Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Target
Patent
1993-08-05
1996-09-24
Thibodeau, Paul
Amusement devices: games
Aerial projectile game; game element or accessory therefor...
Target
273DIG4, 273DIG5, 273 58B, 273 61R, 273 58J, 428 364, 428 357, 428 368, B32B 108, A63B 3900
Patent
active
055583253
ABSTRACT:
A hollow rubber play ball is disclosed that uses a combination two or more fillers to produce desirable playing properties in a tennis ball as specified by the International Lawn Tennis Federation (ITF). The preferred play ball is a pressureless tennis ball. The specific fillers disclosed are mineral type particulate reinforcing fillers such as silicas and carbon black, polymeric fillers such as cellulose, a reaction product of grafting polyethylene with cellulose, and ethylene-vinyl acetate copolymers. These fillers can also have surface treatments to enhance the elastomer-filler interaction. Another reinforcing filler that can be introduced with the rubber components is the non-rubber constituents in skim rubber that serve to increase the modulus of a compounded rubber.
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Hargis I. Glen
Miranda Richard A.
Wilson John A.
Yeoh Oon H.
Critharis Mary
GenCorp Inc.
Laferty Samuel B.
Rywalski Robert F.
Thibodeau Paul
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