using apparatus with a spring motor or a snap-acting mechanism for actuating any one of a number of circuit breakers

Patents Grantslast 30 patents

  • Information Patent Grant

    Manual operator for an electrical switch

    • Patent number 5,066,840
    • Issue date Nov 19, 1991
    • Automatic Switch Company
    • Dominik M. Wiktor
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Tool for making and breaking load currents

    • Patent number 4,281,228
    • Issue date Jul 28, 1981
    • Robert W. Harmon
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3120291

    • Patent number 3,120,291
    • Issue date Feb 4, 1964
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    2778450

    • Patent number 2,778,450
    • Issue date Jan 22, 1957
    • G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents