Recoverable sea anchor
US4766837A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 20, 1987 |
| Grant date | Aug 30, 1988 |
| Priority date | — |
| Expiry date | Apr 20, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B21/48
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A recoverable sea anchor for a vessel wherein the anchor is made from a flexible sheet material with a periphery and a center. A plurality of lines interconnect a plurality of spaced points around such periphery to a ring which in turn is connected via a releasable connecting means to a swivel. A mooring line is then used to connect such swivel to the vessel. The releasable connecting means is operative to release the connection between the swivel and the ring in response to a predetermined load to put into play a disabling line, in a slack inoperative condition which then interconnects the swivel and the center of the chute or another portion of the chute to disable or collapse the concave chute. A modification of the sea anchor is to make it frusto conical or tubular in shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.