Valve
US4754693A · kind A · utility
18Cited by
6References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 30, 1987 |
| Grant date | Jul 5, 1988 |
| Priority date | — |
| Expiry date | Mar 30, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87225
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to a 5/3-valve, which contains two separately controllable control members which are arranged coaxially with one another in the valve housing, are movable independently of one another and each bear two sealing surfaces which in the two end positions of the relevant control member engage with an appertaining valve seat of the valve housing. Such a 5/3-valve is distinguished by a very simple construction, compactness and a long working life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.