Washing objects and recovering contaminants with optimized pump control
US5673715A · kind A · utility
Inventor
Key dates
| Filing date | Jun 28, 1995 |
| Grant date | Oct 7, 1997 |
| Priority date | — |
| Expiry date | Jun 28, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2207/701
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for washing and recovering a contaminant from an object. A washing agent flows over the object, and the washing agent and contaminant are received in a basin. A slurry of the washing agent and contaminant are circulated through at least one separator and one filter to produce a cleaned slurry flow. The cleaned slurry flow is recirculated into the basin. A first pump which is used to flow the washing agent over the object has a supply port and a pressurized output port. A pressurized fluid supply is coupled to a variable regulator with a variable pressure output. A second pump driven by the variable pressure output impels the washing agent into the supply port of the first pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.