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:
Jul. 12, 2005
Filed:
Oct. 28, 2003
Gerhard Fritz Blöhdorn, Schönkirchen, DE;
Peter Klaus Melzer, Kiel, DE;
Heinz Gerhard Franke, Kiel, DE;
Volker Haushahn, Kiel, DE;
Gerhard Fritz Blöhdorn, Schönkirchen, DE;
Peter Klaus Melzer, Kiel, DE;
Heinz Gerhard Franke, Kiel, DE;
Volker Haushahn, Kiel, DE;
Heidelberger Druckmaschinen Aktiengesellschaft, Heidelberg, DE;
Abstract
A device and a method detect an edge of a recording material, in particular a printing plate, in an exposer for recording printing originals. An exposer has an exposure drum for holding the printing plate, and an exposure head, which is moved axially along the exposure drum and focuses exposure beams onto the printing plate. The position of the edge of the printing plate is determined by a sensing device. To this end, a sensing finger is pivoted into a groove in the surface of the exposure drum and a signal is generated by a sensor when the sensing finger moves when it touches the edge of the recording material. The sensor used is preferably a microswitch. The axial position of the edge of the printing plate is determined by counting the cycles of the feed drive that moves the sensing device.