Golf club face surface shape
US6139445A · kind A · utility
164Cited by
14References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1998 |
| Grant date | Oct 31, 2000 |
| Priority date | — |
| Expiry date | Aug 14, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B53/0487
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Golf club heads are disclosed which have face surface shapes which are designed so as to reduce the scatter of the points where the ball stops after a hit, as compared to face surface shapes of prior art. This is accomplished by use of optimum face surface shapes which respect the USGA requirement for no degree of concavity. The face surface shapes disclosed are different in upward directions from the hit center to the face surface shapes in downward directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.