U.S. PATENT AND TRADEMARK OFFICE
Information Products Division |
U.S. Patent Classification System - Classification Definitions
as of June 30, 2000
Patents classified in a subclass may be accessed by either clicking on
the subclass number
preceding each subclass definition or on the
" " icon, below.
( please note that patents for some subclasses may not be available )
For classification search strategies, please refer to the
Classification Index
Explanation of Data web page.
(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 184
LUBRICATION
Class Definition:
This class is not intended to include the lubrication
generally of machines of every kind; but it is intended to
include those devices employed to lubricate bearing parts in
a machine where such lubricating device forms no part of the
machine structure.
Where the lubricating device is a part of the machine, where
the structure is modified to admit of lubrication, where the
particular or peculiar operation of the machine governs the
operation of the lubricating device, or, in other words,
where there is a special combination between the lubricating
device and the machine in connection with which the
lubricating device is used, then such device is classified
with the machine to which it belongs.
Exception: Where the machine is operated by air, steam, or
water and the same means used to operate the lubricator, then
such lubricator belongs to this class, provided the structure
of the machine is not modified.
LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
Where the machine is operated by air, steam, or water and the
same means used to operate the lubricator, then such
lubricator belongs to this class, provided the structure of
the machine is not modified. An example of this exception is
in this class (184), subclass 52.
For further search upon this line, see Class 384, Bearings,
appropriate subclasses, and also the particular class in
which the machine or device itself belongs.
(1) Note. Where the modification of a journal-box is no
more than a hole to admit a lubricant or allow it to escape
and a lubricating device is used in connection with such a
journal-box, the device will go in this class (184) unless
there is a particular combination between the journal-box and
the lubricating device.
The following classes have the noted subclasses, which are
classified on the basis of the lubrication of solid,
relatively movable surfaces or the materials used therefor.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
16, Miscellaneous Hardware, subclass 36 for caster
lubricators and subclass 274 for hinge lubricators.
19, Textiles: Fiber Preparation, subclass 285.
30, Cutlery, subclass 483 for a bench plane with
lubricator.
57, Textiles: Spinning, Twisting, and Twinning, subclass 120
and subclass 133 and indented subclass.
65, Glass Manufacturing, subclass 170 for a glass working
machine with apparatus lubricating means.
72, Metal Deforming, subclasses 41+ for a method or an
apparatus for plastically shaping metal and including a step
of or a means for applying a lubricant to the work, and
subclass 236 for a rolling mill with roller-lubricating
means.
73, Measuring and Testing, subclass 280 for structure to oil
volume or rate of flow meter diaphragms.
74, Machine Element or Mechanism, subclass 467, and indented
subclass, 587, and 605.
83, Cutting, subclass 169 for means to lubricate a cutting
tool or the work.
87, Textiles: Braiding, Netting, and Lace Making, subclass
32.
92, Expansible Chamber Devices, subclasses 153+ for
lubricating means for an expansible chamber device. See the
Class Definition of Class 92, in References To Other Classes,
under Class 184, for a statement of the line between Class 92
and Class 184.
112, Sewing, subclass 43 and 256.
118, Coating Apparatus, appropriate subclasses, for coating
apparatus.
123, Internal-Combustion Engines, subclass 90.1 and 196.
137, Fluid Handling, subclasses 246+ for lubricated
valves.
152, Resilient Tires and Wheels, subclass 2 and indented
subclasses for spring wheel lubrication.
188, Brakes, subclass 264 for lubricating brake shoes,
wheels, or drums.
192, Clutches and Power-Stop Control, subclass 70.12 for an
arrangement of opposed clutch faces having means to lubricate
the elements, and 113.1+ for lubricating means for a clutch
element.
198, Conveyors: Power-Driven, subclasses 500+.
267, Spring Devices, subclass 50 and 268, for vehicle spring
structure claimed in combination with a lubricator or having
a lubrication feature.
277, Seal for a Joint or Juncture, for a generic sealing
means or process, subclasses 512+ for a dynamic
circumferential contact seal for other than a piston intended
to be contained or compressed by a gland member in a packing
box having means to introduce or direct a fluid or subclass
930 for a seal including means to introduce, circulate, or
remove fluid having a heating or cooling feature.
384, Bearings, subclasses 322+ and see search notes.
407, Cutters, for Shaping, subclass 11 for a lubrication
means for a milling machine cutter or for a lathe cutter,
combined with such a cutter.
408, Cutting by Use of Rotating Axially Moving Tool,
subclasses 56+ for means to cut in the manner of that class
combined with means to apply fluent lubricating material to
the work or to the tool in the vicinity of the cutting edge.
417, Pumps, subclass 228 and 372.
418, Rotary Expansible Chamber Devices, subclasses 83+ for
rotary expansible chamber devices having nonworking fluid
lubrication or seal means.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, subclass 107 for a molding machine for
nonmetallic materials with means lubricating cooperating
apparatus parts.
451, Abrading, subclass 554 for a rigid abrading tool having
means to supply lubricant to the abrading surface.
464, Rotary Shafts, Gudgeons, Housings, and Flexible
Couplings for Rotary Shafts, subclasses 7+ for a flexible
coupling wherein the structure is modified so as to admit
lubrication.
474, Endless Belt Power Transmission Systems or Components,
subclasses 43+ and 91 for structure wherein a belt, pulley,
or guide roll is modified for the specific purpose of
facilitating admission of lubricant.
475, Planetary Gear Transmission or Components, subclasses
159+.
508, Solid Antifriction Devices, Materials Therefor,
Lubricant or Separant Compositions for Moving Solid Surfaces,
and Miscellaneous Mineral Oil Compositions, particularly
subclasses 110+ for lubricant compositions.
GLOSSARY:
MACHINE
The term "machine" includes any device having bearing parts.
SUBCLASSES
Subclass:
1.5
Devices having means for emptying, and replenishing the oil
in the crank case, transmission case, or differential casing
of an automobile.
(1) Note. This subclass will take devices adapted to
perform any one of the above functions alone, unless the
device (if for emptying or replenishing) is one which could
be used for dispensing or emptying for any purpose. In these
instances classification might be in either Class 222,
Dispensing, or Class 417, Pumps, respectively.
SEE OR SEARCH CLASS:
134, Cleaning and Liquid Contact With Solids, the line being:
(a) Processes of cleaning crank, transmission or differential
casing, per se, are in Class 134 or other appropriate class
under the lines with Class 134, even though involving the
operation of the apparatus cleaned, where only such operation
is claimed as is necessary for the cleaning operation.
Processes of combined cleaning and lubricating or
lubricating, per se, are in Class 184; and (b) apparatus
disclosed for cleaning only of crank, transmission, or
differential casings, or for removing of lubricant from the
same and cleaning, is in Class 134 or other appropriate class
under the lines with Class 134, and even though a combination
with the casing is claimed, as well as apparatus disclosed
generically for cleaning or lubricating. Class 184 has
apparatus disclosed for lubricating only, or combined
apparatus for cleaning and lubricating and also apparatus for
merely removing lubricant or for removing, cleaning, and
returning the cleaned lubricant.
222, Dispensing, see (1) Note.
417, Pumps, see (1) Note.
418, Rotary Expansible Chamber Devices, see (1) Note.
Subclass:
2
Devices specifically intended and arranged to lubricate the
wheels of mine-cars while in operation.
Subclass:
3.1
Rail or rail vehicle wheel lubricator:
This subclass is indented under the class definition. Subject
matter, including apparatus specifically adapted to lubricate
the rail or track, or the rail or track vehicle wheels.
(1) Note. The majority of the devices in this subclass are
located adjacent the track or rail on or in the ground.
Devices mounted on the vehicle are found in the indented
subclass 3.2.
SEE OR SEARCH CLASS:
104, Railways, subclass 279 for railway track clearers and
lubricators.
198, Conveyors: Power-Driven, subclass 500 for lubricating
devices for conveyor rails or rail wheels.
Subclass:
3.2
On vehicle:
This subclass is indented under subclass 3.1. Subject matter
including apparatus mounted on a track or rail vehicle,
specifically adapted to lubricate the track or rail, or the
track or rail vehicle wheel.
SEE OR SEARCH CLASS:
104, Railways, subclass 279 for railway track clearers and
lubricators.
198, Conveyors: Power-Driven, subclass 500 for lubricating
devices for conveyors rails or rail wheels.
Subclass:
4
Devices which are particularly adapted for use on a windmill
to lubricate the bearings.
Subclass:
5
Devices for lubricating slide-bearings where the lubricating
devices are practically part of the bearings. This subclass
is limited to the lubricating of the bearing.
(1) Note. Where the claims are broader and include parts of
the machine, the device goes to the machine class.
SEE OR SEARCH CLASS:
101, Printing, subclass 2
409, Gear Cutting, Milling, or Planning for lubricating
combined with a machine of that class.
Subclass:
5.1
BEARING PACKER:
This subclass is indented under the class definition. Subject
matter including devices specifically intended for
lubricating or repacking bearings, e.g., vehicle wheel
bearings.
SEE OR SEARCH CLASS:
384, Bearings, appropriate subclasses for bearing lubrication
where the lubricating means is a part of the bearing
structure.
Subclass:
6
The combination of conveying-pipes with a source of
lubricant-supply and arranged to lubricate the several
bearings of a machine or of several machines from a common
source of supply.
(1) Note. In connection with the above there may or may not
be an arrangement to return the oil not used to the source of
supply.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclass 90.33 for poppet
valve operating mechanism having a related lubrication
feature.
210, Liquid Purification or Separation, appropriate
subclasses for processes and apparatus for removal of a
constituent from a liquid mixture, e.g., oil filters,
particularly subclasses 167+ and 171 for the combination of
a liquid separator and art device defining no characteristics
of the art device in addition to those necessary to the
functioning of the liquid separator, e.g., a named source of
liquid or the separator.
Subclass:
6.1
This subclass is indented under subclass 6. Device provided
with means to sense the machine operation (e.g., change of
speed, load, temperature, etc.), to affect the operation of
the machines lubrication systems.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclass 196 for
synchronous operations of an engine and a lubrication forcing
means.
Subclass:
6.11
This subclass is indented under subclass 6. Device having
means for feeding a lubricant into a hollow shaft in a gas
turbine from which the lubricant is fed to the bearings.
Subclass:
6.12
This subclass is indented under subclass 6. Device having
means for lubricating a gear surface or a gear shaft.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclasses 467+ for gears
specifically modified for purposes of lubrication.
475, Planetary Gear Transmission Systems or Components,
subclasses 159+, for lubrication of planetary gear
transmission.
Subclass:
6.13
This subclass is indented under subclass 6. Device having
means for removing the lubricant from a machine sump.
Subclass:
6.14
This subclass is indented under subclass 6. Device having
means for lubricating machine tools.
Subclass:
6.15
This subclass is indented under subclass 6. Device having
means for lubricating sewing machines.
SEE OR SEARCH CLASS:
112, Sewing, subclass 43 and 256 for a sewing machine with
apparatus to lubricate it.
Subclass:
6.16
This subclass is indented under subclass 6. Device having
means for lubricating the rubbing parts of a rotary type
compressor.
(1) Note. Only a minute quantity of lubricant is generally
applied.
SEE OR SEARCH CLASS:
418, Rotary Expansible Chamber Devices, subclasses 83+ for
lubrication of a rotary expansible chamber device.
Subclass:
6.17
This subclass is indented under subclass 6. Device having
means for lubricating machines wherein the cylinders are
parallel or substantially parallel to a drive shaft.
(1) Note. These machines usually include wobbler can or
plate.
Subclass:
6.18
This subclass is indented under subclass 6. Device having
means for lubricating a vertical shaft.
Subclass:
6.19
This subclass is indented under subclass 6. Device including
means for lubricating links which are connected to other
bodies.
Subclass:
6.2
This subclass is indented under subclass 6. Device including
means to prevent disruption of the machines lubrication
system when the machine is tilted.
SEE OR SEARCH CLASS:
244, Aeronautics, subclass 135 for fuel supply systems
combined with aircraft.
Subclass:
6.21
This subclass is indented under subclass 6. Device including
conditioning means for the lubricant while in use in the
system.
Subclass:
6.22
This subclass is indented under subclass 6.21. Device wherein
the conditioning means raises or lowers the temperature of
the lubricant or maintains the proper fluidity.
SEE OR SEARCH THIS CLASS, SUBCLASS:
104.1 for apparatus for heating or cooling a lubricant other
than in a system.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclass 196 for engine
lubricators.
165, Heat Exchange, for heating or cooling apparatus of
general use.
236, Automatic Temperature and Humidity Regulation, for
temperature and humidity apparatus.
Subclass:
6.23
This subclass is indented under subclass 6.21. Device
including means to destroy or remove gas or vapor bubbles
dispersed in the lubricant.
SEE OR SEARCH CLASS:
96, Gas Separation: Apparatus, subclasses 155+ for
degasifying means for liquid, per se.
516, Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, Stabilizing, Breaking, or
Inhibiting, subclasses 115+ for processes of or
compositions for or subcombination compositions for the
breaking of or inhibiting of foam colloid systems, when
generically claimed or when there is no hierarchically
superior provision in the USPC for the specifically claimed
art.
Subclass:
6.24
This subclass is indented under subclass 6.21. Device wherein
the conditioning means (e.g., filtering, centrifuging or
separating) removes foreign material to purify the
lubricant.
SEE OR SEARCH CLASS:
210, Liquid Purification or Separation, for apparatus to
filter or separate liquids.
494, Imperforate Bowl: Centrifugal Separators, appropriate
subclasses for apparatus and process for breaking up a
mixture of fluids or fluent substances into two or more
components by centrifuging within a generally solid-walled,
receptacle-like member.
Subclass:
6.25
This subclass is indented under subclass 6.21. Device
includes magnetic means.
SEE OR SEARCH CLASS:
210, Liquid Purification or Separation, subclass 222 for
separators including a magnet of general use.
Subclass:
6.26
This subclass is indented under subclass 6. Device including
means to spray a lubricant for creating a mist or fog.
Subclass:
6.27
This subclass is indented under subclass 6. Device including
means to control spraying or leakage of lubricant to prevent
damage to a surface.
(1) Note. The lubricant would cause carbonization or other
detrimental effects to a surface.
Subclass:
6.28
This subclass is indented under subclass 6. Device including
structure for fixing or making fast the position of a
lubricant pump or system.
Subclass:
6.3
This subclass is indented under subclass 6. Device including
means to provide lubrication simultaneously with or prior to
starting the machine.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclass 196 for
lubrication systems combined with an engine.
Subclass:
6.4
This subclass is indented under subclass 6. Device provided
with (1) means to sense a change in the operation of a
lubrication system and means responsive to said change to
affect the operation of the machine, (2) means to prevent
abnormal pressures in a lubricating system or (3) means for
indicating the operation of the machine or supply.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclass 196 for
lubrication systems combined with engines.
340, Communications: Electrical, subclass 631 for electric
indicator for machine lubricant; and subclasses 679+ for
machine condition responsive indicating systems.
Subclass:
6.5
This subclass is indented under subclass 6. Device having
means for lubricating crank-type machines.
Subclass:
6.6
This subclass is indented under subclass 6.5. Device wherein
the machines have cylinders in more than one radial plane or
opposed.
Subclass:
6.7
This subclass is indented under subclass 6.5. Device wherein
an expansible chamber of the machine is below the connecting
rod.
Subclass:
6.8
This subclass is indented under subclass 6.5. Device having
means for lubricating a cylinder surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
18 for apparatus for lubricating a cylinder.
Subclass:
6.9
This subclass is indented under subclass 6.5. Device
including means for lubricating valves of the machine.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, sub- classes 90+ for
valve-operating mechanism in an engine.
Subclass:
7.1
For twister ring or spinning spindle:
This subclass is indented under subclass 6. Subject matter,
including apparatus specifically adapted to lubricate twister
rings or spinning spindles of textile or similar machines.
SEE OR SEARCH CLASS:
139, Textiles: Weaving, subclass 1 and 45 for lubricating
devices specifically for textile machines.
Subclass:
7.2
For chassis lubrication:
This subclass is indented under subclass 6. Subject matter,
including apparatus specifically adapted to lubricate the
bearing points in a chassis for a vehicle or other machine.
Subclass:
7.3
With flow regulator:
This subclass is indented under subclass 7.2. Subject matter,
including apparatus to control the lubricant flow.
Subclass:
7.4
This subclass is indented under subclass 6. With measuring or
metering value system: Subject matter, including apparatus to
monitor and indicate lubricant flow parameters.
Subclass:
8
This subclass is indented under subclass 6. Subject matter,
wherein there is a continuous tube from the source of
lubricant to the bearing.
Subclass:
9
This subclass is indented under subclass 6. Subject matter,
including apparatus comprising two telescoping tubes which
slide, where usually one tube is fastened to a stationary
part.
SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 580 for fluid distribution
systems including a running joint between movable parts of
the system.
Subclass:
10
This subclass is indented under subclass 6. Subject matter,
wherein a tube or collecting device is secured to a moving
bearing and the tube or collecting device carries a member
which at some point in its movement wipes a drop of oil from
the outlet of the reservoir of oil which is permanently
secured.
SEE OR SEARCH THIS CLASS, SUBCLASS:
63
Subclass:
11.1
Splash:
This subclass is indented under subclass 6. Subject matter
wherein the lubricant is splashed by some moving part of the
machine to be lubricated into one or more receptacles placed
so as to feed the lubricant so collected to the part(s) to be
lubricated.
(1) Note. This subclass is distinguished from subclass
13.1, in this subclass, by the fact in this subclass there
are means to catch the lubricant when splashed and to carry
it to the part(s) to be lubricated.
Subclass:
11.2
With conduit:
This subclass is indented under subclass 11.1. Subject matter
including a pipe, tube, or the like to transmit lubricant to
or from the part(s) to be lubricated.
Subclass:
11.3
For transmission band:
This subclass is indented under subclass 11.1. Subject matter
wherein a transmission band is lubricated.
Subclass:
11.4
With connecting rod clippers or scoops:
This subclass is indented under subclass 11.1. Subject matter
wherein connecting rod clippers or scoops pick up lubricant
from a crankcase during movement of the rod.
Subclass:
11.5
For endless band or chain feed:
This subclass is indented under subclass 11.1. Subject matter
wherein an endless band or a chain is lubricated.
Subclass:
12
This subclass is indented under subclass 61. Devices for
conveying the lubricant from a reservoir to a bearing. They
are more complicated than those of ....
Subclass:
13.1
Splash:
This subclass is indented under the class definition. Subject
matter s including apparatus in which a moving part strikes a
body of lubricant and spatters it about, so that it comes in
contact with a part to be lubricated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
11.1 for devices which splash lubricant into a catch means,
with lubricant then being carried to a part to be
lubricated.
Subclass:
14
Primarily receptacles for holding lubricant having an outlet,
and associated with this receptacle so as practically to be a
part of it, is some arrangement which regulates and causes
(either one or both) the oil to be delivered through the
outlet. These devices as above described are complete in
themselves and may be removed as an entirety from one machine
and placed on another.
SEE OR SEARCH CLASS:
48, Gas: Heating and Illuminating.
222, Dispensing.
Subclass:
14.1
Spring:
This subclass is indented under subclass 14. Subject matter
including apparatus specially intended, and arranged, to
lubricate a spring (e.g., coil, leaf, spiral, etc.).
SEE OR SEARCH THIS CLASS, SUBCLASS:
7 for devices for lubricating vehicle chassis.
Subclass:
15.1
Belt, cable, chain or conveyor:
This subclass is indented under subclass 14. Subject matter,
including apparatus for lubricating a belt, cable, chain or
conveyor.
SEE OR SEARCH CLASS:
30, Cutlery, subclass 123.4 and 381+ for chain saws, per
se.
83, Cutting, subclass 169 for chain saw lubrications.
198, Conveyors: Power-Driven, subclass 500 for power-driven
conveyor lubricators.
305, Wheel Substitutes for Land Vehicles, subclasses 117+
for wheel lubricators.
Subclass:
15.2
With injector:
This subclass is indented under subclass 15.1. Subject
matter, wherein the lubricant is applied to a belt, cable,
chain or conveyor by an injection means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
56 for steam or air injector lubricators.
Subclass:
15.3
With intermittent spray or drip:
This subclass is indented under subclass 15.1. Subject
matter, wherein an alternately on and off apparatus supplies
lubricant to a belt, cable, chain or conveyor.
Subclass:
16
Devices for applying the lubricant by a swab.
Subclass:
17
Devices for applying the lubricant by roller.
Subclass:
18
Devices designed and adapted especially for lubricating an
engine-cylinder.
SEE OR SEARCH CLASS:
92, Expansible Chamber Devices, subclasses 153+ for
lubricating means for the cylinder of an expansible chamber
device.
Subclass:
19
The lubricant is applied by a swab usually fastened to the
piston-rod.
Subclass:
20
Cylinder-lubricators in which the lubricant is applied by a
rotary swab.
Subclass:
21
Devices intended to be placed upon an elevator-car and in
position to lubricate the slideways of the same.
Subclass:
22
The lubricant is applied by a swab.
SEE OR SEARCH THIS CLASS, SUBCLASS:
102
Subclass:
23
The lubricant is applied by a roller or a rotating brush.
SEE OR SEARCH THIS CLASS, SUBCLASS:
101
SEE OR SEARCH CLASS:
492, Roll or Roller, for a roll, per se, not elsewhere
provided for, and see the notes thereunder.
Subclass:
24
As the name indicates, these devices are adapted to lubricate
a piston-rod.
SEE OR SEARCH CLASS:
277, Seal for a Joint or Juncture, for a generic sealing
means or process, subclasses 512+ for a dynamic,
circumferential, contact seal for other than a piston
intended to be contained or compressed by a gland member in a
packing box having means to introduce or direct a fluid.
Subclass:
25
Piston-rod lubricators in which the lubricant is applied by a
stationary swab.
SEE OR SEARCH THIS CLASS, SUBCLASS:
16 22 and 102.
Subclass:
-2
Lubricators, Force-feed.
In this type the lubricant in the reservoir is placed under
pressure by some means, and thus forced to its destination.
SEE OR SEARCH CLASS:
141, Fluent Material Handling, With Receiver or Receiver
Coacting Means, subclasses 311+, particularly subclasses 383+
for dispensers having means to couple to receivers.
Subclass:
26
A pump is used to force the lubricant from the container to
its destination.
(1) Note. Similar structures are to be found in Class 417,
Pumps and Class 418, Rotary Expansible Chamber Devices.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclass 495.
222, Dispensing, subclasses 251+, particularly, subclasses
255, 309, 333+, and 372+.
Subclass:
27.1
Mechanically operated:
This subclass is indented under subclass 26. Device wherein
the pump is mechanically connected to some source of power,
usually a moving part of the machine upon which the
lubricant-receptacle is mounted.
SEE OR SEARCH THIS CLASS, SUBCLASS:
71 and 74, for mechanically operated lubricator valves.
Subclass:
27.2
Multiple pumps:
This subclass is indented under subclass 27.1. Device
including a plurality of separate, mechanically operated
pumping units.
Subclass:
27.3
Pump with sight feed:
This subclass is indented under subclass 27.1. Device having
a transparent portion through which the flow of the lubricant
can be viewed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
96 for a lubricator sight feed, per se.
Subclass:
27.4
Oscillating cylinder:
This subclass is indented under subclass 27.1. Device wherein
the pump includes elements which undergo angular or swinging
movement, rather than linear, to pump the lubricant.
Subclass:
28
The pump-piston is operated by hand.
Subclass:
29
The piston is actuated by intermittent application of fluid
under pressure to the said piston.
SEE OR SEARCH THIS CLASS, SUBCLASS:
72 and 76.
Subclass:
30
The piston is actuated by means of a pendulum which is
vibrated by the motion of the machinery.
SEE OR SEARCH THIS CLASS, SUBCLASS:
73 and 78.
Subclass:
31
Pumps of the rotary type where the lubricant is forced by the
direct pressure of continuously revolving vanes or
equivalents.
Subclass:
32
The piston is so arranged that by its own oscillation it
covers and uncovers ports, so that during its forcing stroke
a lubricant is forced through an outlet-passage and upon its
suction-stroke the lubricant is admitted to the
pump-cylinder.
Subclass:
33
This subclass is indented under subclass 35. The pump is
mounted upon the valve and both rotate together. In action
it is like ..., hereinafter defined.
Subclass:
34
The discharge-valve from the pump-cylinder oscillates so that
the outlet-passage is in connection with the pump-cylinder
during the forcing stroke and the in-take-passage is
connected with the pump-cylinder at the suction-stroke of the
piston.
Subclass:
35
The discharge-valve from the pump-cylinder rotates
continuously, and the ports are so arranged that upon the
forcing stroke of the piston oil is distributed to a single
outlet or several outlets and upon the suction-stroke the
valve is in position to allow the lubricant to enter the
pump-cylinder from a source of supply.
(1) Note. Search indented subclasses under Lubricators,
Gravity-feed, Automatic cutoff, Rotatable valve.
Subclass:
36
Things not part of the lubricator-proper, but used in
connection with the same, such as special valves, etc.
Subclass:
-2
Lubricators, Force-feed, Followers.
Lubricators wherein the lubricant is forced by a piston,
which follows and pushes the lubricant from the receptacle.
Subclass:
37
The follower is moved by a mechanical connection between it
and some actuating source.
Subclass:
38.1
Hand-operated:
The piston-follower is actuated by hand to force the
lubricant out of its receptacle.
Subclass:
38.2
Follower rod threaded to receptacle:
This subclass is indented under subclass 38.1. Device wherein
the piston-follower is attached to a rod which is joined to
the lubricant-receptacle by a threaded connection for
relative movement.
Subclass:
38.3
Follower threaded to receptacle:
This subclass is indented under subclass 38.1. Device wherein
the piston-follower, itself, is joined to the
lubricant-receptacle by a threaded connection for relative
movement.
Subclass:
38.4
Follower threaded to rod:
This subclass is indented under subclass 38.1. Device wherein
the piston-follower is attached to a rod by a threaded
connection for relative movement.
Subclass:
39
Fluid-operated:
The piston-follower is actuated by fluid pressure which urges
it to move in one direction to force the lubricant out of its
receptacle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
54 and 55.1+, for lubricators wherein the lubricant is
subjected directly to a fluid pressure.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclasses 434+ for a
charge forming device.
222, Dispensing, subclasses 389+ for a fluid pressure
actuated discharge assistant.
Subclass:
39.1
Cyclical-type metered injector:
This subclass is indented under subclass 39. Device wherein
the piston-follower is subjected to a pulse of fluid pressure
to force a given amount of lubricant from its receptacle in
one shot, the piston-follower subsequently returning to its
initial position and the receptacle being refilled from a
reservoir to complete the cycle and await the next pulse.
SEE OR SEARCH THIS CLASS, SUBCLASS:
7.4 for a similar device included in a system.
SEE OR SEARCH CLASS:
123, Internal Combustion Engines, subclasses 446+ for an
internal combustion engine having a fuel injection device.
239, Fluid Sprinkling, Spraying, and Diffusing, subclasses
88+ for an injection nozzle and pump.
261, Gas and Liquid Contact Apparatus subclasses 34+ for a
liquid pump of that class type.
Subclass:
40
Fluid operated followers which are returned by
fluid-pressure.
Subclass:
41
Fluid-operated followers which are assisted by the expansive
force of a spring.
Subclass:
42
Fluid-operated followers which are returned by a spring.
Subclass:
43
Followers actuated by centrifugal force, due to the rotation
of the object upon which the lubricator is placed.
Subclass:
44
Followers actuated by mechanism operated by a pendulum, which
pendulum is swung by the motion of the machine.
Subclass:
45.1
Spring-operated:
The piston-follower is actuated by a spring to force the
lubricant out of its receptacle.
Subclass:
45.2
Spiral spring:
This subclass is indented under subclass 45.1. Device wherein
the spring element is a coil-spring.
Subclass:
46
A weight upon the follower moves the same.
Subclass:
47
There are two receptacles, and the followers are connected so
that when one follower moves in one direction the other
follower moves in the opposite direction.
Subclass:
48.1
Locking devices:
The piston-follower is engaged by means which inhibit or
prevent it from moving away from the lubricant.
SEE OR SEARCH THIS CLASS, SUBCLASS:
45.1 and 46, for spring and gravity operated devices which
urge the piston-follower toward the lubricant.
Subclass:
48.2
Friction type:
This subclass is indented under subclass 48.1. Device wherein
the piston-follower engaging means utilizes friction between
relatively movable members to inhibit or prevent the
piston-follower from moving away from the lubricant.
Subclass:
49
Steam is admitted to some receptacle, where it condenses, and
then the water of condensation flows into the
lubricant-receptacle and displaces the lubricant, and thus
forces it out.
SEE OR SEARCH THIS CLASS, SUBCLASS:
55.1
Subclass:
50.1
Double passage:
This subclass is indented under subclass 49. Device wherein
the steam and water of condensation flow into the
lubricant-receptacle through one passage and the displaced
lubricant flows out of the lubricant- receptacle through a
second passage.
Subclass:
50.2
Atomizer:
This subclass is indented under subclass 1. Device including
means to reduce the lubricant to minute particles.
Subclass:
51
The receptacle has but one passage to the interior, and the
steam must enter and the lubricant flow out this same
passage.
Subclass:
52
Devices used in connection with condensation-displacement
lubricators and placed on a steam-chest or analogous device
to prevent back pressure in the lubricator.
(1) Note. For restrictors not limited by structure to use
with a lubricating system, see Class 138, Pipes and Tubular
Conduits, subclass 40, and indented subclasses.
Subclass:
53
Receptacles attached to the lubricator by means of which
lubricant may be fed to a bearing in addition to the
lubricant regularly supplied or can be used in case any
accident occurs to the principal lubricator.
Subclass:
54
Displacement by liquid:
Device wherein the lubricant is directly displaced by a
liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 39+ for lubricators having a piston-follower
between the lubricant and the pressurized fluid.
SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 101.11 and 206+ for devices of
that class type using a displacing fluid.
Subclass:
55.1
Displacement by air or steam:
Lubricating device wherein the lubricant is directly
displaced by air or steam.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 39+ for lubricators having a piston-follower
between the lubricant and the pressurized fluid.
SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 101.11 and 206+ for devices of
that class type using a displacing fluid.
Subclass:
55.2
Air line lubricators:
This subclass is indented under subclass 55.1. Device wherein
lubricant passes from a receptacle and, as it leaves, it is
brought into contact with a stream of air or steam and
divided into fine particles or mist and carried by the air or
steam to a part to be lubricated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
6.26 for a lubrication system including a lubricant mister
or atomizer.
50.2 for an atomizer in a condensation displacement system.
SEE OR SEARCH CLASS:
239, Fluid Sprinkling, Spraying, and Diffusing, subclasses
340+ and 418+ for related devices of that class type.
261, Gas and Liquid Contact Apparatus, subclass 78.1 for an
atomizer of that class type.
Subclass:
57
Force-feed lubricators comprising an auxiliary tank in
connection with the lubricant-receptacle, which tank is
charged with compressed air, and this air is used to force
the lubricant from its receptacle.
Subclass:
58
The lubricant is drawn by suction to the part to be
lubricated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
76
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclasses 590+.
Subclass:
59
Force-feed, fluid-operated suction lubricators having an
opening of some kind which permits the air to come into the
receptacle, the pressure of the air assisting the suction.
Subclass:
60
The lubricant lies directly in the path of a fluid under
pressure, which mechanically wears off small particles of
lubricant from a mass of solid lubricant and carries it to
its destination.
SEE OR SEARCH CLASS:
4, Baths, Closets, Sinks, and Spittoons, subclasses 222+
for general disinfecting apparatus using water under pressure
to carry small particles from a solid mass of disinfectant to
a destination.
422, Chemical Apparatus and Process Disinfecting,
Deodorizing, Preserving, or Sterilizing, subclasses 261+
apparatus which dissolves a portion of a solid to form a
solution.
Subclass:
61
The lubricant is forced to its destination by means of a
conveyor, such as a screw, or by buckets and chain.
SEE OR SEARCH CLASS:
261, Gas and Liquid Contact Apparatus, subclass 34.
Subclass:
62
A bucket is used to elevate the lubricant and convey it to
some outlet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
10
Subclass:
63
The title is self-explanatory.
Subclass:
64
The lubricant is fed through a wick by capillary attraction.
SEE OR SEARCH THIS CLASS, SUBCLASS:
102
SEE OR SEARCH CLASS:
48, Gas: Heating and Illuminating, subclass 25.
Subclass:
65
Lubricators where the lubricant is fed by gravity and the
flow is usually controlled by a valve which is operated by
hand.
SEE OR SEARCH CLASS:
48, Gas: Heating and Illuminating, subclass 4.
123, Internal-Combustion Engines, subclasses 434+, 445, and
590+.
Subclass:
66
The feed is intermittently cut off and the valve is
automatically actuated from some extraneous source, such as
the machine which is being lubricated.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclass 451.
Subclass:
67
The valve is actuated by an electromagnet, solenoid, or
similar electrical device.
Subclass:
68
The valve is caused to operate by the expansion of some
metal, which expansion is caused by the heat generated by the
friction of the bearing to which the lubricator is attached.
Subclass:
69
The valve is usually a ball or some piece of metal of such
shape that the valve seats and unseats due to the vibration
of the machine to which the lubricator is attached.
Subclass:
70
Devices attached to a rotating machine part. During the
rotation of the part the oil is splashed and enters ports
near the top of an outlet-pipe to a bearing. When not in
motion, the level of the oil is below the ports in the tube.
Therefore there is no feeding.
Subclass:
-2
Lubricators, Gravity-feed, Automatic cut-off,
Rotatable-valve.
The valve is rotated to cause intermittent feeding
substantially in the manner out-lined in the definitions of
the subclasses under Vertically-reciprocating valve.
Subclass:
71
The valve is rotated by direct mechanical connection with
some source of power, substantially in the manner outlined in
the definitions of the subclasses under
Vertically-reciprocating valve.
SEE OR SEARCH THIS CLASS, SUBCLASS:
27.1 33, and 35.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclass 434.
Subclass:
72
The valve is rotated by fluid-pressure, substantially in the
manner outlined in the definitions of the subclasses under
Vertically-reciprocating valve.
SEE OR SEARCH THIS CLASS, SUBCLASS:
29 33, and 35.
Subclass:
73
The valve is rotated by a pendulum, substantially in the
manner outlined in the definitions of the subclasses under
Vertically-reciprocating valve.
SEE OR SEARCH THIS CLASS, SUBCLASS:
30 33, and 35.
Subclass:
-2
Lubricators, Gravity-feed, Automatic cut-off,
Vertically-reciprocating valve.
In this group of subclasses the valve regulating the feed is
reciprocated vertically.
Subclass:
74
The valve is operated by mechanical connections to some
source or power and caused to vertically reciprocate.
SEE OR SEARCH CLASS:
123, Internal Combustion Engines, subclass 434.
Subclass:
75
The valve is caused to return to its initial position by
means of a spring.
Subclass:
76
The valve is subject to fluid-pressure intermittently and
causes the valve to vertically reciprocate.
SEE OR SEARCH THIS CLASS, SUBCLASS:
58 and 59.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclass 434.
Subclass:
77
The valve is caused to operate because of the rotary motion
of the object to which it is attached.
SEE OR SEARCH THIS CLASS, SUBCLASS:
70
Subclass:
78
The valve is operated by a pendulum. Due to the motion of
the object to which the lubricator is attached the pendulum
is caused to vibrate.
Subclass:
79
The valve in its operation slides horizontally and may be
operated either by the motion of the machine or by some
outside source.
Subclass:
80
Lubricators having novelty in the closure for the cup as well
as the valve which regulates the flow of lubricant.
SEE OR SEARCH THIS CLASS, SUBCLASS:
88.1
SEE OR SEARCH CLASS:
217, Wooden Receptacles, subclass 56.
222, Dispensing, subclasses 482+.
Subclass:
81
A single receptacle has several outlets leading to several
bearings.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclasses 579+.
Subclass:
82
The valve is set to give a certain feed, usually by screw,
and the valve is opened or closed by a bodily vertical
movement of the valve-stem.
Subclass:
83
The controlling-valve is constructed so as to deliver a
definite quantity of lubricant at one time on turning the
valve.
SEE OR SEARCH CLASS:
222, Dispensing, subclasses 344+, 425+, 476, and 477.
Subclass:
84
The lubricant-container has only one opening. Upon being
inverted the receptacle is air-tight, and the feed of the oil
is regulated by the vacuum created in the top of the
receptacle.
Subclass:
85
The feed is accomplished by the use of a siphon.
Subclass:
86
The valves have means coacting with the valve-rod to lock the
same in any adjusted position.
Subclass:
87
The outlet from the receptacle is covered by a mass of
fibrous matter. This mass may be compressed, and so regulate
the outflow of lubricant.
Subclass:
88.1
Oil cup closure:
This subclass is indented under subclass 14. Device for
covering or closing an oil cup or lubricant fitting.
(1) Note. An "oil cup" is a device which holds a relatively
small amount of fluent lubricant which discharges by gravity
or capillary action (e.g., a wick).
SEE OR SEARCH THIS CLASS, SUBCLASS:
80 for a closure combined with a valve in a gravity feed
lubricator.
SEE OR SEARCH CLASS:
215, Bottles and Jars, subclasses 200+ for closures for
bottles and jars.
220, Receptacles, subclasses 200+ for closure for
receptacles, and see the notes thereunder.
222, Dispensing, subclasses 544+ and see the notes
thereunder.
Subclass:
88.2
Flexible cover:
This subclass is indented under subclass 88.1. Device wherein
the oil cup closure is a cover made of flexible material.
Subclass:
89
The part that closes the opening is held in place in a closed
position by a spring and is adapted to have the nose of an
oil-can push back the closing-piece and admit lubricant.
Subclass:
90
The cover of the cup is hinged.
SEE OR SEARCH CLASS:
217, Wooden Receptacles, subclass 56.
Subclass:
91
The cover is returned to its closed position by a spring.
SEE OR SEARCH CLASS:
217, Wooden Receptacles, subclass 56.
Subclass:
92
The cover upon being rotated uncovers an opening through
which lubricant can be admitted to the cup.
Subclass:
93
Devices in which the cover is brought back to its initial or
closed position by a spring.
Subclass:
94
The cover slides, and so uncovers an opening for the
admission of lubricant.
Subclass:
95
The cover is returned to its initial or closed position by a
spring.
Subclass:
96
Devices attached to a lubricator through which the lubricant
flows as it is discharged and by means of which the quantity
and rate of discharge may be observed.
SEE OR SEARCH CLASS:
73, Measuring and Testing, subclass 323 and indented
subclass.
220, Receptacles, subclasses 662+, and see the notes thereto,
for structures wherein a transparent panel is mounted in a
wall.
Subclass:
97
Auxiliary attachments to a sight-feed, such as reflectors,
shields, etc.
Subclass:
98
The heat generated by the friction of the bearing parts melts
a solid or semisolid in the cup and allows it to run onto the
bearing.
Subclass:
99
A solid stick of lubricant is in contact with the bearing.
It is melted by the friction.
Subclass:
100
This subclass is indented under subclass 5. Devices fastened
to a moving part of a slide-bearing and applying lubricant to
the bearing parts. They are separate from the structure
which they lubricate and may be removed from the same, in
which respect they distinguish from ..., in this class.
Subclass:
101
Devices not otherwise classifiable for applying lubricant to
a bearing by a roll, usually covered with felt.
SEE OR SEARCH THIS CLASS, SUBCLASS:
3 and 17.
SEE OR SEARCH CLASS:
492, Roll or Roller, for a roll, per se, not elsewhere
provided for, and see the notes thereunder.
Subclass:
102
Miscellaneous devices for applying lubricant to a bearing by
a swab.
SEE OR SEARCH THIS CLASS, SUBCLASS:
3 16, 19, 22, 25, and 64.
Subclass:
103.1
Constant level:
This subclass is indented under subclass 14. Device having a
lubricant distributing-reservoir and means to automatically
maintain a constant level of lubricant therein.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclasses 590+ for a
constant level charge mixing device in an internal-combustion
engine.
222, Dispensing, subclasses 64+ for dispenser having
material level control means.
Subclass:
103.2
Float-controlled:
This subclass is indented under subclass 103.1. Device
wherein the automatic level maintaining means includes a
buoyant body floating on or in the lubricant.
SEE OR SEARCH CLASS:
261, Gas and Liquid Contact Apparatus, subclass 70 for a
device of that class type having a float controlled liquid
inlet valve.
Subclass:
104.1
Lubricant heating and/or cooling device:
This subclass is indented under subclass 14. Device including
means to increase or decrease (or both) the temperature of
the lubricant.
SEE OR SEARCH CLASS:
165, Heat Exchange, subclasses 47+ for a structurally
installed heat exchanger; and appropriate subclasses for a
heat exchanger, per se.
277, Seal for a Joint or Juncture, for a generic sealing
means or process, subclass 930 for a seal including means to
introduce, circulate, or remove fluid having a heating or
cooling feature.
Subclass:
104.2
For internal-combustion engine:
This subclass is indented under subclass 104.1. Device
wherein the machine to be lubricated is disclosed as an
internal-combustion engine.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclass 90.1 and 196 for
lubricators limited by structure for use only with an
internal-combustion engine.
Subclass:
104.3
Lubricant cooling device:
This subclass is indented under subclass 104.2. Device having
only means to decrease the temperature of the lubricant.
Subclass:
105.1
Refilling device:
This subclass is indented under subclass 14. Device including
means to replenish the lubricant in the lubricant-receptacle,
either directly into a lubricant cup or through a grease
fitting, without disturbing the apparatus being lubricated.
SEE OR SEARCH CLASS:
141, Fluent Material Handling, With Receiver or Receiver
Coacting Means, appropriate subclasses beginning with
subclass 311, particularly subclasses 383+ for a filling
means and associated receiver.
Subclass:
105.2
Grease gun:
This subclass is indented under subclass 105.1. Device
wherein the means to replenish includes a lubricant delivery
member which has means to detachably fit on or in a lubricant
receiving nipple or fitting on the apparatus being
lubricated.
Subclass:
105.3
Nipple or fitting:
This subclass is indented under subclass 14. Device including
means detachable fluid connection between the refilling
device and the lubricant-receptacle of the apparatus being
lubricated.
(1) Note. A "Zerk" fitting is a common nipple or fitting.
Subclass:
106
Devices placed beneath a bearing which catch the unused oil
and either hold the same or have means connected therewith to
return it to the reservoir.
SEE OR SEARCH THIS CLASS, SUBCLASS:
6
SEE OR SEARCH CLASS:
220, Receptacles, subclasses 571+ for a drip or drain pan,
per se.
222, Dispensing, subclasses 108+.
Subclass:
107
FUSIBLE SAFETY MEANS FOR LUBRICATION DEVICE:
This subclass is indented under the class definition. Subject
matter including containing means utilizing a condition
responsive plug to inhibit lubricant flow from the container,
and which lubricates a device when environmental conditions
of predetermined temperature or pressure cause the plug to
melt.
SEE OR SEARCH THIS CLASS, SUBCLASS:
6.4 for lubrication systems which include safety devices.
Subclass:
108
SAFETY ALARM OR INDICATING MEANS:
This subclass is indented under the class definition. Subject
matter including apparatus provided with audio or visual
signal means responsive to an abnormal operating condition of
a lubrication device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
6.4 for lubrication systems with safety or indicating
means.
Subclass:
109
MISCELLANEOUS:
This subclass is indented under the class definition. Subject
matter including devices for lubricating surfaces which can
not be classified elsewhere.
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