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Devices for ensuring operation of the switch at a predetermined point in the ac cycle

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  • CPC
  • H01H33/44
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Parent Industries

HELECTRICITY H01Electric elements H01HELECTRIC SWITCHES RELAYS SELECTORS EMERGENCY PROTECTIVE DEVICES H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means

Current Industry

H01H33/44Devices for ensuring operation of the switch at a predetermined point in the ac cycle
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Magnetizing inrush current suppressing device
    • Patent number 9,490,627
    • Issue date Nov 8, 2016
    • Kabushiki Kaisha Toshiba
    • Tadashi Koshizuka
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Compressed gas power switch
    • Patent number 6,207,918
    • Issue date Mar 27, 2001
    • Siemens Aktiengesellschaft
    • Dieter Lorenz
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Synchronous closing system and latch therefor
    • Patent number 4,306,263
    • Issue date Dec 15, 1981
    • Gould Inc.
    • Keith I. Gray
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Apparatus and method for quenching an arc in a gas flow circuit
    • Patent number 4,221,942
    • Issue date Sep 9, 1980
    • Siemens Aktiengesellschaft
    • Walter Hertz
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Contact arrangement for an electric pressure gas power circuit breaker
    • Patent number 3,965,318
    • Issue date Jun 22, 1976
    • Siemens Aktiengesellschaft
    • Helmut Beier
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3821506
    • Patent number 3,821,506
    • Issue date Jun 28, 1974
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3813507
    • Patent number 3,813,507
    • Issue date May 28, 1974
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3660625
    • Patent number 3,660,625
    • Issue date May 2, 1972
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    3655931
    • Patent number 3,655,931
    • Issue date Apr 11, 1972
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3549841
    • Patent number 3,549,841
    • Issue date Dec 22, 1970
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3546408
    • Patent number 3,546,408
    • Issue date Dec 8, 1970
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3532842
    • Patent number 3,532,842
    • Issue date Oct 6, 1970
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3491315
    • Patent number 3,491,315
    • Issue date Jan 20, 1970
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3486137
    • Patent number 3,486,137
    • Issue date Dec 23, 1969
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3390240
    • Patent number 3,390,240
    • Issue date Jun 25, 1968
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3388361
    • Patent number 3,388,361
    • Issue date Jun 11, 1968
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3381102
    • Patent number 3,381,102
    • Issue date Apr 30, 1968
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3380005
    • Patent number 3,380,005
    • Issue date Apr 23, 1968
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3379850
    • Patent number 3,379,850
    • Issue date Apr 23, 1968
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3372303
    • Patent number 3,372,303
    • Issue date Mar 5, 1968
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3364326
    • Patent number 3,364,326
    • Issue date Jan 16, 1968
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3337827
    • Patent number 3,337,827
    • Issue date Aug 22, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3313982
    • Patent number 3,313,982
    • Issue date Apr 11, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3299377
    • Patent number 3,299,377
    • Issue date Jan 17, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3291950
    • Patent number 3,291,950
    • Issue date Dec 13, 1966
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3284732
    • Patent number 3,284,732
    • Issue date Nov 8, 1966
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3281733
    • Patent number 3,281,733
    • Issue date Oct 25, 1966
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3268687
    • Patent number 3,268,687
    • Issue date Aug 23, 1966
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3257534
    • Patent number 3,257,534
    • Issue date Jun 21, 1966
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3257531
    • Patent number 3,257,531
    • Issue date Jun 21, 1966
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents