Games using tangible projectile – Golf – Moving projectile responsive sensor or indicator
Patent
1996-09-09
1998-06-02
Marlo, George J.
Games using tangible projectile
Golf
Moving projectile responsive sensor or indicator
473281, 273DIG20, A63B 6936
Patent
active
057591091
ABSTRACT:
A simulated golf ball instructional device for use in practicing golf strokes which has a central body portion and two end portions. Each end portion has a length measured along the longitudinal axis of the device substantially equal to the radius of a conventional golf ball. The device has an overall length between about three and about five times the radius of a conventional golf ball. Satisfactory, improved and preferred overall lengths are disclosed, with the preferred overall length being substantially four times of radius of a conventional golf ball. One or both ends of the device have a generally hemispherical shape. The device is formed of a resilient, porous plastic open cell foam and is free of any covering skin that would substantially impede or prevent the passage of air from within the foam structure out into the space surrounding the simulated golf ball when a distorting force is applied to the device by a golf club. Several cross-sectional shapes for the central body portion of the device are disclosed, the preferred cross-sectional shape being square. In each case, the minimum transverse dimension of the central portion, measured through the central longitudinal axis of the device, is substantially equal to the diameter of a conventional golf ball.
REFERENCES:
patent: 1262532 (1918-04-01), McElroy
patent: 3851880 (1974-12-01), Ritch
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