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Suspension system having two degrees of rotational freedom

  • US 5,529,277 A
  • Filed: 09/20/1994
  • Issued: 06/25/1996
  • Est. Priority Date: 09/20/1994
  • Status: Expired due to Term
First Claim
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1. A suspension system for supporting an object to be rotated about a desired point, said suspension system comprising:

  • (a) a support frame for supporting said object;

    (b) a ground frame for providing a stationary reference structure;

    (c) a coupling member interposed between said support frame and said ground frame;

    (d) first rigid connecting means comprising a first pair of pivotable members, having revolute joints at each end thereof for flexibly connecting said coupling member to said support frame; and

    (e) second rigid connecting means comprising a second pair of pivotable members, aligned substantially at a right angle to said first rigid connecting means, and having revolute joints at each end thereof for flexibly connecting said coupling member to said ground frame;

    wherein said first rigid connecting means and said second rigid connecting means are pivotal about said revolute joints to provide two perpendicular axes of rotation of said object while eliminating translational movement in all directions and also eliminating rotation about an axis normal to a plane defined by a perimeter of said support frame.

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