TREA

John S. Schaffer

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  • Tinley Park, IL, US
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Patents Grantslast 30 patents

  • 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

    Switch operating mechanism
    • Patent number 5,226,528
    • Issue date Jul 13, 1993
    • 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

    Switch with auxiliary biasing mechanism
    • Patent number 4,636,594
    • Issue date Jan 13, 1987
    • G & W Electric Company
    • Janak R. Patel
    • H01 - BASIC ELECTRIC ELEMENTS