Apparatus for controlling moves of a ball-hitting instrument in

Details Apparatus for controlling moves of a ball-hitting instrument in Apparatus for controlling moves of a ball-hitting instrument in

1987-06-23

1990-03-27

Coven, Edward M.

Amusement devices: games

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

Target

273 73R, 273 26B, 273 54B, 273186R, 273186A, 273183B, A63B 6100

Patent

active

049114417

ABSTRACT:
A ball-hitting instrument for playing ball games, comprises a handle and a flat head part (preferably a tennis racket bearing a screen in the head part) and an apparatus for programming and controlling the seizing of the handle and the guiding of the instrument during a player's motions for hitting a ball. The apparatus is mounted on the handle and contains an electronic circuit comprising an on-off switch, a perceivable signals-emitting device such as a buzzer, an integrated circuit chip, a potentiometer and four noiseless, quick-response switches each having a travel path and a circuit-making mercury or magnetic body movable back and forth along that path to make or break circuit.

REFERENCES:
patent: 3766538 (1973-10-01), Dealy
patent: 3788647 (1974-01-01), Evans
patent: 4094504 (1978-06-01), Barasch
patent: 4330123 (1982-05-01), Kleinerman
patent: 4515368 (1985-05-01), Pititjean
patent: 4535986 (1985-08-01), Richards

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