Bowling ball having high density counterweight

Details Bowling ball having high density counterweight Bowling ball having high density counterweight

1990-09-28

1992-03-17

Marlo, George J.

Amusement devices: games

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

Target

273DIG20, A63B 3702, A63B 3712

Patent

active

050961934

ABSTRACT:
A balanced bowling ball having a core and a shell, and including a counterweight nugget positioned intermediate the bowling ball thumb and finger grip holes. The counterweight nugget comprises a non-metallic material, including refractory tungsten carbide suspended in a matrix of thermoplastic binder, having a density at least an order or magnitude greater than the density of the shell and core materials. The counterweight nugget is disposed within a depression on the core in one embodiment and in a depression in the shell in another embodiment. Alternative methods of manufacturing each embodiment and the material forming the counterweight nugget are also disclosed.

REFERENCES:
patent: 4320899 (1982-03-01), Salvino
patent: 4522397 (1985-06-01), Miller et al.

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