Preparation of golf balls

Details Preparation of golf balls Preparation of golf balls

1996-05-17

1998-12-15

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

2643281, 264335, 425437, 425444, 425556, B29C 4503

Patent

active

058492372

ABSTRACT:
A golf ball is prepared by mating upper and lower mold halves (21a and 21b) to define a mold cavity (22), feeding a golf ball-molding material into the cavity to mold a golf ball, separating the upper and lower mold halves, and ejecting the molded golf ball from the lower mold half. A gas passage (2) is formed in the lower mold half in communication with the cavity. Pressurized gas is injected into the cavity (22) through the gas passage (2) to pneumatically urge the molded golf ball (23') away from the lower mold half (21b), thereby ejecting the molded golf ball from the lower mold half. The invention ensures effective ejection of a molded golf ball from the mold, producing golf balls free from flaws and deformation.

REFERENCES:
patent: 4139177 (1979-02-01), Hanning
patent: 4389365 (1983-06-01), Kudriavetz
patent: 5085814 (1992-02-01), Kamiyama et al.
patent: 5254304 (1993-10-01), Adachi et al.
patent: 5284429 (1994-02-01), Schneider et al.
patent: 5342191 (1994-08-01), Shah et al.
patent: 5389227 (1995-02-01), Matyi et al.
patent: 5490966 (1996-02-01), Peterson et al.

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