Title:
【発明の名称】多層ゴルフボール
Document Type and Number:
Japanese Patent JP2001511412
Kind Code:
A
Abstract:
The invention provides a golf ball (10) and a method for making the ball. Two cups (30) are molded from an elastomer separately from an inner sphere (20). In one embodiment of the method, the cups (30) are molded on both sides of a single mold part (36) with hemispherical protrusions (35, 37) that form cavities (44) in the cups (30). An inner sphere (20) is placed within the cavities (44) and the cups (30) are joined, preferably by applying adhesive (42) therebetween. To retain the characteristics of the cup material where the cups (48, 54) meet, an embodiment of the cups (48, 54) can be formed with nonplanar mating surfaces (50, 52, 56, 58) that mesh with each other. The nonplanar mating surfaces (50, 52, 56, 58) preferably have a pattern that is symmetrical about the inner sphere (20) such as concentric ridges, for example a tongue and a groove.
Inventors:
Behm Herbert Sea
Morgan William Yi
Reed Walter El
Pascal Samuel A. Junior
Cavalaro christopher
Harris Kevin M
Dalton Jeffrey El
Morgan William Yi
Reed Walter El
Pascal Samuel A. Junior
Cavalaro christopher
Harris Kevin M
Dalton Jeffrey El
Application Number:
JP2000504929A
Publication Date:
August 14, 2001
Filing Date:
July 28, 1998
Export Citation:
Assignee:
ACUSHNET COMPANY
International Classes:
A63B45/00; A63B37/00; A63B37/04; A63B37/08; A63B37/12; B29C43/02; B29C43/14; B29C65/02; (IPC1-7): A63B45/00; A63B37/04; A63B37/12
Attorney, Agent or Firm:
Minoru Nakamura (9 outside)