3-way pressure reducing valve having means for monitoring the secondary pressure
US4747425A · kind A · utility
3Cited by
9References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 12, 1986 |
| Grant date | May 31, 1988 |
| Priority date | — |
| Expiry date | Sep 12, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8326
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The invention relates to a three-way pressure reducing valve for reducing a primary pressure to a secondary pressure. Said three-way pressure reducing valve comprises means for monitoring the secondary pressure. First spool means of said pressure reducing valve and second spool means of said monitoring means are provided with first and second spring means, respectively. Further, first and second adjustment means, respectively, are provided said first and said second spool means being coaxially arranged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.