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:
Dec. 05, 1995
Filed:
Apr. 14, 1994
Rudi Junghans, Wilhelmsfeld, DE;
Mathias Zuber, Helmstadt-Bargen, DE;
Heidelberger Druckmaschinen Aktiengesellschaft, Heidelberg, DE;
Abstract
A printing press and a method operating the same. The printing press includes: a frame; a plate cylinder being rotatably mounted on the frame; an inking unit for supplying ink to the plate cylinder. The inking unit comprises: an ink fountain for containing ink; a plurality of inking rollers; means for transferring ink between said ink fountain and said plurality of inking rollers; a plurality of ink applicator rollers for transferring ink between said plurality of inking rollers and said plate cylinder. The printing press further includes a dampening unit for supplying damping medium to said plate cylinder. The dampening unit comprises a form roller having an elastic outer cylindrical surface which can be engaged at the printing plate of a plate cylinder, a driven dampening distributor having a chromium outer cylindrical surface and being assigned to the form roller, and further dampening-unit rollers supplying the form roller with the dampening medium contained in a dampening-medium vessel. The dampening distributor is preferably provided with cups arranged close to each other and preferably featuring each a depth of approximately 20 micrometers, and, preferably, the ridges between the cups: are rounded off; permeate the dampening-medium film and the ink film on the form roller; and, under a certain contact pressure, are in contact with the outer cylindrical surface of the form roller and drive the form roller.