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Motion sensor and detection system

  • US 4,980,575 A
  • Filed: 04/10/1990
  • Issued: 12/25/1990
  • Est. Priority Date: 04/10/1990
  • Status: Expired due to Term
First Claim
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1. A motion sensor comprising:

  • (a) first and second housings comprised of electrically conductive material;

    (b) first and second electrically conductive means movably supported respectively in said first and second housings; and

    (c) joinder means for interconnection of said first and second housings, said joinder means being comprised of electrically insulative material and defining a passage permitting movement of said first and second electrically conductive means between said first and second housings responsively to orientation of said motion sensor,said joinder means, said housings and said first and second electrically conductive means being collectively dimensioned to provide for electrical conductivity between said first and second housings upon reorientation of said motion sensor from one disposition wherein neither of said first and second electrically conductive means are in registry with said joinder means.

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