The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 1999
Filed:
Feb. 19, 1997
Applicant:
Inventors:
Werner Sondergeld, Gross Glienicke, DE;
Heike Schneider, Rodgau, DE;
Assignee:
MAN Roland Druckmaschinen AG, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41F / ;
U.S. Cl.
CPC ...
101424 ; 101483 ;
Abstract
A method and apparatus for cleaning a printing cylinder surface in a printing machine of strongly adhering dirt, such as paper dust and hardened printing ink. This is achieved by applying a predetermined coating of alkaline cleaning agent to the printing cylinder surface by a cleaning roller and allowing the cleaning agent to act on the surface for a defined time, preferably greater than sixty minutes, and then subsequently removing the cleaning agent from the printing cylinder surface by means of a cleaning fluid, such as water.