switches with locking,
holding or breaking means.
361, Electricity: Electrical Systems and Devices, subclass
194 for relay systems having relays with contact holding or
locking means.
Subclass:
193
This subclass is indented under subclass 185. Subject matter
wherein the contact actuating structure includes means
whereby the contacts are prevented from vibrating, rebounding
or chattering when in the closed position or during the
closing operation. The apparatus generally comprises
compression means, inertia weights or other similar structure
for absorbing the kinetic energy of the moving parts.
SEE OR SEARCH THIS CLASS, SUBCLASS:
46 for automatic circuits interrupting devices with rebound
prevention means.
104 for alternating current actuated switches with chatter,
bounce or vibration prevention means.
subclasses 247+ for alternating current type switches with
chatter or noise preventing means.
271 for electromagnet and armature with armature bounce or
vibration preventing means.
Subclass:
194
This subclass is indented under subclass 185. Subject matter
wherein the contact actuating structure includes additional
means whereby a predetermined or constant pressure is applied
to the contacts while in the circuit closing position or
whereby such contact pressure may be adjusted.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 15+ above, for automatic circuit interrupting
devices with pressure control means.
192 above, for devices having spring biasing means for
assisting in the opening or closing of the contacts.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 8
for switches in which contact pressure between fixed and
movable contacts is exerted in a line radial to the arc of
movement of a pivoted contact and subclass 170 for contact
pressure adjustment means generally.
361, Electricity: Electrical Systems and Devices, subclasses
157+ for electric circuits for relays and electromagnets
including contact pressure increasing means.
Subclass:
195
This subclass is indented under subclass 194. Subject matter
wherein the pressure maintaining or adjusting means comprises
magnetic means or structure whereby an electrodynamic force
established between two current carrying conductors is
utilized to establish a pressure tending to maintain the
contacts closed.
(1) Note. For devices wherein an electrodynamic force is
utilized to actuate or to assist in the opening or closing of
circuit closing contacts see subclass 147.
SEE OR SEARCH THIS CLASS, SUBCLASS:
16 for automatic circuit interrupting devices with magnetic
blowon or blowoff; i.e., magnetic biasing.
Subclass:
196
This subclass is indented under subclass 2. Subject matter
wherein the structure includes significant details of the
composition of matter or mechanical structure of the contact
assembly, its support on or attachment to the magnetic
device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 57+ for liquid contact switches.
83 for polarity responsive switches with particular contact
structure.
subclasses 97+ for periodic switches with particular
contact structure.
subclasses 133+ for particular contact structure or
arrangement in a multiple contact switch.
154 for vacuum switches with particular contact structure.
SEE OR SEARCH CLASS:
29, Metal Working, subclasses 874+ for process of
manufacture of electrical contacts.
178, Telegraphy, subclasses 79+ for telegraph transmitters
with particular contacts and subclasses 101+ for telegraph
keys with significant contact means.
200, Electricity: Circuit Makers and Breakers, subclass 166
for contact structural details.
252, Compositions, subclasses 500+ for electricity
conductive compositions.
Subclass:
197
This subclass is indented under subclass 196. Subject matter
wherein the contact structure comprises significant means
whereby the contact or contacts are readily detachable or
adjustable relative to the magnetic structure, the armature
or each contact relative to the other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
98 above, for periodic switches with adjustable contacts.
Subclass:
198
This subclass is indented under subclass 197. Subject matter
wherein the subject matter relates to means whereby the
device may be adapted to operate as a normally open or closed
contact switch.
SEE OR SEARCH THIS CLASS, SUBCLASS:
105 for alternating of fluctuating current type switches
which are adjustable.
Subclass:
199
This subclass is indented under subclass 196. Subject matter
wherein the contact structure, or at least a part thereof, is
of the preformed surface type, which is usually formed by
depositing a metallic conducting material upon an insulating
surface, by etching away part of a metal coated insulating
surface, or by printing on a conductive layer, etc.
SEE OR SEARCH CLASS:
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
appropriate subclasses for making preformed circuits by
surface bonding or especially subclasses 2+ for making a
conductor attached to a sheet-like body for an etching
operation.
174, Electricity: Conductors and Insulators, subclasses 250+
for other printed circuits.
204, Chemistry: Electrical and Wave Energy, appropriate
subclasses for processes for electrochemically producing
preformed articles or circuit structure, such as switches,
contacts, etc.
361, Electricity: Electrical Systems and Devices, subclasses
748+ for structure of impedances and circuit components of
the printed circuit type and subclasses 823+ for switch
boards and analogous devices with printed terminals.
427, Coating Processes, subclasses 58+ for processes of
coating, per se, wherein the product has utility as an
electrical product.
439, Electrical Connectors, subclass 17 for preformed panels
with printed circuitry which include detachable connectors.
Subclass:
200
This subclass is indented under subclass 196. Subject matter
wherein the structure includes at least one movable contact
device which is pivotally or otherwise attached to an
armature in such a manner as to be movable relative thereto
and independently thereof. The connection usually consists
of a spring biased pivotal means but may comprise any lost
motion connection providing for relative movement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 189+ for significant contact actuating means
comprising mechanical linkage between the armature and at
least one fixed contact.
SEE OR SEARCH CLASS:
178, Telegraphy, subclass 106 for telegraph keys with
shifting contact point.
Subclass:
201
This subclass is indented under subclass 2. Subject matter
wherein the significant structural details include means for
preventing the formation of electric arcs when a circuit is
broken or smothering an arc once it forms. The circuit may
be broken at a plurality of points as by the provision of
auxiliary arcing contacts shunting the main contacts or by
means of a magnetic coil arranged adjacent the contacts
wherein a magnetic field is generated which tends to repel
and extinguish the arc.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 10
for nonmagnetically actuated switches with arc preventing or
extinguishing means.
218, High-Voltage Switches With Arc Preventing and
Extinguishing Devices, subclasses 1+ for nonmagnetically
actuated switches with arc preventing or extinguishing
means.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 110 and 273+ for electrothermally
actuated switches with arc prevention means.
361, Electricity: Electrical Systems and Devices, subclasses
2+ for safety and protection devices with arc suppression
means and subclasses 117+ for high voltage dissipators, per
se, especially subclasses 133+ for magnetic means.
Subclass:
202
This subclass is indented under subclass 2. Subject matter
wherein the significant structural details include means for
housing, enclosing or supporting an electromagnetic switch
device. The housing or support means may include magnetic or
electric shielding means or other details of construction
whereby the casing or support contributes to the operation of
the switch. One example of the devices to be found here are
the so-called "lamp socket" switches.
SEE OR SEARCH THIS CLASS, SUBCLASS:
162 for plural switches with unitary housing or support
means.
278 for magneto-mechanical motive device with casing or
enclosure.
292 for hermetically sealed work or lifting electromagnet.
294 for outer casing or housing for work or lifting type
electromagnet.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclasses 17+
for fluid filled or evacuated type housings, or boxes for
electrical devices, subclasses 32+ for anti-inductive
structures and subclasses 50+ for boxes and housings for
electrical devices in general.
200, Electricity: Circuit Makers and Breakers, subclasses
51+ for switches combined with electrical connectors and
subclass 168 for casing and bases for switches in general.
220, Receptacles, subclass 3.2 for outlet or junction box
type receptacles which may house electric switches.
361, Electricity: Electrical Systems and Devices, subclasses
600+ for switchboards or the structural combination
miscellaneous electrical components, housing structure in
general, and particularly subclasses 627+ for switches that
may include housings.
362, Illumination, subclass 394 for light sockets with
special switch operators.
Subclass:
203
This subclass is indented under subclass 2. Subject matter
wherein the structure includes significant details of
armature structure or composition of matter with other switch
structure in conventional language, as by name only, but
which is sufficient to restrict the device to this class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 55+ for liquid contact switches with significant
armature structure.
subclasses 80+ for polarity responsive switches with
significant armature structure.
subclasses 95+ for periodic switches at significant
armature structure.
subclasses 124+ for multiple contact type with significant
armature.
154 for vacuum or reed switches with significant armature.
subclasses 180+ for switches utilizing plural magnetic
sources with a single armature.
subclasses 232+ for polarized electromagnet with plural
armatures.
235 for polarized electromagnet with vibrating reed or
spring bar type armature.
249 for alternating current electromagnet with chatter
prevent armature construction.
255 for electromagnets having plunger type armatures.
267 for electromagnets with plural armatures.
270 for electromagnets with special armature mounting
means.
279 for electromagnets with armatures of particular shape,
structure or material.
SEE OR SEARCH CLASS:
336, Inductor Devices, subclass 77, 117+ and 130+ for
inductors with relatively movable core and coil structure.
Subclass:
204
This subclass is indented under subclass 2. Subject matter
wherein at least a portion of the magnetic actuating
structure of the switch device, usually the flux source or
winding, consists of a portion of a bus bar or other
conductor which comprises an integral part of the external
circuit which is to be controlled. For example; the switch
device may be directly attached to a bus bar in such a manner
as to utilize the magnetic flux field surrounding the bus bar
upon the passage of current therethrough to control an
armature or other contact actuating means.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, subclass 127 for
electricity measuring devices employing a split core
transformer surrounding a line conductor.
336, Inductor Devices, subclass 174 for inductor coil
surrounding a linear conductor and subclasses 175+ for
induction devices consisting of a core surrounding a linear
conductor.
340, Communications: Electrical, subclasses 650+ for
electrical condition responsive apparatus for electric line
fault indicators means attached to a through conductor.
Subclass:
205
This subclass is indented under the class definition. Subject
matter wherein the structure includes switch means whereby
the actuation of the main contacts from an operative to an
inoperative position or vice versa is entirely accomplished
by means of permanent magnets.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 84+ for magnetic structure of polarity
responsive switches.
137 for multiple contact switches with plural diverse
magnets (e.g., electromagnet and permanent magnet).
153 for vacuum or hermetically sealed type switches with
permanent magnet.
179 for switches utilizing electromagnet and permanent
magnet.
222 for relatively movable coil and permanent magnet.
subclasses 229+ below, for magneto-mechanical devices
utilizing permanent magnets.
subclasses 302+ for permanent magnet structure, per se.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclasses
52+ for special application switches which may utilize
permanent magnets, and other indented subclasses such as
61.41 for switches in special environment utilizing permanent
magnets, subclass 80 for centrifugal switches, with permanent
magnets, subclass 81.8 for fluid pressure actuated switches
with permanent magnets, subclass 84 for float type switches
utilizing permanent magnets, and subclass 404 for mechanical
switches with permanent magnets.
310, Electrical Generator or Motor Structure, subclasses 103+
for magnetic field type torque transmitting clutches or
brakes.
336, Inductor Devices, subclass 110 for inductor devices
with permanent magnets.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 2, for electrothermal or thermal actuated
switches combined with other art switches which may be
permanent magnet actuated, subclasses 54, 90, 134, and 344
for particular type thermal switches utilizing permanent
magnets.
338, Electrical Resistors, subclass 12 for devices wherein a
resistance is variably actuated by a movable magnet, and
subclass 32 for Hall effect type resistors.
340, Communications: Electrical, subclass 825.79 for
matrices utilizing permanent magnets
361, Electricity: Electrical Systems and Devices, subclass
208 for circuits utilizing polarized relays.
365, Static Information Storage and Retrieval, appropriate
subclass for magnetic storage systems particularly subclass
62 and 98 which may include permanent magnets.
439, Electrical Connectors, subclass 12 for connectors with
magnet or suction cup.
Subclass:
206
This subclass is indented under subclass 205. Subject matter
wherein the claimed structure comprises all the essential
elements of two or more separate and distinct switch devices
which may or may not employ common permanent magnet operation
means and which if detached or removed from each of the other
devices is capable of opening or closing an electrical
circuit by means within the device.
(1) Note. Consult the search notes under subclass 159.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 232+ for polarized electromagnet with plural
armatures.
306 for plural permanent magnets, per se.
Subclass:
207
This subclass is indented under subclass 205. Subject matter
wherein the permanent magnet means comprises a plurality of
at least two or more such magnets.
(1) Note. To complete the search for this subject matter
consult the search notes under subclasses 177+ above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 229+ for electromagnet and armature which may be
combined with plural permanent magnets.
306 for the structure of plural permanent magnets, per se.
SEE OR SEARCH CLASS:
246, Railway Switches and Signals, subclass 249 for car
actuated circuit controllers utilizing plural permanent
magnets.
Subclass:
208
This subclass is indented under subclass 205. Subject matter
wherein the magnetic structure is specifically recited as
consisting of material whose magnetic properties are
responsive to temperature conditions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
146 for switch including thermomagnetic actuating means.
subclasses 217+ for temperatures responsive magnets or
electromagnets.
Subclass:
209
This subclass is indented under the class definition. Subject
matter comprising magnets, which may be permanent magnets,
electromagnets or a combination of the two types, or
electromagnets with armatures, designed or arranged to
perform external mechanical work.
(1) Note. Coils, or coils with core whose proximate and
sole purpose is to introduce inductance in an electrical
circuit and which are not designed to perform external work
are classified in Class 336, Inductor Devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
1 through 208, for magnets or electromagnets used in
magnetically operated switches.
SEE OR SEARCH CLASS:
29, Metal Working, subclass 602.1 for methods of
manufacturing transformers and inductances, and residual
methods of manufacturing magnets and electromagnets which do
not fall into Classes 148, 252 or 361. For the lines between
these classes see the extensive notes to Class 29, subclass
602.1 and Class 148, Metal Treatment, subclass 100.
148, Metal Treatment, subclasses 100-122 for processes of
improving the magnetic properties of material having at least
one component which is a free metal or alloy, other than by
mere magnetization, and subclasses 31.55 and 31.57 for stock
resulting from such processes.
198, Conveyors: Power-Driven, subclass 381, 439 and 619 for
magnetic type conveyors.
209, Classifying, Separating and Assorting Solids, subclass
38, 39, 40, 212, 213+, and 478 for magnetic sorting or
separation of solids.
210, Liquid Purification or Separation, subclasses 222+ for
such subject matter having magnetic means to effect the
purification or separation.
221, Article Dispensing, appropriate subclasses and see
especially subclass 212 for magnetic article holding
discharge assistants and the controls therefor.
242, Winding, Tensioning, or Guiding, subclasses 430+ for a
process or apparatus for forming an article (e.g., a motor
core, inductor, capacitor, or resistor) by winding material
onto a core.
250, Radiant Energy, subclasses 281+ for ionic separation
or analysis methods and apparatus which use magnets or
electromagnets.
252, Compositions, subclass 62.51 for processes of making
magnetic compositions, and the resulting product when it is
claimed as stock or bulk material.
324, Electricity: Measuring and Testing, subclass 200 for
magnetic testing devices utilizing magnets and electromagnets
or inductors, and subclasses 76.11+ for electric meters
utilizing magnets and electromagnets.
336, Inductor Devices, appropriate subclasses for the
structure of transformers and inductive reactors of general
utility. See (1) Note above.
600, Surgery, subclasses 9+ for electromagnets utilized in
surgery and diagnostics.
Subclass:
210
This subclass is indented under subclass 209. Subject matter
relating to electronic or ionic beam deflecting magnets.
(1) Note. The electromagnets and permanent magnets in this
and the indented subclasses are adapted for use with electron
or ion beam deflecting devices of Classes 250, Radiant Energy
and 313, Electric Lamp and Discharge Devices. The
electromagnet, for example, may be a beam sweeping magnet and
the permanent magnet may be a positive ion deflecting
magnet.
(2) Note. This subclass and indented subclasses, provide
for the permanent magnet or electromagnet, per se, adapted
for use with electron beam tubes but does not provide for the
beam deflecting magnet in combination with significant
details of the electron beam tube or the control circuit for
the magnets or the electron beam tube. For such combinations,
see the search notes below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
201 for electromagnetically actuated switches with arc
suppression or extinguishing means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 10
for multiple circuit pivoted contact switches.
218, High-Voltage Switches With Arc Preventing and
Extinguishing Devices, subclasses 1+ for switches in
general with arc preventing and extinguishing magnets.
250, Radiant Energy, subclasses 281+ for ionic separation
or analysis methods or apparatus which use magnets or
electromagnets and subclasses 396+ for electron or ion beam
deflection or focussing systems which use magnets or
electromagnets.
313, Electric Lamp and Discharge Devices, subclasses 153+
and 364+, in particular 421+ for space discharge devices
having electronic and ionic beam deflecting means.
315, Electric Lamp and Discharge Devices: Systems, subclasses
364+ for cathode ray tube systems having beam deflecting
means.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 281 for fusible element type switches
with magnetic blowout means.
361, Electricity: Electrical Systems and Devices, subclasses
134+ for lightning arresters having arc blowout magnets.
Subclass:
211
This subclass is indented under subclass 210. Subject matter
wherein the electronic or ionic beam deflecting magnet
includes a magnetic shunt path for the magnetic flux produced
by the deflecting magnet. The shunt magnetic path is an
auxiliary magnetic path in addition to the main magnetic
path.
(1) Note. The magnetic shunt path may or may not be
adjustable to vary the degree of magnetic shunt.
SEE OR SEARCH THIS CLASS, SUBCLASS:
236 for magnets or electromagnets including a magnetic shunt
path.
Subclass:
212
This subclass is indented under subclass 210. Subject matter
wherein the magnetic elements of the electronic or ionic beam
deflecting magnets are adjustable with respect to each other
and/or with respect to the tube to vary the position of the
electronic or ionic beam.
SEE OR SEARCH THIS CLASS, SUBCLASS:
237 for electromagnets with adjustable shunt means.
273 for electromagnets with armature adjusting means.
Subclass:
213
This subclass is indented under subclass 210. Subject matter
including significant structural details of a coil of the
magnetic deflecting means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
282 for electromagnet with armature having particular coil
shape, structure or material.
subclasses 299+ for electromagnet coil structure or
material in general.
SEE OR SEARCH CLASS:
315, Electric Lamp and Discharge Devices: Systems, subclasses
399+ for cathode- ray tube systems, subclasses 368.25+ for
mechanical structure of a coil in a color covergence circuit;
and in general with electromagnetically controlled sweeping
of the cathode ray.
Subclass:
214
This subclass is indented under subclass 213. Subject matter
including electric or magnetic shielding means in combination
with the coil structure for shielding at least part of the
beam deflecting means from external electric or magnetic
fields, or for preventing the coil of the deflecting means
from emanating undesired electric or magnetic fields.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202 for electromagnetic switch with electric or magnetic
shielding means.
301 for shielding means in combination with magnets or
electromagnetic relays not particularly related to electron
or ionic beam deflection.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 35
for shields or screens, per se, of general utility.
336, Inductor Devices, subclass 84 for inductor devices
provided with shield means.
Subclass:
215
This subclass is indented under subclass 209. Subject matter
wherein a portion of the magnet or electromagnet includes
material having magnetostriction properties.
(1) Note. Magnetostriction is the property, exhibited by
some materials, by which their dimensions change when placed
in a magnetic field.
SEE OR SEARCH THIS CLASS, SUBCLASS:
3 above for electromagnetically actuated switches with
magnetostrictive elements.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclass 26
for dynamoelectric devices with magnetostrictive material.
318, Electricity: Motive Power System, subclass 118 for
magnetostrictive electric motor system.
336, Inductor Devices, subclass 20 for inductor devices with
deformable cores of magnetostrictive material.
361, Electricity: Electrical Systems and Devices, subclasses
206+ for electric circuit for magnetostrictive relay or
electromagnet.
367, Communications, Electrical: Acoustic Wave Systems and
Devices, subclass 168 for this subject matter utilized in
underwater transducers such as used, for example, in sonar
systems.
Subclass:
216
This subclass is indented under subclass 209. Subject matter
wherein the magnet or electromagnet has a superconductive
element included therein as an active element of the magnet.
(1) Note. Superconductivity is the property exhibited by
some metals, alloys and compounds wherein the reduction of
the temperature of the material to within a few degrees of
absolute zero causes a steady fall in the resistance of the
material until a critical temperature (transition
temperature) is reached, and then the resistance falls
suddenly to zero or practically to zero.
(2) Note. This subclass provides for magnets or
electromagnets with superconductors included therein as an
active portion of the magnet or electromagnet, but does not
provide for superconductors, per se. Superconductors are
found in various classes, depending upon the type of device
which the superconductor is used. See the search notes below
for other superconductors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
217 for temperature responsive type magnets or
electromagnets that do not involve super-conductivity.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 15.4
and 125.1 for superconductor structure.
336, Inductor Devices, subclass 155 for super-conductive
inductive devices with no relatively moving parts.
361, Electricity: Electrical Systems and Devices, subclasses
139+ for electric circuits for electromagnets including
super-conductors.
Subclass:
217
This subclass is indented under subclass 209. Subject matter
wherein the magnet or electromagnet is designed or
constructed to change its operating characteristics
responsive to variation in temperature, or includes
temperature responsive elements to effect such a change.
(1) Note. The temperature responsive element may be, for
example, a temperature sensitive biasing means or a portion
of the magnet such as, for example, a shunt means or the core
may include temperature sensitive material.
(2) Note. The temperature sensitive means may be responsive
to ambient temperature or responsive to the temperature
change due to current flow in the magnet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
37 for switches with plural automatic trips including a
thermal magnetic element.
subclasses 43+ for electromagnetically actuated switches
with thermal trips.
subclasses 146+ for multiple contact type switches with
thermal current responsive means.
208 for permanent magnet actuated switches of the
thermomagnetic type.
216 for superconductive type magnet or electromagnet.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
161+ for temperature responsive electromagnet with
circuit.
Subclass:
218
This subclass is indented under subclass 217. Subject matter
including means to produce a predetermined time interval
between the energizing instant and the time of operation of
the magnet or electromagnet.
(1) Note. The time interval may be determined by a thermal
element, a dashpot or any other time delay device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 28+ for automatic reclosing or resetting
switches with time delay means, especially subclass 31 for
thermally actuated delay means.
subclasses 39+ for switches with magnetic latch means with
time delay means.
subclasses 59+ for retarded or delayed switches in general,
particularly subclass 66 for electrothermal delay means.
subclasses 239+ for nontemperature responsive magnets or
electromagnets with time delay means.
Subclass:
219
This subclass is indented under subclass 209. Subject matter
wherein the magnet or electromagnet is combined with devices
or structures of other art classes, the art device being
claimed so broadly as to form no basis for classification in
the art device class.
Subclass:
220
This subclass is indented under subclass 209. Subject matter
including one or more armatures operated by one or more
electromagnets.
(1) Note. This subclass and the indented subclasses include
the electromagnet and armature combinations, per se. For the
combination of electromagnet with armature and diverse type
art device, see subclass 219.
(2) Note. The combination of an electromagnet with armature
and contacts is excluded from this subclass and is classified
above as an electromagnetically actuated switch.
Subclass:
221
This subclass is indented under subclass 220. Subject matter
wherein the armature is actuated when the electromagnet is
excited with a supply signal of a predetermined frequency or
range of frequencies.
(1) Note. This subclass includes electromagnets with
armature in which the armature is actuated in response to a
predetermined change or shift in frequency.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 4+ for radio frequency switches such as the T/R
type.
70 for frequency responsive or synchronous motor operated
switches.
94 for frequency responsive vibratory reed type switches.
101 for alternating current switches responsive to
preselected or synchronous frequency.
243 for alternating current actuated electromagnets with
armature.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 129 for frequency responsive transmission or
interconnection electrical switching systems.
318, Electricity: subclass 147 for electrical circuit for
frequency responsive relay or electromagnet.
Subclass:
222
This subclass is indented under subclass 220. Subject matter
including a permanent magnet and a coil suspended or
positioned within the magnetic field of the permanent magnet
for relative movement with respect to the permanent magnet;
the relative movement being caused by interaction of a
magnetic field produced in the coil and the magnetic field of
the permanent magnet.
(1) Note. This subclass includes the electromagnetic
portion of the D'Arsonval type galvanometer but does not
provide for the complete galvanometer which is located in
Class 324, Electricity: Measuring and Testing, subclasses
144+, especially subclass 146.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 148+ for electrodynamically actuated switches
with moving coils.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclasses 10+
for electric generators or motor structure which include
subject matter as provided for in this subclass.
324, Electricity: Measuring and Testing, subclass 76.11 for
apparatus for measuring, testing or sensing devices with a
moving coil especially subclass 146 (see (1) Note above).
Subclass:
223
This subclass is indented under subclass 220. Subject matter
including plural conductors mounted such that at least one
conductor is movable relative to the other.
(1) Note. The plural conductors may be plural coils, one of
which is fixed and the other is movable as in
electrodynamometer, wherein the movement between the two
coils is produced by the interaction of the magnetic field of
the coils.
(2) Note. This subclass also includes electromagnets
wherein the coil or core of the electromagnet is movable
toward the armature.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 68+ for electric motor actuated switches.
subclasses 148+ for electrodynamically actuated switches
with moving coils.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclasses 10+
for electric generators or motor structure which include
subject matter as provided for in this subclass.
324, Electricity: Measuring and Testing, subclass 76.11 for
apparatus for measuring, testing or sensing electricity, per
se, using relatively movable conductors, see especially
subclasses 144+.
Subclass:
224
This subclass is indented under subclass 223. Subject matter
wherein one of the relatively movable conductors induces a
current by electromagnetic induction into at least one of the
other conductors.
(1) Note. The said other conductor may be, for example, an
eddy current member.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclasses 10+
for electric generators or motor structure which include
subject matter as provided for in this subclass.
324, Electricity: Measuring and Testing, subclass 76.11 for
apparatus for measuring, testing or sensing electricity using
relatively movable conductors, see especially subclasses
137+.
Subclass:
225
This subclass is indented under subclass 224. Subject matter
wherein one movable conductor is a rotating disk.
SEE OR SEARCH THIS CLASS, SUBCLASS:
272 for electromagnets with rotating armature.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclasses 166+
for induction generator or motor structure which may
include rotating disk type moving conductor and subclass 268
for disc armature structure, per se.
324, Electricity: Measuring and Testing, subclasses 137+
for electrical meters using rotating disk type moving
conductors.
361, Electricity: Electrical Systems and Devices, subclasses
139+ for electric circuits for relays and electromagnets
having rotating disk type movable conductor, especially
subclasses 143+.
Subclass:
226
This subclass is indented under subclass 224. Subject matter
in which one of the conductors is a short circuited coil or
winding.
(1) Note. The short circuited winding may be of the type
which is known as a shading coil.
SEE OR SEARCH THIS CLASS, SUBCLASS:
100 for electromagnetically actuated switches with short
circuited winding or closed loop.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclass 172
for motor or generator structure with short circuited
winding.
318, Electricity: Motive Power Systems, particularly
subclass 750 and 781+ for motor control systems for shaded
pole induction motors.
324, Electricity: Measuring and Testing, subclasses 137+
for electrical meters using short circuited winding.
336, Inductor Devices, subclass 76 for the structure of
inductive devices having a short circuited coil or single
conductive member (e.g., rings, bands, discs, etc., of
conductive material).
Subclass:
227
This subclass is indented under subclass 220. Subject matter
wherein the core or armature is designed to magnetically
saturate within the normal current operating range of the
device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 84+ for polarity responsive switch with magnetic
structure that may be saturable.
SEE OR SEARCH CLASS:
336, Inductor Devices, subclasses 155+ for the structure of
inductive regulators of the saturable type.
Subclass:
228
This subclass is indented under subclass 220. Subject matter
including means to convert the motion of the armature into an
effective motion of a different type.
(1) Note. This subclass includes means, such as cams,
screws, gears or other mechanical movement means to
convert, for example, a reciprocal motion of a plunger type
armature to a useful rotary motion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
73 for motor actuated contacts utilizing eccentric or cam
actuator.
110 and 122+, for multiple contact type electromagnetically
actuated switches with motion conversion means.
140 for step-by-step switch with ratchet and pawl actuator.
subclasses 189+ for switch contact actuator utilizing
mechanical linkage.
261 for plunger type armature structure or material.
272 for rotating armature type electromagnet.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, appropriate subclass for
various motion conversion means, see especially subclasses
99+ for reciprocating to or from oscillating motion and
subclasses 112+ for rotary to intermittent unidirectional
motion.
310, Electrical Generator or Motor Structure, subclasses 20+
for reciprocating dynamoelectric devices with motion
conversion means and subclasses 80+ for rotary dynamoelectric
machines with motion conversion mechanism.
Subclass:
229
This subclass is indented under subclass 220. Subject matter
wherein the magnetomechanical motive device includes a
permanent magnet in combination with the electromagnet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
137 for multiple contact electromagnetically actuated
switches including a permanent magnet.
153 for vacuum or hermetically sealed switches with
permanent magnet.
179 for electromagnetically actuated switches with plural
magnets of diverse magnetic characteristics, including
permanent magnet.
subclasses 205+ for permanent magnet actuated switches.
222 for relatively movable coil and permanent magnet such as
D'Arsonval type devices.
subclasses 302+ for permanent magnet structure.
SEE OR SEARCH CLASS:
336, Inductor Devices, especially subclass 110 for inductor
device with permanent magnet.
Subclass:
230
This subclass is indented under subclass 229. Subject matter
wherein the permanent magnet is combined with the
electromagnet such that the movement of the armature is
responsive to the direction of current flow in the armature
controlling circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 78+ for polarity responsive electromagnetically
actuated switches.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclass
208 for electric circuit for polarized relays and
electromagnets.
Subclass:
231
This subclass is indented under subclass 230. Subject matter
wherein the armature or mechanical means which is adapted to
be moved by the polarized electromagnet, is of a type movable
to varying positions between two extreme positions,
responsive to the intensity of the alternating current
energizing signal.
(1) Note. This subclass includes polarized electromagnets
having armatures of the type that are used for loudspeakers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 99+ for alternating current type switches.
222 for relatively movable coil and permanent magnet.
subclasses 243+ for alternating current type
electromagnets.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
143+ for electric circuit for alternating current relay or
electromagnet.
369, Dynamic Information Storage or Retrieval, subclass 147
for similar subject matter utilized in phonograph disc
recording tone arms.
381, Electrical Audio Signal Processing Systems and Devices,
subclass 177 and 400+.
Subclass:
232
This subclass is indented under subclass 230. Subject matter
wherein the polarized electromagnet actuates plural
armatures.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 119+ for multiple contact switches utilizing
plural armatures.
184 for switches with plural magnets and plural
reciprocating armatures aligned or rigidly connected.
242 for electromagnet with time delay means wherein plural
armatures are selectively retarded.
259 for plural plunger type armatures. 265, for nonpolarized
type plural armatures actuated by single electromagnetic
coil.
267 for plural electromagnets with plural armatures.
Subclass:
233
This subclass is indented under subclass 232. Subject matter
including means to lock at least one of the armatures of the
polarized electromagnet in either the open or closed
position, responsive to the energization of the
electromagnet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 21+ for automatic circuit interrupting type
switches with latch means.
77 for switches combined with motors, the switch having
locking means.
120 for multiple contact switches with interlocking plural
armatures.
164 for switches with manually or gravity operated latch
means.
subclasses 167+ for switches with latching means.
subclasses 253+ for electromagnets with armature latch
means.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
192+ and 194 for electric circuit for magnets or relays
with interlocking or holding means.
Subclass:
234
This subclass is indented under subclass 230. Subject matter
wherein the electromagnet is energized by direct current
signal, the polarity of which determines the direction of
flux flow and consequently the movement of the armature.
(1) Note. This subclass provides for polarized
electromagnets wherein a permanent magnet holds the armature
in one position until the electromagnet is energized with a
direct current signal of the proper polarity to produce a
flux flow to overcome the attraction of the permanent
magnet.
(2) Note. This subclass also provides for polarized
electromagnets wherein the armature normally is in a balanced
state and is moved in one direction or the other responsive
to the polarity of the direct current signal applied to the
electromagnet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 78+ for polarity responsive electromagnetically
actuated switches.
231 for polarized electromagnets responsive to varying
alternating current amplitude.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, for
polarity responsive switching systems.
361, Electricity: Electrical Systems and Devices, subclass
77 for reverse phase responsive protective systems,
subclasses 78+ for reverse energy or current, and subclass
208 for polarized electromagnets with circuits.
Subclass:
235
This subclass is indented under subclass 230. Subject matter
wherein the armature of the polarized electromagnet is a
vibrating reed or spring bar type.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 93+ for switches with vibratory reed type
armature.
203 for switch armature structure.
231 for varying alternating current amplitude responsive
polarized electromagnets.
252 for alternating current type electromagnets with
vibrating armature.
266 for plural coils with vibrating armatures.
Subclass:
236
This subclass is indented under subclass 220. Subject matter
wherein the electromagnet includes at least two magnetic flux
paths, one of which is a secondary or shunt flux path.
SEE OR SEARCH THIS CLASS, SUBCLASS:
12 for automatic circuit interrupting switches with shunting
contacts.
211 for electron or ion beam deflecting magnet with magnetic
shunt.
295 for permanent magnets with hold strength control means.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclass 190
and 191 for similar subject matter in dynamoelectric
machines.
322, Electricity: Single Generator Systems, subclass 50 for
electric generator having a magnetic shunt.
336, Inductor Devices, subclass 133 for inductive devices
with plural part cores having an adjustable magnetic shunt,
and subclasses 160+ for the structure of inductive regulators
with magnetic shunts.
Subclass:
237
This subclass is indented under subclass 236. Subject matter
wherein the reluctance of the shunt path is adjustable to
vary the magnetic flux flow therethrough.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclass 190
for field winding with adjustable shunt and subclass 191 for
adjustable magnetic field structure.
336, Inductor Devices, subclass 133 for inductive devices
with plural part cores, having an adjustable magnetic shunt.
Subclass:
238
This subclass is indented under subclass 220. Subject matter
including auxiliary means to move the armature, in addition
to the electromagnetic means.
(1) Note. The auxiliary means may be, for example, a manual
means to move the armature into position to be held by the
electromagnetic means, or an auxiliary means for actuating
the armature in case of power failure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
27 for automatic interrupter with automatic combined with
manual reclosing means.
164 for electromagnetic switch with manually operated latch
and electromagnetic trip.
186 for electromagnetic switch combined with manual
actuator.
Subclass:
239
This subclass is indented under subclass 220. Subject matter
including means to produce a predetermined time interval
between the energizing instant and the time of operation of
the electromagnet.
(1) Note. The time interval may be determined, for example,
by reluctance control means or dashpot means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 28+ for automatic reclosing or resetting
switches combined with timing or delay means.
subclasses 39+ for automatic switches with magnetic latch
means having time delay.
subclasses 59+ for retarded or delayed type switches.
139 for step-by-step type switches with timing or indexing
means.
218 for temperature responsive type magnet and
electromagnets with time delay means.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclass 1.5 for
miscellaneous escapements.
307, Electrical Transmission or Interconnection Systems,
subclasses 141+ for switching actuation systems with time
delay or retardation means.
361, Electricity: Electrical Systems and Devices, subclasses
195+ for electric circuits for relays and electromagnets
with time delay.
368, Horology: Time Measuring Systems or Devices, subclasses
124+ for escapement mechanisms used in horology.
Subclass:
240
This subclass is indented under subclass 239. Subject matter
wherein a dashpot means is used to provide the time delay.
SEE OR SEARCH THIS CLASS, SUBCLASS:
29 for reclosing or resetting latch or trip means for
automatic circuit interrupter with fluid controlled delay.
61 for switches with pneumatic delay means such as dashpot,
for example.
62 for switches with hydraulic delay means.
SEE OR SEARCH CLASS:
188, Brakes, subclasses 266+, for a fluid-resistance brake or
shock absorber of general utility.
Subclass:
241
This subclass is indented under subclass 239. Subject matter
wherein an auxiliary control coil or magnet is used to
provide the time delay.
SEE OR SEARCH THIS CLASS, SUBCLASS:
63 for switches with magnetic or electromagnetically
actuated delay means.
Subclass:
242
This subclass is indented under subclass 239. Subject matter
including plural armatures with time delay means for delaying
different armatures at different time intervals.
SEE OR SEARCH THIS CLASS, SUBCLASS:
60 for switches with plural sets of contacts selectively or
differently delayed.
subclasses 232+ for polarized electromagnets with plural
armatures.
259 for plural plunger type armatures.
Subclass:
243
This subclass is indented under subclass 220. Subject matter
wherein the electromagnet and armature is particularly
adapted for operation by alternating current.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 99+ for alternating or fluctuating current type
switches.
204 for through conductor type switch.
subclasses 223+ for relatively movable conductor
(dynamometer) type devices.
231 for polarized electromagnet responsive to varying
alternating current amplitude.
236 for alternating current type electromagnet with shunt
flux path.
subclasses 239+ for alternating current type electromagnet
with time delay.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
143+ for electric circuit for alternating current relays
and electromagnets.
Subclass:
244
This subclass is indented under subclass 243. Subject matter
including means to cause a phase shift between the magnetic
flux produced in plural windings or in separate portions of
the electromagnet.
(1) Note. This subclass provides for electromagnets having
plural windings and means to apply current of different phase
to at least two of the plural windings.
(2) Note. This subclass provides for the combination of a
two winding electromagnet with a dephasing circuit for
converting single phase current into plural phase current.
(3) Note. This subclass provides for electromagnets wherein
the electromagnet has sections thereof made of different
materials to cause a phase of one section to be delayed with
respect to the phase of another section.
SEE OR SEARCH THIS CLASS, SUBCLASS:
247 for alternating current type electromagnets with chatter
or noise preventing means which may include phase
displacement means.
SEE OR SEARCH CLASS:
318, Electricity: Motive Power Systems, subclasses 781+
for induction motor system utilizing phase conversion.
363, Electric Power Conversion Systems, subclasses 148+ for
phase conversion circuits.
Subclass:
245
This subclass is indented under subclass 244. Subject matter
wherein the flux phase displacement is obtained by the use of
a shading coil.
(1) Note. A shading coil is a short-circuited coil in which
the circulating current lags behind the flux which induces
the current.
SEE OR SEARCH THIS CLASS, SUBCLASS:
104 for switches with chatter or noise preventing means
which may include shading coils.
247 for electromagnets with chatter or noise preventing
means including shading coils.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclass 172
for alternating current dynamoelectric devices with shading
means.
361, Electricity: Electrical Systems and Devices, subclasses
139+ for electric circuits for alternating current
electromagnets with shading coils.
Subclass:
246
This subclass is indented under subclass 244. Subject matter
having plural windings in the electromagnet and having means
to apply current of different phase to the different
windings.
SEE OR SEARCH THIS CLASS, SUBCLASS:
8 for polyphase type automatic circuit interrupters.
102 for alternating current switches of the polyphase type.
Subclass:
247
This subclass is indented under subclass 243. Subject matter
including means to prevent or decrease chatter or hum noise
of the armature.
(1) Note. The chatter or hum noise of the armature is
caused by vibration of the armature relative to the stop
means. One cause of this type of vibration is alternating
current relays in the alternations of the current when the
relay is energized.
SEE OR SEARCH THIS CLASS, SUBCLASS:
46 for automatic circuit interrupting switches with
vibration preventing means.
90 for periodic switches with vibrating damping means.
104 for alternating current switches with chatter or bounce
preventing means.
subclasses 157+ for switches with operation inhibiting
means.
193 for contact actuator with vibration, bounce or vibration
prevention means.
subclasses 244+ for alternating current magnets with flux
phase displacement means which may also prevent vibration or
chatter.
271 for armature mounting means with vibration preventing
means.
SEE OR SEARCH CLASS:
248, Supports, subclasses 560+ for resilient supports.
336, Inductor Devices, subclass 100 for inductor devices
(e.g., transformers and inductive reactors) having vibration
control.
Subclass:
248
This subclass is indented under subclass 247. Subject matter
wherein the chatter or noise preventing means include spring
or cushion type vibration absorbers.
Subclass:
249
This subclass is indented under subclass 247. Subject matter
wherein the armature is specially constructed or mounted to
prevent vibration noise.
SEE OR SEARCH THIS CLASS, SUBCLASS:
257 for plunger type armatures with vibration preventing
means.
271 for armature mounting means with vibrating preventing
means.
277 for electromagnets specially mounted or enclosed to
prevent shock or vibration.
Subclass:
250
This subclass is indented under subclass 243. Subject matter
including significant details of the alternating current coil
construction or coil mounting means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
282 for coil structure or material for electromagnet and
armature not specially constructed for operation by
alternating current.
subclasses 299+ for coil structure or material in general.
Subclass:
251
This subclass is indented under subclass 243. Subject matter
wherein the armature is in the form of a solenoid core or
plunger.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 52+ for conductive liquid fluid type switches
with piston or plunger.
131 for multiple contact switch with reciprocating
armature.
subclasses 255+ for nonalternating current type
electromagnets with plunger type armature.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
160+ for electric circuits for plunger type alternating
current electromagnets.
Subclass:
252
This subclass is indented under subclass 243. Subject matter
wherein the armature of the alternating current electromagnet
is mounted to have a back and forth or vibration movement
responsive to the alternation of the alternating current.
(1) Note. The armature may vibrate because the
electromagnet is supplied with alternating current, or the
armature may vibrate because the alternating current is
periodically interrupted as, for example, by an interrupter
switch.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 87+ for periodic (e.g., vibrator) switches
particularly subclasses 93+ and 95+ for vibrating armature
structures.
215 for magnetostrictive type electromagnets with vibrating
armature.
Subclass:
253
This subclass is indented under subclass 220. Subject matter
including armature latch means responsive to movement of an
armature to latch or hold said armature or another armature
in a particular position.
(1) Note. This subclass provides for electromagnets with
plural armatures wherein the movement of one armature
actuates a latch means to prevent the operation of another
armature.
(2) Note. The armatures of this subclass may be locked in
the open or closed position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 21+ for automatic circuit interrupters with
latch or trip means.
77 for motor actuated switches with latch.
113 for multiple contact automatic telephone type switch
with latch.
subclasses 160+ for interlocking switches.
subclasses 167+ for switches with latching means.
233 for polarized electromagnet with latching means.
274 for magnetic armature holding or locking means such as
magnetic biasing means.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclass 483 for
mechanical locking or interlocking means for machine elements
and subclasses 527+ for detent type locking means.
200, Electricity: Circuit Makers and Breakers, subclass 50
for interlocking switches.
361, Electricity: Electrical Systems and Devices, subclass
194 for control circuits for electromagnetic devices
including a holding means.
Subclass:
254
This subclass is indented under subclass 253. Subject matter
wherein the armature latch means is positioned in the latch
or unlatch position by the attractive or repulsive force of
an energized coil winding.
(1) Note. The latch control winding is usually an auxiliary
winding which does not control the operation of the
armature.
SEE OR SEARCH THIS CLASS, SUBCLASS:
170 for switches with magnetically operated latch means.
274 for magnetic armature holding or locking means such as a
magnetic biasing means.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclass
194 for control circuits for electromagnetic devices
including a holding means.
Subclass:
255
This subclass is indented under subclass 220. Subject matter
wherein the armature is in the form of a core or plunger
mounted for movement within the coil or solenoid of the
electromagnet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 52+ for conductive liquid type switches with
magnetic plunger or piston.
217 for temperature responsive electromagnets with plunger
type armature.
239 for time delay electromagnet with plunger type
armature.
251 for alternating current electromagnet with plunger type
armature.
SEE OR SEARCH CLASS:
124, Mechanical Guns and Projectors, subclass 3 for
electromagnetic solenoid means for linearly moving a magnetic
projectile through the barrel of a projecting device.
310, Electrical Generator or Motor Structure, subclass 14
for linear motor of the solenoid and core type, subclasses
23+, 30 and 34+ for dynamoelectric device with reciprocating
plungers.
336, Inductor Devices, subclasses 130+ for inductor with
relatively movable core and coil, particularly subclass 136
for inductor with telescoping core and coil.
361, Electricity: Electrical Systems and Devices, subclasses
139+ for control circuit for plunger type relays or
electromagnets.
Subclass:
256
This subclass is indented under subclass 255. Subject matter
wherein the electromagnet has plural coils that control a
single plunger type armature.
(1) Note. The plural coils may be separately energized or
may be simultaneously energized.
(2) Note. The plural coils may be arranged so that the
armature is moved in one direction or the other, depending
upon which coil is energized.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 266+ for nonplunger type armature controlled by
plural coils.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclasses 34+
for dynamoelectric devices with plunger controlled by plural
coils.
361, Electricity: Electrical Systems and Devices, subclass
210 for control circuits for relays and electromagnets with
plural coils.
Subclass:
257
This subclass is indented under subclass 255. Subject matter
including means to absorb the shock of the armature when
coming to rest against an armature stop, thereby preventing
vibration of the armature.
(1) Note. The shock absorber means may be a spring means or
other resilient material serving as a cushion to stop the
armature movement with minimum of armature vibration.
SEE OR SEARCH THIS CLASS, SUBCLASS:
46 for automatic circuit interrupters with undesirable
motion prevention means.
104 for alternating current switches with vibration
preventing means.
193 for switches with vibration or bounce preventing means.
247 for alternating current electromagnet with chatter or
noise preventing means.
271 for electromagnet armature mounting means with armature
bounce or vibration preventing means.
277 for electromagnet mounting arrangement with shock
absorption.
Subclass:
258
This subclass is indented under subclass 255. Subject matter
including means to adjust the distance of the armature
movement when the electromagnet is energized.
(1) Note. This subclass includes adjustable armature stop
means or adjustable biasing means for determining the
distance the plunger type armature moves into the solenoid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
273 for adjusting means for nonplunger type armature.
274 for electromagnet armature biasing means or bias
adjustment means.
Subclass:
259
This subclass is indented under subclass 255. Subject matter
including plural plunger type armatures.
(1) Note. This subclass includes plural plunger type
armatures operated by a single electromagnetic coil.
(2) Note. Also included in this subclass are plural
electromagnetic coils each operating one or more plunger type
armatures.
SEE OR SEARCH THIS CLASS, SUBCLASS:
267 for electromagnets having plural coils and plural
armatures that are not plunger type armatures.
Subclass:
260
This subclass is indented under subclass 255. Subject matter
wherein the plunger type armature of the electromagnet is
enclosed in a sealed moisture or dust proof enclosure.
(1) Note. The sealed moisture-proof case may enclose the
armature only or it may enclose the entire electromagnet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 52+ for plunger operated conductive liquid
switches.
151 for vacuum or hermetically sealed switches.
202 for switches with housing means.
278 for electromagnets with casing or enclosure.
Subclass:
261
This subclass is indented under subclass 255. Subject matter
including details of the structure of the plunger type
armature, details of the material of which the armature is
made, or details of both the structure and the material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
203 for switches with significant armature structure.
251 for alternating current electromagnet with plunger type
armature construction or mounting means.
subclasses 279+ for electromagnets with significant
armature structure, of types other than plunger type
armatures.
Subclass:
262
This subclass is indented under subclass 261. Subject matter
including means to center or align the plunger type armature
in the solenoid coil or means to guide the plunger during its
movement relative to the coil when the coil is energized.
Subclass:
263
This subclass is indented under subclass 261. Subject matter
including means in combination with the plunger type armature
to prevent rotation of the armature relative to the solenoid
coil or casing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
262 for electromagnets with plunger type armature having
centering, aligning or guide means which may also serve to
prevent rotation of the armature relative to the solenoid
coil or casing.
Subclass:
264
This subclass is indented under subclass 261. Subject matter
wherein the plunger type armature includes a plurality of
sections, at least one of said sections being movable
relative to another section.
Subclass:
265
This subclass is indented under subclass 220. Subject matter
wherein plural armatures are located with respect to a coil
such that each armature is operated when the coil is
energized.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 119+ for multiple contact switches with plural
armatures.
subclasses 232+ for polarized electromagnets with plural
armatures.
242 for electromagnet with plural armatures selectively
retarded.
259 for plural plunger type armatures which may be operated
by a single coil winding.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
139+ and appropriate subclasses for control circuits for
electromagnetic devices having plural armatures.
Subclass:
266
This subclass is indented under subclass 220. Subject matter
wherein the electromagnets includes plural coils or magnets
arranged to operate at least one armature.
(1) Note. For classification in this subclass and the
indented subclasses, the movement of at least one armature is
controlled by the magnetic flux produced by two or more coils
or magnets.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 8+ for multipole or polyphase automatic circuit
breakers.
92 for periodic switches with plural actuating magnets.
102 for polyphase alternating current type switches.
103 for alternating current switches with plural flux
sources.
subclasses 136+ for multiple contact switches with plural
magnet or coil means.
149 for electrodynamically actuated switches with plural
coils.
subclasses 177+ for switches with plural magnets or flux
sources.
207 for switches with plural permanent magnets.
subclasses 229+ for electromagnet and permanent magnet with
armature.
246 for alternating current electromagnet with plural flux
displacement windings.
256 for electromagnets with plural plunger type armatures.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclass
210 for control circuits for relays and electromagnets with
plural coils.
Subclass:
267
This subclass is indented under subclass 266. Subject matter
including plural armatures.
(1) Note. For classification in this subclass, at least one
of the plural armatures is responsive to the magnetic flux of
two or more of the magnetic coils or magnets.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 119+ for automatic telephone type switches with
plural armatures.
184 for plural magnet switches with plural integral
reciprocating armatures.
subclasses 232+ for polarized electromagnets with plural
armatures.
259 for electromagnets with plural plunger type armatures.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
139+ and appropriate subclasses for control circuits for
electromagnetic devices with plural armatures.
Subclass:
268
This subclass is indented under subclass 266. Subject matter
wherein the plural coils of the electromagnet can be
energized independently of each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 107+ for multiple contact switches with the
contacts being selectively actuated.
256 for electromagnets with plural coils and single plunger
type armature.
Subclass:
269
This subclass is indented under subclass 220. Subject matter
including: armature mounting means; means forming part of
the armature; means operating with the armature or a
combination of these means to balance the armature so that it
is insensitive to acceleration or deceleration.
SEE OR SEARCH THIS CLASS, SUBCLASS:
46 for automatic circuit interrupter with contact rebound or
other undesirable motion prevention means.
subclasses 157+ for switches with shock resistant means.
193 for switches with contact vibration, bounce or chatter
prevention means.
257 for plunger type armatures with shock absorbing means.
271 for armature mounting means with vibration preventing
means.
277 for electromagnets constructed or mounted to prevent
shock, vibration or bounce.
Subclass:
270
This subclass is indented under subclass 220. Subject matter
wherein the subject matter includes details of the armature
mounting means.
(1) Note. This subclass includes armature that are
statically balanced by placing the pivot of the armature at
the center of gravity of the armature.
SEE OR SEARCH THIS CLASS, SUBCLASS:
249 for armature mounting to prevent chatter or noise.
251 for alternating current electromagnet with plunger type
armature.
255 for direct current electromagnet with plunger type
armature.
subclasses 279+ for armature shape, structure or material
in general.
Subclass:
271
This subclass is indented under subclass 270. Subject matter
including means to prevent vibration of the armature when it
contacts an armature stop.
(1) Note. The means to prevent vibration of the armature
may include, for example, fluid type rebound damping means,
elastic or resilient material or weight on the armature.
SEE OR SEARCH THIS CLASS, SUBCLASS:
46 for automatic circuit interrupting switches with contact
rebound or other undesirable motion preventing means.
90 for periodic switches with vibration damping means.
104 for alternating current switches with chatter, bounce or
vibration preventing means.
subclasses 157+ for switches with operation inhibiting
means (shock resistant).
193 for switches with contact actuating means with vibration
bounce or chatter prevention means.
247 for alternating current electromagnets with chatter or
vibration preventing means.
257 for plunger type armature with shock absorbing means.
277 for electromagnets mounted to prevent or absorb shock.
SEE OR SEARCH CLASS:
248, Supports, subclasses 560+ for resilient supports.
336, Inductor Devices, subclass 100 for inductor devices
(such as transformers and inductive reactors) with vibration
control means.
Subclass:
272
This subclass is indented under subclass 270. Subject matter
wherein the armature is in the form of a disk or a
cylindrical member and is mounted so that when the
electromagnet is energized, the armature revolves on its
support or about its center, within a plane perpendicular to
the support means.
(1) Note. The rotation of the armature may be a complete
revolution or a partial revolution.
(2) Note. This subclass does not provide for armatures
mounted for pivotal movement such that the movement of the
armature is not confined to a plane perpendicular to the
support means, as in subclass 276, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 68+ for rotary electric motor actuated
switches.
100 for alternating current switch with rotating induction
or eddy current member.
125 for multiple contact switches with rotary armature.
225 for electromagnets with relatively movable conductors
including a rotating disk type armature member.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, appropriate
subclasses for rotary electric dynamoelectric machine
structure, especially subclasses 261+ for rotor
structures.
Subclass:
273
This subclass is indented under subclass 270. Subject matter
including means to adjust the position of the armature
relative to the core or armature stop means.
(1) Note. The distance between the armature and the core
element may be adjusted by changing the position of the
armature or by changing the position of the core element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
96 for periodic switch with adjustable armature.
144 for switch with electrothermal actuator with armature
positioning or adjusting means.
258 for plunger type armature with stroke adjustment means.
274 for armature biasing or bias adjustment means.
Subclass:
274
This subclass is indented under subclass 270. Subject matter
including significant details of the armature biasing means
or including significant means for adjusting the armature
biasing means.
(1) Note. Bias as used in this class refers to
unidirectional force applied by a spring, a permanent magnet
or an electromagnet acting on an armature, which tends to
hold the armature in a given position.
(2) Note. This subclass includes magnetically biased
armatures, wherein a permanent magnet or an electromagnet is
used to apply biasing force to the armature.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 15+ for automatic circuit interrupting devices
with contact biasing.
192 for switches with contact biasing means.
subclasses 253+ for electromagnets with armature latch
means.
269 for electromagnets biased to be dynamically balanced.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 142 for switching systems with switch locking,
holding or braking means.
361, Electricity: Electrical Systems and Devices, subclass
194 for control circuits for electromagnetic devices
including a holding means.
Subclass:
275
This subclass is indented under subclass 270. Subject matter
wherein the armature is attached to its support means by a
hinge type mounting arrangement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
276 for pivot support type armature mounting means.
Subclass:
276
This subclass is indented under subclass 270. Subject matter
wherein the armature is mounted upon a support such that it
has a pivotal movement toward or away from the magnetic core
or stop means when energized.
(1) Note. Pivotal movement as used here refers to
armatures, usually elongated members supported at a point
intermediate its ends to provide an up and down or back and
forth movement of the armature, such as seesaw fashion; or
the elongated armature member is supported at one end such as
with a pivotal pin and the movement of the armature is
perpendicular to the axis of the pivot means.
(2) Note. This subclass provides for elongated center pivot
type armature.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 128+ multiple contact switches with pivotal
armature.
181 for switches with plural magnets with pivoted armature.
272 for electromagnets with rotating disk or cylindrical
armature.
275 for hinge type armature support.
Subclass:
277
This subclass is indented under subclass 220. Subject matter
including means to prevent vibration or shock in the
electromagnet.
(1) Note. This subclass includes means for mounting the
electromagnet or the electromagnet casing with resilient or
cushion means to prevent vibration from reaching the
electromagnet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 157+ for switches with operation inhibiting
means (shock resistant).
271 for electromagnet armature bounce or vibration
preventing means.
278 for electromagnet casing or enclosure.
SEE OR SEARCH CLASS:
248, Supports, subclasses 560+ for resilient supports.
336, Inductor Devices, subclass 100 for inductor devices
(such as transformers and inductive reactors) with vibration
control means.
Subclass:
278
This subclass is indented under subclass 220. Subject matter
including structure of a casing or enclosure for the
electromagnet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 151+ for vacuum or hermetically sealed
switches.
162 for plural switches with unitary housing, support or
flux path.
202 for switches with significant housing or support means.
260 for plunger type electromagnets with sealed enclosure or
casing.
292 for hermetically sealed or moisture proofed lifting or
attracting electromagnet.
294 for lifting or attracting electromagnet with outer
casing or housing.
299 for particular magnetic coil structure with casing.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclasses 17+
for boxes and housings with fluid or vacuum and subclasses
50+ for housings in general for electrical apparatus.
336, Inductor Devices, subclass 90 for inductors with outer
casing or housing.
Subclass:
279
This subclass is indented under subclass 220. Subject matter
including significant details of the armature shape,
structure or material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 55+ for conductive liquid type switches with
significant armature structure.
subclasses 80+ for polarity responsive switches with
armature structure.
subclasses 95+ for periodic switch armature structure.
124 for multiple contact switches with significant armature
structure.
203 for switches with significant armature structure.
249 for armature structure to prevent chatter or noise.
subclasses 261+ for electromagnets with plunger type
armature structure.
Subclass:
280
This subclass is indented under subclass 279. Subject matter
wherein the significant armature structure comprises
spherical balls or elements, metallic filings or fine
granular material.
Subclass:
281
This subclass is indented under subclass 220. Subject matter
including significant magnetic core or pole shape, structure
or material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 84+ for magnetic structure in polarity
responsive switches.
91 for actuating magnet structure or material in periodic
switches.
153 for permanent magnet structure in vacuum or hermetically
sealed switches.
subclasses 296+ for magnet structure or material.
subclasses 297+ for core structure.
SEE OR SEARCH CLASS:
336, Inductor Devices, appropriate subclasses, especially
subclass 83 for structure of core forms or casing for
various inductor devices; subclass 212 for structure and
assembly of plural cores for inductor devices, and subclasses
233+ for core structure and composition in general.
Subclass:
282
This subclass is indented under subclass 220. Subject matter
including significant details relating to the shape or
structure of the coil or to the material of the coil.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 213+ for the structure of electron or ion beam
deflecting magnets.
250 for alternating current switch with particular coil
structure.
subclasses 255+ for electromagnets with plunger type
armature with particular coil structure or material.
subclasses 299+ for coil structure or material in general.
SEE OR SEARCH CLASS:
336, Inductor Devices, appropriate subclasses for inductor
device coil structure.
Subclass:
283
This subclass is indented under subclass 209. Subject matter
including magnetic means for maintaining a blade such as a
knife or razor blade in a sharp, burr free condition.
(1) Note. Generally the cutting edge of the blade is held
flat against the face of a magnet or in the field of the
magnet for the purpose of straightening out the microscopic
burrs on the cutting edge of the blade.
SEE OR SEARCH CLASS:
30, Cutlery, subclasses 35+ for razors having means to
facilitate the sharpening of their blades (Note especially
subclass 36) and subclasses 138+ for other cutting tools
combined with a sharpening means.
76, Metal Tools and Implements, Making, subclasses 81-89.2
for tool sharpeners.
132, Toilet, subclass 292 for toilet kits having as part
thereof magnet sharpening means.
279, Chucks or Sockets, appropriate subclasses for blade and
tool handles having magnetic holding means.
451, Abrading, subclass 45 for a process of sharpening a
cutting blade by abrading means.
Subclass:
284
This subclass is indented under subclass 209. Subject matter
including means for magnetizing or demagnetizing magnets or
electromagnets.
SEE OR SEARCH CLASS:
29, Metal Working, subclasses 607+ for methods of making
permanent magnets not elsewhere classified.
307, Electrical Transmission or Interconnection Systems,
subclass 101 for control or removal of residual or permanent
magnetism.
324, Electricity: Measuring and Testing, subclass 200 for
magnetic testing and measuring.
361, Electricity: Electrical Systems and Devices, subclasses
143+ for control circuits for electromagnetic devices
including magnetizing or demagnetizing the magnetic field,
and subclass 267 for demagnetizing systems and processes.
Subclass:
285
This subclass is indented under subclass 209. Subject matter
including magnetic means for holding a device, which is
separate from the magnetic means, in a desired position.
(1) Note. This subclass includes holding type magnets with
means to remove the object from the magnet, such as a lever
element to lift the object away from the holding magnet.
SEE OR SEARCH CLASS:
134, Cleaning and Liquid Contact With Solids, appropriate
subclasses, especially subclass 57 and 58 for cleaning
devices that utilize magnets and electromagnets.
248, Supports, subclass 206 for specially mounted brackets
utilizing magnets.
269, Work Holders, appropriate subclasses, particularly
subclass 8 for magnetic work holders. Class 269 is the
residual locus for patents to a device for clamping, support
and/or holding an article in position to be operated on or
treated.
279, Chucks or Sockets, appropriate subclasses for chucks or
sockets actuated by electromagnetic means.
294, Handling: Hand and Hoist-Line Implements, subclass 65.5
and 88 for magnetic material handing devices.
439, Electrical Connectors, subclass 12 for electrical
connectors with magnet or suction cup.
451, Abrading, subclasses 246+ for a magnetic rotary work
holding device.
Subclass:
286
This subclass is indented under subclass 285. Subject matter
including means adapted to be placed between the magnet and
the workpiece or the object being held by the magnet.
(1) Note. The adaptor may be made of a nonmagnetic material
and be used merely to prevent, for example, the workpiece
from rocking, or it may be of magnetic material and be used
to bridge the flux from the magnet into the workpiece.
(2) Note. This subclass also includes magnetic chucks that
are angular in shape to facilitate holding the workpiece.
Subclass:
287
This subclass is indented under subclass 286. Subject matter
wherein the holding magnet chuck is adjustable to various
angles so that the workpiece can be held at various
elevations.
(1) Note. This subclass includes adjustable magnetic chucks
that are angular in shape to facilitate holding the workpiece
in various angular positions.
Subclass:
288
This subclass is indented under subclass 285. Subject matter
wherein the holding magnet is a magnetic chuck or
work-holding type which can be rotated while holding the
workpiece.
(1) Note. The rotary type magnetic chuck may include
permanent magnets or electromagnets.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
139+ for electric circuit for rotary type electromagnetic
chucks.
Subclass:
289
This subclass is indented under subclass 285. Subject matter
wherein the holding magnet is an electromagnet.
(1) Note. This subclass includes electromagnetic chuck type
magnets for holding workpiece in a desired position while
performing a work operation upon the workpiece such as, for
example, grinding or cutting.
SEE OR SEARCH THIS CLASS, SUBCLASS:
286 for holding magnet with workpiece to magnet adapter
using electromagnets.
288 for rotary type holding magnet using electromagnets.
Subclass:
290
This subclass is indented under subclass 289. Subject matter
wherein the electromagnet type work holder includes means to
control the magnetic flux of the electromagnet such as, for
example, shunt means or circuit controlling switch means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
237 for magneto-mechanical motive device type electromagnet
with adjustable shunt path.
295 for permanent magnet type work holding device with
magnetic hold control means.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, subclasses
139+ for control circuits for an electromagnetic chuck.
Subclass:
291
This subclass is indented under subclass 289. Subject matter
including electromagnets which are utilized for lifting
articles such as pig-iron or for pulling articles such as
hair pins from the hair.
SEE OR SEARCH THIS CLASS, SUBCLASS:
290 for lifting type electromagnets with control means.
SEE OR SEARCH CLASS:
175, Boring or Penetrating the Earth, subclass 328 for
drilling bit or bit element which is magnetized or with
magnet element.
209, Classifying, Separating, and Assorting Solids,
subclasses 38-40 and 212 through 232 for magnetic assorting
of solid materials.
414, Material or Article Handling, subclass 606 for an
elevator or hoist and loading or unloading means therefor and
wherein a magnet (e.g., an electromagnet) lifts an object of
magnetically-attractive material for seizure by a grapple;
and subclass 737 for a vertically swinging load support
provided with a load-grasping member which may be in the
nature of a magnet (e.g., an electromagnet).
600, Surgery, subclasses 9+ for magnetic energy applied to
the body for therapeutic purposes, especially subclass 11 for
probes for removing magnetic particles from the body.
Subclass:
292
This subclass is indented under subclass 291. Subject matter
wherein the lifting or pulling type electromagnet is
hermetically sealed to keep moisture, dust or other foreign
particles from the magnet elements.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 151+ for vacuum or hermetically sealed type
switches.
162 for plural switches with unitary housing.
202 for switches with housing or support means.
260 for hermetically sealed electromagnet with plunger type
armature.
278 for electromagnet with sealed casing or enclosure.
294 for lifting or holding electromagnet with outer casing
or housing.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclasses 17+
for boxes and housings with fluid or vacuum and subclasses
50.5+ for hermetic sealed envelope type boxes and housings
for electrical devices.
336, Inductor Devices, subclasses 90+, for inductor with
outer casing or housing.
Subclass:
293
This subclass is indented under subclass 291. Subject matter
wherein the lifting or pulling magnet is enclosed within a
casing such that it can be held by hand when it is in use.
SEE OR SEARCH CLASS:
336, Inductor Devices, subclass 66 for inductor device
supported by a handle.
Subclass:
294
This subclass is indented under subclass 291. Subject matter
wherein the lifting or pulling electromagnet is enclosed in a
special housing or casing.
(1) Note. This subclass includes lifting type magnets
enclosed in sweeper type housing for rolling along the floor
to pick up hairpins or other metallic particles.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 151+ for vacuum or hermetically sealed
switches.
162 for plural independent switches with unitary housing,
support or flux path.
202 for switches with significant housing or support means.
278 for casing or housing for electromagnet with armature.
292 for hermetically sealed lifting type electromagnet.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclasses 17+
for boxes and housing with fluid or vacuum and subclasses
50+ for boxes and houses in general for electrical devices.
336, Inductor Devices, subclasses 90+ for inductor with
outer casing or housing.
Subclass:
295
This subclass is indented under subclass 285. Subject matter
including means to control or vary the holding strength of
the magnet.
(1) Note. This subclass includes permanent magnets with
means to divert or shunt the magnetic flux away from the
workpiece being held, to thereby magnetically release the
workpiece for removal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
12 for automatic circuit interrupting switches with shunting
contacts.
211 for electron or ion beam deflecting magnets with magnet
shunt.
subclasses 236+ for electromagnets with shunt means.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclass 190
for dynamoelectric machine winding or core structure with
magnetic shunt.
336, Inductor Devices, subclass 133 and 160+ for inductive
devices with adjustable magnetic shunts and inductive
regulators with magnetic shunts, respectively.
Subclass:
296
This subclass is indented under subclass 209. Subject matter
including magnets or electromagnets, per se, with significant
details of magnet structure, shape or configuration, or with
details of the type of material of the magnet.
SEE OR SEARCH CLASS:
29, Metal Working, subclass 602.1 for process of making
electromagnets.
75, Specialized Metallurgical Processes, Compositions for Use
Therein, Consolidated Metal Powder Compositions, and Loose
Metal Particulate Mixtures, subclass 122.1 for magnetic
alloys, and subclasses 228+ for consolidated metal powder
compositions which may be magnetic.
148, Metal Treatment, subclasses 100+ for treatment of
magnetic material.
252, Compositions, subclass 62.51 for magnetic material
compositions.
336, Inductor Devices, subclass 218 for core structure with
magnetic orientation of magnetic core material; and subclass
225 for coils of special configuration.
428, Stock Material to Miscellaneous Articles, subclass 611
for metallic stock having its magnetic properties coordinated
with its shape, and subclass 928 for a collection of magnetic
metallic stock materials.
Subclass:
297
This subclass is indented under subclass 296. Subject matter
including significant details of the magnetic core structure
or material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 84+ for magnetic structure of polarity
responsive switches.
subclasses 91+ for actuating magnet structure of periodic
switches.
103 for alternating current switch with plural magnetic
actuating structures.
subclasses 177+ for switches utilizing plural magnets or
flux sources.
211 for electron or ion beam deflecting magnets with
magnetic shunt structure.
subclasses 236+ for electromagnet with magnet shunt
structure.
281 for electromagnet with armature having details of the
core structure or material.
SEE OR SEARCH CLASS:
336, Inductor Devices, subclass 83 for structure of core
forms or casing for various inductor devices, subclass 212
for structure and assembly of plural cores for inductor
devices, and subclasses 233+ for core structure and
composition in general.
Subclass:
298
This subclass is indented under subclass 297. Subject matter
including means to adjust the position of the magnetic core
element to vary the airgap spacing.
(1) Note. This subclass also includes electromagnets with
means for adjusting the position of the connecting back strap
relative to the magnetic cores to vary the reluctance of the
electromagnet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
86 for polarity responsive switches with adjusting means.
212 for electron or ion beam deflecting magnets with
adjustable magnetic element.
237 for electromagnet and armature with adjustable shunt
path.
273 for electromagnets with means to adjust the position of
the armature with respect to the core element.
287 for work holding magnet with angularly adjustable
fixture.
295 for work holding magnet with magnetic hold control
means.
SEE OR SEARCH CLASS:
336, Inductor Devices, appropriate subclasses for inductors
with adjustable cores, especially subclasses 132+ for
inductors with relatively movable core parts.
Subclass:
299
This subclass is indented under subclass 296. Subject matter
including significant details of the magnetic coil structure
or material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 213+ for electron or ion beam deflecting type
coil structures.
250 for alternating current electromagnet and armature with
particular coil construction or mounting means.
282 for electromagnets with significant magnetic coil
structure or material.
SEE OR SEARCH CLASS:
336, Inductor Devices, appropriate subclasses for coils of
various structural shape or configuration or coils made of
various types of materials.
Subclass:
300
This subclass is indented under subclass 299. Subject matter
including, means to cool the coil of the electromagnet.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 15.1
for fluid or vacuum cooling means for electrical apparatus.
336, Inductor Devices, subclasses 55+ for inductor devices
with temperature modifier means.
Subclass:
301
This subclass is indented under subclass 296. Subject matter
including electric or magnetic shielding means in combination
with the magnet structure for shielding at least part of the
magnet from electric or magnetic fields, or for preventing
the coil of the magnet from emanating undesired electric or
magnetic fields.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202 for electromagnetic switch with electric or magnetic
shielding means.
214 for electron or ion beam deflecting type electromagnet
with shielding means.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclasses 35+
for electric or magnetic shields or screens, per se, or
general utility.
336, Inductor Devices, subclass 84 for inductor devices
provided with electric or magnetic shield means.
Subclass:
302
This subclass is indented under subclass 296. Subject matter
wherein the particular magnet structure relates to permanent
magnets.
SEE OR SEARCH THIS CLASS, SUBCLASS:
153 for vacuum or hermetically sealed type switch with
permanent magnet structure.
179 for switch with electromagnet and permanent magnet
structure.
222 for relatively movable coil and permanent magnet
structure.
subclasses 229+ for magneto-mechanical motive device with
permanent magnets.
283 for blade sharpening or conditioning type permanent
magnets.
295 for work or object holding permanent magnet with magnet
hold control means.
SEE OR SEARCH CLASS:
29, Metal Working, subclasses 607+, for processes of
mechanical manufacture of permanent magnets.
33, Geometrical Instruments, subclasses 355+, for magnetic
compasses.
75, Specialized Metallurgical Processes, Compositions for Use
Therein, Consolidated Metal Powder Compositions, and Loose
Metal Particulate Mixtures, appropriate subclasses for
ferrous alloys useful in permanent magnets.
251, Valves and Valve Actuation, subclass 65 for permanent
magnet valve actuator devices.
310, Electrical Generator or Motor Structures, especially
subclasses 152+ for the structure of permanent magnets
utilized in dynamoelectric machines and subclass 181 for
field winding comprising electromagnet and permanent magnet
structure.
324, Electricity: Measuring and Testing, subclass 48 for
testing permanent magnets.
336, Inductor Devices, subclass 110 for inductor including
permanent magnet structure.
Subclass:
303
This subclass is indented under subclass 302. Subject matter
wherein the permanent magnetic material is enclosed or
embedded within a flexible plastic, cloth or tape.
(1) Note. This subclass includes permanent magnets wherein
the magnetic particles are enclosed between layers of cloth,
plastic or tape or is embedded within the cloth, plastic or
tape.
SEE OR SEARCH CLASS:
16, Miscellaneous Hardware, subclasses 116+ for insulated
handles with permanent magnets embedded or enclosed therein.
296, Land Vehicles: Bodies and Tops, subclass 107.01 for
magnetic weather seal for convertible automobile tops.
360, Dynamic Magnetic Information Storage or Retrieval,
subclasses 131+, for record carriers which may include
magnetic particles coated on or embedded in a flexible
plastic base.
Subclass:
304
This subclass is indented under subclass 302. Subject matter
wherein permanent magnets are mounted or arranged to prevent
or substantially reduce stray leakage flux across the
airgap.
Subclass:
305
This subclass is indented under subclass 302. Subject matter
wherein the permanent magnet is in the form of a plug adapted
to be threaded or otherwise inserted into a liquid containing
vessel, such as a crankcase, for collecting metallic
particles suspended in the liquid for removal from the
crankcase or container.
SEE OR SEARCH CLASS:
209, Classifying, Separating, and Assorting Solids, subclass
212 and 213+ for magnetic classifying, separating or
assorting means.
210, Liquid Purification or Separation, subclasses 222+ for
magnetic purification or separation means.
600, Surgery, subclass 11 for magnetic probes used to remove
magnetic particles from the body.
Subclass:
306
This subclass is indented under subclass 302. Subject matter
including plural permanent magnets.
SEE OR SEARCH THIS CLASS, SUBCLASS:
207 for permanent magnet actuated switches with plural
permanent magnets.
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