Hybrid dynamically installed anchor with a folding shank and control method for keep anchor verticality during free fall in water
US11827314B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2020 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Jul 6, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B2021/265
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a hybrid dynamically installed anchor with a folding shank and a control method to keep the verticality of the hybrid anchor during free fall in the seawater, which can be applied to the field of offshore engineering. The hybrid anchor comprises a folding-shank plate anchor, a ballast shaft, an extension rod, a plurality of rear fins, and a recovery hole from the front to the tail. The folding shank is not only useful in reducing the water and soil resistance during installation, but also beneficial in improving the directional stability of the hybrid anchor during free fall in the seawater. The re-used shaft can significantly increase the penetration depth of the folding-shank plate anchor and reduce the installation cost at the same time. The control method keeping the verticality of the hybrid anchor can improve the success rate during anchor installation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.