Games using tangible projectile – Golf – Ball
Patent
1997-10-30
1999-08-31
Marlo, George J.
Games using tangible projectile
Golf
Ball
473370, A63B 3706
Patent
active
059446218
ABSTRACT:
The present invention provides a hollow golf ball having a spherical cavity in the center, which exhibits excellent durability and less impact strength to result in excellent shot feel without degrading flight performance, and the production of the same. The hollow golf ball includes: (a) hollow center formed from a material selected from the group consisting of rubber, thermoplastic resin and a mixture thereof, the hollow center having a hollow portion with a diameter of 5 to 30 mm; (b) at least one core rubber layer, formed on said hollow center, the core rubber layer being obtained by vulcanizing a rubber composition which comprises a base rubber, a metal salt of an unsaturated carboxylic acid, an organic peroxide and filler; and (c) a cover formed on said core rubber layer.
REFERENCES:
patent: 703239 (1902-06-01), Davis
patent: 707263 (1902-08-01), Saunders
patent: 5439227 (1995-08-01), Egashira et al.
Hochi Kazuo
Maruoka Kiyoto
Moriyama Keiji
Tsujinaka, deceased Hiroyuki
Tsujinaka, legal representative Kinuko
Marlo George J.
Sumitomo Rubber Industries Ltd.
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