Filter system for wire electronic discharge machining
US4740315A · kind A · utility
Inventor
Key dates
| Filing date | Aug 28, 1986 |
| Grant date | Apr 26, 1988 |
| Priority date | — |
| Expiry date | Aug 28, 2006 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention is directed to a method of removing metallic hydroxide salts having impurities from an aqueous medium. The method includes the steps of: PA0 (a) providing an edge type filter; PA0 (b) passing an aqueous medium with metallic hydroxide salts having impurities to the filter; PA0 (c) removing the metallic hydroxide salts with the filter and forming a cleaned aqueous medium; PA0 (d) removing the cleaned aqueous medium from the filter; PA0 (e) drying the filter after the filter has become blocked by the metallic hydroxide salts and forming a powder; and PA0 (f) removing the powder from the filter, whereby the filter is unblocked.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.