×

Method of making a golf ball with a multi-layer core

  • US 6,056,842 A
  • Filed: 10/03/1997
  • Issued: 05/02/2000
  • Est. Priority Date: 10/03/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. 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.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×