Lock for vacuum chamber
US6615547B2 · kind B2 · utility
1Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2001 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Nov 26, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F7/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Lock for a vacuum chamber which lock has a passage comprising an outer sealing element and an inner sealing element which outer sealing element can be maintained in the closed position under the influence of the pressure difference caused by the vacuum in the vacuum chamber, and can be opened against the force caused by the pressure difference, which inner sealing element under pretension can be maintained in the opened position and comprises closing element for closing the inner sealing element against the pretension, the closing element comprise at least one electromagnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.