Patent · US Expired

Device for locking platform of offshore structure

US4589799A · kind A · utility

21Cited by
4References
2Claims
0Family size

Assignees

Inventors

Key dates

Filing dateOct 11, 1983
Grant dateMay 20, 1986
Priority date
Expiry dateOct 11, 2003

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE02B2017/0082
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A device for locking a platform of an offshore structure wherein each of legs vertically rest on the sea floor and is provided with a rack. The platform in adapted to move upward or downward along the legs and is provided with chocks which engage with the racks, respectively, of the legs. The teeth of the chock has a whole depth deeper than that of the teeth of the rack so that when the chock engages with the rack, the deddendums of the chock is caused to deflect themselves respectively about the deddendums, which are made into engagement with the rack, so as to follow the displacement of the platform in the direction of gravity.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.