Method for forming golf ball with polyurethane
First Claim
1. A method of making a golf ball having a core and outer cover and using first and second mold halves, comprising the steps of:
- a) placing a first portion of polyurethane in a first cavity of the first mold half;
b) allowing said first portion of polyurethane to partially cure to a selected state of gel in said first cavity;
c) positioning said core within said first cavity while vertically and laterally centering said core within said first cavity to mold said first portion of said polyurethane at said selected state of gel around said core;
d) placing a second portion of polyurethane in a second cavity of the second mold half at a time subsequent to the placing of said first portion of polyurethane in said first cavity of said first mold half;
e) allowing said second portion of polyurethane to partially cure to the same selected state of gel as the first portion was when the core was moved into said first cavity of said first mold half;
f) mating said first mold half, having the core and first portion of polyurethane against said second mold half when said second portion of said polyurethane in said second cavity of the second mold half is at the same selected state of gel as the first portion was when the core was moved into said first cavity of said first mold half; and
g) curing the polyurethane in the mated mold halves.
2 Assignments
0 Petitions
Accused Products
Abstract
A method of making a golf ball having a core and polyurethane including the following steps. A first portion of polyurethane is placed in a first cavity, and the first portion of polyurethane is allowed to partially cure to a selected state of gel. The core is positioned within the cavity while the core is vertically and laterally centered within the cavity. A second portion of polyurethane is placed in a second cavity at a time subsequent to placing the first portion of polyurethane in the first cavity. The second portion of polyurethane is allowed to partially cure, and the first and second cavities are mated together to cure the polyurethane around the core.
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Citations
21 Claims
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1. A method of making a golf ball having a core and outer cover and using first and second mold halves, comprising the steps of:
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a) placing a first portion of polyurethane in a first cavity of the first mold half; b) allowing said first portion of polyurethane to partially cure to a selected state of gel in said first cavity; c) positioning said core within said first cavity while vertically and laterally centering said core within said first cavity to mold said first portion of said polyurethane at said selected state of gel around said core; d) placing a second portion of polyurethane in a second cavity of the second mold half at a time subsequent to the placing of said first portion of polyurethane in said first cavity of said first mold half; e) allowing said second portion of polyurethane to partially cure to the same selected state of gel as the first portion was when the core was moved into said first cavity of said first mold half; f) mating said first mold half, having the core and first portion of polyurethane against said second mold half when said second portion of said polyurethane in said second cavity of the second mold half is at the same selected state of gel as the first portion was when the core was moved into said first cavity of said first mold half; and g) curing the polyurethane in the mated mold halves. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17)
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12. A method of making a golf ball having a core and using first and second mold members, comprising the steps of:
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a) placing a first portion of polyurethane in a first cavity of the first mold member; b) curing the first portion in the first cavity for a selected amount of time to a selected state of gel; c) positioning said core within said first cavity while vertically and laterally cent said core within said first cavity to mold said first portion of said polyurethane at said selected state of gel around said core; d) placing a second portion of polyurethane in a second cavity of the second mold member at a time subsequent to the placing of said first portion of polyurethane in said first cavity of said first mold member; e) curing the second portion in said second cavity for said selected amount of time to said selected state of gel; f) mating said first mold member, having the core and first portion of polyurethane against said second mold member when said second portion of said polyurethane in said second cavity of the second mold member is at the same selected state of gel as the first portion was when the core was moved into said first cavity of said first mold member; and g) curing the polyurethane in the mated mold members. - View Dependent Claims (13, 18, 19, 20, 21)
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Specification