US4959000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable pin mold
Assignee: Acushnet Co
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Filing: 1989-10-31
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Granted: 1990-09-25
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Expires: 2009-10-31
Abstract
Abstract An improved retractable pin mold for golf balls has a gate valve positioned at the pole of the core.
Inventors
- 👤 John P. Giza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:47
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/26; B29C45/27; B29C45/28; B29C45/2806; B29C45/14; B29C45/14065; B29C45/14073; B29C45/14819; B29L; B29L2031/00; B29L2031/54; B29L2031/545
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
137 words
In a golf ball retractable pin mold having a top mold plate having a plurality of top half molds therein and a bottom mold plate having a plurality of bottom half molds therein, said plurality of top half molds in said top plate in registration with said plurality of bottom half molds in said bottom mold plate and each of said top and bottom half molds forming a substantially spherically shaped mold cavity, each of said top half molds and said bottom half molds joining at the equator of the spherically shaped mold cavity, the improvement comprising: (a) a gate positioned at the pole of each top half mold and at the pole of each bottom half mold; and (b) a valve at each gate to control the flow of fluid into each spherical shaped mold cavity.
Claim 2
Dependent Claim
137 words
In a golf ball retractable pin mold having a top mold plate having a plurality of top half molds therein and a bottom mold plate having a plurality of bottom half molds therein, said plurality of top half molds in said top plate in registration with said plurality of bottom half molds in said bottom mold plate and each of said top and bottom half molds forming a substantially spherically shaped mold cavity, each of said top half molds and said bottom half molds joining at the equator of the spherically shaped mold cavity, the improvement comprising: (a) a gate positioned at the pole of each top half mold and at the pole of each bottom half mold; and (b) a valve at each gate to control the flow of fluid into each spherical shaped mold cavity.
Claim 3
Dependent Claim
31 words
The golf ball retractable pin mold of claim 1 wherein retractable pins are mounted in said mold plates such that the pins are normal to the surface of the golf ball.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-09-24 | 1994-03-26 | 1994-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-24 | 1998-03-26 | 1998-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-24 | 2002-03-26 | 2002-09-25 | $7700.00 | Window Closed / Lapsed |