TREA

Audible signals

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Industry

  • CPC
  • B61L5/20
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B61Railways B61LGUIDING RAILWAY TRAFFIC ENSURING THE SAFETY OF RAILWAY TRAFFIC B61L5/00Local operating mechanisms for points or track-mounted scotch-blocks Visible or audible signals Local operating mechanisms for visible or audible signals

Current Industry

B61L5/20Audible signals
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Concealed asset locator
    • Patent number 12,246,766
    • Issue date Mar 11, 2025
    • SIEMENS MOBILITY, INC.
    • Richard Alan McGavock
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Support structures for transportation systems
    • Patent number 10,957,967
    • Issue date Mar 23, 2021
    • Aecom
    • Daniel Smith
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Travel obstructing device
    • Patent number 10,272,931
    • Issue date Apr 30, 2019
    • Daifuku Co., Ltd.
    • Ryuya Murakami
    • B61 - RAILWAYS
  • Information Patent Grant

    Crossing proximity and train-on-approach notification system
    • Patent number 9,193,367
    • Issue date Nov 24, 2015
    • The Island Radar Company
    • Thomas N. Hilleary
    • B61 - RAILWAYS
  • Information Patent Grant

    Track warning detonator
    • Patent number 5,265,538
    • Issue date Nov 30, 1993
    • Ronald S. Sampson
    • B61 - RAILWAYS
  • Information Patent Grant

    3249933
    • Patent number 3,249,933
    • Issue date May 3, 1966
    • G08 - SIGNALLING
  • Information Patent Grant

    3085238
    • Patent number 3,085,238
    • Issue date Apr 9, 1963
    • B61 - RAILWAYS
  • Information Patent Grant

    3036182
    • Patent number 3,036,182
    • Issue date May 22, 1962
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2826144
    • Patent number 2,826,144
    • Issue date Mar 11, 1958
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    2607835
    • Patent number 2,607,835
    • Issue date Aug 19, 1952
    • B61 - RAILWAYS
  • Information Patent Grant

    2557254
    • Patent number 2,557,254
    • Issue date Jun 19, 1951
    • B61 - RAILWAYS
  • Information Patent Grant

    2547698
    • Patent number 2,547,698
    • Issue date Apr 3, 1951
    • B61 - RAILWAYS
  • Information Patent Grant

    2533768
    • Patent number 2,533,768
    • Issue date Dec 12, 1950
    • B61 - RAILWAYS
  • Information Patent Grant

    2507004
    • Patent number 2,507,004
    • Issue date May 9, 1950
    • B61 - RAILWAYS
  • Information Patent Grant

    2442569
    • Patent number 2,442,569
    • Issue date Jun 1, 1948
    • B61 - RAILWAYS
  • Information Patent Grant

    2422403
    • Patent number 2,422,403
    • Issue date Jun 17, 1947
    • B61 - RAILWAYS
  • Information Patent Grant

    2412746
    • Patent number 2,412,746
    • Issue date Dec 17, 1946
    • B61 - RAILWAYS
  • Information Patent Grant

    2412018
    • Patent number 2,412,018
    • Issue date Dec 3, 1946
    • B61 - RAILWAYS
  • Information Patent Grant

    2387915
    • Patent number 2,387,915
    • Issue date Oct 30, 1945
    • B61 - RAILWAYS
  • Information Patent Grant

    2362347
    • Patent number 2,362,347
    • Issue date Nov 7, 1944
    • B61 - RAILWAYS
  • Information Patent Grant

    2236189
    • Patent number 2,236,189
    • Issue date Mar 25, 1941
    • B61 - RAILWAYS
  • Information Patent Grant

    2222340
    • Patent number 2,222,340
    • Issue date Nov 19, 1940
    • B61 - RAILWAYS
  • Information Patent Grant

    2220407
    • Patent number 2,220,407
    • Issue date Nov 5, 1940
    • B61 - RAILWAYS
  • Information Patent Grant

    2210423
    • Patent number 2,210,423
    • Issue date Aug 6, 1940
    • B61 - RAILWAYS
  • Information Patent Grant

    2208873
    • Patent number 2,208,873
    • Issue date Jul 23, 1940
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    2207207
    • Patent number 2,207,207
    • Issue date Jul 9, 1940
    • B61 - RAILWAYS
  • Information Patent Grant

    2205293
    • Patent number 2,205,293
    • Issue date Jun 18, 1940
    • B61 - RAILWAYS
  • Information Patent Grant

    2189398
    • Patent number 2,189,398
    • Issue date Feb 6, 1940
    • B61 - RAILWAYS
  • Information Patent Grant

    2176362
    • Patent number 2,176,362
    • Issue date Oct 17, 1939
    • B61 - RAILWAYS
  • Information Patent Grant

    2162724
    • Patent number 2,162,724
    • Issue date Jun 20, 1939
    • B61 - RAILWAYS

Patents Applicationslast 30 patents