Ball bat

Details Ball bat Ball bat

1988-10-20

1989-10-03

Coven, Edward M.

Amusement devices: games

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

Target

273 72R, 273186A, 73443, 73515, 116272, 272124, 272DIG5, A63B 6940

Patent

active

048711683

ABSTRACT:
A hollow plastic ball bat has an internally mounted swing metering device that provides a visual indication of swing velocity. The bat is defined by inner and outer members that are coupled to one another to define a recess that receives a transparent annular barrel. A bore in this barrel has a weighted piston that moves in the bore, as a result of its inertia, During a swinging or other movement of the bat itself.

REFERENCES:
patent: 1779685 (1929-08-01), Washburne
patent: 2780098 (1957-02-01), Maroth
patent: 3097534 (1963-07-01), Pasieka
patent: 3578801 (1971-05-01), Piazza
patent: 4267793 (1981-05-01), Lone et al.
patent: 4377125 (1983-03-01), Westfall
patent: 4759219 (1988-07-01), Cobb et al.

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