Gas piston liquid flow controller
US5046925A · kind A · utility
8Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 8, 1991 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | Jan 8, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04F1/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gas piston liquid flow controller comprising a pumping chamber of fixed volume, means to separately introduce into said chamber pressurized gas and liquid, means to detect the presence of liquid at predetermined upper and lower levels in said chamber, means to withdraw a stream of liquid from said chamber for delivery to a point of use and a controller to maintain liquid in said chamber to effect constant delivery of liquid to the point of use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.