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Crash sensing switch

  • US 5,856,645 A
  • Filed: 06/06/1995
  • Issued: 01/05/1999
  • Est. Priority Date: 03/02/1987
  • Status: Expired due to Fees
First Claim
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1. In a crash sensor for an occupant protection system of a vehicle of the type comprising a sealed gas filled tube having an axis, a sensing mass movable axially inside and in close proximity to said tube, said movement causing displacement of said gas and including means for viscously conducting said displaced gas,said sensing mass being movable during a crash from a normal resting position to a second position and there being sensing means for ascertaining when said sensing mass has moved to said second position, the improvement comprising:

  • flow restricting means for limiting flow of said gas between said sensing mass and said tube, and whereinsaid means for viscously conducting comprises a duct for viscously conducting said gas past said flow restricting means.

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