Games using tangible projectile – Projectile – per se; part thereof or accessory therefor – Having hollow core or bladder enclosed within cover
Reexamination Certificate
2006-06-27
2006-06-27
Wong, Steven (Department: 3711)
Games using tangible projectile
Projectile, per se; part thereof or accessory therefor
Having hollow core or bladder enclosed within cover
C156S172000
Reexamination Certificate
active
07066853
ABSTRACT:
A method for manufacturing an inflatable ball has the following acts of: obtaining an inflatable bladder with a winding layer; coating thermoplastic glue on the winding layer; obtaining multiple thickened panels; coating thermoplastic glue on the thickened panels; arranging the thickened panels and the inflatable bladder inside a mold; and injecting thermal air into the inflatable bladder to make the winding layer combine with the multiple thickened panels. Wherein, each thickened panel is made of a leather layer and an optional filling layer and has a thickened middle area and multiple thinned edges around the thickened middle area. By eliminating the rubber layer in the prior arts, vulcanization is avoided. Moreover, heating the inflatable ball from inside of the mold avoids thermal deformation of outer pebbled patterns of the panels.
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Kamrath Alan D.
Nikolai & Mersereau , P.A.
Wong Steven
LandOfFree
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