Rig for a sail carrying boat
US4811677A · kind A · utility
2Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 1987 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | Jan 20, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H9/1042
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rig for a sail-carrying boat comprises a mast having an axially-extending luff track, a sail having a bead-shaped luff formed by a longitudinally folded flat ribbon sewn to the front edge of the sail cloth, the bead-shaped luff being inserted in the luff track, and a boom secured to the mast by a pivotable joint, the boom including a tubular body and a rod rotatably mounted in the tubular body and to which the bottom edge of the sail is secured, such that rotation of the rod during reefing causes the sail to be wrapped therearound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.