Pressure extraction pump system for recovering liquid hydrocarbons from ground water
US4826406A · kind A · utility
8Cited by
42References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 8, 1987 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Oct 8, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04F1/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
There is disclosed a pressure extraction pump system for recovering liquid hydrocarbons from contaminated ground water collected in a well. The pump system includes a pump with a pump vessel and an open top sleeve extending above the pump vessel for skimming the upper portion of the liquid collected in a well bore. The pump also includes a liquid level sensing device for sensing the level of the liquid in the sleeve and activating a pumping cycle. The pump also has a quick closing intake valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.