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Steering wheel mounted air bag module including electromagnetically shielded sensor

  • US 5,011,181 A
  • Filed: 01/31/1990
  • Issued: 04/30/1991
  • Est. Priority Date: 05/21/1988
  • Status: Expired due to Fees
First Claim
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1. A safety device for motor vehicles for protecting a person against impact injuries, comprising air bag means fastened to a steering wheel of the vehicle for protecting a person, gas generator means including a gas generator housing with a first mounting flange for generating an inflating gas for said air bag means, electronic ignition means for starting a gas generation in response to an impact, sensor means for activating said electronic ignition means, a sensor housing having a second mounting flange attached to said first mounting flange of said gas generator housing, support means and attachment elements for securing said first and second mounting flanges in a position on the steering wheel in such a way that said sensor housing and said gas generator housing form a complete electromagnetic shielding for said sensor means and said electronic ignition means, and wherein said first mounting flange and said second mounting flange are integral flanges of the respective gas generator housing and sensor housing, said first and second mounting flanges having a matching form so that their exact position relative to each other is fixed by said attachment elements.

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