Games using tangible projectile – Projectile – per se; part thereof or accessory therefor – Comprising casing or cover having stitched seam or laced...
Patent
1996-12-24
1998-06-02
Brown, Theatrice
Games using tangible projectile
Projectile, per se; part thereof or accessory therefor
Comprising casing or cover having stitched seam or laced...
A63B 4110
Patent
active
057591237
ABSTRACT:
A sewing rubber American football includes a rubber made ball cover having a valve hole thereon and a rubber bladder, which is disposed within the ball cover, having a predetermined shape and a valve stem mounted thereon and extended through the valve hole of the ball cover. The ball cover includes four elliptical cover pieces sewn edge to edge together. Each cover piece includes an outer elliptical rubber skin and an inner elliptical fabric pad integrally attached underneath the rubber skin. A top surface of the rubber skin provides a plurality of protruding pebbles evenly distributed all over the top surface. The rubber skin has a coarse bottom surface full of bumps and dents for gripping with the fiber of the fabric pad so as to firmly united with the fabric pad. Thereby, the rubber skin is reinforced by the fabric pad to form the tough and rigid cover piece which is able to be sewn easily. A ball cover made of such cover pieces is easily be grasped and thus has good slippery resistibility.
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patent: 4305583 (1981-12-01), Tandon
patent: 4660831 (1987-04-01), Kralik
patent: 4998728 (1991-03-01), Traub
Brown Theatrice
Chan Raymond Y.
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