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Pivoted lifting device

  • US 5,664,932 A
  • Filed: 09/20/1994
  • Issued: 09/09/1997
  • Est. Priority Date: 09/20/1994
  • Status: Expired due to Term
First Claim
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1. A pivoted lifting device comprising:

  • a frame, said frame including a pair of spaced apart support members having one end rotatable about a horizontal axis and another end;

    a drive mechanism connected to said frame for selectively rotating said other ends about said horizontal axis between an upright position and a downwardly angled position below the upright position;

    engagement members having an engagement surface, said engagement members having a mid-section pivotably connected to the other end of said support members and freely rotatable relative to said support members the engagement members having a first end and a second end, the second ends extend away from the frame, the engagement members having a rotating moment to encourage the engagement members to pivot in a predetermined direction to cause the second ends to move in a downward direction;

    limiting means mounted to the device for limiting the extent the second ends of the engagement members move in the downward direction relative to said support members whereby substantially the entire engagement surface is in contact with an article to be lifted prior to the article being displaced from an at rest position.

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