发明名称 |
Non-circular vent pin for golf ball injection mold |
摘要 |
An improved vent pin for a golf ball injection mold is characterized by a non-circular configuration so that a non-circular dimple can be formed at one or both poles of the golf ball. The vent pin is coaxially arranged within a passage in the injection mold which is aligned with a radius of the ball which passes through one of the poles thereof. The pin is operable between a normal position where the end of the pin closes the passage lower end and a retracted position where the pin end is withdrawn into the passage so that air from a cavity of the mold where the cover layer of the ball is formed can be vented during delivery of thermoplastic material to the cavity to form the golf ball cover.
|
申请公布号 |
US6422850(B1) |
申请公布日期 |
2002.07.23 |
申请号 |
US20000692502 |
申请日期 |
2000.10.19 |
申请人 |
SPALDING SPORTS WORLDWIDE, INC. |
发明人 |
SHANNON KEVIN J.;KENNEDY, III THOMAS J.;TAVARES GARY |
分类号 |
A63B37/00;A63B45/00;B29C45/14;B29C45/34;(IPC1-7):B29C70/70;B29C45/40 |
主分类号 |
A63B37/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|