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Miniature freefall mechanism

  • US 7,469,585 B2
  • Filed: 11/13/2006
  • Issued: 12/30/2008
  • Est. Priority Date: 11/13/2006
  • Status: Expired due to Fees
First Claim
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1. An apparatus comprising:

  • a mass dropper comprising;

    (i) a first test mass;

    (ii) a grasper, wherein said grasper passively grasps said first test mass when in a first position, and wherein said grasper releases said first test mass when in a second position; and

    (iii) an actuator for moving said grasper on a path that includes said first position and said second position;

    a sensor for providing a first signal based on an orientation of said mass dropper with respect to vertical; and

    a gimbal for controlling the orientation of said mass dropper.

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