Connection of two pipes and sealing ring for the connection
US7393020B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2005 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | Nov 15, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L23/20
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
In a pipe connection, a first pipe has a first flange of sheet metal provided with a first wall connected circumferentially to the first pipe. A second pipe has an end section shaped as a second flange. A clamp engages across the first and second flanges and has conical sidewalls forcing the first and second flanges axially against one another when tightening the clamp. The first flange delimits together with the first pipe an annular chamber that is coaxial to the longitudinal pipe axis. The first flange has a second wall that is glidingly supported on a free end of the first pipe. A sheet metal sealing ring is positioned between the first and second flanges. It has an edge section that is bent back onto a remaining sealing ring section that has a corrugation projecting past the bent edge section in an untightened state of the clamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.