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Motor vehicles with a retaining system for the passengers

  • US 3,918,545 A
  • Filed: 10/11/1973
  • Issued: 11/11/1975
  • Est. Priority Date: 10/11/1972
  • Status: Expired due to Term
First Claim
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1. In a vehicle retaining system for passengers, said retaining system comprising at least one safety belt means, sensor means for sensing the occurrence of passenger danger and belttightening means for automatically tightening said safety belt means to a predetermined pretension on said passengers at a predetermined deceleration threshold sensed by said sensor means, the improvement comprising control means for varying tension of said safety belt means on said passengers upon exceeding said predetermined deceleration threshold as a function of at least one of two control signals respectively representative of vehicle velocity change per time unit and weight of the respectively retained passengers.

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