Golf club iron head having lift-off sole
US6106410A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1999 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Mar 18, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B53/0458
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A golf club iron has a metallic club head including a solid metallic club head body with a bottom surface including a sole that contacts a flat surface when the bottom surface of the club head is placed onto a flat surface, a top surface, a hosel extending from the club head body, and a front face on the club head body. The heel and toe of the club are angled upwardly from a trailing edge central sole region, so that a central sole region has a length of from about 1/4 inch to about 3/4 inch to reduce the potential contact area of the club head with the ground. There is a recess in the rear face of the club head body, with a rim around the recess having a thickness of from about 5/16 inch to about 1 inch measured in the central portion of the rear face of the club head body, to lower the center of gravity of the club head. The angle between a tangent plane to the bottom surface and a ground plane lying perpendicular to the axis of the hosel is about equal in degrees to the club head designation number, producing an increased bounce angle of the club head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.