Sailboard outhaul and downhaul tensioning mechanism
US5134952A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1989 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Nov 21, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H8/25
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A fluid pressure member (26 or 26' or 100) is connected between foot portion (3) and upper portion (4) of the mast (3, 20, 4) of a sailboard (1) which, in turn, are connected to the head (6) and tack (10) of the sailboard sail (7). Controls for a source of fluid under pressure (32 or 50) for the pressure member (26 or 26' or 100) are mounted on the boom (5) for convenient access by the user. While under sail, the user can cause a portion (29 or 101) of the fluid pressure member to extend and retract to adjust the overall effective height of the mast (3, 20, 4) and, consequently, the tension of the downhaul (11), i.e., the vertical tension applied to the leading upright edge of the sail (7). A similar fluid pressure member (76) can be carried in the boom (5) to adjust the tension of the outhaul (9).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.