Self-releasing mast base collar
US5331912A · kind A · utility
0Cited by
3References
18Claims
0Family size
Inventor
Key dates
| Filing date | Sep 21, 1992 |
| Grant date | Jul 26, 1994 |
| Priority date | — |
| Expiry date | Sep 21, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B32/68
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A windsurfer mast base collar which has a a collar supporting a pair of spring loaded detents that are self-releasing upon application of modest upward manual forces and self-engaging upon application of downward mast securing forces upon an upper load bearing surface of the collar. The relative positions of the force bearing elements of the collar and the mast base to which it is attached results in the detents being subjected primarily to compressive loads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.