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Wheelchair suspension

  • US 7,374,002 B2
  • Filed: 06/26/2006
  • Issued: 05/20/2008
  • Est. Priority Date: 10/19/2001
  • Status: Expired due to Term
First Claim
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1. A wheelchair suspension comprising:

  • a frame;

    a pivot arm pivotally coupled to the frame;

    a front caster coupled to the pivot arm;

    a drive assembly pivotally coupled directly to the frame;

    a rear caster coupled to the frame; and

    wherein the pivot arm substantially remains in a first position when the drive assembly moves in a first direction; and

    movement of the drive assembly in a second direction urges the pivot arm away from the first position.

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