for preventing and then permitting ignition, but thereafter having no control

Industry

  • CPC
  • H01J17/56
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Patents Grantslast 30 patents

  • Information Patent Grant

    Multiple surface high voltage structure for a gas discharge closing...

    • Patent number 5,545,947
    • Issue date Aug 13, 1996
    • Litton Systems, Inc.
    • Henry D. Navaroli
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Cathode placement in a gas discharge closing switch

    • Patent number 5,477,106
    • Issue date Dec 19, 1995
    • Litton Systems, Inc.
    • Eugene E. Lednum
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Thyratron with annular keep-alive electrode

    • Patent number 5,451,836
    • Issue date Sep 19, 1995
    • Litton Systems, Inc.
    • Jonathan D. Barry
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum switch apparatus

    • Patent number 5,038,082
    • Issue date Aug 6, 1991
    • Hitachi, Ltd.
    • Hiroshi Arita
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Discharge tubes

    • Patent number 4,896,073
    • Issue date Jan 23, 1990
    • English Electric Valve Company Limited
    • Arthur Maitland
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Thyratrons

    • Patent number 4,890,034
    • Issue date Dec 26, 1989
    • English Electric Valve Company Limited
    • Hugh Menown
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Gas discharge devices wherein electrons are injected into a high fi...

    • Patent number 4,879,490
    • Issue date Nov 7, 1989
    • English Electric Valve Company Limited
    • Clifford R. Weatherup
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Apparatus for forming an electron beam sheet

    • Patent number 4,839,554
    • Issue date Jun 13, 1989
    • English Electric Valve Company Limited
    • Arthur Maitland
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Thyratron having thermionic cathode material between anode and cont...

    • Patent number 4,761,794
    • Issue date Aug 2, 1988
    • English Electric Valve Company Limited
    • Hugh Menown
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Gas discharge devices utilizing electron injection for gas ionization

    • Patent number 4,758,766
    • Issue date Jul 19, 1988
    • English Electric Valve Company Limited
    • Clifford R. Weatherup
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Linear geometry thyratron

    • Patent number 4,668,896
    • Issue date May 26, 1987
    • The United States of America as represented by the Secretary of the Air Force
    • Stanley R. Byron
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Thyratron interrupters

    • Patent number 4,639,643
    • Issue date Jan 27, 1987
    • English Electric Valve Company Limited
    • Timothy P. Donaldson
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electric circuit interrupting devices

    • Patent number 4,620,135
    • Issue date Oct 28, 1986
    • English Electric Valve Company Limited
    • Timothy P. Donaldson
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Thyratrons

    • Patent number 4,577,138
    • Issue date Mar 18, 1986
    • English Electric Valve Company
    • Hugh Menown
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Thyratrons

    • Patent number 4,123,684
    • Issue date Oct 31, 1978
    • English Electric Valve Company Limited
    • Hugh Menown
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Double ended thyratron with trigger impulse means

    • Patent number 4,081,719
    • Issue date Mar 28, 1978
    • English Electric Valve Company Limited
    • Robert Bewes Molyneux-Berry
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Biasing circuit for thyratron

    • Patent number 4,074,202
    • Issue date Feb 14, 1978
    • English Electric Valve Co., Ltd.
    • Graham J. Scoles
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3898518

    • Patent number 3,898,518
    • Issue date Aug 5, 1975
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3885183

    • Patent number 3,885,183
    • Issue date May 20, 1975
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3579031

    • Patent number 3,579,031
    • Issue date May 18, 1971
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3479549

    • Patent number 3,479,549
    • Issue date Nov 18, 1969
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3460024

    • Patent number 3,460,024
    • Issue date Aug 5, 1969
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3458758

    • Patent number 3,458,758
    • Issue date Jul 29, 1969
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3349283

    • Patent number 3,349,283
    • Issue date Oct 24, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3349267

    • Patent number 3,349,267
    • Issue date Oct 24, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3337764

    • Patent number 3,337,764
    • Issue date Aug 22, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3336492

    • Patent number 3,336,492
    • Issue date Aug 15, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3328545

    • Patent number 3,328,545
    • Issue date Jun 27, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3327166

    • Patent number 3,327,166
    • Issue date Jun 20, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3244925

    • Patent number 3,244,925
    • Issue date Apr 5, 1966
    • H01 - BASIC ELECTRIC ELEMENTS