×

Weight lifting apparatus having increased force on the return stroke

  • US 4,563,003 A
  • Filed: 04/15/1983
  • Issued: 01/07/1986
  • Est. Priority Date: 04/15/1983
  • Status: Expired due to Fees
First Claim
Patent Images

1. A weight-lifting apparatus operable by a person for weight training comprising:

  • a frame;

    a plurality of weights mounted on said frame for generally vertical reciprocal movement from a rest position upwardly against gravity force to an upper position during a lifting stroke, and downwardly from said upper position under said gravity force to said rest position during a negative stroke;

    actuating means operable to lift said weights against said gravity force and lower said weights under said gravity force; and

    ;

    means imposing a force in addition to said gravity force of said weights on said actuating means during at least a portion of said downward movement of said weights to provide for restraint of a greater force on the negative stroke than on the lifting stroke.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×