Adjustable golf club
US4735414A · kind A · utility
Inventors
Key dates
| Filing date | Mar 2, 1987 |
| Grant date | Apr 5, 1988 |
| Priority date | — |
| Expiry date | Mar 2, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B53/0458
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A pivot assembly includes a shank member to which a club shaft is attached. A connecting member having detent balls is attached to the shank member from which a dirt shield and a bearing disc depend. The disc has a pair of bearing faces and includes a pair of journal bearings extending therefrom. The head has a hollow core in which are a pair of facing ring bearings which engage the disc bearing faces and journal bearings. A pair of abutments upstand from the head assembly outside the cavity and are formed with first and second sets of depressions at different spacings from a reference plane. As the shaft is rotated from one extreme position to the other, the detent balls engage the depressions in one abutment or the other alternately to provide closely spaced detent positions of the club shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.