Game ball

Details Game ball Game ball

1978-09-18

1980-07-08

Marlo, George J.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

273DIG4, 273DIG5, 273DIG11, A63B 3706

Patent

active

042114071

ABSTRACT:
Baseballs and softballs are comprised of a spherical core and a two-piece cover. The core consists essentially of a single spherical mass of partially blown ethylene vinyl acetate copolymer having 12 percent to 30 percent by weight of polymerized vinyl acetate units therein. Foam is in the center of the core which gradually reduces in cell size radially outwardly to a skin having a density substantially equal to the density of said copolymer.

REFERENCES:
patent: 1345904 (1920-07-01), Wishart
patent: 3268636 (1966-08-01), Angell
patent: 3313545 (1967-04-01), Bartsch
patent: 3652088 (1972-03-01), Marsh
patent: 3976295 (1976-08-01), Heald
Imperial Chemical Industries Limited, Technical Service Note A113, "Alkathene", Dec. 1974.
Introduction to Rubber Technology, Morton, p. 26, Reinhold Publishing Corp., New York 1964.

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