Method and apparatus for handling piling and anchoring an offshore tower
US3991581A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 2, 1975 |
| Grant date | Nov 16, 1976 |
| Priority date | — |
| Expiry date | Jun 2, 1995 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B17/027
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and apparatus for handling piling and anchoring an offshore tower are disclosed wherein sudden loading of a derrick handling the piling is avoided as the piling is moved into position preparatory to driving. The apparatus entails a base intended to rest upon an upper end of a piling guide. A releasable gripping means is connected to the base and serves to grip and restrain an add-on piling while the add-on piling is connected to a piling connected and thus suspended within the piling guide and also while the suspended piling is released therefrom. Releasing means are employed to release the gripping means to permit concurrent downward movement of the add-on and suspended piling. In further aspects, the apparatus and method of the invention effect the connection of an add-on piling to a piling suspended from an offshore tower by first at least partially enclosing the add-on piling within a chuck releasably gripping the add-on piling. The add-on and chuck are next hung from the boom of a floating derrick and the add-on piling is connected to the suspended piling. The piling is thereafter disconnected from the piling guide while the suspension thereof is concurrently maintain…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.