Leak-resistant threaded pipe connection
US11505999B2 · kind B2 · utility
1Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2020 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Oct 22, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L15/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A leak-resistant pipe connection has an annular seal bulge on a pin end of the connection and a tapered seal area adjacent a secondary box shoulder of a box end of the connection. The annular seal bulge is coined on contact with the tapered seal area on initial make-up of the connection which provides a metal-to-metal seal that is very resistant to high-pressure fluid leakage even after the connection is subjected to extreme shear and tensile stresses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.