Inspection method of gauge for a self-locking threading of a tubular connection used in the oil industry
US8544179B2 · kind B2 · utility
1Cited by
14References
36Claims
0Family size
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Key dates
| Filing date | Oct 26, 2009 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | Mar 18, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49881
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and a gauge for inspecting a self-locking threading provided close to one end of a tubular component used for exploration or operation of hydrocarbon wells, the threading including a lead with a constant width and thread root widths that increase in the direction of a distal surface of the tubular component. The gauge can be displaced in the self-locking threading to a locking position, the locking position then being marked and compared with a reference locking position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.