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:
Aug. 04, 1992
Filed:
May. 29, 1991
Peter Knauer, Munster/Lech, DE;
Erich Wech, Augsburg, DE;
MAN Roland Druckmaschinen AG, Offenbach am Main, DE;
Abstract
To permit flying plate change of printing plates (14, 15; 28, 29) on plate cylinders (10, 11; 24, 25) of an offset printing system having blanket cylinders (1,2), one of which can function as an impression cylinder (2, 1), the plate cylinders, to maintain register, are axially fixed in the frame (3) of the printing machine, but the blanket cylinders are movable by an eccenter system between three positions (6, 7, 8) and an ink application roller (16) to which also damping fluid can be applied from a damper (20) is selectively engageable with either one of the plate cylinders. Thus, only the blanket cylinder (1, 2) and the associated impression cylinder (2, 1) need be shifted for respective engagement with the plate cylinders, and register alignment of the plate cylinders is maintained. An ink application roller is selectively engageable with the plate cylinders, for example by being supported on a swing shaft or a swing lever (17), with which also a damping fluid application roller (19) is engageable.