wherein the contacts are opened by the flow of air or gas

Patents Grantslast 30 patents

  • Information Patent Grant

    Trigger element of a pressure trigger, pressure trigger with a trig...

    • Patent number 11,056,297
    • Issue date Jul 6, 2021
    • Siemens Aktiengesellschaft
    • Joerg-uwe Dahl
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Pressure trip unit for an electrical switch and electrical switch w...

    • Patent number 10,971,316
    • Issue date Apr 6, 2021
    • Siemens Aktiengesellschaft
    • Oliver Andersen
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit-breakers for high voltages

    • Patent number 4,109,124
    • Issue date Aug 22, 1978
    • Coq B.V.
    • Rintje Boersma
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Electrical power switch with pressurized gas blasting device for le...

    • Patent number 4,072,838
    • Issue date Feb 7, 1978
    • BBC Brown, Boveri & Company Limited
    • Lutz Niemeyer
    • H01 - BASIC ELECTRIC ELEMENTS
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    3890479

    • Patent number 3,890,479
    • Issue date Jun 17, 1975
    • H01 - BASIC ELECTRIC ELEMENTS
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    3761661

    • Patent number 3,761,661
    • Issue date Sep 25, 1973
    • H01 - BASIC ELECTRIC ELEMENTS
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    3716686

    • Patent number 3,716,686
    • Issue date Feb 13, 1973
    • H01 - BASIC ELECTRIC ELEMENTS
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    3686453

    • Patent number 3,686,453
    • Issue date Aug 22, 1972
    • H01 - BASIC ELECTRIC ELEMENTS
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    3649792

    • Patent number 3,649,792
    • Issue date Mar 14, 1972
    • H01 - BASIC ELECTRIC ELEMENTS
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    3604871

    • Patent number 3,604,871
    • Issue date Sep 14, 1971
    • H01 - BASIC ELECTRIC ELEMENTS
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    3590187

    • Patent number 3,590,187
    • Issue date Jun 29, 1971
    • H01 - BASIC ELECTRIC ELEMENTS
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    3590191

    • Patent number 3,590,191
    • Issue date Jun 29, 1971
    • H01 - BASIC ELECTRIC ELEMENTS
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    3564179

    • Patent number 3,564,179
    • Issue date Feb 16, 1971
    • H01 - BASIC ELECTRIC ELEMENTS
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    3553406

    • Patent number 3,553,406
    • Issue date Jan 5, 1971
    • H01 - BASIC ELECTRIC ELEMENTS
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    3424884

    • Patent number 3,424,884
    • Issue date Jan 28, 1969
    • H01 - BASIC ELECTRIC ELEMENTS
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    3379850

    • Patent number 3,379,850
    • Issue date Apr 23, 1968
    • H01 - BASIC ELECTRIC ELEMENTS
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    3339045

    • Patent number 3,339,045
    • Issue date Aug 29, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
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    3254185

    • Patent number 3,254,185
    • Issue date May 31, 1966
    • H01 - BASIC ELECTRIC ELEMENTS
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    3215804

    • Patent number 3,215,804
    • Issue date Nov 2, 1965
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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    3170055

    • Patent number 3,170,055
    • Issue date Feb 16, 1965
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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    3143623

    • Patent number 3,143,623
    • Issue date Aug 4, 1964
    • H01 - BASIC ELECTRIC ELEMENTS
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    3141942

    • Patent number 3,141,942
    • Issue date Jul 21, 1964
    • H01 - BASIC ELECTRIC ELEMENTS
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    3134875

    • Patent number 3,134,875
    • Issue date May 26, 1964
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    3094601

    • Patent number 3,094,601
    • Issue date Jun 18, 1963
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    3093717

    • Patent number 3,093,717
    • Issue date Jun 11, 1963
    • H01 - BASIC ELECTRIC ELEMENTS
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    3073931

    • Patent number 3,073,931
    • Issue date Jan 15, 1963
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    3045086

    • Patent number 3,045,086
    • Issue date Jul 17, 1962
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    3017482

    • Patent number 3,017,482
    • Issue date Jan 16, 1962
    • H01 - BASIC ELECTRIC ELEMENTS
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    2902570

    • Patent number 2,902,570
    • Issue date Sep 1, 1959
    • H01 - BASIC ELECTRIC ELEMENTS
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    2887550

    • Patent number 2,887,550
    • Issue date May 19, 1959
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents