Tennis racket

Details Tennis racket Tennis racket

1993-04-08

1994-04-26

Stoll, William

Amusement devices: games

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

Target

A63B 4902

Patent

active

053060059

ABSTRACT:
A generally oval tennis racket characterized in that its strung surface comprises five zones: a central zone (A) including the geometric center (M) and the center of percussion (P) and having at least three cross strings; and on either side thereof two zones (B and C) each having at least three cross strings whose average length exceeds that of the cross string in the central zone (A). This construction increases the area (sweet spot) over which resilience is substantially uniform.

REFERENCES:
patent: 801246 (1905-10-01), Johnson
patent: 1694360 (1928-12-01), Larned
patent: 2626804 (1953-01-01), Robinson
patent: 3664668 (1972-05-01), Held
patent: 4834383 (1989-05-01), Woehrle et al.
patent: 5137273 (1992-08-01), Jseng

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