Games using tangible projectile – Projectile – per se; part thereof or accessory therefor – Having hollow core or bladder enclosed within cover
Patent
1998-07-30
2000-02-15
Wong, Steven
Games using tangible projectile
Projectile, per se; part thereof or accessory therefor
Having hollow core or bladder enclosed within cover
473599, A63B 4108
Patent
active
060246618
ABSTRACT:
A sweat-absorbing game ball comprises an inflatable rubber bladder and a synthetic leather cover which surrounds the bladder. The synthetic leather cover includes a base fabric of polyurethane-impregnated nonwoven nylon fibers and an outer coating of wet-coagulated polyurethane. A pebbled surface configuration is molded into the outer surface of the cover, and the pebbled surface includes a plurality of outwardly projecting pebbles. Each pebble includes an outer surface and a side surface, and a plurality of small openings are formed in the polyurethane outer coating on the side surfaces of the pebbles.
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Encyclopedia of Polymer Science and Engineering (1987), pp. 677-697.
Gaff Bradley Lee
Guenther Douglas G.
Wilson Sporting Goods Co.
Wong Steven
LandOfFree
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