Bowling ball

Details Bowling ball Bowling ball

1977-11-14

1978-12-26

Van Balen, William J.

Amusement devices: games

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

Target

273 63E, 273 63G, 264254, 264255, 428218, 428480, A63B 3714

Patent

active

041312775

ABSTRACT:
A bowling ball has a surface made from a material containing a minor quantity of functionally terminated liquid elastomer combined with a major quantity of resin-forming material reactive with the functional end groups of the elastomer, and has a greatly enhanced coefficient of friction against ordinary bowling lane surfaces, permitting superior control of the path of the ball and therefore better scores by the bowler. Such surface compositions are preferably made from a liquid polyester resin of the type which is hardenable by a peroxide, with addition of a liquid vinyl-terminated diene polymer or copolymer in a quantity amounting to about 10% to 35% of the mixture.

REFERENCES:
patent: 3206201 (1965-09-01), Hendricks
patent: 3248113 (1966-04-01), Baggenstoss et al.
patent: 3256018 (1966-06-01), Baggenstoss
patent: 3350252 (1967-10-01), Twickler
patent: 3703571 (1972-11-01), Roberts
patent: 3865369 (1975-02-01), Randolph

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