U.S. PATENT AND TRADEMARK OFFICE
Information Products Division |
U.S. Patent Classification System - Classification Definitions
as of June 30, 2000
Patents classified in a subclass may be accessed by either clicking on
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Electronic Products Branch)
Class 191
ELECTRICITY: TRANSMISSION TO VEHICLES
Class Definition:
Means for transmitting electrical energy between relatively
moving objects. Generally involves the problem of
transmitting electrical energy from fixed points to vehicles
or other moving objects, or vice versa.
(1) Note. Includes the combination of generation and
transmission to and from the vehicle, but does not include
specific means for applying the electrical energy to any
specific purpose, which are classified according to the
application.
LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
This class does not include mere slip rings and brushes,
which are classified in Class 310, Electrical Generator or
Motor Structure, subclass 232; rail bonds which are
classified in Class 238, Railways: Surface Track, subclasses
14.1+; nor means peculiarly adapted for transmitting
electrical energy momentarily to a vehicle for the purpose of
operating a signal, switch, etc., which are classifiable in
Class 246, Railway Switches and Signals, and will be found in
the various subclasses containing the words "Intermittent
contact" in the title.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, for conductor,
conductor cable and insulator structure, conduits and
housings for conductor and insulator structures and conduits
and housings for other electrical equipment where the
characteristics of the electrical equipment are not claimed.
307, Electrical Transmission or Interconnection Systems,
subclass 145 for miscellaneous electrical systems involving
current collection or transfer.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 129 for consumable electrode discharge
devices (arc lamps, et cetera) provided with means to
transfer the electric current from a lead wire to a moving
electrode.
324, Electricity: Measuring and Testing, subclasses 323+
for geophysical exploration systems having means to pass
current from a moving electrode into the earth.
439, Electrical Connectors, for electrical connector
structure, especially subclasses 1+ for a pair of
relatively movable mating connectors; and subclasses 110+ for
a continuous outlet receptacle.
439, Electrical Connectors, for electrical connector
structure, especially subclasses 1+, for interrelated
connectors relatively movable during use, and subclasses 110+
for an uninterrupted support rail or uninterrupted contact
type electrical connector.
SUBCLASSES
Subclass:
1
This subclass is indented under the class definition. Means
not otherwise classifiable.
SEE OR SEARCH CLASS:
246, Railway Switches and Signals, particularly subclasses in
the title of which "cab signal or train control" occur.
343, Communications: Radio Wave Antennas, subclass 754,
757+, 869, and 882 for movable or rotatable antennas
including means to transmit electrical energy to the
antenna.
Subclass:
2
This subclass is indented under the class definition. Means
for supplying electric energy to or from vehicles and
involving processes or more than the mere physical
structure.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 9.1 for vehicle mounted electrical systems, and
subclass 145 for electrical systems which include current
collecting or transferring means.
310, Electrical Generator or Motor Structure, subclass 71
for dynamoelectric devices having circuit supply connections
therefor.
333, Wave Transmission Lines and Networks, subclasses 24+
for coupling networks including significant reactive
structure for effecting a transfer of oscillatory energy from
one circuit to another circuit and having attenuation and/or
delay characteristics over a frequency range for attenuating
and/or delaying in a predetermined manner wave energy passing
therethrough, and/or providing an impedance match between the
network and at least one of the circuits, and subclasses 1+
for such coupling networks in plural channel systems.
Subclass:
3
This subclass is indented under subclass 2. Systems
distributing a plurality of currents of different
characteristics to or from the vehicle.
(1) Note. The currents may be supplied simultaneously or
successively, and the conversion may be automatic or at
will.
Subclass:
4
This subclass is indented under subclass 3. Systems of
distribution of the convertible multiple current source type
wherein one source is on the vehicle and another exterior
thereto, the vehicle source obtaining its power primarily
from an external source.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 9.1 for electrical systems mounted on vehicles.
Subclass:
5
This subclass is indented under subclass 3. Systems of
distribution of the convertible multiple current source type
wherein one of the currents supplied to or from the vehicle
is alternating and another direct.
Subclass:
6
This subclass is indented under subclass 2. Systems of
distribution comprising a sectional contact conductor.
(1) Note. The physical structure of the sectional conductor
is classified in subclass 14, and indented subclasses in this
class.
Subclass:
7
This subclass is indented under subclass 2. Systems of
distribution wherein the current source is alternating and is
converted to an alternating current of different
characteristics before reaching the point of use.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 151 for miscellaneous conversion systems.
310, Electrical Generator or Motor Structure, subclass 160
for dynamoelectric frequency converters.
363, Electric Power Conversion Systems, appropriate
subclasses for electric power conversion systems, but
particularly subclasses 148+ for phase conversion, and
subclasses 157+ for frequency conversion.
Subclass:
8
This subclass is indented under subclass 2. Systems of
distribution to vehicles combined with means under the
control of the persons on the vehicle for de-energizing the
systems at will.
Subclass:
9
This subclass is indented under the class definition. A
conventional drawbridge, turn-table, or other transfer table,
with means for maintaining the bridge or table or a vehicle
thereon in electrical connection with a relatively fixed
point exterior to the bridge or table.
SEE OR SEARCH CLASS:
14, Bridges, subclass 31, and indented subclasses.
104, Railways, subclass 19, 35, 48, and 172.
Subclass:
10
This subclass is indented under the class definition. Subject
matter comprising a vehicle, its pathway, and a static
transformer whose primary is mounted on the pathway and its
secondary on the vehicle, or vice versa, whereby electrical
energy is transferred between the vehicle and its pathway.
SEE OR SEARCH CLASS:
124, Mechanical Guns and Projectors, subclass 3.
310, Electrical Generator or Motor Structure, subclasses 12+
for linear dynamoelectric machines, but particularly
subclass 13, where both the fixed and movable elements of the
machine are provided with electrical windings.
336, Inductor Devices, appropriate subclasses for the
structure of transformers and inductive reactors.
Subclass:
11
This subclass is indented under the class definition.
Vehicles having, a single current source, and means for
causing the same current to pass to each vehicle in series.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclasses 36+ for serially connected load circuits.
Subclass:
12
This subclass is indented under the class definition. Devices
having a relatively fixed current source, a movable vehicle
or other object and a flexible conductor connecting the two.
SEE OR SEARCH CLASS:
24, Buckles, Buttons, Clasps, etc., subclass 115, and
indented subclasses, for cord and rope holders providing a
take-up-function. Many of these devices are disclosed for
flexible conductors but are not limited to that use.
174, Electricity: Conductors and Insulators, subclass 69,
for extensible electric conduit, cable or conductor
structures.
248, Supports, subclass 51, 52, 329, and 330.1, for supports
having conductor take-ups.
267, Spring Devices, particularly subclass 69 and indented
subclasses for elastic extension devices operable as take-ups
for flexible conductors or other flexible strands but not
limited to electrical use.
362, Illumination, especially subclass 198.
Subclass:
12.2
This subclass is indented under subclass 12. Reel
Structures.
(1) Note. Combinations of reel structures with the vehicle
or object in or upon which the reel is mounted are in this
class, subclass 12.
(2) Note. The electrical translator to which energy is
supplied may be included in the claims, if no characteristics
thereof other than are necessary to define the reel structure
are set forth.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, particularly
subclasses 153+ for switches controlled by operation of a
reel.
242, Winding, Tensioning, or Guiding, subclasses 370+
particularly 390.8+, 391+, and 400+ for a reeling device that
may include an electrical source.
248, Supports, subclass 317, and indented subclasses,
particularly subclasses 329 and 330 for suspended supports
having reels, even though limited to use with electrical
conductors.
343, Communications: Radio Wave Antennas, subclass 707 for
trailing type antennas which may have a reel for the antenna
wire; and subclass 877 for antennas with a reel for the
antenna.
439, Electrical Connectors, subclasses 1+ for an electrical
connector having contacts relatively movable during use.
Subclass:
12.4
This subclass is indented under subclass 12.2. Reels having
secured thereto an electric connector plug or plug receptacle
permitting interconnection of the conductor on the reel and a
complementary connector part. The complementary connector
part may constitute the connector element of an electrical
translator.
SEE OR SEARCH CLASS:
439, Electrical Connectors, appropriate subclasses for an
electrical connector of general utility.
Subclass:
13
This subclass is indented under the class definition. Devices
wherein means involving conductors having two- dimension
contact-surfaces for the purpose of serving collectors
mounted on vehicles which are not confined to a fixed path.
(1) Note. The device generally comprises two parallel
spaced plane conductors, the lower one forming the vehicle
path.
Subclass:
14
This subclass is indented under the class definition. Devices
having means involving an uninterrupted feeder and plurality
of separated conductor sections exposed to the collector and
means connecting the feeder to the section.
Subclass:
15
This subclass is indented under subclass 14. Means of the
sectional conductor type wherein the sections are normally
connected to the feeder and normally energized therefrom.
The section exposed to the collector is generally much
shorter than the interval between sections and the collector
used generally is long enough to bridge from section to
section.
SEE OR SEARCH THIS CLASS, SUBCLASS:
47
SEE OR SEARCH CLASS:
246, Railway Switches and Signals, subclass 34, 41 and 58,
and indented subclasses.
Subclass:
-2
Sectional conductor, Normally dead section:
Means of the sectional conductor type in which the sections
are normally deenergized and a given section is connected to
the feeder only while the collector is in contact therewith.
Subclass:
16
Means of the normally dead section type wherein the sections
are energized by magnetic means and deenergized by mechanical
means or vice versa.
Subclass:
17
Means of the normally dead section type wherein the mechanism
for energizing and deenergizing the sections is operated
magnetically.
(1) Note. Most of the devices in this subclass involve an
electromagnetically operated current controller whose magnet
obtains current from the feeder when its section is energized
by the collector bridging from the adjacent live section.
Subclass:
18
This subclass is indented under subclass 17. Means of the
normally dead section magnetic circuit controlled type
wherein the magnetically operated mechanism for energizing
the sections is carried by the vehicle path and operated by a
magnet carried by the vehicle.
Subclass:
19
This subclass is indented under subclass 18. Means of the
normally dead section type in which the feeder and portions
of the sections are disposed in parallelism in a closed
conduit, which also carries a magnetic traveling bridging
piece for successively placing the sections in contact with
the feeder, the bridging piece being propelled by the magnet
carried by the vehicle.
Subclass:
20
Means of the normally dead section type in which the
mechanisms for energizing and deenergizing the sections are
mechanically operated by means of the collector or other
operator carried by the vehicle.
SEE OR SEARCH CLASS:
246, Railway Switches and Signals, subclass 161 and 246 for
trolley and car-actuated circuit closers, and 31.
Subclass:
21
This subclass is indented under subclass 20. Means of the
normally dead section mechanical circuit controlled type
wherein the conductor element is composed of a series of
insulated contact sections and a continuous feeder united by
a flexible or deformable casing, so that the collector or
other operator resting on the sections may force them into
contact with the feeder, thus energizing them.
Subclass:
22
This subclass is indented under the class definition.
Electrical conductors arranged adjacent the vehicle or object
path and presenting a substantially continuous exposed
surface for contact with a collector carried by the vehicle
or object. The electrical energy may be transmitted in
either direction.
SEE OR SEARCH CLASS:
246, Railway Switches and Signals, subclass 9, 65, 67, and
69, and indented subclasses.
Subclass:
23
This subclass is indented under subclass 22. Conductors
placed within a conduit which is provided with a continuous
aperture or slot for entry of the collector of the vehicle or
object and combinations thereof with the collector. The
conductor element presents a substantially continuous exposed
surface for contact with the collector.
(1) Note. The conductor may possess inherent rigidity or
inherent flexibility. In the former case the conductor
element, free from conduit structure, will be classified as a
third rail; in the latter case as a trolley conductor.
SEE OR SEARCH CLASS:
104, Railways, subclasses 165+.
439, Electrical Connectors, subclasses 110+ for an
electrical connector comprising an uninterrupted support rail
or uninterrupted contact.
Subclass:
24
This subclass is indented under subclass 23. Conductors of
the conduit type in which the slot or other place of entry of
the collector into the conduit is not symmetrical with
reference to the running rails or other vehicle path.
(1) Note. The collector opening is generally placed in the
flange-way of one of the running rails.
SEE OR SEARCH CLASS:
104, Railways, subclass 165, and indented subclasses.
Subclass:
25
This subclass is indented under subclass 23. Conductors of
the conduit type in which the place of entry of the collector
into the conduit is normally obstructed by a movable closer,
which is withdrawn as the collector passes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
31
SEE OR SEARCH CLASS:
104, Railways, subclass 194.
Subclass:
26
This subclass is indented under subclass 23. Conductors of
the conduit type combined with conduit draining means.
SEE OR SEARCH CLASS:
104, Railways, subclass 165, and indented subclasses.
Subclass:
27
This subclass is indented under subclass 23. Conductors of
the conduit type combined with heating means for various
purposes, as for keeping the conductor dry or for melting ice
therefrom. The heater may be built within the conductor
element itself.
SEE OR SEARCH CLASS:
104, Railways, subclass 165, and indented subclasses.
Subclass:
28
This subclass is indented under subclass 23. Conductors of
the conduit type modified to meet special local conditions,
such as crossings, switches, plow removal pits, etc.
SEE OR SEARCH CLASS:
104, Railways, subclass 165, 185 and 195.
Subclass:
29
This subclass is indented under subclass 22. Conductors of
the rigid rail type, which are placed above the ground or
other vehicle pathway, but so near such way as not to clear
persons and other ordinary objects on the ground, and which
present a substantially continuous exposed surface for
contact with the collector.
SEE OR SEARCH CLASS:
238, Railways: Surface Track.
246, Railway Switches and Signals, subclass 9, 65, 67 and 69,
and indented subclasses.
Subclass:
30
This subclass is indented under subclass 29. Third rail
conductors provided with a more or less complete casing,
guard, or shield for preventing accidental contact with the
exposed conductor element.
SEE OR SEARCH CLASS:
238, Railways: Surface Track, subclass 379.
Subclass:
31
This subclass is indented under subclass 30. Third rail
conductors of the protected type wherein the place of entry
of the collector into the protecting casing is normally
obstructed by a movable closer, which is withdrawn as the
collector passes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
25
SEE OR SEARCH CLASS:
104, Railways, subclass 194.
Subclass:
32
This subclass is indented under subclass 29. Means for
holding the third rail conductor in operative position. It
generally involves an insulator.
SEE OR SEARCH THIS CLASS, SUBCLASS:
25
SEE OR SEARCH CLASS:
104, Railways, subclass 194.
Subclass:
33
This subclass is indented under subclass 22. Conductors
placed adjacent the vehicle path at such a height as to clear
persons and ordinary objects on the ground and presenting a
substantially continuous exposed surface for contact with the
collector.
(1) Note. The conductor element per se is generally
inherently flexible and is tensioned to present a rigid
contact surface.
SEE OR SEARCH CLASS:
104, Railways, subclass 124.
246, Railway Switches and Signals, subclass 9, 65, 67 and 69,
and indented subclasses.
Subclass:
34
This subclass is indented under subclass 33. Trolley
conductors wherein the collector contacts on some portion
other than or in addition to the under surface.
SEE OR SEARCH CLASS:
104, Railways, subclass 124.
Subclass:
35
This subclass is indented under subclass 33. Trolley
conductors provided with means such as cages, shields, etc.
for preventing the collector from leaving the conductor or
for replacing the collector if derailed or protecting the
conductor from deposits of ice, dust, etc.
Subclass:
36
This subclass is indented under subclass 33. Means at the
point of meeting of the trolley conductor with other
structures which allow the latter to function without
interfering with the operation of the conductor. Generally
involves the intersection of trolley conductors with
structures such as railway safety gates, doors, bridges,
roads, etc.
Subclass:
37
This subclass is indented under subclass 33. Structures at
the intersection of a plurality of separate trolley
conductors for guiding each conductor's collector across the
intersection and preventing it from being diverted to another
conductor.
SEE OR SEARCH CLASS:
246, Railway Switches and Signals, subclass 454, and indented
subclasses.
Subclass:
38
This subclass is indented under subclass 33. Trolley
conductor having modifications at the point of branching for
directing the collector to the selected branch. Includes the
combination of the track switch with the trolley switch.
SEE OR SEARCH CLASS:
186, Merchandising, subclass 19, and indented subclasses.
246, Railway Switches and Signals, subclass 415 and indented
subclasses.
Subclass:
39
This subclass is indented under subclass 33. Means for
interrupting the electrical continuity of the trolley
conductor while maintaining the uninterrupted mechanical path
of the collector.
SEE OR SEARCH CLASS:
238, Railways: Surface Track, subclass 152.
Subclass:
40
This subclass is indented under subclass 33. Means for
securing the trolley conductor in operative position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39
SEE OR SEARCH CLASS:
104, Railways, subclass 124 and 165, and indented
subclasses.
105, Railway Rolling Stock, subclass 141, and indented
subclasses and 148.
174, Electricity: Conductors and Insulators subclass 168
and indented subclasses for insulators with conductor holding
means.
200, Electricity: Circuit Makers and Breakers, subclass 79.
248, Supports, subclass 61 for means supported by, and
maintaining relative spacing between, longitudinal runs of an
endless, load-moving cable.
254, Implements or Apparatus for Applying Pushing or Pulling
Force, subclass 388 for means supported by, and maintaining
relative spacing between, longitudinal runs of an endless,
load-moving cable.
440, Marine Propulsion, subclasses 33+.
Subclass:
41
This subclass is indented under subclass 40. Means for
supporting the trolley conductor in a more or less straight
line, comprising a superposed supporting or "Messenger"
strand connected to the conductor by hangers. Includes
hangers, per se, modified for this use.
SEE OR SEARCH CLASS:
14, Bridges, subclass 18, and indented subclasses.
104, Railways, subclass 124.
Subclass:
42
This subclass is indented under subclass 40. Means connecting
the trolley conductor to the supporting insulator and
presenting an uninterrupted path to the collector, combined
with the supporting insulator.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 168,
and indented subclasses, for insulators with conductor
holding means.
Subclass:
43
This subclass is indented under subclass 40. Means connecting
the trolley conductor to the support and presenting an
uninterrupted path to the collector.
SEE OR SEARCH CLASS:
104, Railways, subclass 165, and indented subclasses.
174, Electricity: Conductors and Insulators, subclass 168,
and indented subclasses, for insulators with conductor
holding means.
Subclass:
44
This subclass is indented under subclass 43. Trolley
conductor having supporting ears adapted to join trolley
conductors meeting at the ear.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39
SEE OR SEARCH CLASS:
104, Railways, subclasses 165+
439, Electrical Connectors, appropriate subclasses for an
electrical connector, generally.
Subclass:
44.1
This subclass is indented under subclass 33. Splicers or
couplings for alined ends of electric trolley-wires.
(1) Note. See Class 403, Joints and Connections, subclasses
300+ for distinct end couplers not restricted to electrical
conductors.
Subclass:
45
This subclass is indented under the class definition. Subject
matter having the portion of the current communicating means
carried by the vehicle or body that moves, as distinguished
from that portion which is fixed in relation to the track or
pathway of the moving member.
SEE OR SEARCH CLASS:
75, Specialized Metallurgical Processes, Compositions for Use
Therein, Consolidated Metal Powder Compositions, and Loose
Metal Particulate Mixtures, subclass 229 for a composition
having a continuous phase of free metal made by consolidating
metal particles and which contains a flake or fibrous
constituent or has a fibrous grain structure.
200, Electricity: Circuit Makers and Breakers, generally.
246, Railway Switches and Signals, subclass 9, 65, 67, and
69+.
310, Electrical Generator or Motor Structure, subclasses 219+
for slip rings, commutators and other current collectors
for dynamoelectric devices.
Subclass:
46
This subclass is indented under subclass 45. Collectors
cooperating alternatively with a plurality of conductor
systems, such as trolley, third rail, conduit, etc.
(1) Note. Convertible collectors are unitary devices.
Systems are classified in this class, subclass 3.
Subclass:
47
This subclass is indented under subclass 45. Collectors
having longitudinally extensive contact surfaces to cooperate
with conductors which do not have a continuous contact
surface, but which present a series of separated contacts
spaced at less distance than the length of the collector
contact surfaces.
SEE OR SEARCH THIS CLASS, SUBCLASS:
15
Subclass:
48
This subclass is indented under subclass 45. Collectors for
cooperating with conductors placed beneath the surface of the
ground.
SEE OR SEARCH CLASS:
104, Railways, subclass 202, and indented subclasses.
Subclass:
49
This subclass is indented under subclass 45. Collectors for
cooperating with conductors placed substantially at the
surface of the ground.
SEE OR SEARCH CLASS:
104, Railways, subclass 202, and indented subclasses, and
279, and indented subclasses.
Subclass:
50
This subclass is indented under subclass 45. Collectors for
cooperating with conductors placed at a substantial distance
above the ground.
SEE OR SEARCH CLASS:
246, Railway Switches and Signals, subclass 9, 65, 67, and
69, and indented subclasses.
Subclass:
51
This subclass is indented under subclass 50. Trolley
collectors capable of passing one another on the same
conductor either by being outside each other's clearance line
or by riding one over the other.
SEE OR SEARCH CLASS:
104, Railways, subclass 53.
Subclass:
52
This subclass is indented under subclass 50. Trolley
collectors readily removable from the vehicle or other
movable body.
Subclass:
53
This subclass is indented under subclass 50. Trolley
collectors contacting on some portion of the conductor other
than its under side or on some portion in addition to the
under side.
SEE OR SEARCH THIS CLASS, SUBCLASS:
34
Subclass:
54
This subclass is indented under subclass 50. Under-running
trolley collectors presenting an extended contact
substantially at right angles to the conductor and not guided
laterally by the conductor.
Subclass:
55
This subclass is indented under subclass 54. Indefinite path
trolley collectors wherein the contact element slides on the
conductor. The contact may be a whip, bow, slide, etc.
Subclass:
56
This subclass is indented under subclass 54. Indefinite path
trolley collectors wherein the contact element is of the
roller type.
SEE OR SEARCH CLASS:
492, Roll or Roller, for a roll, per se, not elsewhere
provided for, and see the notes thereunder.
Subclass:
57
This subclass is indented under subclass 50. Trolley
collectors having a plurality of contact elements.
SEE OR SEARCH CLASS:
246, Railway Switches and Signals, subclass 65, and indented
subclass, 73 and 254.
Subclass:
58
This subclass is indented under subclass 57. Multiple contact
trolley collectors wherein the contact elements are arranged
to travel one in advance of the other on the same conductor.
Subclass:
59
This subclass is indented under subclass 50. That portion of
the collector of the ordinary under-running type that
includes the contact element, its mounting, and the securing
means between the contact mounting and the pole or other
supporting means.
(1) Note. Wheel mounts adapted for general application
although designed as mounts for trolley wheels, are
classified in Class 384, Bearings, subclasses 252+ and 429+
for bearing supports, e.g., mount for trolley wheel.
Subclass:
59.1
This subclass is indented under subclass 59. Devices wherein
the engaging part slides along the supply conductor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
50 55, 62, and 65.
SEE OR SEARCH CLASS:
75, Specialized Metallurgical Processes, Compositions for Use
Therein, Consolidated Metal Powder Compositions, and Loose
Metal Particulate Mixtures, subclass 229 for a composition
having a continuous phase of free metal made by consolidating
metal particles and which contains a flake or fibrous
constituent or has a fibrous grain structure.
Subclass:
60
This subclass is indented under subclass 59. Trolley heads
comprising a swivel, so that the contact element may follow
lateral curves of the conductor.
(1) Note. Compare Class 384, Bearings, subclasses 429+ for
bearing supports, or mounts.
Subclass:
60.1
This subclass is indented under subclass 60. Gravity, spring,
or electric devices constantly tending to maintain the
swiveled heads in normal or central position and to restore
them to such position if swung to either side.
SEE OR SEARCH THIS CLASS, SUBCLASS:
60.2
Subclass:
60.2
This subclass is indented under subclass 59. Devices wherein
the head or harp is pivotally or flexibly connected to the
trolley-pole to permit the head to swing transversely
relatively to the car and trolley-wire.
Subclass:
60.3
This subclass is indented under subclass 59. Devices wherein
the head or harp is pivotally or flexibly connected to the
trolley to permit the head to swing vertically toward or from
the trolley-wire.
Subclass:
60.4
This subclass is indented under subclass 59. Devices wherein
the shank of the head or harp has an axially slidable
connection with the trolley-pole, usually against
spring-pressure.
Subclass:
60.5
This subclass is indented under subclass 59. Releasable and
permanent fixtures for securing the head or harp to the
trolley-pole, not including yielding or pivotal connections,
which are found in this class, subclasses 60, 60.1, 60.2,
60.3, and 60.4.
Subclass:
61
This subclass is indented under subclass 59. Trolley heads
involving means for maintaining the electrical connection
between the wheel and its mounting, thus bridging possible
resistance in the bearings.
Subclass:
62
This subclass is indented under subclass 59. Means associated
with or modifications of the trolley head for the removal of
ice, sleet, or other accumulations on the conductor or for
the prevention of the formation of such accumulations
thereon.
(1) Note. Compare Classes 15, Brushing, Scrubbing, and
General Cleaning, subclass 3, and indented subclasses; 104,
Railways, subclass 279, and indented subclass, and 184,
Lubrication, subclasses 3.1+.
SEE OR SEARCH CLASS:
343, Communications: Radio Wave Antennas, subclass 704 for
antennas with an ice clearer or preventer.
Subclass:
63
This subclass is indented under subclass 59. Elements of
trolley heads making a rolling contact with the conductor and
providing a definite path for the conductor.
(1) Note. For similar wheel devices intended for general
use as pulleys, see Class 474, Endless Belt Power
Transmission Systems or Components, subclass 166 and indented
subclasses.
Subclass:
63.1
This subclass is indented under subclass 63. Articulated
sectional trolley-harps to permit the quick release of a
trolley-wheel.
Subclass:
63.2
This subclass is indented under subclass 63. The
trolley-wheel is mounted on an elongated pin or shaft to
permit the wheel to slide laterally while running on the
trolley-wire.
Subclass:
63.3
This subclass is indented under subclass 63. The
trolley-wheel is mounted in the harp or on a pin, so as to
permit free universal movement of the wheel.
Subclass:
63.4
This subclass is indented under subclass 63. The
supporting-pins for the trolley-harps are mounted so as to
permit up and down or rear and forward movement of the pins
in the harps.
Subclass:
63.5
This subclass is indented under subclass 63. Devices for
fastening trolley-wheel pins or axles in the trolley-harps.
Subclass:
64
This subclass is indented under subclass 50. That portion of
the trolley connecting the head to the stand or erecting
means.
Subclass:
65
This subclass is indented under subclass 64. Trolley poles
constituting a framed structure, generally a plurality of
simple poles braced together. Includes the "pantagraph"
trolley.
Subclass:
66
This subclass is indented under subclass 50. That part of the
trolley which connects the pole with the vehicle. Generally
includes means for allowing the pole to swing laterally or
swivel and means for erecting the pole or forcing it upward
toward the conductor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
85 and 86, and indented subclasses.
Subclass:
67
This subclass is indented under subclass 66. Trolley stands
wherein the erecting or operating force is due to fluid
pressure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
87 and 90.
Subclass:
68
This subclass is indented under subclass 66. Trolley stands
wherein the erecting or operating means is of the mechanical
spring type.
SEE OR SEARCH THIS CLASS, SUBCLASS:
85 and 86, and indented subclasses.
Subclass:
69
This subclass is indented under subclass 68. Trolley stands
of the spring type wherein the operating spring is of the
torsion type.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 85+ for operating springs of the torsion type.
SEE OR SEARCH CLASS:
248, Supports, subclasses 608+ for a resilient support
comprising a torsion bar or bushing.
Subclass:
70
This subclass is indented under subclass 68. Trolley stands
of the spring type wherein the operating spring is of the
tension or compression type.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 85+ for trolley retrievers with torsion type
operating springs.
Subclass:
71
This subclass is indented under subclass 50. Devices for
preventing moisture, rain, grease, etc., from flowing down
the operating rope of the trolley.
Subclass:
72
This subclass is indented under subclass 50. Means on the
vehicle associated or integral with the trolley and
cooperating with the conductor to prevent the trolley leaving
the conductor or to aid in its replacement.
(1) Note. The retaining means are not intended to aid
directly in the conduction of current.
(2) Note. Compare subclass 53, of this class.
Subclass:
73
This subclass is indented under subclass 72. Guards and
finders which are always operative. They have no inoperative
position.
Subclass:
74
This subclass is indented under subclass 73. Trolley guards
and finders of the constantly operative type having but one
position. They are fixed or immovable in reference to the
trolley.
Subclass:
75
This subclass is indented under subclass 73. Trolley guards
and finders of the constantly operative type consisting of
conical members placed at the side of the regular trolley
wheel and coaxial therewith. The surfaces of these cones are
provided with spiral grooves leading toward the regular
wheel, so that the displaced wire falling upon the conical
member will be carried back onto the wheel.
Subclass:
76
This subclass is indented under subclass 73. Trolley guards
and finders of the constantly operative type consisting of
star or rimless spoked wheels at the side of or forming part
of the regular trolley contactor, so that one arm or spoke of
the guard wheel is always in operative position.
Subclass:
77
This subclass is indented under subclass 72. Trolley guards
and finders normally held in operative position but capable
of being moved into an inoperative position.
Subclass:
78
This subclass is indented under subclass 77. Trolley guards
and finders of the normally operative type capable of being
automatically forced to the inoperative position by
obstructions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 79+
Subclass:
79
This subclass is indented under subclass 77. Trolley guards
and finders of the normally operative type capable of being
moved to the inoperative position by pulling on the trolley
rope or an auxiliary rope.
Subclass:
80
This subclass is indented under subclass 77. Trolley guards
and finders of the normally operative rope retracted type
wherein the guard or finder elements swing in planes
substantially transverse or normal to the conductor.
Subclass:
81
This subclass is indented under subclass 79. Guards and
finders of the normally operative rope retracted type wherein
the guard or finder elements swing in planes substantially
parallel to the conductor.
Subclass:
82
This subclass is indented under subclass 72. Trolley guards
and finders held in an inoperative position or out of the way
when the trolley occupies its normal position on the
conductor.
Subclass:
83
This subclass is indented under subclass 82. Trolley guards
and finders of the normally inoperative type which are
automatically moved into the guarding or fishing position
when the trolley leaves the conductor. Includes guards that
are operated by undue pressure upon the trolley contact.
Subclass:
84
This subclass is indented under subclass 82. Trolley guards
and finders of the normally inoperative type which are moved
into operative position by pulling on the trolley rope or an
auxiliary rope.
Subclass:
85
This subclass is indented under subclass 45. Trolley
modifications or attachments for trolleys for causing the
trolley to move downward, so as to avoid fouling the
conductor system when the trolley leaves the conductor.
Subclass:
86
This subclass is indented under subclass 85. Trolley
retrievers wherein the erecting force is released when the
trolley leaves the conductor, thus allowing the trolley to
drop.
Subclass:
87
This subclass is indented under subclass 86. Trolley
retrievers of the erector release type wherein the erecting
force of the trolley is fluid pressure, which pressure is
released when the trolley leaves the conductor, thus allowing
the trolley to drop.
Subclass:
88
This subclass is indented under subclass 86. Trolley
retrievers of the erector release type wherein the normally
tensioned erecting spring is rendered ineffective by a
shortening of its lever arm or is released when the trolley
leaves the conductor, thus allowing the trolley to drop.
Subclass:
89
This subclass is indented under subclass 88. Trolley
retrievers of the erector spring release type wherein the
erecting spring is normally tensioned by a toggle, which
toggle is broken when the trolley leaves the conductor, thus
allowing the trolley to drop.
Subclass:
90
This subclass is indented under subclass 85. Trolley
retrievers wherein there is a fluid pressure motor which
overcomes the erecting motor and retracts the trolley when it
leaves the conductor. The erecting motor may be of any
type--spring, weight, fluid, etc.
Subclass:
91
This subclass is indented under subclass 85. Trolley
retrievers wherein there is a spring motor which overcomes
the erecting motor and retracts the trolley, the holding or
restraining means of the retracting motor being tripped or
set in operation when the trolley leaves the conductor.
Subclass:
92
This subclass is indented under subclass 91. Trolley
retrievers of the spring retracted type wherein the spring
motor operates through the medium of the trolley rope and is
set in operation by the sudden acceleration of the latter
upon the trolley leaving the conductor.
Subclass:
93
This subclass is indented under subclass 92. Trolley
retrievers of the spring retracted rope actuated type wherein
the trolley rope is kept taut, but allowed to follow the
undulations of the conductor, and wherein the retracting
spring motor is set in immediate operation by the sudden
acceleration of the trolley rope upon the trolley leaving the
wire.
(1) Note. This means automatically cuts short the upward
spring of the trolley when it leaves the wire and rapidly
draws it downward to a position below the conductor.
Subclass:
94
This subclass is indented under subclass 85. Trolley
retrievers wherein the retracting motor comprises a suspended
weight whose restraining means is tripped or set in operation
upon the collector leaving the conductor. Includes the means
with or without slack take-up mechanism.
Subclass:
95
This subclass is indented under subclass 45. Collectors of
the trolley type provided with automatic mechanism operating
to stop the rise of the collector upon its leaving the
conductor. The trolley is merely prevented from rising; it
is not retracted. When the device acts through the agency of
the trolley-rope, it is generally provided with a slack
take-up.
SEE OR SEARCH THIS CLASS, SUBCLASS:
93
SEE OR SEARCH CLASS:
160, Flexible or Portable Closure, Partition, or Panel,
subclass 291 and indented subclasses.
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