Iron-type golf club
US7083531B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2004 |
| Grant date | Aug 1, 2006 |
| Priority date | — |
| Expiry date | Sep 1, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2053/0491
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An iron-type golf club head (20) includes a body (22) having a front wall (28) with a ball-striking surface (40). The body (22) further includes a rear surface (54) that has external rear cavity (56) formed therein. The rear surface (54) includes an upper portion (58) and a lower portion (60). The upper portion (60) is separated from the lower portion (59) by the external rear cavity (56) and at least one groove (64, 66). The lower portion (60) of the rear surface (54) has a notch (62) formed therein, which communicates with the external rear cavity (56). The golf club head (20) preferably has high moments of inertia Izz and Ixx.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.