Sealing devices
US4041718A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 24, 1976 |
| Grant date | Aug 16, 1977 |
| Priority date | — |
| Expiry date | Mar 24, 1996 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B17/0008
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a sealing device for sealing the gap between a tubular leg or a tubular piling can and a pile passing therethrough for supporting a permanent platform at sea, which sealing device comprises a first part in the form of an annular sealing element and a second part, through which the pile can pass, in the form of an annular protective guard for the sealing element, both parts being coaxial with the leg or can, the guard, before a seal is made with the pile, lying between the sealing element and the pile, there being means provided which, in use, enable such relative movement in an axial direction between the guard and the sealing element, that the guard no longer protects the sealing element which is thus free to make sealing contact between the pile and the leg or can, the provision of a plurality of support members pivotally connected adjacent the sealing element, the support members lying between the sealing element and the guard before a seal is made with the pile such that, when relative axial movement takes place between the guard and the sealing element so that the guard no longer protects the sealing element, the support members are released and are free to pivot so as to c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.