Games using tangible projectile – Golf – Practice swingable implement or indicator associated with...
Patent
1996-09-09
2000-08-22
Grieb, William H.
Games using tangible projectile
Golf
Practice swingable implement or indicator associated with...
473137, A63B 6936
Patent
active
061064076
ABSTRACT:
A golf ball practice and swing analyzer that incorporates a golf ball positioner that swings in a vertical plane and resides only momentarily adjacent the tee and then retracts upwardly, thus permitting the golfer to begin his or her swing the instant the ball positioner begins to move upwardly, combined with systems for determining and displaying the two most important, and largely determinative characteristics of the golfer's swing, the swing speed and swing time, in a very economical design criteria is disclosed.
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patent: 5108105 (1992-04-01), Shimizu
patent: 5423538 (1995-06-01), Stewart
patent: 5549518 (1996-08-01), Wang
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