Workout device for tennis having a variable speed control

Details Workout device for tennis having a variable speed control Workout device for tennis having a variable speed control

1976-03-22

1978-06-20

Pinkham, Richard C.

Amusement devices: games

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

Target

273 26E, 273 95A, A63B 6100

Patent

active

040957870

ABSTRACT:
A device for practicing tennis rebounds comprising an anchor or weighted base, a tennis ball and a generally elastic cord connected therebetween. The line or cord is provided with adjusting means for varying the length of the cord from a maximum length to one-half thereof, thereby enabling the ball return speed to be controlled by setting a desired or predetermined length for the elastic cord. The greater the length of the elastic cord, the slower the return of the tennis ball.

REFERENCES:
patent: 1708796 (1929-04-01), Lawrence
patent: 2139294 (1938-12-01), Weigant
patent: 2243620 (1941-05-01), Fernandec
patent: 2514840 (1950-07-01), Charles
patent: 2747873 (1956-05-01), Carroad
patent: 3200459 (1965-08-01), Hartman
patent: 3262703 (1966-07-01), Hodlick
patent: 3540726 (1970-11-01), Davis
patent: 3841631 (1974-10-01), Dolan
Mechanics Illustrated, Jan. 1971, p. 57.

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