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Obstacle traversing wheelchair

  • US 7,597,163 B2
  • Filed: 07/21/2006
  • Issued: 10/06/2009
  • Est. Priority Date: 10/27/2000
  • 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 mounting bracket;

    a rear caster coupled to the frame; and

    wherein movement of the drive assembly mounting bracket with respect to the frame in a first direction causes the pivot arm to remain in substantially a first position; and

    movement of the drive assembly mounting bracket with respect to the frame in a second direction urges the pivot arm away from the first position.

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