Seal of a vacuum valve and production method therefor
US10830360B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2018 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Jan 19, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K51/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vacuum valve including a valve seat having a valve opening defining an opening axis and a first seal surface circumferential around the valve opening and having a closure element having a second seal surface corresponding to the first seal surface. The first seal surface and/or the second seal surface has an at least two-component material composite having a metallic carrier component and a polymer-based seal material. The metallic carrier component defines an inner and outer carrier region and has a plurality of defined depressions extending in the inner carrier region by the seal surface. The seal material is applied to the carrier component such that a defined profile of the seal material is provided on the outer carrier region and a part of the seal material extends at least into a part of the depressions of the carrier component and fills them at least halfway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.