Bore-hole pump
US5582505A · kind A · utility
1Cited by
15References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 3, 1995 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | May 3, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D15/0022
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A bore-hole pump for pumping a highly viscous fluid, into which is fed a solvent which has a low viscosity and which is miscible with the fluid. A shutoff device is disposed between an inlet of the bore-hole pump and an actual inlet of the pump part. The shut-off device is activated by the solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.