Isolation chamber valve
US4848401A · kind A · utility
11Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1987 |
| Grant date | Jul 18, 1989 |
| Priority date | — |
| Expiry date | Nov 5, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87547
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to an isolation chamber valve. The isolation chamber valve of the invention includes, for connecting its inlet passage and its outlet passage, a by-pass circuit of small section comprising at least a flap the opening and closing of which can be controlled as required. This isolation chamber valve is used in particular in the operation of shafts for deposits or the storage of gas or other fluids under pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.