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Device for pressure relief during bonfire and tell-tale of compressed gas

  • US 5,738,372 A
  • Filed: 05/15/1996
  • Issued: 04/14/1998
  • Est. Priority Date: 05/15/1996
  • Status: Expired due to Fees
First Claim
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1. A device for sealing a gas fill port of an inflator of a vehicle restraint system, and for providing pressure relief of gases during bonfire of the inflator, comprising:

  • means for sealing the fill port of the inflator, the sealing means being made of a material which melts at or just below an auto-ignition temperature of the inflator during bonfire to allow gases to vent from the inflator, thereby preventing the inflator from experiencing extremely high internal pressures, and wherein the sealing means deforms an amount which is proportional to the amount of gas present in the inflator prior to deployment, and the amount of deformation can be examined after functioning of the inflator to determine the amount of gas present in the inflator.

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