Seal arrangement for a vacuum valve
US6698719B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 26, 2002 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Aug 3, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K1/385
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A seal arrangement for a vacuum valve with a valve body in which is arranged a valve opening having a longitudinal axis and which has an inner jacket surface surrounding the valve opening and forming a valve seat, and with a valve plate which closes the valve opening in the closed state of the vacuum valve and which has an outer jacket surface surrounding the valve plate, said inner jacket surface and said outer jacket surface being located opposite one another in the closed state of the valve. The seal arrangement comprises a sealing ring which is arranged in an annular groove arranged at the outer or inner jacket surface and which has groove flanks and a groove base, and a sealing surface which is provided at the inner or outer jacket surface and which has a conical shape relative to the longitudinal axis the valve opening and which is contacted by the sealing ring in the closed state of the vacuum valve. The distance of the groove base from the longitudinal axis of the valve opening changes along the width of the groove at least in the position occupied by the valve plate in the closed state of the vacuum valve and, further, a supporting ring is arranged in the groove laterally …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.