by movement of rotating pistons

Patents Grantslast 30 patents

  • Information Patent Grant

    High-voltage loadbreak switch with enhanced arc suppression

    • Patent number 6,797,909
    • Issue date Sep 28, 2004
    • McGraw-Edison Company
    • Patrick Harold Pride
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method of assembling rotary puffer switch

    • Patent number 5,259,108
    • Issue date Nov 9, 1993
    • G & W Electric Company
    • John S. Schaffer
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Rotary puffer switch

    • Patent number 5,153,399
    • Issue date Oct 6, 1992
    • G & W Electric Company
    • John S. Schaffer
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    High-voltage circuit breaker

    • Patent number 4,357,508
    • Issue date Nov 2, 1982
    • Siemens Aktiengesellschaft
    • Peter Werner
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2933576

    • Patent number 2,933,576
    • Issue date Apr 19, 1960
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2909632

    • Patent number 2,909,632
    • Issue date Oct 20, 1959
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2815418

    • Patent number 2,815,418
    • Issue date Dec 3, 1957
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2809259

    • Patent number 2,809,259
    • Issue date Oct 8, 1957
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2787686

    • Patent number 2,787,686
    • Issue date Apr 2, 1957
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2706758

    • Patent number 2,706,758
    • Issue date Apr 19, 1955
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2100753

    • Patent number 2,100,753
    • Issue date Nov 30, 1937
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents