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Counter balance system and method with one or more mechanical arms

  • US 20040035243A1
  • Filed: 05/22/2003
  • Published: 02/26/2004
  • Est. Priority Date: 05/22/2002
  • Status: Active Grant
First Claim
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1. A mechanism comprising:

  • a mechanical transmission with an input mechanism and an output mechanism; and

    wherein a ratio of the motion of the input mechanism to the output mechanism varies continuously such that the effort required to move the output mechanism varies linearly with the motion of the output mechanism and the slope of the effort is a negative constant.

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