Tennis racket

Details Tennis racket Tennis racket

1992-07-29

1994-05-10

Millin, Vincent

Amusement devices: games

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

Target

A63B 4902

Patent

active

053101790

ABSTRACT:
In construction of a tennis racket provided with an oval Head Frame defining a racket face, the longitudinal size (W.sub.1) of the racket face is set to a value in a range from 320 to 390 mm, the transverse size (W.sub.2) of the same is set to a value in a range from 200 to 240 mm, and the longitudinal compressive rigidity of the head frame is adjusted to a value in a range from 30 to 200 Kgf/mm. The construction thus specified allows employment of an enlarged main/cross string tension ratio which assures high degree of spin performance at shooting balls.

REFERENCES:
patent: 4437662 (1984-03-01), Soong
patent: 4512575 (1985-04-01), Tzeng
patent: 4662634 (1987-05-01), Winkler
patent: 4834383 (1989-05-01), Wuehrle et al.
patent: 4964635 (1990-10-01), Fitzgerald
patent: 4997186 (1991-03-01), Carr

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