Constant flow control valve
US4437493A · kind A · utility
53Cited by
9References
2Claims
0Family size
Inventors
Key dates
| Filing date | Aug 18, 1982 |
| Grant date | Mar 20, 1984 |
| Priority date | — |
| Expiry date | Aug 18, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7792
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
This invention relates to a constant flow control valve comprising a main flow passage whose area is variable by fluctuation of a fluid dynamic pressure, thus permitting a constant flow rate and a by-pass passage which is mounted along an external periphery of the main flow passage, has a by-pass valve opening whose area can be varied as the area of the main flow passage is varied, and is closed and sealed, thus being made to be unusable as necessary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.