Use of alternating current

Industry

CPC
B61L1/187

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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B61Railways B61LGUIDING RAILWAY TRAFFIC ENSURING THE SAFETY OF RAILWAY TRAFFIC B61L1/00Devices along the route controlled by interaction with the vehicle or vehicle train

Current Industry

B61L1/187Use of alternating current

Industries

Patents Grantslast 30 patents

Information Patent Grant
Broken rail detector
- Patent number 11,975,750
- Issue date May 7, 2024
- Athena Industrial Technologies Inc.
- Paul D. Gies
- B61 - RAILWAYS
Information Patent Grant
Track circuit with continued distance monitoring and broken rail pr...
- Patent number 11,866,076
- Issue date Jan 9, 2024
- SIEMENS MOBILITY, INC.
- Holger Schmidt
- B61 - RAILWAYS
Information Patent Grant
Grade crossing control system
- Patent number 11,827,260
- Issue date Nov 28, 2023
- SIEMENS MOBILITY, INC.
- Mark Corbo
- B61 - RAILWAYS
Information Patent Grant
System and method for detecting a break in a railway track
- Patent number 11,130,509
- Issue date Sep 28, 2021
- RUMO SA
- Márcio do Nascimento Machado
- B61 - RAILWAYS
Information Patent Grant
Rail fracture detection device
- Patent number 10,946,879
- Issue date Mar 16, 2021
- Mitsubishi Electric Corporation
- Masashi Asuka
- B61 - RAILWAYS
Information Patent Grant
System and method for detecting the presence of a train on a railwa...
- Patent number 10,773,738
- Issue date Sep 15, 2020
- ALSTOM TRANSPORT TECHNOLOGIES
- Giovanni Lanteri
- B61 - RAILWAYS
Information Patent Grant
Railroad track circuit for determining the occupancy status of a po...
- Patent number 10,427,700
- Issue date Oct 1, 2019
- ALSTOM TRANSPORT TECHNOLOGIES
- Nicholas Nagrodsky
- B61 - RAILWAYS
Information Patent Grant
Track circuit mechanical joint integrity checker
- Patent number 10,093,329
- Issue date Oct 9, 2018
- Pier Alessandro Aisa
- B61 - RAILWAYS
Information Patent Grant
Railroad track circuits
- Patent number 10,029,717
- Issue date Jul 24, 2018
- Vossloh Signaling USA, Inc.
- John Cippollone
- B61 - RAILWAYS
Information Patent Grant
Track circuit power supply vital monitor
- Patent number 9,821,823
- Issue date Nov 21, 2017
- ALSTOM Transport Technologies
- Pier Alessandro Aisa
- B61 - RAILWAYS
Information Patent Grant
Systems and methods for determining whether a transportation track...
- Patent number 9,290,190
- Issue date Mar 22, 2016
- Jeffrey Koval
- B61 - RAILWAYS
Information Patent Grant
Wireless and/or wired frequency programmable termination shunts
- Patent number 9,248,848
- Issue date Feb 2, 2016
- Siemens Industry, Inc.
- Brian Hogan
- B61 - RAILWAYS
Information Patent Grant
Device for detecting the occupied or available status of a track se...
- Patent number 9,139,211
- Issue date Sep 22, 2015
- Siemens Aktiengesellschaft
- Gerald Lude
- B61 - RAILWAYS
Information Patent Grant
Method for detecting the extent of clear, intact track near a railw...
- Patent number 9,102,341
- Issue date Aug 11, 2015
- Transportation Technology Center, Inc.
- Jerome J. Malone
- B61 - RAILWAYS
Information Patent Grant
Devices for detecting the occupied state or the free state of a tra...
- Patent number 8,613,410
- Issue date Dec 24, 2013
- Siemens Aktiengesellschaft
- Peer Bohlmann
- B61 - RAILWAYS
Information Patent Grant
Train detector and train security device for dual gauge track circuit
- Patent number 8,505,855
- Issue date Aug 13, 2013
- Hitachi, Ltd.
- Kenji Kikuchi
- B61 - RAILWAYS
Information Patent Grant
Track circuit
- Patent number 8,387,925
- Issue date Mar 5, 2013
- Alstom Ferroviaria S.p.A
- Pier Alessandro Aisa
- B61 - RAILWAYS
Information Patent Grant
Foreign track current suppression system and method
- Patent number 8,376,286
- Issue date Feb 19, 2013
- General Electric Company
- Larry J. Anderson
- B61 - RAILWAYS
Information Patent Grant
Digital train system for automatically detecting trains approaching...
- Patent number 7,254,467
- Issue date Aug 7, 2007
- General Electric Company
- Jeff Fries
- B61 - RAILWAYS
Information Patent Grant
Railway track circuits
- Patent number 5,470,034
- Issue date Nov 28, 1995
- Westinghouse Brake & Signal Holding Ltd.
- Malcolm Reeves
- B61 - RAILWAYS
Information Patent Grant
Railway track circuits
- Patent number 5,330,135
- Issue date Jul 19, 1994
- Westinghouse Brake and Signal Holdings Ltd.
- Richard J. Roberts
- B61 - RAILWAYS
Information Patent Grant
Device for the protection of track relays from electrical disturbances
- Patent number 5,094,413
- Issue date Mar 10, 1992
- Bailey Esacontrol S.p.A.
- Paolo Ripamonti
- B61 - RAILWAYS
Information Patent Grant
Combination frequency loop coupling for railway track signalling
- Patent number 4,878,638
- Issue date Nov 7, 1989
- General Signal Corporation
- James R. Hoelscher
- B61 - RAILWAYS
Information Patent Grant
Method and apparatus for identifying the components of a signal
- Patent number 4,777,605
- Issue date Oct 11, 1988
- Westinghouse Brake and Signal Company Limited
- Simon D. J. Pilkington
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Fail-safe voltage-limiting circuit for an audio frequency overlay t...
- Patent number 4,645,148
- Issue date Feb 24, 1987
- American Standard Inc.
- Dick J. Kolkman
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Track circuit for AC electrified railways
- Patent number 4,622,522
- Issue date Nov 11, 1986
- Compagne de Signaux et d'Entreprises Electriques
- Gilbert Alt
- B61 - RAILWAYS
Information Patent Grant
Device for detecting the unbalance between the two fractions of the...
- Patent number 4,575,031
- Issue date Mar 11, 1986
- Sasib S.p.A.
- Antonio Lazzari
- B61 - RAILWAYS
Information Patent Grant
Vital track circuit wheel detector
- Patent number 4,570,882
- Issue date Feb 18, 1986
- General Signal Corporation
- Klaus H. Frielinghaus
- B61 - RAILWAYS
Information Patent Grant
Vital solid state relay for railroad alternating current track circ...
- Patent number 4,535,959
- Issue date Aug 20, 1985
- American Standard Inc.
- Heinz Gilcher
- B61 - RAILWAYS
Information Patent Grant
Coupling for inducing a current in the rails of a railroad track
- Patent number 4,449,685
- Issue date May 22, 1984
- Jeumont Schneider Corporation
- Jean P. Salmon
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
BROKEN RAIL DETECTOR
- Publication number 20240278815
- Publication date Aug 22, 2024
- Athena Industrial Technologies Inc.
- Paul D. Gies
- B61 - RAILWAYS
Information Patent Application
DEVICE, SYSTEM AND METHOD FOR MONITORING CONDITIONS ON A RAILWAY TRACK
- Publication number 20220111878
- Publication date Apr 14, 2022
- HISWAY LABS (PTY) LTD
- Franz Antony STRUWIG
- B61 - RAILWAYS
Information Patent Application
TRACK CIRCUIT WITH CONTINUED DISTANCE MONITORING AND BROKEN RAIL PR...
- Publication number 20210139059
- Publication date May 13, 2021
- Siemens Industry, Inc.
- Holger Schmidt
- B61 - RAILWAYS
Information Patent Application
GRADE CROSSING CONTROL SYSTEM
- Publication number 20210053598
- Publication date Feb 25, 2021
- Siemens Mobility, Inc.
- Mark Corbo
- B61 - RAILWAYS
Information Patent Application
SYSTEM AND METHOD FOR DETECTING A BREAK IN A RAILWAY TRACK
- Publication number 20190193762
- Publication date Jun 27, 2019
- Rumo Logística Operadora Multimodal S.A.
- Márcio do Nascimento Machado
- G01 - MEASURING TESTING
Information Patent Application
SYSTEM AND METHOD FOR DETECTING THE PRESENCE OF A TRAIN ON A RAILWA...
- Publication number 20180281830
- Publication date Oct 4, 2018
- ALSTOM TRANSPORT TECHNOLOGIES
- Giovanni LANTERI
- B61 - RAILWAYS
Information Patent Application
TRAIN DIRECTION DETECTION VIA TRACK CIRCUITS
- Publication number 20140319286
- Publication date Oct 30, 2014
- BRIAN HOGAN
- B61 - RAILWAYS
Information Patent Application
VARIABLE FREQUENCY TRAIN DETECTION
- Publication number 20140319285
- Publication date Oct 30, 2014
- BRIAN HOGAN
- B61 - RAILWAYS
Information Patent Application
WIRELESS AND/OR WIRED FREQUENCY PROGRAMMABLE TERMINATION SHUNTS
- Publication number 20140263858
- Publication date Sep 18, 2014
- BRIAN HOGAN
- B61 - RAILWAYS
Information Patent Application
DEVICE FOR DETECTING THE OCCUPIED OR AVAILABLE STATUS OF A TRACK SE...
- Publication number 20140014783
- Publication date Jan 16, 2014
- Siemens Aktiengesellschaft
- Gerald Lude
- B61 - RAILWAYS
Information Patent Application
METHOD FOR DETECTING THE EXTENT OF CLEAR, INTACT TRACK NEAR A RAILW...
- Publication number 20130334373
- Publication date Dec 19, 2013
- Jerome J. Malone
- B61 - RAILWAYS
Information Patent Application
DEVICES FOR DETECTING THE OCCUPIED STATE OR THE FREE STATE OF A TRA...
- Publication number 20110315828
- Publication date Dec 29, 2011
- Siemens Aktiengesellschaft
- Peer Bohlmann
- B61 - RAILWAYS
Information Patent Application
FOREIGN TRACK CURRENT SUPPRESSION SYSTEM AND METHOD
- Publication number 20110309205
- Publication date Dec 22, 2011
- Larry J. Anderson
- B61 - RAILWAYS
Information Patent Application
INDUCTIVE LOOP PRESENCE DETECTOR
- Publication number 20110251809
- Publication date Oct 13, 2011
- AAA Sales & Engineering, Inc.
- Wayne E. Stollenwerk
- B61 - RAILWAYS
Information Patent Application
TRAIN DETECTOR AND TRAIN SECURITY DEVICE FOR DUAL GAUGE TRACK CIRCUIT
- Publication number 20110174934
- Publication date Jul 21, 2011
- Hitachi, Ltd.
- Kenji KIKUCHI
- B61 - RAILWAYS
Information Patent Application
Track circuit
- Publication number 20110147535
- Publication date Jun 23, 2011
- ALSTOM FERROVIARIA SPA
- Pier Alessandro Aisa
- B61 - RAILWAYS
Information Patent Application
SYSTEMS AND METHODS FOR DETERMINING WHETHER A TRANSPORTATION TRACK...
- Publication number 20100025545
- Publication date Feb 4, 2010
- Jeffrey Koval
- B61 - RAILWAYS
Information Patent Application
Digital train system for automatically detecting trains approaching...
- Publication number 20040181321
- Publication date Sep 16, 2004
- General Electric Company
- Jeff Fries
- B61 - RAILWAYS

Use of alternating current

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Broken rail detector

Track circuit with continued distance monitoring and broken rail pr...

Grade crossing control system

System and method for detecting a break in a railway track

Rail fracture detection device

System and method for detecting the presence of a train on a railwa...

Railroad track circuit for determining the occupancy status of a po...

Track circuit mechanical joint integrity checker

Railroad track circuits

Track circuit power supply vital monitor

Systems and methods for determining whether a transportation track...

Wireless and/or wired frequency programmable termination shunts

Device for detecting the occupied or available status of a track se...

Method for detecting the extent of clear, intact track near a railw...

Devices for detecting the occupied state or the free state of a tra...

Train detector and train security device for dual gauge track circuit

Track circuit

Foreign track current suppression system and method

Digital train system for automatically detecting trains approaching...

Railway track circuits

Railway track circuits

Device for the protection of track relays from electrical disturbances

Combination frequency loop coupling for railway track signalling

Method and apparatus for identifying the components of a signal

Fail-safe voltage-limiting circuit for an audio frequency overlay t...

Track circuit for AC electrified railways

Device for detecting the unbalance between the two fractions of the...

Vital track circuit wheel detector

Vital solid state relay for railroad alternating current track circ...

Coupling for inducing a current in the rails of a railroad track

Patents Applicationslast 30 patents

BROKEN RAIL DETECTOR

DEVICE, SYSTEM AND METHOD FOR MONITORING CONDITIONS ON A RAILWAY TRACK

TRACK CIRCUIT WITH CONTINUED DISTANCE MONITORING AND BROKEN RAIL PR...

GRADE CROSSING CONTROL SYSTEM

SYSTEM AND METHOD FOR DETECTING A BREAK IN A RAILWAY TRACK

SYSTEM AND METHOD FOR DETECTING THE PRESENCE OF A TRAIN ON A RAILWA...

TRAIN DIRECTION DETECTION VIA TRACK CIRCUITS

VARIABLE FREQUENCY TRAIN DETECTION

WIRELESS AND/OR WIRED FREQUENCY PROGRAMMABLE TERMINATION SHUNTS

DEVICE FOR DETECTING THE OCCUPIED OR AVAILABLE STATUS OF A TRACK SE...

METHOD FOR DETECTING THE EXTENT OF CLEAR, INTACT TRACK NEAR A RAILW...

DEVICES FOR DETECTING THE OCCUPIED STATE OR THE FREE STATE OF A TRA...

FOREIGN TRACK CURRENT SUPPRESSION SYSTEM AND METHOD

INDUCTIVE LOOP PRESENCE DETECTOR

TRAIN DETECTOR AND TRAIN SECURITY DEVICE FOR DUAL GAUGE TRACK CIRCUIT

Track circuit

SYSTEMS AND METHODS FOR DETERMINING WHETHER A TRANSPORTATION TRACK...

Digital train system for automatically detecting trains approaching...