Structure of a golf club head or other ball striking device
US7407443B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2004 |
| Grant date | Aug 5, 2008 |
| Priority date | — |
| Expiry date | Mar 7, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Ball striking devices, such as golf club heads (including putter heads), have a high moment of inertia about their center, to help prevent twisting and mis-hits, particularly when the ball striking device hits the ball at a somewhat off-center position. The ball striking head of the ball striking device may be structured and/or weighted (optionally with separately attachable weight elements) to have a moment of inertia about a center of the ball striking surface of at least 10,000 g-cm2, and in some examples, the moment of inertia may be at least 11,000 g-cm2, or even at least 12,000 g-cm2. In some examples, the moment of inertia may be at least 20,000 g-cm2, or even at least 25,000 g-cm2 or at least 28,000 g-cm2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.