Method for producing a threaded tubular connection sealed by radial expansion
US8151461B2 · kind B2 · utility
2Cited by
8References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2004 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | Sep 19, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49963
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
To produce a sealing contact between male and female threaded elements, a contact zone is provided, located between male and female threading portions separated from each other in an axial direction. The male and female elements have respective cylindrical portions that extend over the entire length of the contact zone. After expansion, a sealing contact is established between surfaces in two annular areas by a radial interference fit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.