Performance enhanced golf club shafts
US8491406B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 2009 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Jul 27, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2209/023
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A plurality of two or more golf club shafts designed to optimize the performance of a specific shaft with respect to a specific golf swing is disclosed herein. More specifically, the present invention discloses a plurality of two or more golf club shafts wherein a dramatic difference in torque can be achieved by two golf club shafts within the same weight classification regardless of the flex of the shaft. A plurality of golf club shafts in accordance with the present invention may generally a difference in weight-to-torque ratio of greater than about 1.5 and a difference in butt-frequency-to-torque ratio of greater than about 8.0 between any two golf club shafts within the plurality of golf club shafts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.