Ball and method of making same

Details Ball and method of making same Ball and method of making same

1977-09-01

1979-04-17

Marlo, George J.

Amusement devices: games

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

Target

273DIG8, A63B 3700

Patent

active

041497201

ABSTRACT:
A ball is disclosed formed with a spherical core of polyurethane foam covered with a thin winding of cotton yarn and with a hand stitched outer cover; the ball is formed in a mold by providing a polymeric isocyanate with a mixture of water and a polyol crosslinking catalyst with the ratio between the isocyanate and the mixture of the catalyst and the water being variable to provide a ball of desired weight, resilience and density so that the ball formed by the method can duplicate such characteristics as found in regulation baseballs and softballs, for example.

REFERENCES:
patent: 1803121 (1931-04-01), Meurisse
patent: 2081531 (1937-05-01), Fegan
patent: 2138004 (1938-11-01), Grau
patent: 2743931 (1956-05-01), Pooley et al.
patent: 3069170 (1962-12-01), Dillon
patent: 3185476 (1965-05-01), Fechner
patent: 3518786 (1970-07-01), Holtvoigt
patent: 3644168 (1972-02-01), Bonk et al.
patent: 3940145 (1976-02-01), Gentiluomo
patent: 3976295 (1976-08-01), Heald

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