Sail furling apparatus
US4061101A · kind A · utility
Inventor
Key dates
| Filing date | Feb 23, 1977 |
| Grant date | Dec 6, 1977 |
| Priority date | — |
| Expiry date | Feb 23, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H2009/1064
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A sail furling apparatus having a fixed core for connection to a wind powered device is disclosed herein. A rotatable sail sleeve having a bore formed therein is rotatably mounted on the fixed core. A double sheet airfoil sail is connected to the rotatable sail sleeve. A boom sleeve is mounted beneath the rotatable sail sleeve and engages the core. A boom is connected to the boom sleeve and is positioned perpendicular to the core, the sail sleeve and the boom sleeve. A freely rotatable eccentric sheath substantially surrounds the sail sleeve. The freely rotatable eccentric sheath has a slot and the airfoil sail passes through the slot. A furling apparatus is used to rotate the sail sleeve to draw the airfoil sail into the eccentric sheath or release it from the eccentric sheath.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.