Three-piece solid golf ball

Details Three-piece solid golf ball Three-piece solid golf ball

1990-02-27

1991-03-26

Marlo, George J.

Amusement devices: games

Board games, pieces, or boards therefor

Rotatably mounted board

273218, 273235R, 273230, A63B 3712

Patent

active

050022814

ABSTRACT:
Disclosed is a three-piece solid golf ball comprising a solid core consisting of an inner core and an outer shell surrounding said inner core, and a cover covering said solid core, characterized in that a diameter of said inner core is 29 to 36 mm, a diameter of said solid core is 37 to 41 mm, a central hardness (JIS-C) of the inner core is 25 to 70, a surface hardness (JIS-C) of said outer shell is 80 to 95, a difference between said central hardness of the inner core and said surface hardness of the outer shell is 10 or more, and the relation between the specific gravity of the inner core and the specific gravity of the outer shell satisfies 1.0 <a specific gravity of the inner core .ltoreq.a specific gravity of the outer shell <1.3.

REFERENCES:
patent: 3313545 (1967-04-01), Bartsch
patent: 3784209 (1974-01-01), Berman et al.
patent: 4570937 (1986-02-01), Yamada
patent: 4625964 (1986-12-01), Yamada
patent: 4919434 (1990-04-01), Saito

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