Games using tangible projectile – Projectile – per se; part thereof or accessory therefor – Comprising casing or cover having stitched seam or laced...
Patent
1997-09-08
1998-05-19
Wong, Steven B.
Games using tangible projectile
Projectile, per se; part thereof or accessory therefor
Comprising casing or cover having stitched seam or laced...
473604, A63B 4108
Patent
active
057528900
ABSTRACT:
A ball for ball game comprising: a leather skin layer formed by sewing a plurality of leather panels by a thread, the leather skin layer having a spherical shape; and a bladder made of an elastomer having a hollow spherical shape, the bladder being accomodated in the leather skin layer, the bladder being provided with a valve for feeding air into the rubber bladder, the bladder being charged with air through the valve; wherein the thread is made of a self-shrink thread which is subjected to a shrinking treatment after sewing.
REFERENCES:
patent: 4542902 (1985-09-01), Massino
patent: 4606544 (1986-08-01), Olazabal, Jr.
patent: 4830373 (1989-05-01), Dehnert et al.
patent: 4856781 (1989-08-01), Shishido et al.
Derwent Publications Ltd., London, GB; Section Ch, Week 9443, Sep. 1994.
Ikemoto Hisashi
Shishido Hideomi
Molten Corporation
Wong Steven B.
LandOfFree
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