Appeal No. 2002-1031
Application 09/129,883
Appealed Claims 4 and 16
Independent claim 4 is directed to a multi-piece solid golf
ball comprising a solid core and a cover consisting of inner and
outer layers surrounding the core, wherein the outer cover layer
has a surface formed with a plurality of dimples. The solid core
is required to have a distortion of 2.8 to 6.5 mm under an
applied load of 100 kg. The claim calls for (a) the product of
the Shore D hardness of the inner cover layer multiplied by the
Shore D hardness of the outer cover layer (hereinafter, product
of hardnesses) and (b) a proportion VR (%) of the total of the
volumes of dimple spaces each defined below a plane circumscribed
by the dimple edge to the overall volume of a phantom sphere
given on the assumption that the golf ball surface is free of
dimples (hereinafter, VR) to be such that they satisfy any one of
the following combinations (1) to (5):
(1) product of hardnesses: 1,500 to less that 2,000
VR: 0.8 to 0.93%
(2) product of hardnesses: 2,000 to less that 2,500
VR: 0.75 to 1.05%
(3) product of hardnesses: 2,500 to less that 3,000
VR: 0.7 to 1%
(4) product of hardnesses: 3,000 to less that 3,500
VR: 0.65 to 0.95%
3
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