Annular barrier with bite connection
US11220880B2 · kind B2 · utility
0Cited by
6References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 19, 2020 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Jun 19, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1277
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An annular barrier includes a metal part and an expandable metal sleeve. The first end of the sleeve has a mechanical connection, and is connected to the metal part via a bite connection with a cutting ring including an outer ring face having an inclined face and an inner ring face having a first cutting edge configured to cut into the outer part face, and a connection ring with a mechanical connection engaging the mechanical connection of the sleeve when the inclined face slides along a tapering face of the sleeve for pressing the first cutting edge into the outer part face, fastening the sleeve to the tubular metal part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.