Game ball
AssigneeHome of Champions, S.A.
InventorJulius Tomar
Life of this patent
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Abstract
A game ball is comprised of a single spherical core and a cover. The core is comprised of a single spherical mass of partially blown copolymer of ethylene and at least one unsaturated monocarboxylic acid having from 3 to 8 carbon atoms. The copolymer contains up to 30 percent by weight of the acid copolymerized therein with foam at the center of the core and having a skin with the density substantially equal to the density of the copolymer. The game balls are baseballs and softballs.
Claims5
In a game ball comprised of a spherical core and a cover, the improvement wherein said core is comprised of a partially blown single spherical mass of at least 10 percent by weight of a copolymer of ethylene and at least one unsaturated monocarboxylic acid having from 3 to 8 carbon atoms, said copolymer containing up to 30 percent by weight of said acid copolymerized therein with foam at the center of said core and having a skin with a density substantially equal to the density of said copolymer, said copolymer being crosslinked with thermolabile crosslinkages.
Dependencies are inferred from the claim text.