Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1996-10-07
1999-11-02
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264265, 264322, 425144, B29C 3910, B29C 3504
Patent
active
059764430
ABSTRACT:
The present invention is directed to molded golf ball core constructions and methods for improving the molded golf ball core construction. The molded golf ball comprises a molded spherical core having a soft skin integral therewith, and a cover molded over the core. The soft skin is formed by controlling exothermic molding temperatures. A slug is placed in a mold cavity which is then closed. A steam set point is set, and steam is applied for a 25-30 minute period such that a maximum mold temperature exceeds the steam set point. In the alternative, the core surface may be softened by first immersing a slug in water prior to subjecting the slug to conventional molding conditions.
REFERENCES:
patent: 684050 (1901-10-01), Falconnet et al.
patent: 2618812 (1952-11-01), Hulswit, Jr. et al.
patent: 2642627 (1953-06-01), Mann et al.
patent: 4650193 (1987-03-01), Molitor et al.
Melvin Terence
Nesbitt R. Dennis
Sullivan Michael J.
Lee Edmund H.
Lisco Inc.
Silbaugh Jan H.
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