TREA

Common line wire control using currents of different amplitudes, polarities, frequencies, or the like

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Industry

  • CPC
  • B61L7/083
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B61Railways B61LGUIDING RAILWAY TRAFFIC ENSURING THE SAFETY OF RAILWAY TRAFFIC B61L7/00Remote control of local operating means for points, signals, or trackmounted scotch-blocks

Current Industry

B61L7/083Common line wire control using currents of different amplitudes, polarities, frequencies, or the like
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Railway switch machine motor control apparatus
    • Patent number 6,366,041
    • Issue date Apr 2, 2002
    • Union Switch & Signal, Inc.
    • Robert P. Bozio
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    System for transmitting commands
    • Patent number 4,779,071
    • Issue date Oct 18, 1988
    • Pianelli and Traveisa S.A.S.
    • Alberto Guglielmo
    • G08 - SIGNALLING
  • Information Patent Grant

    2816218
    • Patent number 2,816,218
    • Issue date Dec 10, 1957
    • B61 - RAILWAYS
  • Information Patent Grant

    2627063
    • Patent number 2,627,063
    • Issue date Jan 27, 1953
    • B61 - RAILWAYS
  • Information Patent Grant

    2576479
    • Patent number 2,576,479
    • Issue date Nov 27, 1951
    • B61 - RAILWAYS
  • Information Patent Grant

    2559390
    • Patent number 2,559,390
    • Issue date Jul 3, 1951
    • B61 - RAILWAYS
  • Information Patent Grant

    2543869
    • Patent number 2,543,869
    • Issue date Mar 6, 1951
    • B61 - RAILWAYS
  • Information Patent Grant

    2520865
    • Patent number 2,520,865
    • Issue date Aug 29, 1950
    • B61 - RAILWAYS
  • Information Patent Grant

    2361445
    • Patent number 2,361,445
    • Issue date Oct 31, 1944
    • B61 - RAILWAYS
  • Information Patent Grant

    2344702
    • Patent number 2,344,702
    • Issue date Mar 21, 1944
    • B61 - RAILWAYS
  • Information Patent Grant

    2337204
    • Patent number 2,337,204
    • Issue date Dec 21, 1943
    • B61 - RAILWAYS
  • Information Patent Grant

    2301376
    • Patent number 2,301,376
    • Issue date Nov 10, 1942
    • B61 - RAILWAYS
  • Information Patent Grant

    2273383
    • Patent number 2,273,383
    • Issue date Feb 17, 1942
    • B61 - RAILWAYS
  • Information Patent Grant

    2273231
    • Patent number 2,273,231
    • Issue date Feb 17, 1942
    • B61 - RAILWAYS
  • Information Patent Grant

    2215437
    • Patent number 2,215,437
    • Issue date Sep 17, 1940
    • B61 - RAILWAYS
  • Information Patent Grant

    2124651
    • Patent number 2,124,651
    • Issue date Jul 26, 1938
    • B61 - RAILWAYS
  • Information Patent Grant

    2098638
    • Patent number 2,098,638
    • Issue date Nov 9, 1937
    • B61 - RAILWAYS
  • Information Patent Grant

    2068736
    • Patent number 2,068,736
    • Issue date Jan 26, 1937
    • B61 - RAILWAYS
  • Information Patent Grant

    2057543
    • Patent number 2,057,543
    • Issue date Oct 13, 1936
    • B61 - RAILWAYS
  • Information Patent Grant

    2052581
    • Patent number 2,052,581
    • Issue date Sep 1, 1936
    • B61 - RAILWAYS
  • Information Patent Grant

    2042450
    • Patent number 2,042,450
    • Issue date Jun 2, 1936
    • B61 - RAILWAYS
  • Information Patent Grant

    2039616
    • Patent number 2,039,616
    • Issue date May 5, 1936
    • B61 - RAILWAYS
  • Information Patent Grant

    1990472
    • Patent number 1,990,472
    • Issue date Feb 12, 1935
    • B61 - RAILWAYS
  • Information Patent Grant

    1946186
    • Patent number 1,946,186
    • Issue date Feb 6, 1934
    • B61 - RAILWAYS
  • Information Patent Grant

    1878085
    • Patent number 1,878,085
    • Issue date Sep 20, 1932
    • B61 - RAILWAYS
  • Information Patent Grant

    1852368
    • Patent number 1,852,368
    • Issue date Apr 5, 1932
    • B61 - RAILWAYS
  • Information Patent Grant

    1812225
    • Patent number 1,812,225
    • Issue date Jun 30, 1931
    • B61 - RAILWAYS
  • Information Patent Grant

    1801974
    • Patent number 1,801,974
    • Issue date Apr 21, 1931
    • B61 - RAILWAYS
  • Information Patent Grant

    1779418
    • Patent number 1,779,418
    • Issue date Oct 28, 1930
    • B61 - RAILWAYS