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:
Sep. 17, 1996
Filed:
Feb. 14, 1995
Karl-Hermann Miltner, Dossenheim, DE;
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Abstract
A method and a device are disclosed for determining a degree of fouling of a printing unit of a printing machine. The method comprises washing a printing unit with a washing medium. A degree of fouling of the washing medium is measured, and a degree of fouling of the printing unit is determined from the degree of fouling of the washing medium. The device for performing the method comprises a translucent conduit, such as a transparent pipe, through which the washing medium in the form of a washing solution is conducted. A light source is disposed on one side of the conduit for shining light through the conduit. An optical sensor is disposed on the other side of the conduit opposite from the light source. The sensor receives the light which permeates the conduit. The degree of absorption of the light in the washing medium is proportional to its degree of soiling.