Golf ball with liquid center
US6174245A · kind A · utility
8Cited by
26References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 1998 |
| Grant date | Jan 16, 2001 |
| Priority date | — |
| Expiry date | May 22, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/545
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention is directed toward the novel use of thermoplastic materials to form center core shells for use in liquid filled golf balls. Golf balls of the present invention employ liquid filled centers formed from thermoplastic shells, preferably made of a polyether-ester, the shells having a tensile modulus of about 3 ksi to about 10 ksi, preferably a hardness of about 20 to about 80 shore D, preferably a flexural modulus of about 5.5 ksi to about 8.5 ksi, preferably a wound layer, and preferably a specific gravity of greater than 1.5. The shell has a thickness of about 0.005 inches to about 0.5 inches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.