Golf club with bulge radius and increased moment of inertia about an inclined axis
US4471961A · kind A · utility
222Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1982 |
| Grant date | Sep 18, 1984 |
| Priority date | — |
| Expiry date | Sep 15, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B53/0433
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A golf clubhead has weight distributed on opposite sides of a non-vertical axis which extends through the center of gravity of the clubhead in a plane which intersects the axis of the shaft above the clubhead to provide more accurate off-center hits. Wooden clubs are provided with bulge and roll which curve, respectively, about said axis and an axis perpendicular thereto. The radius of the roll is increased to make the loft of the club substantially uniform from top to bottom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.