Threaded and coupled tubular goods connection
US11795981B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jun 24, 2021 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Jul 4, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B7/18
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A tubular goods connection for releasably coupling tubular members includes: a coupling having a first internal wedge dove-tail thread formed within a longitudinal bore of the coupling and a second internal dove-tail wedge thread; a first tubular member having a first mating external vanishing dove-tail wedge thread extending from a first proximal pin end face; and a second tubular member substantially identical to the first tubular member; wherein when the first and second tubular members are made-up into the coupling using a predetermined recommended optimum torque, a distance D between the first pin end face and the second pin end face is in the range of 0 to 10 millimeters and when the distance D is equal to 0 there is contact between the first pin end face and a second pin end face of the second tubular good but there is no axial interference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.