using alternating current

Industry

CPC
B61L23/166

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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B61Railways B61LGUIDING RAILWAY TRAFFIC ENSURING THE SAFETY OF RAILWAY TRAFFIC B61L23/00Control, warning, or like safety means along the route or between vehicles or vehicle trains

Current Industry

B61L23/166using alternating current

Industries

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Patents Grantslast 30 patents

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
System and method for controlling signaling devices along railroad...
- Patent number 11,104,362
- Issue date Aug 31, 2021
- SIEMENS MOBILITY, INC.
- Brian Joseph Hogan
- 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
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
Vehicle protection system
- Patent number 4,742,460
- Issue date May 3, 1988
- Westinghouse Brake and Signal Company Ltd.
- Roger D. Hollands
- B61 - RAILWAYS
Information Patent Grant
Railway track circuit for electrified territory including impedance...
- Patent number 4,723,738
- Issue date Feb 9, 1988
- American Standard Inc.
- Raymond C. Franke
- B61 - RAILWAYS
Information Patent Grant
Track circuit
- Patent number 4,641,803
- Issue date Feb 10, 1987
- Westinghouse Brake and Signal Company Limited
- Christopher R. Brown
- B61 - RAILWAYS
Information Patent Grant
Railway signalling receiver
- Patent number 4,516,249
- Issue date May 7, 1985
- Westinghouse Brake & Signal Co. Ltd.
- Andrew J. Cook
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Railway track circuit
- Patent number 4,467,430
- Issue date Aug 21, 1984
- Compagnie de Signaux et d'Entreprises Electriques
- Andre Even
- B61 - RAILWAYS
Information Patent Grant
Means for use on a railroad to distinguish between traction current...
- Patent number 4,417,229
- Issue date Nov 22, 1983
- Safetran Systems Corporation
- H. James Wilson
- B61 - RAILWAYS
Information Patent Grant
Decoupling arrangement for non-insulated AC track circuits in railw...
- Patent number 4,373,691
- Issue date Feb 15, 1983
- International Standard Electric Corporation
- Hans Fricke
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Track signalling system
- Patent number 4,074,879
- Issue date Feb 21, 1978
- General Signal Corporation
- Gary E. Clark
- B61 - RAILWAYS
Information Patent Grant
3891167
- Patent number 3,891,167
- Issue date Jun 24, 1975
- B61 - RAILWAYS
Information Patent Grant
3575595
- Patent number 3,575,595
- Issue date Apr 20, 1971
- B61 - RAILWAYS
Information Patent Grant
3535510
- Patent number 3,535,510
- Issue date Oct 20, 1970
- B61 - RAILWAYS
Information Patent Grant
3526378
- Patent number 3,526,378
- Issue date Sep 1, 1970
- B61 - RAILWAYS
Information Patent Grant
3479502
- Patent number 3,479,502
- Issue date Nov 18, 1969
- B61 - RAILWAYS
Information Patent Grant
3476932
- Patent number 3,476,932
- Issue date Nov 4, 1969
- B61 - RAILWAYS
Information Patent Grant
3450873
- Patent number 3,450,873
- Issue date Jun 17, 1969
- B61 - RAILWAYS
Information Patent Grant
3450875
- Patent number 3,450,875
- Issue date Jun 17, 1969
- B61 - RAILWAYS
Information Patent Grant
3359416
- Patent number 3,359,416
- Issue date Dec 19, 1967
- B61 - RAILWAYS
Information Patent Grant
3345512
- Patent number 3,345,512
- Issue date Oct 3, 1967
- B61 - RAILWAYS
Information Patent Grant
3307032
- Patent number 3,307,032
- Issue date Feb 28, 1967
- B61 - RAILWAYS
Information Patent Grant
3246142
- Patent number 3,246,142
- Issue date Apr 12, 1966
- B61 - RAILWAYS
Information Patent Grant
2790070
- Patent number 2,790,070
- Issue date Apr 23, 1957
- B61 - RAILWAYS
Information Patent Grant
2673331
- Patent number 2,673,331
- Issue date Mar 23, 1954
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
2590483
- Patent number 2,590,483
- Issue date Mar 25, 1952
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
SYSTEM AND METHOD FOR CONTROLLING SIGNALING DEVICES ALONG RAILROAD...
- Publication number 20190232989
- Publication date Aug 1, 2019
- Siemens Inudstry, Inc.
- Brian Joseph Hogan
- 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
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

using alternating current

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

System and method for detecting a break in a railway track

System and method for controlling signaling devices along railroad...

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

Railway track circuits

Railway track circuits

Device for the protection of track relays from electrical disturbances

Combination frequency loop coupling for railway track signalling

Vehicle protection system

Railway track circuit for electrified territory including impedance...

Track circuit

Railway signalling receiver

Railway track circuit

Means for use on a railroad to distinguish between traction current...

Decoupling arrangement for non-insulated AC track circuits in railw...

Track signalling system

3891167

3575595

3535510

3526378

3479502

3476932

3450873

3450875

3359416

3345512

3307032

3246142

2790070

2673331

2590483

Patents Applicationslast 30 patents

SYSTEM AND METHOD FOR CONTROLLING SIGNALING DEVICES ALONG RAILROAD...

SYSTEM AND METHOD FOR DETECTING A BREAK IN A RAILWAY TRACK

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