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Velocity change sensor with double pole sensor

  • US 5,123,499 A
  • Filed: 03/01/1991
  • Issued: 06/23/1992
  • Est. Priority Date: 10/19/1989
  • Status: Expired due to Fees
First Claim
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1. An accelerometer for sensing velocity changes comprising:

  • a housing with a first end and a second end;

    a sensing element movably disposed in said housing; and

    biasing means for applying a biasing force on said sensing element;

    first and second contact blades said first contact blade being provided with a an insulating coating to prevent an electrical path through said sensing element, said sensing element being arranged and constructed to move said first contact blade from a first position toward a second position away from said first position in response to a deceleration force exceeding said biasing force to contact said second contact blade with said second contact blade being initially stationary as said first contact blade is being displaced.

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