1. CPC Sections
  2. CPC Section B
  3. CPC Class B61
  4. CPC Subclass B61L
Printable version [PDF]
Version: 2025.01
Loading Scheme...
CPC
COOPERATIVE PATENT CLASSIFICATION
B61L
GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC (brakes or auxiliary equipment B61H, B61K; point or crossing construction E01B) [2024-01]
B61L 1/00
Devices along the route controlled by interaction with the vehicle or train (detonators B61L 5/20; operation of points or signals by passage of the vehicle B61L 11/00, B61L 13/00; operation of gates, or gates and signals, by approaching vehicle B61L 29/18) [2024-01]
B61L 1/02
.
Electric devices associated with track {, e.g. rail contacts} [2016-08]
B61L 1/025
. .
{actuated by variation of resistance or by piezoelectricity} [2023-08]
B61L 1/04
. .
mechanically actuated by a part of the vehicle [2013-01]
B61L 1/045
. . .
{actuated by fluid-pressure} [2013-01]
B61L 1/06
. .
actuated by deformation of rail; actuated by vibration in rail [2013-01]
B61L 1/08
. .
magnetically actuated; electrostatically actuated [2013-01]
B61L 1/10
. .
actuated by electromagnetic radiation; actuated by particle radiation [2013-01]
B61L 1/12
.
Electric devices associated with overhead trolley wires [2013-01]
B61L 1/14
.
Devices for indicating the passing of the end of the vehicle or train [2024-01]
B61L 1/16
.
Devices for counting axles; Devices for counting vehicles [2024-01]
B61L 1/161
. .
{characterised by the counting methods} [2013-01]
B61L 1/162
. .
{characterised by the error correction} [2013-01]
B61L 1/163
. .
{Detection devices} [2013-01]
B61L 1/164
. . .
{Mechanical} [2013-01]
B61L 1/165
. . .
{Electrical} [2013-01]
B61L 1/166
. . .
{Optical} [2013-01]
B61L 1/167
. .
{Circuit details} [2013-01]
B61L 1/168
. .
{Specific transmission details} [2013-01]
B61L 1/169
. .
{Diagnosis} [2013-01]
B61L 1/18
.
Railway track circuits (rail joints E01B 11/00, e.g. insulated rail joints E01B 11/54) [2024-01]
B61L 1/181
. .
{Details} [2013-01]
B61L 1/182
. . .
{Use of current of indifferent sort or a combination of different current types} [2013-01]
B61L 1/183
. . . .
{Use of means on the vehicle for improving short circuit, e.g. in vehicles with rubber bandages} [2016-08]
B61L 1/184
. . . .
{Use of additional conductors for examining leakages between rails} [2013-01]
B61L 1/185
. . .
{Use of direct current} [2013-01]
B61L 1/186
. . .
{Use of rectified alternating current} [2013-01]
B61L 1/187
. . .
{Use of alternating current} [2013-01]
B61L 1/188
. . .
{Use of coded current} [2013-01]
B61L 1/20
.
Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning [2024-01]
B61L 3/00
Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal [2024-01]
B61L 3/02
.
at selected places along the route, e.g. intermittent control {simultaneous mechanical and electrical control} [2013-01]
B61L 3/04
. .
controlling mechanically {(arrangements of making elements acting directly on tread B60T 1/04)} [2013-01]
B61L 3/06
. .
controlling by electromagnetic or particle radiation, e.g. by light beam [2024-01]
B61L 3/065
. . .
{controlling optically} [2013-01]
B61L 3/08
. .
controlling electrically [2013-01]
B61L 3/10
. . .
using current passing between devices along the route and devices on the vehicle or train [2024-01]
B61L 3/103
. . . .
{Details of current transmitting conductors or contact brushes} [2013-01]
B61L 3/106
. . . .
{with mechanically controlled electrical switch on the vehicle} [2013-01]
B61L 3/12
. . .
using magnetic or electrostatic induction; using radio waves [2013-01]
B61L 3/121
. . . .
{using magnetic induction} [2013-01]
B61L 2003/122
. . . . .
{German standard for inductive train protection, called "Induktive Zugsicherung"[INDUSI]} [2013-01]
B61L 2003/123
. . . . .
{French standard for inductive train protection, called "Contrôle de vitesse par balises" [KVB]} [2013-01]
B61L 3/125
. . . .
{using short-range radio transmission} [2024-01]
B61L 3/126
. . . .
{Constructional details} [2013-01]
B61L 3/127
. . . .
{for remote control of locomotives (remote control of locomotives within a train consist B61C 17/12)} [2013-01]
B61L 3/128
. . . .
{for control of tilting trains by external control devices, e.g. by Eurobalise (tilting details B61F 5/22)} [2013-01]
B61L 3/14
. .
to cut-off the power supply to traction motors of electrically-propelled vehicles [2013-01]
B61L 3/16
.
Continuous control along the route [2013-01]
B61L 3/18
. .
using electric current passing between devices along the route and devices on the vehicle or train [2024-01]
B61L 3/185
. . .
{using separate conductors} [2013-01]
B61L 3/20
. . .
employing different frequencies or coded pulse groups {, e.g. using currents carried by traction current} [2024-01]
B61L 3/22
. .
using magnetic or electrostatic induction; using electromagnetic radiation [2013-01]
B61L 3/221
. . .
{using track circuits} [2013-01]
B61L 3/222
. . . .
{Arrangements on the track only} [2013-01]
B61L 2003/223
. . . .
{French cab signaling system, called "Transmission Voie-Machine" [TVM]} [2013-01]
B61L 3/225
. . .
{using separate conductors along the route} [2013-01]
B61L 2003/226
. . . .
{German inductive continuous train control, called 'Linienzugbeeinflussung' [LZB]} [2013-01]
B61L 3/227
. . .
{using electromagnetic radiation} [2013-01]
B61L 2003/228
. . .
{Constructional details} [2013-01]
B61L 3/24
. . .
employing different frequencies or coded pulse groups {, e.g. in combination with track circuits} [2016-08]
B61L 3/243
. . . .
{using alternating current} [2013-01]
B61L 3/246
. . . .
{using coded current} [2013-01]
B61L 5/00
Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals (B61L 11/00 takes precedence) [2024-01]
B61L 5/02
.
Mechanical devices for operating points or scotch-blocks {, e.g. local manual control} [2016-08]
B61L 5/023
. .
{using funicular driving means} [2013-01]
B61L 5/026
. .
{fixing switch-rails to the driving means} [2013-01]
B61L 5/04
.
Fluid-pressure devices for operating points or scotch-blocks [2013-01]
B61L 5/045
. .
{using electrically controlled fluid-pressure operated driving means} [2013-01]
B61L 5/06
.
Electric devices for operating points or scotch-blocks {, e.g. using electromotive driving means} [2016-08]
B61L 5/062
. .
{Wiring diagrams} [2013-01]
B61L 5/065
. .
{Construction of driving mechanism} [2013-01]
B61L 5/067
. .
{using electromagnetic driving means} [2013-01]
B61L 5/08
.
Underground actuating arrangements, e.g. for tramways [2013-01]
B61L 5/10
.
Locking mechanisms for points; Means for indicating the setting of points [2013-01]
B61L 5/102
. .
{Controlling electrically} [2013-01]
B61L 5/105
. .
{Controlling funicularly} [2013-01]
B61L 5/107
. .
{electrical control of points position} [2013-01]
B61L 5/12
.
Visible signals [2024-01]
B61L 5/125
. .
{Fixed signals, beacons, or the like} [2013-01]
B61L 5/14
. .
Form signals, e.g. semaphore arms [2024-01]
B61L 5/16
. . .
Local operating mechanisms for form signals [2013-01]
B61L 5/161
. . . .
{using electromotive driving means} [2013-01]
B61L 5/162
. . . . .
{Wiring diagrams} [2013-01]
B61L 5/163
. . . . .
{Driving mechanisms} [2013-01]
B61L 5/165
. . . .
{using electromagnetic driving means} [2013-01]
B61L 5/166
. . . .
{using electrically controlled gravity operated driving means} [2013-01]
B61L 5/167
. . . .
{using electrically controlled fluid-pressure operated driving means} [2013-01]
B61L 5/168
. . . .
{using funicular driving means} [2013-01]
B61L 5/18
. .
Light signals; Mechanisms associated therewith, e.g. blinders [2013-01]
B61L 5/1809
. . .
{Daylight signals} [2013-01]
B61L 5/1818
. . . .
{using mobile coloured screen} [2013-01]
B61L 5/1827
. . . .
{using light sources of different colours and a common optical system} [2013-01]
B61L 5/1836
. . . .
{using light sources of different colours and separate optical systems} [2017-05]
B61L 5/1845
. . . .
{Optical systems, lenses} [2013-01]
B61L 5/1854
. . . .
{Mounting and focussing of the light source in a lamp, fixing means} [2018-02]
B61L 5/1863
. . . .
{Lamp mountings on a mast} [2013-01]
B61L 5/1872
. . . .
{Mobile mounting arrangements on a mast; Arrangements for hoisting of the lamp along the mast} [2013-01]
B61L 5/1881
. . . .
{Wiring diagrams for power supply, control or testing} [2013-01]
B61L 5/189
. . .
{using flashing light sources} [2024-01]
B61L 5/20
.
Audible signals, e.g. detonator {audible signalling} [2013-01]
B61L 5/203
. .
{Detonators; Track mounting means; Composition of the detonative product} [2013-01]
B61L 5/206
. .
{Signalling means for special purposes} [2013-01]
B61L 5/22
. .
Devices for initiating the release of detonators in a certain position of a signal [2013-01]
B61L 5/24
. .
Replacement of detonators [2013-01]
B61L 7/00
Remote control of local operating means for points, signals, or track-mounted scotch-blocks (B61L 11/00, B61L 13/00 take precedence; interlocking arrangements B61L 19/00) [2024-01]
B61L 7/02
.
using mechanical transmission, e.g. wire, lever [2024-01]
B61L 7/021
. .
{Driving wheels or supports for traction wires} [2013-01]
B61L 7/022
. .
{Guiding means or supporting foundations in beton} [2013-01]
B61L 7/024
. .
{Coupling for wires or traction bars} [2013-01]
B61L 7/025
. .
{Bracing or compensating arrangements} [2013-01]
B61L 7/027
. .
{Control levers} [2013-01]
B61L 7/028
. .
{Indicating or fixing arrangements in the event of breaking or tension difference of transmission wires for points, signals or similar} [2013-01]
B61L 7/04
.
using fluid-pressure transmission [2017-08]
B61L 7/06
.
using electrical transmission [2013-01]
B61L 7/061
. .
{using electromotive driving means} [2013-01]
B61L 7/062
. . .
{Wiring diagrams} [2013-01]
B61L 7/063
. . .
{Construction of driving mechanism} [2013-01]
B61L 7/065
. .
{using electromagnetic driving means} [2013-01]
B61L 7/066
. .
{using electrically controlled fluid-pressure operated driving means} [2013-01]
B61L 7/067
. .
{Supply for electric safety arrangements} [2013-01]
B61L 7/068
. .
{Protection against eddy-currents, short-circuits, or the like, for electric safety arrangements} [2013-01]
B61L 7/08
. .
Circuitry [2013-01]
B61L 7/081
. . .
{Direct line wire control} [2013-01]
B61L 7/083
. . .
{Common line wire control using currents of different amplitudes, polarities, frequencies, or the like} [2013-01]
B61L 7/085
. . .
{Common line wire control using synchronous distributors} [2013-01]
B61L 7/086
. . .
{Common line wire control using relay distributors} [2013-01]
B61L 7/088
. . .
{Common line wire control using series of coded pulses} [2013-01]
B61L 7/10
. . .
for light signals, e.g. for supervision, back-signalling [2013-01]
B61L 7/103
. . . .
{Electric control of the setting of signals} [2013-01]
B61L 7/106
. . . . .
{for form signals} [2013-01]
B61L 9/00
Illumination specially adapted for points, form signals, or gates [2024-01]
B61L 9/02
.
non-electric [2013-01]
B61L 9/04
.
electric [2013-01]
B61L 11/00
Operation of points from the vehicle or by the passage of the vehicle [2013-01]
B61L 11/02
.
using mechanical interaction between vehicle and track [2017-08]
B61L 11/04
. .
Trailable point locks [2013-01]
B61L 11/06
. .
with fluid-pressure transmission [2013-01]
B61L 11/08
.
using electrical or magnetic interaction between vehicle and track [2013-01]
B61L 11/083
. .
{Magnetic control} [2013-01]
B61L 2011/086
. .
{German radio based operations, called "Funkfahrbetrieb" [FFB]} [2013-01]
B61L 13/00
Operation of signals from the vehicle or by the passage of the vehicle [2013-01]
B61L 13/002
.
{actuated by the passage of the vehicle} [2013-01]
B61L 13/005
.
{optically actuated} [2013-01]
B61L 13/007
.
{acoustically actuated} [2013-01]
B61L 13/02
.
using mechanical interaction between vehicle and track [2024-01]
B61L 13/04
.
using electrical or magnetic interaction between vehicle and track {, e.g. by conductor circuits using special means or special conductors} [2016-08]
B61L 13/042
. .
{using isolated rail sections} [2013-01]
B61L 13/045
. .
{using separated rail contacts, pedals or similar (B61L 1/02 takes precedence)} [2013-01]
B61L 13/047
. .
{controlling inductively or magnetically} [2013-01]
B61L 15/00
Indicators provided on the vehicle or train for signalling purposes [2024-01]
B61L 15/0009
.
{wiring diagrams for start- or stop-signals on vehicles having one or more carriages and having electrical communication lines between the carriages} [2013-01]
B61L 15/0018
.
{Communication with or on the vehicle or train} [2024-01]
B61L 15/0027
. .
{Radio-based, e.g. using GSM-R} [2013-01]
B61L 15/0036
. .
{Conductor-based, e.g. using CAN-Bus, train-line or optical fibres} [2013-01]
B61L 15/0045
.
{Destination indicators, identification panels or distinguishing signs on the vehicles} [2024-01]
B61L 15/0054
.
{Train integrity supervision, e.g. end-of-train [EOT] devices} [2013-01]
B61L 15/0058
.
{On-board optimisation of vehicle or vehicle train operation} [2024-01]
B61L 15/0062
.
{On-board target speed calculation or supervision} [2024-01]
B61L 15/0063
.
{Multiple on-board control systems, e.g. "2 out of 3"-systems} [2024-01]
B61L 15/0072
.
{On-board train data handling} [2024-01]
B61L 15/0081
.
{On-board diagnosis or maintenance} [2024-01]
B61L 15/009
.
{On-board display devices} [2013-01]
B61L 15/0092
.
{Memory means reproducing during the running of the vehicle or vehicle train, e.g. smart cards} [2024-01]
B61L 15/0094
.
{Recorders on the vehicle} [2024-01]
B61L 15/02
.
Head or tail indicators, e.g. light [2013-01]
B61L 17/00
Switching systems for classification yards [2024-01]
B61L 17/02
.
Details, e.g. indicating degree of track filling [2013-01]
B61L 17/023
. .
{Signalling; Signals with multiple indicating means} [2013-01]
B61L 17/026
. .
{Brake devices} [2013-01]
B61L 19/00
Arrangements for interlocking between points and signals by means of a single interlocking device {, e.g. central control} [2024-01]
B61L 19/02
.
Interlocking devices having mechanical or fluid-pressure operation [2013-01]
B61L 19/023
. .
{purely mechanical (control levers B61L 7/027)} [2013-01]
B61L 19/026
. .
{using fluid-pressure operated points or signals} [2013-01]
B61L 19/04
. .
Details, e.g. hand lever, back-signalling device [2024-01]
B61L 19/06
.
Interlocking devices having electrical operation [2013-01]
B61L 2019/065
. .
{with electronic means} [2013-01]
B61L 19/08
. .
Special arrangements for power supply for interlocking devices [2013-01]
B61L 19/10
. .
with mechanical locks [2013-01]
B61L 19/12
. . .
Details [2013-01]
B61L 19/14
. .
with electrical locks [2013-01]
B61L 19/16
. . .
Details [2013-01]
B61L 21/00
Station blocking between signal boxes in one yard [2024-01]
B61L 21/02
.
Mechanical locking and release of the route; Repeat locks; Coupling of semaphores [2013-01]
B61L 21/04
.
Electrical locking and release of the route; Electrical repeat locks [2024-01]
B61L 21/06
.
Vehicle-on-line indication; Monitoring locking and release of the route [2013-01]
B61L 21/065
. .
{for signals, including signals actuated by the vehicle} [2013-01]
B61L 21/08
.
Order transmission and reception arrangements for giving or withholding permission [2013-01]
B61L 21/10
.
Arrangements for trains which are closely following one another [2024-01]
B61L 23/00
Control, warning or like safety means along the route or between vehicles or trains [2024-01]
B61L 23/002
.
{Control or safety means for heart-points and crossings of aerial railways, funicular rack-railway} [2024-01]
B61L 23/005
. .
{Automatic control or safety means for points for operator-less railway, e.g. transportation systems} [2013-01]
B61L 23/007
.
{Safety arrangements on railway crossings} [2013-01]
B61L 23/02
.
for indicating along the route the failure of brakes [2013-01]
B61L 23/04
.
for monitoring the mechanical state of the route [2013-01]
B61L 23/041
. .
{Obstacle detection} [2013-01]
B61L 23/042
. .
{Track changes detection} [2013-01]
B61L 23/044
. . .
{Broken rails} [2013-01]
B61L 23/045
. . .
{Rail wear} [2013-01]
B61L 23/047
. . .
{Track or rail movements} [2013-01]
B61L 23/048
. . .
{Road bed changes, e.g. road bed erosion} [2013-01]
B61L 23/06
.
for warning men working on the route [2013-01]
B61L 23/08
.
for controlling traffic in one direction only [2024-01]
B61L 23/10
. .
manually operated {, e.g. block arrangements} [2016-08]
B61L 23/12
. .
partly operated by train [2013-01]
B61L 23/14
. .
automatically operated [2013-01]
B61L 23/16
. . .
Track circuits specially adapted for section blocking [2013-01]
B61L 23/161
. . . .
{using current of indifferent sorte or a combination of different current types} [2013-01]
B61L 23/163
. . . .
{using direct current} [2013-01]
B61L 23/165
. . . .
{using rectified alternating current} [2013-01]
B61L 23/166
. . . .
{using alternating current} [2013-01]
B61L 23/168
. . . .
{using coded current} [2013-01]
B61L 23/18
. . .
specially adapted for changing lengths of track sections in dependence upon speed and traffic density [2013-01]
B61L 23/20
. . .
with transmission of instructions to stations along the route [2013-01]
B61L 23/22
.
for controlling traffic in two directions over the same pair of rails [2024-01]
B61L 23/24
. .
using token systems, e.g. train staffs, tablets [2013-01]
B61L 23/26
. .
with means for actuating signals from the vehicle or by passage of the vehicle [2013-01]
B61L 23/28
. .
using non-automatic blocking from a place along the route [2013-01]
B61L 23/30
. .
using automatic section blocking [2013-01]
B61L 23/32
. . .
with provision for the blocking of passing sidings [2024-01]
B61L 23/34
.
for indicating the distance between vehicles or trains by the transmission of signals therebetween [2024-01]
B61L 25/00
Recording or indicating positions or identities of vehicles or trains or setting of track apparatus [2024-01]
B61L 25/02
.
Indicating or recording positions or identities of vehicles or trains [2024-01]
B61L 25/021
. .
{Measuring and recording of train speed} [2013-01]
B61L 25/023
. .
{Determination of driving direction of vehicle or train} [2024-01]
B61L 25/025
. .
{Absolute localisation, e.g. providing geodetic coordinates} [2013-01]
B61L 25/026
. .
{Relative localisation, e.g. using odometer} [2013-01]
B61L 25/028
. .
{Determination of vehicle position and orientation within a train consist, e.g. serialisation} [2013-01]
B61L 25/04
. .
Indicating or recording train identities [2013-01]
B61L 25/041
. . .
{using reflecting tags} [2013-01]
B61L 25/043
. . .
{using inductive tags} [2013-01]
B61L 25/045
. . .
{using reradiating tags} [2013-01]
B61L 25/046
. . .
{using magnetic tags} [2013-01]
B61L 25/048
. . .
{using programmable tags} [2013-01]
B61L 25/06
.
Indicating or recording the setting of track apparatus, e.g. of points, of signals [2013-01]
B61L 25/065
. .
{for signalling systems on the vehicle using current conduction} [2013-01]
B61L 25/08
. .
Diagrammatic displays [2013-01]
B61L 27/00
Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor [2022-01]
B61L 27/02
.
Manual systems [2013-01]
​
B61L 27/04
.
Automatic systems, e.g. controlled by train; Change-over to manual control [2024-01]
WARNING

  • Group B61L 27/04 is impacted by reclassification into group B61L 99/002.
    All groups listed in this Warning should be considered in order to perform a complete search.
B61L 27/10
.
Operations, e.g. scheduling or time tables [2022-01]
B61L 27/12
. .
Preparing schedules [2022-01]
B61L 27/14
. .
Following schedules [2022-01]
B61L 27/16
. .
Trackside optimisation of vehicle or train operation [2024-01]
B61L 27/18
. .
Crew rosters; Itineraries [2022-01]
B61L 27/20
.
Trackside control of safe travel of vehicle or train, e.g. braking curve calculation [2024-01]
B61L 2027/202
. .
{using European Train Control System [ETCS]} [2022-01]
B61L 2027/204
. .
{using Communication-based Train Control [CBTC]} [2022-01]
B61L 27/30
.
Trackside multiple control systems, e.g. switch-over between different systems [2022-01]
B61L 27/33
. .
Backup systems, e.g. switching when failures occur [2022-01]
B61L 27/37
. .
Migration, e.g. parallel installations running simultaneously [2022-01]
B61L 27/40
.
Handling position reports or trackside vehicle data [2022-01]
B61L 27/50
.
Trackside diagnosis or maintenance, e.g. software upgrades [2022-01]
B61L 27/53
. .
for trackside elements or systems, e.g. trackside supervision of trackside control system conditions [2022-01]
B61L 27/57
. .
for vehicles or trains, e.g. trackside supervision of train conditions [2024-01]
B61L 27/60
.
Testing or simulation [2022-01]
B61L 27/70
.
Details of trackside communication [2022-01]
B61L 29/00
Safety means for rail/road crossing traffic [2013-01]
B61L 29/02
.
Guards or obstacles for preventing access to the route (cattle guards connected to the permanent way E01B 17/00) [2013-01]
B61L 29/023
. .
{Special gates} [2013-01]
B61L 29/026
. . .
{Preventing access by means of obstacles raising across the route} [2013-01]
B61L 29/04
.
Gates for level crossings [2013-01]
B61L 29/06
. .
yielding to vehicles in one direction but operated in a different direction [2013-01]
B61L 29/08
.
Operation of gates; Combined operation of gates and signals [2013-01]
B61L 29/10
. .
Means for securing gates in their desired position [2013-01]
B61L 29/12
. .
Manual operation [2013-01]
B61L 29/14
. . .
mechanically [2013-01]
B61L 29/16
. . .
electrically [2013-01]
B61L 29/18
. .
Operation by approaching rail vehicle or train [2024-01]
B61L 29/20
. . .
mechanically [2013-01]
B61L 29/22
. . .
electrically [2013-01]
B61L 29/222
. . . .
{using conductor circuits with separate contacts or conductors} [2013-01]
B61L 29/224
. . . . .
{using rail contacts} [2013-01]
B61L 29/226
. . . .
{using track-circuits, closed or short-circuited by train or using isolated rail-sections} [2013-01]
B61L 29/228
. . . .
{using optical means} [2013-01]
B61L 29/24
.
Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning [2013-01]
B61L 29/243
. .
{Transmission mechanism or acoustical signals for gates} [2013-01]
B61L 29/246
. .
{Signals or brake- or lighting devices mounted on the road vehicle and controlled from the vehicle or train} [2024-01]
B61L 29/26
. .
mechanically operated [2013-01]
B61L 29/28
. .
electrically operated [2013-01]
B61L 29/282
. . .
{magnetic or inductive control by the vehicle} [2013-01]
B61L 29/284
. . .
{using rail-contacts, rail microphones, or the like, controlled by the vehicle} [2013-01]
B61L 29/286
. . .
{using conductor circuits controlled by the vehicle} [2013-01]
B61L 29/288
. . .
{Wiring diagram of the signal control circuits} [2013-01]
B61L 29/30
. . .
Supervision, e.g. monitoring arrangements [2013-01]
B61L 29/32
. . .
Timing, e.g. advance warning of approaching train [2013-01]
​
B61L 99/00
Subject matter not provided for in other groups of this subclass [2024-01]
WARNING

  • Group B61L 99/00 is impacted by reclassification into group B61L 99/002.
    All groups listed in this Warning should be considered in order to perform a complete search.
​
B61L 99/002
.
{Autonomous vehicles, i.e. under distributed traffic control} [2024-01]
WARNING

  • Group B61L 99/002 is incomplete pending reclassification of documents from groups B61L 27/04 and B61L 99/00.
    All groups listed in this Warning should be considered in order to perform a complete search.
Indexing scheme associated with groups B61L 1/00 – B61L 99/00 relating to control methods, communication or navigation systems for railway traffic, features of light signals or vehicle systems. [2024-01]
B61L 2201/00
Control methods [2013-01]
B61L 2201/02
.
Fuzzy control [2013-01]
B61L 2205/00
Communication or navigation systems for railway traffic [2013-01]
B61L 2205/02
.
Global system for mobile communication - railways [GSM-R] [2024-01]
B61L 2205/04
.
Satellite based navigation systems, e.g. global positioning system [GPS] [2024-01]
B61L 2207/00
Features of light signals [2013-01]
B61L 2207/02
.
using light-emitting diodes [LEDs] [2024-01]
B61L 2210/00
Vehicle systems [2013-01]
B61L 2210/02
.
Single autonomous vehicles [2013-01]
B61L 2210/04
.
Magnetic elevation vehicles [maglev] [2024-01]