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US 6,071,201 AGranted
Solid golf ball
AssigneeBridgestone Sports Co., Ltd.
InventorTakashi Maruko
Life of this patent
Estimating the term…
Abstract
A solid golf ball comprises a solid core and a cover. The solid core has a multilayer construction with an inner core layer and an outer core layer. The inner core layer is composed primarily of a resin, and has a diameter of 15-25 mm and a Shore D hardness of 55-90. The outer core layer is formed of a polybutadiene base rubber composition and has a JIS-C hardness of 35-75. The cover has a thickness of 0.5-3 mm. The ball provides an increased carry when hit by a low head speed player, as well as better durability and feel.
Claims13
A solid golf ball comprising;
- a solid core and a cover enclosing the solid core, said solid core having a multilayer construction consisting of an inner core layer and an outer core layer enclosing the inner core layer, wherein
- said inner core layer comprises a resin and has a diameter in the range of 15 to 25 mm, a Shore D hardness in the range of 55 to 90, and a specific gravity of higher than a specific gravity of the outer core layer, said outer core layer is formed of a polybutadiene base rubber composition and has a JIS-C hardness in the range of 35 to 75, and
- said cover has a thickness in the range of 0.5 to 3 mm.
Dependencies are inferred from the claim text.