External protection for expandable threaded tubular connections
US7980597B2 · kind B2 · utility
0Cited by
4References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2006 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Feb 4, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L15/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A female element of a threaded tubular connection that is fitted to undergo diametrical expansion in a plastic deformation region. The female element is disposed at one end of a tubular component and includes on its external periphery a mechanism that absorbs scratch energy of a scratching body that may come into external contact with the female element and a mechanism that retains the scratch energy absorption mechanism. The retaining mechanism is configured to prevent release of debris from the scratch energy absorption mechanism during expansion of the threaded tubular connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.