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Action device with confined action element

  • US 4,381,620 A
  • Filed: 11/27/1981
  • Issued: 05/03/1983
  • Est. Priority Date: 11/27/1981
  • Status: Expired due to Fees
First Claim
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1. A rotatable hollow ball action device comprising:

  • a hollow transparent ball having an inner peripheral surface;

    an action element having a spindle of a length slightly less than the diameter of said inner peripheral surface, said spindle having end portions thereof bearing upon and in rolling engagement with diametrically opposed predetermined portions only of said inner peripheral surface; and

    means on said inner peripheral surface for confining movement of each of said spindle end portions to said predetermined portions whereby primarily spinning and limited rocking motion is imparted to said action element upon rotation of said ball.

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