High-pressure threaded union with metal-to-metal seal, and metal ring gasket for same
US7484776B2 · kind B2 · utility
13Cited by
70References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2005 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | Sep 24, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L17/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A metal ring gasket provides a high-pressure temperature tolerant metal-to-metal seal between subcomponents of a threaded union. The metal ring gasket is received in an annular cavity formed between mating surfaces of the subcomponents of the threaded union. The metal ring gasket is capable of maintaining a fluid seal even at very high temperatures resulting from direct exposure to fire. At high fluid pressures the metal ring gasket is energized because hoop stress induced by the fluid pressure forces the metal ring gasket into tighter contact with the subcomponents of the threaded union.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.