Drag embedment marine anchor
US5474015A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 19, 1994 |
| Grant date | Dec 12, 1995 |
| Priority date | — |
| Expiry date | Aug 19, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B2021/262
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A marine anchor comprising a fluke and a shank attached to the fluke is intended for drag embedment in a mooring bed by pulling the anchor substantially horizontally via the shank. Further, it is a particular feature of the anchor that two modes of operation are possible through use of the line extending between the anchor cable attachment point on the shank and the fluke centroid being variable to provide a first line present for drag embedment of the anchor, and a second line utilized when the anchor is embedded, wherein the pulling force on the anchor via the shank can now be essentially upwards, thereby providing an increased holding force due to the increased fluke area presented in the direction of the upwards force. The change in direction from the first line to the second line can be achieved by having the shank pivotal and by providing pivot control members permitting selective pivoting of the shank. Alternatively, two separate cable attachment point can be present in the shank with, as a first example, two separate cables attached to the cable attachment points, whereby the two modes of anchor operation are achieved by transferring operation from a first cable to the seco…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.