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VEHICLE SUSPENSION SYSTEM

  • US 3,773,346 A
  • Filed: 01/03/1972
  • Issued: 11/20/1973
  • Est. Priority Date: 01/03/1972
  • Status: Expired due to Term
First Claim
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1. In a vehicle, a frame having a principal suspension system consisting of a front wheel set, first resilient spring means operably connecting said front wheel set to the vehicle frame, a rear wheel set, second resilient spring means operably connecting said rear wheel set to the vehicle frame, said frame supporting an applied load of a variable amount and disposition relative to said front and rear wheel sets, said first resilient spring means having a natural frequency which varies with the vehicle loading amount and disposition conditions, and said second resilient spring means having a natural frequency varying with the variations of said first resilient spring means such that the natural frequencies of said first and second resilient spring means remain substantially balanced with the loading conditions.

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