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Practice golf club

  • US 5,868,634 A
  • Filed: 05/27/1997
  • Issued: 02/09/1999
  • Est. Priority Date: 05/27/1997
  • Status: Expired due to Fees
First Claim
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1. A practice golf club comprising:

  • a) a shaft having a first end, a second end, and an axis integrally positioned and extending longitudinally along said shaft;

    b) a handle affixed to said first end of said shaft;

    c) a centrifugally-activated mechanism affixed to said second end of said shaft opposite of said handle comprising;

    1) a piston disposed in a piston chamber, said piston integrally and longitudinally positioned with respect to said axis of said shaft;

    a. reciprocating action of said piston occurring along said axis of said shaft;

    b. a plurality of holding ball bearings attached to said piston accommodated by a plurality of holding receptacles disposed on an inner wall of said piston chamber to restrict movement of said piston without ample centrifugal force;

    2) said piston chamber having an upper piston chamber wall and a lower piston chamber wall;

    3) a spring disposed between said piston and said lower piston chamber wall;

    4) a lower contact conduit connected to said lower piston chamber wall, an upper contact conduit connected to the bottom of said piston, wherein the diameter of said lower contact conduit and said upper contact conduit are significantly smaller than diameter of said piston, wherein the diameter of said spring is larger than said diameters of said upper contact conduit and said lower contact conduit but smaller than diameter of said piston, allowing said upper and lower contact conduits to be inserted into each end of said spring thereby securing said spring between said piston and said lower piston chamber wall;

    5) a power supply;

    6) said power supply connected to a lamp receptacle via an electrical conduit, wherein said lamp receptacle accommodates a lamp;

    7) said lamp receptacle connected to said lower piston chamber wall via an electrical conduit, said lower piston chamber wall connected to said lower contact conduit;

    8) said power supply connected to a ball bearing via an electrical conduit, wherein when said practice golf club is swung generating sufficient centrifugal force, said plurality of holding ball bearings are loosened from said plurality of said holding receptacles, said piston is propelled away from said shaft and said upper contact conduit strikes said lower contact conduit, said piston comes into contact with said ball bearing, thereby allowing electricity to flow momentarily and activating said lamp momentarily, said spring causing said piston to reciprocate and strike against said upper piston chamber wall, thereby producing an audible sound to indicate the user of proper swing.

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