TREA

using step-by-step electromagnetic drive without ratchet

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  • CPC
  • H01H63/22
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Parent Industries

HELECTRICITY H01Electric elements H01HELECTRIC SWITCHES RELAYS SELECTORS EMERGENCY PROTECTIVE DEVICES H01H63/00Details of electrically-operated selector switches

Current Industry

H01H63/22using step-by-step electromagnetic drive without ratchet
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    3003093
    • Patent number 3,003,093
    • Issue date Oct 3, 1961
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2868883
    • Patent number 2,868,883
    • Issue date Jan 13, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2806104
    • Patent number 2,806,104
    • Issue date Sep 10, 1957
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2691699
    • Patent number 2,691,699
    • Issue date Oct 12, 1954
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2662936
    • Patent number 2,662,936
    • Issue date Dec 15, 1953
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2654846
    • Patent number 2,654,846
    • Issue date Oct 6, 1953
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2627040
    • Patent number 2,627,040
    • Issue date Jan 27, 1953
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2570518
    • Patent number 2,570,518
    • Issue date Oct 9, 1951
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2520131
    • Patent number 2,520,131
    • Issue date Aug 29, 1950
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2517546
    • Patent number 2,517,546
    • Issue date Aug 8, 1950
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2512612
    • Patent number 2,512,612
    • Issue date Jun 27, 1950
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2510085
    • Patent number 2,510,085
    • Issue date Jun 6, 1950
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2510084
    • Patent number 2,510,084
    • Issue date Jun 6, 1950
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2495689
    • Patent number 2,495,689
    • Issue date Jan 31, 1950
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2490035
    • Patent number 2,490,035
    • Issue date Dec 6, 1949
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2428072
    • Patent number 2,428,072
    • Issue date Sep 30, 1947
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2427875
    • Patent number 2,427,875
    • Issue date Sep 23, 1947
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2404331
    • Patent number 2,404,331
    • Issue date Jul 16, 1946
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2404332
    • Patent number 2,404,332
    • Issue date Jul 16, 1946
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2398065
    • Patent number 2,398,065
    • Issue date Apr 9, 1946
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2307886
    • Patent number 2,307,886
    • Issue date Jan 12, 1943
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2249029
    • Patent number 2,249,029
    • Issue date Jul 15, 1941
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2200803
    • Patent number 2,200,803
    • Issue date May 14, 1940
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2200804
    • Patent number 2,200,804
    • Issue date May 14, 1940
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2168373
    • Patent number 2,168,373
    • Issue date Aug 8, 1939
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    1978700
    • Patent number 1,978,700
    • Issue date Oct 30, 1934
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1494173
    • Patent number 1,494,173
    • Issue date May 13, 1924
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1324401
    • Patent number 1,324,401
    • Issue date Dec 9, 1919
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1266190
    • Patent number 1,266,190
    • Issue date May 14, 1918
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1204466
    • Patent number 1,204,466
    • Issue date Nov 14, 1916
    • H01 - BASIC ELECTRIC ELEMENTS