Tennis racket

Details Tennis racket Tennis racket

1994-12-09

1995-11-28

Stoll, William E.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

273 73C, A63B 4904

Patent

active

054700620

ABSTRACT:
In construction of a tennis racket having a frame top and a yoke, balance adjusters having specific gravities larger than that of a frame are arranged at the frame top and the yoke, respectively, with a specified mass ratio between the two balance adjusters. Repulsion characteristics are much improved and vibratory impact is mitigated even at off-spot shooting whilst assuring long and speedy fly of balls with reduced physical damages on players.

REFERENCES:
patent: 3801099 (1974-04-01), Lair
patent: 3913911 (1975-10-01), Peterson
patent: 4027881 (1977-06-01), Hefenus
patent: 4153249 (1979-05-01), Plagenhoef
patent: 4182512 (1980-01-01), Kuebler
patent: 4192505 (1980-03-01), Tabickman
patent: 4196901 (1980-04-01), Durbin
patent: 4353551 (1982-10-01), Arieh et al.
patent: 4693474 (1987-09-01), Glaessgen et al.
patent: 5054780 (1991-10-01), Chen
patent: 5083777 (1992-01-01), Held
patent: 5110126 (1992-05-01), Knebler

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