Golf ball
US6004225A · kind A · utility
Inventors
Key dates
| Filing date | Jan 16, 1998 |
| Grant date | Dec 21, 1999 |
| Priority date | — |
| Expiry date | Jan 16, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2037/085
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A golf ball having improved driving characteristics includes a hard, hollow sphere surrounded by an outer cover. A second layer may be disposed between the sphere and the outer cover. The hollow sphere is made from a hard material such as a metal, metal alloy, or intermetallic material and may be solid, perforated or porous. The second layer surrounding the sphere is generally made of a natural rubber or synthetic polymer or a combination of each which is surrounded by an outer cover made of an ionomer, urethane or balata. The hard sphere preferably contains a gas. A golf ball of this construction has improved performance characteristics such as low spin rate and further distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.