Forged iron-type golf clubs
US7153222B2 · kind B2 · utility
137Cited by
17References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2003 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Jan 21, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B53/0408
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Forged cavity back iron-type clubs and oversize clubs are disclosed. These forged clubs have thin, durable hitting face and relatively large cavity volumes. These clubs have high rotational moments of inertia to minimize distance and accuracy penalties associated with off-center hits. Long irons with hitting face of about 0.100 inch thick are achievable by the present invention. Also disclosed are forged irons made from stainless steels and annealed to achieve the desired hardness and ductility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.