Oil country tubular goods casing coupling
US11680451B2 · kind B2 · utility
0Cited by
36References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 19, 2021 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Aug 26, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L15/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A threaded coupling comprising a first end, a second end, a first portion of the threaded coupling defining a first thread profile, a second portion of the threaded coupling defining a second thread profile different from the first thread profile, where at least two threads of the second thread profile proximate to the second end are reduced in height according to an extra machining angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.