Patent · US Expired

Device and method for purification and recirculation of cleaning agent in a printing machine

US5797328A · kind A · utility

6Cited by

8References

7Claims

0Family size

Assignee

MAN Roland Druckmaschinen AG · DE

Inventors

Andreas Lippold · Nidderau, DE
Edgar Dorsam · Obertshausen, DE

Key dates

Filing date	Apr 11, 1997
Grant date	Aug 25, 1998
Priority date	—
Expiry date	Apr 11, 2017

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41P2235/31
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a device and method for removal of impurities from, and recirculation of, cleaning agent in a printing machine. Contaminated cleaning agent is purified by passing it through a series of sedimentation devices. In these sedimentation devices, gravity is used to separate the cleaning agent into its constituent parts. Once the impurities have been removed from the cleaning agent, the constituent parts that can be reused are recirculated to the washing devices of the printing machine while the impurities are disposed appropriately.

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