Amusement devices: games – Board games – pieces – or boards therefor – Rotatably mounted board
Patent
1994-12-28
1996-02-13
Marlo, George J.
Amusement devices: games
Board games, pieces, or boards therefor
Rotatably mounted board
273230, 273235R, A63B 3706
Patent
active
054906741
ABSTRACT:
The present invention provides a solid golf ball having excellent flying performances, stability upon iron shot and good hit feeling.
A solid core 1 comprising an center 1a and an outer shell 1b is coated with a cover 2 to give a three-piece solid golf ball. The center 1a has a diameter of 30.7 to 39.5 mm, a stiffness of 300 to 2,500 kgf/cm.sup.2 and a shore D hardness of 30 to 55. The outer layer core 1b has a thickness of 1.0 to 4.0 mm, a stiffness of 2,500 to 6,000 kgf/cm.sup.2 and a shore D hardness of 55 to 75. The composition of both cores is a butadiene rubber. The cover 2 has a thickness of 0.6 to 2.0 mm, a stiffness of 1,000 to 2,500 kgf/cm.sup.2 and a shore D hardness of 40 to 55. The composition of the cover is an ionomer resin or a mixture of the ionomer resin and a flexible resin.
REFERENCES:
patent: 4714253 (1987-12-01), Nakahara et al.
patent: 4986545 (1991-01-01), Sullivan
patent: 5184828 (1993-02-01), Kim et al.
Hamada Akihiko
Hiraoka Hidenori
Koizumi Yoshimasa
Yabuki Yoshikazu
Marlo George J.
Sumitomo Rubber Industries Ltd.
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