Elastomeric ball and method of manufacturing same
First Claim
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1. A method of manufacturing a ball, comprising:
- forming a pair of half shells of an outer shell by molding a first thermoplastic material, wherein the inner surface of the half shells define corresponding portions of a cavity within the outer shell;
forming outer details on at least a portion of the outer surface of at least one of the half shells but less than the entire outer surface of the half shell by molding a second thermoplastic material onto the outer surface of the at least one of the half shells; and
foaming a polymeric material within the cavity of the outer shell to form a core of foamed polymeric material within the cavity of the outer shell.
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Abstract
The present invention is directed to a ball including an outer shell formed from a first thermoplastic material and having an inner surface defining a cavity, outer details formed from a second thermoplastic material and disposed on at least a portion of the outer surface of the outer shell, and a core formed from a foamable polymeric material and disposed within the cavity of the outer shell. The ball may be produced by forming a pair of half shells having inner surfaces defining corresponding portions of the cavity of the outer shell, forming the outer details on the outer surface of at least one of the half shells, and foaming a polymeric material to form the core.
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Citations
14 Claims
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1. A method of manufacturing a ball, comprising:
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forming a pair of half shells of an outer shell by molding a first thermoplastic material, wherein the inner surface of the half shells define corresponding portions of a cavity within the outer shell; forming outer details on at least a portion of the outer surface of at least one of the half shells but less than the entire outer surface of the half shell by molding a second thermoplastic material onto the outer surface of the at least one of the half shells; and foaming a polymeric material within the cavity of the outer shell to form a core of foamed polymeric material within the cavity of the outer shell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification