Metal seal and attachment method for the same and tight-seal construction
US7004479B2 · kind B2 · utility
6Cited by
8References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2003 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Oct 22, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L17/025
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A metal seal of ring as a whole disposed between a first contact flat face portion and a second contact flat face portion parallel to each other. This metal seal has a middle base portion, a first contact convex portion, and a second contact convex portion. The first contact convex portion protrudes from an inner side and the second contact convex portion protrudes from an outer side. The metal seal generates torsional elastic deformation around the middle base portion as a center in an attached and compressed state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.