×

Mechanical seat suspension with concentric cam surfaces

  • US 4,856,763 A
  • Filed: 05/19/1988
  • Issued: 08/15/1989
  • Est. Priority Date: 05/19/1988
  • Status: Expired due to Term
First Claim
Patent Images

1. An adjustable seat suspension comprising:

  • a moveable suspension housing;

    a support arm assembly, pivotable within said housing, comprising a cam and a height adjustment means, said cam including two concentric arcuate surfaces having a center point about which said cam pivots;

    parallel pairs of scissor arms connected to said housing;

    resilient suspension means operatively connected to said support arm assembly; and

    damping means connected to said scissor arms, said damping means being movable in a generally constant linear relationship to the movement of said suspension housing.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×