Games using tangible projectile – Golf – Club or club support
Patent
1995-08-17
1997-03-25
Graham, Mark S.
Games using tangible projectile
Golf
Club or club support
473333, A63B 5304
Patent
active
056139160
ABSTRACT:
Sports equipment for ball games comprising a stroke portion and a shaft portion including a grip, in particular a tennis racket or a golf club, wherein mass particles are integrated into the equipment structure which are freely displaceable or freely movable thereto and which are provided in one or a plurality of chambers the volume of each of said chambers being small relative to the interior volume of the stroke and/or the shaft portion. The stroke characteristics of the sports equipment can be varied depending from the distribution of the chambers within the structure and/or from the amount of the mass particles used. Stroke shocks are attenuated with the result that occurrence of "tennis elbow" is diminished. Indicated is also a method for the manufacture of a tennis racket having high shock absorption and good oscillation attenuation properties and being manufactured in fiber-plastics-structure techniques.
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patent: 690940 (1902-01-01), Febiger
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patent: 2592013 (1952-04-01), Curley
patent: 3589731 (1971-06-01), Chancellor
patent: 4541631 (1985-09-01), Sasse
patent: 4655458 (1987-04-01), Lewandowski
patent: 5121922 (1992-06-01), Harsh, Sr.
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