Method of manufacturing a golf ball

Details Method of manufacturing a golf ball Method of manufacturing a golf ball

2007-06-08

2010-02-02

Del Sole, Joseph S. (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

Reexamination Certificate

active

07655172

ABSTRACT:
The present invention provides a method of manufacturing golf balls having a rubber core of at least one layer and a cover of at least one layer which encloses the rubber core, which method includes the step of molding at least one layer of the rubber core by directly injecting a rubber composition into a spherical cavity and vulcanizing the injected composition. This process enables the sphericity of the rubber core to be enhanced, the rubber materials to be used without waste, and balls of an excellent scuff resistance to be obtained.

REFERENCES:
patent: 696353 (1902-03-01), Richards
patent: 3671621 (1972-06-01), Fukuoka et al.
patent: 4698001 (1987-10-01), Vismara
patent: 6033724 (2000-03-01), Molitor
patent: 2001/0008320 (2001-07-01), Scolamiero
patent: 2001/0011046 (2001-08-01), Ichikawa et al.
patent: 2001/0026027 (2001-10-01), Nesbitt
patent: 51-118535 (1976-10-01), None
patent: 8-322966 (1996-12-01), None

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