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in which the excitation of the electromagnet is interrupted by abnormal conditions

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  • H01H71/685
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HELECTRICITY H01Electric elements H01HELECTRIC SWITCHES RELAYS SELECTORS EMERGENCY PROTECTIVE DEVICES H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00

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H01H71/685in which the excitation of the electromagnet is interrupted by abnormal conditions
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Patents Grantslast 30 patents

  • Information Patent Grant

    Alternating current contactor with electronic short circuit self-lo...
    • Patent number 8,907,804
    • Issue date Dec 9, 2014
    • Hubei Shengjia Wiring Co., Ltd
    • Jiasheng Wan
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit protection relay having bimetal wiper
    • Patent number 6,456,476
    • Issue date Sep 24, 2002
    • Tyco Electronics Corporation
    • Inho Myong
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Resetable overcurrent protection arrangement
    • Patent number 6,421,216
    • Issue date Jul 16, 2002
    • EWD, L.L.C.
    • Inho Myong
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Control and signalling device for protective switching apparatus
    • Patent number 5,933,065
    • Issue date Aug 3, 1999
    • Schneider Electric SA
    • Pierre Duchemin
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Contactor-circuit breaker
    • Patent number 5,894,395
    • Issue date Apr 13, 1999
    • Schneider Electric SA
    • Gilles Baurand
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Hybrid overload relay
    • Patent number 5,570,262
    • Issue date Oct 29, 1996
    • Siemens Energy & Automation, Inc.
    • Bruno C. Doerwald
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Resettable ground fault circuit interrupter
    • Patent number 4,893,101
    • Issue date Jan 9, 1990
    • Ericson Manufacturing Company
    • James M. Robitaille
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Contact with a magnetic compensator
    • Patent number 4,593,260
    • Issue date Jun 3, 1986
    • La Telemecanique Electrique
    • Jean P. Guero
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Current-limiter electric switch having a telecontrol suitable for a...
    • Patent number 4,586,011
    • Issue date Apr 29, 1986
    • SACE S.p.A. Costrusioni Elettromeccaniche
    • Angelo Mostosi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Means for actuating electro-magnetic switchgear
    • Patent number 4,318,065
    • Issue date Mar 2, 1982
    • Siemens Aktiengesellschaft
    • Werner Harbauer
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3792222
    • Patent number 3,792,222
    • Issue date Feb 12, 1974
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3582846
    • Patent number 3,582,846
    • Issue date Jun 1, 1971
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3324431
    • Patent number 3,324,431
    • Issue date Jun 6, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3308404
    • Patent number 3,308,404
    • Issue date Mar 7, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3211955
    • Patent number 3,211,955
    • Issue date Oct 12, 1965
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3114323
    • Patent number 3,114,323
    • Issue date Dec 17, 1963
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2871415
    • Patent number 2,871,415
    • Issue date Jan 27, 1959
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2820150
    • Patent number 2,820,150
    • Issue date Jan 14, 1958
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2683838
    • Patent number 2,683,838
    • Issue date Jul 13, 1954
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2472275
    • Patent number 2,472,275
    • Issue date Jun 7, 1949
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2376658
    • Patent number 2,376,658
    • Issue date May 22, 1945
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2280281
    • Patent number 2,280,281
    • Issue date Apr 21, 1942
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2018340
    • Patent number 2,018,340
    • Issue date Oct 22, 1935
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1932808
    • Patent number 1,932,808
    • Issue date Oct 31, 1933
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents