Amusement devices: games – Surface projectile game; game element – Simulated game
Patent
1975-09-19
1977-06-07
Marlo, George J.
Amusement devices: games
Surface projectile game; game element
Simulated game
273 1M, A63B 6936
Patent
active
040278867
ABSTRACT:
This invention relates to a device for measuring the rhythm and impact timing in golf club swings by noting the golfer's swing position corresponding to the collision of a movable tube with a stopper tube both located on the golf club shaft. Said movable tube is initially held against a magnetic element positioned at the upper grip portion of the tube, said magnetic element capable of being varied in its magnetic attractive, force. The movable tube is moved from said magnetic element due to centrifugal force during the golfer's swing.
REFERENCES:
patent: 2135648 (1938-11-01), Stumpf
patent: 3113782 (1963-12-01), Guier
patent: 3136553 (1964-06-01), Davis
patent: 3360268 (1967-12-01), Molinari
patent: 3433478 (1969-03-01), Span et al.
Marlo George J.
Pearlman Robert I.
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