Amusement devices: games – Puzzles – Take-aparts and put-togethers
Patent
1983-10-17
1985-02-12
Marlo, George J.
Amusement devices: games
Puzzles
Take-aparts and put-togethers
273DIG12, 273 77A, A63B 5304
Patent
active
044986726
ABSTRACT:
Moldable golf club heads formed from a polypropylene plastic material encasing an elongated solid steel insert with a modulus of elasticity of approximately 30 million cycles per second and arranged with one end thereof extending one-eighth of an inch from the center of and substantially perpendicular to the striking face of the golf club head. The insert forms a part of the path for the shock wave produced when a ball having a resonant frequency of approximately 19 million cycles per second is struck by the head with the shock wave moving through the one-eighth of an inch of the plastic material, longitudinally through the insert to the head of the club and back the same path to point of impact whereby the density of the polypropylene and the insert being such that the recovery rate of flexure frequency of the head substantially equals the distortion frequency of the golf ball propelled from the club head.
REFERENCES:
patent: 1318325 (1919-10-01), Klin
patent: 1504380 (1924-08-01), Reitenour
patent: 2346617 (1944-04-01), Schaffer
patent: 2654608 (1953-10-01), Liebers
patent: 3266805 (1966-08-01), Bulla
patent: 3817522 (1974-06-01), Simmons
patent: 3863932 (1975-02-01), Lezatte
patent: 3989248 (1976-11-01), Campav
Lindsley Warren F. B.
Marlo George J.
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