Golf ball having an interlocking multi-layered core
AssigneeAcushnet Company
InventorsNelson J. Araujo, Edward Costa
Life of this patent
Estimating the term…
Abstract
A golf ball has a core and a cover that surrounds the core. The core is a multi-layer component of the golf ball, having at least two core layers including an inner core and at least one outer core. The inner core is formed from a first composition and has a generally spherical shape and a spherical surface. The inner core defines one or more through holes that each extend from a first opening at the spherical surface to a second opening at the spherical surface. The outer core is formed from a second composition, different from the first composition. The outer core has a first portion that surrounds the inner core and a second portion that extends from the first opening to the second opening and thereby completely fills each of the through holes.
Claims20
A golf ball comprising:
- a cover;
- and
- a core surrounded by the cover, the core comprising:
- an inner core formed from a first composition and having a generally spherical shape and a spherical surface, the inner core defining one or more through holes that each extend from a first opening at the spherical surface to a second opening at the spherical surface;
- and
- an outer core formed from a second composition, different from the first composition, the outer core comprising a first portion that surrounds the inner core and a second portion that extends from the first opening to the second opening and thereby completely fills each through hole of the one or more through holes.
A method of making a golf ball, comprising:
- molding an inner core in the shape of a sphere having a spherical surface;
- forming a through hole into the inner core, the through hole being a hollow channel having a first opening in the spherical surface connected to a second opening in the spherical surface;
- molding and curing an outer core onto the inner core such that the material making up the outer core flows into the through hole and completely fills the through hole with the material;
- and
- forming a cover around the outer core and the inner core, the cover comprising a plurality of dimples.
A golf ball comprising:
- a cover;
- and
- a core surrounded by the cover, the core comprising:
- an inner core formed from a first composition and having a generally spherical shape and a spherical surface, the inner core defining at least one through hole that extends from a first opening at the spherical surface to a second opening at the spherical surface;
- a first outer core formed from a second composition, different from the first composition;
- and
- a second outer core formed from a third composition, different from the second composition,
- wherein the first outer core surrounds the inner core and the second outer core surrounds the first outer core and the inner core;
- and wherein one of the first outer core or the second outer core includes a fill portion that extends from the first opening to the second opening and thereby completely fills the at least one through hole.
Dependencies are inferred from the claim text.