Golf club head
US7988565B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2009 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Oct 19, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2209/02
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A head 2 is hollow. The head 2 has a sole part 8. The sole part 8 has a groove forming part k1 having a recessed outer surface g1 and a protruding inner surface s1. The sole part 8 has a first groove forming part k1 and a second groove forming part k1. The first groove forming part k1 and the second groove forming part k1 have a front-back directional length. A distance between the first groove forming part k1 and the second groove forming part k1 in a toe-heel direction is wider toward a back of the head. Preferably, the first groove forming part k1 and the second groove forming part k1 exist on a back of a face surface 13. Preferably, the sole part 8 has a connecting groove part r1. The connecting groove part r1 is formed by connecting a front end of the first groove forming part k1 to a front end of the second groove forming part k1 with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.