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Manual switch with timed electro-thermal latch release

  • US 4,345,233 A
  • Filed: 03/02/1981
  • Issued: 08/17/1982
  • Est. Priority Date: 03/02/1981
  • Status: Expired due to Fees
First Claim
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1. A manually operable electric switch having a timed, electro-thermal latch release comprising, in combination:

  • an insulating housing;

    switch contacts mounted in said housing;

    operator means mounted in said housing and manually operable to actuate said contacts between open and closed circuit positions;

    means biasing said contacts to a normally open circuit position;

    electro-thermal latch means mounted in said housing and operable in a de-energized condition to restrain said operator means in a position effecting a closed circuit position of said contacts; and

    electric timing means mounted in said housing energizable upon closure of said switch contacts to initiate a timing period and operable upon completion of said timing period to energize said electro-thermal latch means to release said operator means and causing said switch contacts to be opened.

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