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US 6,056,842 AGranted
Method of making a golf ball with a multi-layer core
AssigneeAcushnet Company
InventorsJeffrey L. Dalton, Herbert C. Boehm, Christopher Cavallaro
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Abstract
A method of forming a golf ball by forming a core center, forming a laminate of core material, forming the laminate around the core center to form a core and forming a cover around the core. The laminate preferably consists of at least three layers of different polybutadiene rubbers.
Claims10
A method of manufacturing a golf ball comprising the steps of:
- a) forming a solid center of a first core material;
- b) forming first sheets of a second core material having a different hardness than the first core material;
- c) forming second sheets of a third core material having a different hardness than the first core material;
- d) forming at least two laminates from the first and second sheets of second and third core materials;
- e) vacuum forming one of the at least two laminates to a top mold cavity and another of the at least two laminates to a bottom mold cavity;
- f) inserting the center between the vacuumed-formed laminates while the vacuumed-formed laminates are in the mold cavities;
- g) subsequent to the inserting step, compression molding the vacuumed-formed laminates which are in the mold cavities around the center to form a core having a substantially uniformly thick first layer of second core material around the center and a substantially uniformly thick second layer of third core material around the center and first layer;
- and
- h) forming a cover over the core.
6 more elements
Dependencies are inferred from the claim text.