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Spring unit for weight adjustment of a chair

  • US 6,659,555 B1
  • Filed: 08/03/2000
  • Issued: 12/09/2003
  • Est. Priority Date: 02/23/2000
  • Status: Expired due to Fees
First Claim
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1. A spring unit for the weight-setting of a chair, comprising:

  • a first gas spring element for the weight-setting of a chair;

    further spring elements; and

    an adjusting device for selectively engaging a given combination of said further spring elements to act in parallel with said first gas spring element to adjust the weight setting of the chair.

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