Ball-game racket, in particular a tennis racket

Details Ball-game racket, in particular a tennis racket Ball-game racket, in particular a tennis racket

1997-03-19

1998-07-14

Stoll, William E.

Games using tangible projectile

Player held and powered, nonmechanical projector, per se,...

With user shiftable, adjustable, or interchangeable weight...

A63B 4902

Patent

active

057795711

ABSTRACT:
A ball-game racket, in particular a tennis racket, having a racket head consisting of a tension frame and netting and having a shaft (6) with handle extending away from the racket head, has at least one spring-mass system which is provided on one side of a midplane enclosing the longitudinal axis of the shaft and arranged perpendicular to the plane of the netting and has, in a movement channel extending from the handle into the racket head, at least one mass weight which is movable in the longitudinal direction of the channel against the action of a spring element between a starting position in the handle and an end position in the racket head.

REFERENCES:
patent: 3116926 (1964-01-01), Owen et al.
patent: 3907292 (1975-09-01), Moreland
patent: 3975018 (1976-08-01), Walker
patent: 4325549 (1982-04-01), Vasselli
patent: 4984792 (1991-01-01), Pacanski
patent: 5174568 (1992-12-01), You

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