System comprising a tethered sail and a fixed station having means for folding the sail at the fixed station
US11225311B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2019 |
| Grant date | Jan 18, 2022 |
| Priority date | — |
| Expiry date | Jun 7, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H9/071
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A traction system for a watercraft, including a sail and a fixed station that includes a mast and a winch which is connected to the sail by a traction cable, the system further including a bottom part that is supported by the traction cable, and fold lines, each of which has an end that is attached to a leading edge of the sail, and another end that is supported by the bottom part. The fixed station includes a base that accommodates the bottom element when the sail is retracted by the winch; and structure for grasping each fold line and pulling same towards the mast so as to retract the leading edge against the mast and fold the sail once the winch has retracted same close to the station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.