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Seat structure with adjustable suspension

  • US 5,601,338 A
  • Filed: 03/23/1995
  • Issued: 02/11/1997
  • Est. Priority Date: 03/23/1995
  • Status: Expired due to Term
First Claim
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1. An adjustable resilient supported seat comprising, in combination, a frame having a front rail and side rails having rear portions, said frame including a back support mounted upon said side rails'"'"' rear portions, a seat bottom pan having a front portion and a rear portion, hinge means attaching said pan front portion to said frame front rail permitting said pan rear portion to be vertically displaceable with respect to said frame side rails'"'"' rear portions, pan rear portion support means mounted on said frame, springs mounted upon said frame producing a resilient biasing force operatively associated with and supporting said pan rear portion support means and adjustment means mounted on said frame selectively adjusting the location of application of said resilient biasing force with respect to said hinge means and said pan rear portion support means to adjust the magnitude of said resilient biasing force upon said pan rear portion support means to vary the weight bearing characteristics of said seat bottom pan.

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