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Hall effect signalling gauge

  • US 4,975,687 A
  • Filed: 08/29/1989
  • Issued: 12/04/1990
  • Est. Priority Date: 08/29/1989
  • Status: Expired due to Term
First Claim
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1. A signalling gauge comprising:

  • a gauge movement responsive to a sensed condition;

    a pointer mounted on said gauge movement;

    a magnet attached to said pointer;

    a noncaptivating, magnetically actuated switch element mounted in an influence zone of the path of said magnet.

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