Patent · US Expired

Apparatus for preparing a machining liquid of an electroerosion machine

US5034121A · kind A · utility

7Cited by

1References

7Claims

0Family size

Inventors

Josef Budin · Minusio, CH
Hugo Kutil · Winterthur, CH
Gideon Levy · Orselina, CH

Key dates

Filing date	Aug 18, 1989
Grant date	Jul 23, 1991
Priority date	—
Expiry date	Aug 18, 2009

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2321/2083
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An apparatus for preparing a machining liquid of an electroerosion machine comprises a filter to which is supplied a concentrate flow and from which a permeate flow is drained off. The filter is constructed as a membrane filter, the clogging of which is prevented in that the concentrate flow direction is periodically reversed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.