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:
May. 18, 1993
Filed:
Jul. 08, 1991
Rainer Buschulte, Bad Schonborn, DE;
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Abstract
A printing machine for performing flat-bed printing having a printing form with hydrophobic and hydrophilic area thereon corresponding to an image to be printed, and a device for electrochemically converting, respective areas thereof for producing a printing copy from the hydrophobic into the hydrophilic state by means of a current-conduction arrangement, including a fluid applicator for applying a hydrophobic fluid full-surface to a surface of the printing form, and a control device for controlling the current-conduction arrangement for forming appropriate current paths and for electrochemically removing the hydrophobic fluid area-by-area in accordance with the hydrophilic areas required for the image to be printed; and a method of operation thereof.