Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Target
Patent
1978-09-05
1982-05-18
Phillips, Charles E.
Amusement devices: games
Aerial projectile game; game element or accessory therefor...
Target
A63B 5100
Patent
active
043301320
ABSTRACT:
A racquet in which the area of the string which manifests relatively true rebound of the ball, the so-called "sweet spot", is maximized. To achieve this condition the strings are so tensioned or so structured that the deflection produced by impact of the ball near the outer periphery of the racquet is substantially equal to the deflection near the center of the racquet. The strings may be subjected to lower tension near the outer periphery than near the center of the racquet or they may be of smaller thickness near the outer periphery than near the center or they may be differently irradiated. So as to achieve the different tensions with strings of a given diameter a plurality of separate short string lengths sections may be used or one or two long strings may be used and differently tensioned for each length. So that they maintain the set tension. Where long strings are used, the string sections of different tension are wedged in certain of the holes in the racquet frame, through which the string sections or string lengths are threaded or otherwise fastened.
REFERENCES:
patent: 801246 (1905-10-01), Johnson
patent: 1132214 (1915-03-01), Ries et al.
patent: 3917267 (1975-11-01), McGrath
patent: 3994495 (1976-11-01), Stoffel
patent: 4033582 (1977-07-01), Linden
Diamond Hymen
Phillips Charles E.
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