Method for discriminating between used and unused gas generators for air bags during car scrapping process

  • US 6,012,659 A
  • Filed: 09/12/1997
  • Issued: 01/11/2000
  • Est. Priority Date: 06/16/1995
  • Status: Expired due to Fees
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First Claim
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1. A method for discriminating between used and unused gas generators in a process for scrapping cars mounted with gas generators each having on a surface thereof, a material that discolors according to the surface temperatures in actuating the gas generators, comprising:

  • a) crushing the used cars to separate used or unused gas generators for air bags from the cars; and

    b) discriminating the gas generators, in which surfaces are discolored, and the gas generators, in which surfaces are not discolored, from among the separated gas generators.

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