Control device for liquid or gaseous medium
US4821515A · kind A · utility
2Cited by
4References
17Claims
0Family size
Inventor
Key dates
| Filing date | Mar 7, 1988 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Mar 7, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86734
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is proposed a volumetric control device acting on a liquid, a gas or an emulsion and comprising a rotary body arranged within a housing having openings. The rotary body is axially displaceable. The regulation of the volume results on one hand from the rotation speed of the body respectively of that of the housing and on the other hand from the axial displacement of the rotary body. Within a given time, according to the rotation speed, a different quantity will be metered and according to the axial position a different opening volume is used for the metering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.