Preparation of spherical body

Details Preparation of spherical body Preparation of spherical body

1995-03-07

1996-09-10

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

Direct application of electrical or wave energy to work

Using sonic, supersonic, or ultrasonic energy

264161, 4251742, 425806, B29C 3702, A63B 3712

Patent

active

055543375

ABSTRACT:
A spherical body having at least a surface portion made of a thermoplastic resin, typically golf ball is prepared by molding the resin in a split mold consisting of a pair of mold halves. The spherical body as molded has a ring-shaped fin on its surface along the parting line between the mold halves. The fin is removed from the spherical body surface by means of a ultrasonic cutter. The method can remove only the fin at the parting line while minimizing any damage to the proximity of the fin and resurfacing the deburred area as smooth as possible. The method is suited for the manufacture of golf balls and golf ball cores.

REFERENCES:
patent: 3595453 (1971-07-01), Sherry
patent: 4518551 (1985-05-01), Lin
patent: 4670210 (1987-06-01), Boggs
patent: 4880241 (1989-11-01), Melvin et al.
patent: 4892018 (1990-01-01), Boggs
patent: 5069832 (1991-12-01), Okumura et al.
patent: 5318420 (1994-06-01), Blaimschein
patent: 5407341 (1995-04-01), Endo et al.

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