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  • CPC
  • H01H33/6683
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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

H01H33/6683by gettering
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Vacuum exhaust element of vacuum switch
    • Patent number 6,495,786
    • Issue date Dec 17, 2002
    • Hitachi, Ltd.
    • Masashige Tsuji
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum tube having a getter apparatus
    • Patent number 6,034,472
    • Issue date Mar 7, 2000
    • Siemens Aktiengesellschaft
    • Klaus Oberndoerfer
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum interrupter with improved vapor shield for gas adsorption
    • Patent number 4,940,862
    • Issue date Jul 10, 1990
    • Westinghouse Electric Corp.
    • Vincent J. Santilli
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method of producing copper-chromium fusion alloys as contact materi...
    • Patent number 4,537,745
    • Issue date Aug 27, 1985
    • Siemens Aktiengesellschaft
    • Heinrich Hassler
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Hermetically sealed electrical switch with pressure regulating gett...
    • Patent number 4,401,869
    • Issue date Aug 30, 1983
    • Westinghouse Electric Corp.
    • Robert M. Hruda
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Getter body
    • Patent number 4,360,444
    • Issue date Nov 23, 1982
    • Siemens Aktiengesellschaft
    • Robert Esterl
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Vacuum switch including a getter device
    • Patent number 4,331,850
    • Issue date May 25, 1982
    • Hazemeijer B.V.
    • Joseph H. F. G. Lipperts
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Composite metal as a contact material for vacuum switches
    • Patent number 4,032,301
    • Issue date Jun 28, 1977
    • Siemens Aktiengesellschaft
    • Heinrich Hassler
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    3872271
    • Patent number 3,872,271
    • Issue date Mar 18, 1975
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3805000
    • Patent number 3,805,000
    • Issue date Apr 16, 1974
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3725219
    • Patent number 3,725,219
    • Issue date Apr 3, 1973
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    3627963
    • Patent number 3,627,963
    • Issue date Dec 14, 1971
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3612939
    • Patent number 3,612,939
    • Issue date Oct 12, 1971
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3592987
    • Patent number 3,592,987
    • Issue date Jul 13, 1971
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3590197
    • Patent number 3,590,197
    • Issue date Jun 29, 1971
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3562574
    • Patent number 3,562,574
    • Issue date Feb 9, 1971
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3508021
    • Patent number 3,508,021
    • Issue date Apr 21, 1970
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3302990
    • Patent number 3,302,990
    • Issue date Feb 7, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3258559
    • Patent number 3,258,559
    • Issue date Jun 28, 1966
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3090852
    • Patent number 3,090,852
    • Issue date May 21, 1963
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1952184
    • Patent number 1,952,184
    • Issue date Mar 27, 1934
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1905751
    • Patent number 1,905,751
    • Issue date Apr 25, 1933
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1901639
    • Patent number 1,901,639
    • Issue date Mar 14, 1933
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1733904
    • Patent number 1,733,904
    • Issue date Oct 29, 1929
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents