Expandable metal-to-metal seal connection
US9926749B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 26, 2015 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | May 14, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49881
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A threaded connection comprising a pin member formed on an end of a first tubular member. The pin member includes an inner seal pin portion, a threaded pin portion, and an outer seal pin portion. The inner seal pin portion has an inner diameter that is greater than an inner diameter of the outer seal pin portion. A box member is formed on an end of a second tubular member. The box member includes an inner seal box portion, a threaded box portion, and an outer seal box portion. The inner seal box portion has an outer diameter that is greater than an outer diameter of the outer seal box portion. The inner seal pin portion sealingly engages the inner seal box portion and the outer seal pin portion sealingly engages the outer seal box portion when the threaded pin portion is engaged with the threaded box portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.