Softball

Details Softball Softball

1987-11-30

1989-06-20

Marlo, George J.

Amusement devices: games

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

Target

B29C 2708

Patent

active

048403784

ABSTRACT:
A softball having a core and a cover wherein the ball has a circumference of approximately 12 inches, a weight of 175 to 178 grams, a coefficient of restitution of approximately 0.478 and a compression from about 0.010 to 0.014 inches, wherein said core has a density from about 15.5 to 16.5 pounds per cubic foot, and a hardness from about 72 to 78 on the shore A scale, said core being formed from a cellular polymeric material. The core is surrounded by a cover having a specific gravity of about 1.2, a thickness from about 0.035 inches to 0.060 inches and a hardness from about 78 to 90 on the Shore A scale. The cover is formed from a vinyl resin, a phthalate compound, stabilizers and a titanium dioxide dispersion.

REFERENCES:
patent: 3976295 (1976-08-01), Heald, Jr.
patent: 4211407 (1980-07-01), Tomar
patent: 4462589 (1984-07-01), Morgan
patent: 4498667 (1985-02-01), Tomar
patent: 4529200 (1985-07-01), Miller et al.
patent: 4572507 (1986-02-01), Hubbert et al.
patent: 4610071 (1986-09-01), Miller
patent: 4653752 (1987-03-01), Miller
patent: 4725058 (1988-02-01), Molitor

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