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US 2014/0045622 A1Published application
Golf Ball With Two Soft Layers And One Hard Layer
AssigneeNIKE, Inc.
InventorArthur Molinari
Life of this patent
Estimating the term…
Abstract
A golf ball is provided that has a certain relationship among the hardness values of its various layers. The golf ball may have a four-piece construction, including an inner core, an outer core, a mantle layer, and the cover layer. Of the inner core, outer core, and mantle layer, two may be considered soft while one may be considered hard. The inner core may be made from a highly neutralized polymer.
Claims20
A golf ball comprising:
- an inner core, the inner core encompassing a center of the golf ball and being comprised of a highly neutralized polymer;
- an outer core, the outer core being positioned radially outward of the inner core and substantially surrounding the inner core, the outer core being comprised of a rubber;
- a mantle layer, the mantle layer being positioned radially outward of the outer core and substantially surrounding the outer core, the mantle layer being comprised of an ionomer;
- and
- a cover layer, the cover layer being positioned radially outward of the mantle layer and substantially surrounding the mantle layer;
- wherein at least two of the inner core, the outer core, and the mantle layer are soft;
- and at least one of the inner core, the outer core, and the mantle layer are hard;
- and
- wherein a soft inner core has an average cross-sectional hardness of from about 50 to less than about 72.5 JIS C, a hard inner core has an average cross-sectional hardness of from about 72.5 to about 95 JIS C, a soft outer core has an average cross-sectional hardness of from about 50 to about 83 JIS C, a hard outer core has an average cross-sectional hardness of from more than about 83 to about 95 JIS C, a soft mantle layer has an average cross-sectional hardness of from about 50 to about 86.5 JIS C, and a hard mantle layer has an average cross-sectional hardness of from more than about 86.5 to about 95 JIS C.
6 more elements
A golf ball comprising:
- an inner core, the inner core encompassing a center of the golf ball and being comprised of a highly neutralized polymer;
- an outer core, the outer core being positioned radially outward of the inner core and substantially surrounding the inner core, the outer core being comprised of a rubber;
- a mantle layer, the mantle layer being positioned radially outward of the outer core and substantially surrounding the outer core, the mantle layer being comprised of an ionomer;
- and
- a cover layer, the cover layer being positioned radially outward of the mantle layer and substantially surrounding the mantle layer;
- wherein the inner core has an average cross-sectional hardness of from about 70 to less than about 72.5 JIS C, the outer core has an average cross-sectional hardness of from about 80 to about 83 JIS C, and the mantle layer has an average cross-sectional hardness of from more than about 86.5 to about 91 JIS C.
3 more elements
A golf ball comprising:
- an inner core, the inner core encompassing a center of the golf ball and being comprised of a highly neutralized polymer;
- an outer core, the outer core being positioned radially outward of the inner core and substantially surrounding the inner core, the outer core being comprised of a rubber;
- a mantle layer, the mantle layer being positioned radially outward of the outer core and substantially surrounding the outer core, the mantle layer being comprised of an ionomer;
- and
- a cover layer, the cover layer being positioned radially outward of the mantle layer and substantially surrounding the mantle layer;
- wherein the inner core has an average cross-sectional hardness of from about 70 to about 72.5 JIS C, the outer core has an average cross-sectional hardness of from more than about 83 to about 85 JIS C, and the mantle layer has an average cross-sectional hardness of from about 82 to about 86.5 JIS C.
3 more elements
A golf ball comprising:
- an inner core, the inner core encompassing a center of the golf ball and being comprised of a highly neutralized polymer;
- an outer core, the outer core being positioned radially outward of the inner core and substantially surrounding the inner core, the outer core being comprised of a rubber;
- a mantle layer, the mantle layer being positioned radially outward of the outer core and substantially surrounding the outer core, the mantle layer being comprised of an ionomer;
- and
- a cover layer, the cover layer being positioned radially outward of the mantle layer and substantially surrounding the mantle layer;
- wherein the inner core has an average cross-sectional hardness of from about 72.5 to about 76 JIS C, the outer core has an average cross-sectional hardness of from about 80 to about 83 JIS C, and the mantle layer has an average cross-sectional hardness of from about 82 to about 86.5 JIS C.
3 more elements
A golf ball comprising:
- an inner core, the inner core encompassing a center of the golf ball and being comprised of a highly neutralized polymer;
- an outer core, the outer core being positioned radially outward of the inner core and substantially surrounding the inner core, the outer core being comprised of a rubber;
- a mantle layer, the mantle layer being positioned radially outward of the outer core and substantially surrounding the outer core, the mantle layer being comprised of an ionomer;
- and
- a cover layer, the cover layer being positioned radially outward of the mantle layer and substantially surrounding the mantle layer;
- wherein the golf ball has a peak frequency sound of less than about 3.75 kHz, a COR value of at least 0.772.
3 more elements
Dependencies are inferred from the claim text.