Seal holder and method for sealing a bore
US9464497B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 7, 2011 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Nov 19, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1208
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A seal holder for retaining a sealing arrangement (119,121), said sealing arrangement (119,121) being adapted to seal against a facing seal surface (209) in a bore (203), said seal holder having an intermediate section (117a) encircled by a peripheral section (117b) arranged for carrying said seal arrangement (119,121), wherein said intermediate section (117a) is convex shaped towards the pressure side and is adapted to exert radial pressure on said peripheral section (117b) in the event of exposure to pressure on its convex side. The invention also relates to a method for sealing a bore by applying an apparatus equipped at its lower end with a seal holder (117) retaining a sealing arrangement (119,121).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.