Tennis racquet swing training device

Details Tennis racquet swing training device Tennis racquet swing training device

1976-06-25

1977-12-20

Grieb, William H.

Amusement devices: games

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

Target

124 5, A63B 6938

Patent

active

040637301

ABSTRACT:
A tennis swing practice device includes a cylindrical guide receptacle of somewhat larger inside diameter than the diameter of a tennis ball medially releasably bolted to the head of a tennis racket and having a longitudinally forwardly facing end opening. Passage restrictions are located in the receptacle proximate the end opening so as to necessitate a minimum longitudinal force on a tennis ball in the receptacle for the tennis ball to be ejected from the receptacle attendant to the swinging of the racket. The restriction may be the head of a bolt securing the receptacle to the racket head or opposite forwardly converging shoulders located at the receptacle opening. The longitudinal axis of the receptacle is parallel to the racket striking face and may be at an angle of between 0.degree. and 60.degree. to the racket longitudinal axis.

REFERENCES:
patent: 1540823 (1925-06-01), Mairhofen
patent: 2465124 (1949-03-01), Quattria
patent: 2738976 (1956-03-01), Vallieres
patent: 2932514 (1960-04-01), Bergmark
patent: 2966280 (1960-12-01), Nelson
patent: 3115129 (1963-12-01), Merriman
patent: 3496924 (1970-02-01), Miller
patent: 3529589 (1970-09-01), Esser

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