Golf ball core
First Claim
Patent Images
1. A golf ball core for use in a multi-piece golf ball, the core comprising:
- a solid sphere substantially formed from an ionomeric material, the solid sphere having a diameter (D) of between 24 mm and 32 mm;
between 100 and 300 spaced polygonal protrusions each being substantially formed from the ionomeric material and respectively extending from the solid sphere in a radially outward direction by a maximum distance of between 0.15 mm and 1.0 mm, wherein the solid sphere and the polygonal protrusions cooperate to define a geometric center of the core, the spaced polygonal protrusions including;
a first set of polygonal protrusions with a first number of straight edges, a second set of polygonal protrusions with a second number of straight edges, and a third set of polygonal protrusions with a third number of straight edges, the first, second and third numbers of straight edges being distinct from one another; and
a plurality of grooves separating the respective polygonal protrusions, wherein the plurality of grooves includes;
a first set of annular grooves disposed about a first axis, a second set of annular grooves disposed about a second axis, and a third set of annular grooves disposed about a third axis, wherein the first axis, the second axis, and the third axis are mutually orthogonal;
wherein the polygonal protrusions having the first number of straight edges are arranged in annular rows each coterminous with at least one of the sets of annular grooves;
wherein the polygonal protrusions having the second number of straight edges are arranged in octants each delineated by the first, second and third sets of annular grooves;
wherein each of the grooves is defined by an outer surface of the solid sphere that faces away from the geometric center of the core; and
wherein the outer surface includes respective surfaces defining the polygonal protrusions and respective surfaces defining the grooves.
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Abstract
A golf ball core for use in a multi-piece golf ball includes a solid sphere and between 100 and 300 spaced polygonal protrusions extending from the solid sphere in a radially outward direction. The sphere is substantially formed from an ionomeric material, and has a diameter (D) of between 24 mm and 32 mm. The polygonal protrusions extend from the sphere by a maximum distance of between 0.15 mm and 1.0 mm.
59 Citations
26 Claims
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1. A golf ball core for use in a multi-piece golf ball, the core comprising:
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a solid sphere substantially formed from an ionomeric material, the solid sphere having a diameter (D) of between 24 mm and 32 mm; between 100 and 300 spaced polygonal protrusions each being substantially formed from the ionomeric material and respectively extending from the solid sphere in a radially outward direction by a maximum distance of between 0.15 mm and 1.0 mm, wherein the solid sphere and the polygonal protrusions cooperate to define a geometric center of the core, the spaced polygonal protrusions including;
a first set of polygonal protrusions with a first number of straight edges, a second set of polygonal protrusions with a second number of straight edges, and a third set of polygonal protrusions with a third number of straight edges, the first, second and third numbers of straight edges being distinct from one another; anda plurality of grooves separating the respective polygonal protrusions, wherein the plurality of grooves includes;
a first set of annular grooves disposed about a first axis, a second set of annular grooves disposed about a second axis, and a third set of annular grooves disposed about a third axis, wherein the first axis, the second axis, and the third axis are mutually orthogonal;wherein the polygonal protrusions having the first number of straight edges are arranged in annular rows each coterminous with at least one of the sets of annular grooves; wherein the polygonal protrusions having the second number of straight edges are arranged in octants each delineated by the first, second and third sets of annular grooves; wherein each of the grooves is defined by an outer surface of the solid sphere that faces away from the geometric center of the core; and wherein the outer surface includes respective surfaces defining the polygonal protrusions and respective surfaces defining the grooves. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A golf ball comprising:
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a cover layer; a core encased within the cover layer, the core including; a solid sphere formed, in whole or in part, from an ionomeric material, the solid sphere having a diameter (D) of between about 24 mm and about 32 mm; a plurality of polygonal protrusions spaced around the outer surface of the solid sphere, each of the protrusions being formed, in whole or in part, from the ionomeric material and respectively extending from the solid sphere in a radially outward direction by a maximum distance of between about 0.15 mm and about 1.0 mm, the polygonal protrusions including;
a first set of polygonal protrusions with a first number of straight edges, a second set of polygonal protrusions with a second number of straight edges distinct from the first number, and a third set of polygonal protrusions with a third number of straight edges distinct from the first and second numbers, wherein the solid sphere and the polygonal protrusions cooperate to define a geometric center of the core; anda plurality of grooves separating the respective polygonal protrusions, wherein the plurality of grooves includes;
a first set of annular grooves disposed about a first axis, a second set of annular grooves disposed about a second axis, and a third set of annular grooves disposed about a third axis, wherein the first axis, the second axis, and the third axis are mutually orthogonal;wherein the polygonal protrusions having the first number of straight edges are arranged in annular rows each coterminous with at least one of the sets of annular grooves; wherein the polygonal protrusions having the second number of straight edges are arranged in octants each separated by the first, second and third sets of annular grooves; wherein each of the grooves is defined by an outer surface of the solid sphere that faces away from the geometric center of the core; and wherein the outer surface includes respective surfaces defining each of the polygonal protrusions and respective surfaces defining each of the grooves. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification