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:
Oct. 22, 1996
Filed:
Sep. 26, 1995
Achim Stoffler, Offenbach, DE;
Valentin Gensheimer, Muhlheim, DE;
Edgar Werber, Offenbach, DE;
Marc Hinz, Rodenbach, DE;
Peter Hummel, Offenbach, DE;
Jurgen Wenzel, Hainburg Hess, DE;
Albrecht Volz, Rodermark, DE;
Joachim Blumor, Hainburg Hess, DE;
Hubert Zschetzsche, Offenbach, DE;
Manfred Straub, Offenbach, DE;
MAN Roland Druckmaschinen, , DE;
Abstract
An undershot inking unit and associated method are disclosed. The undershot inking unit includes an ink fountain roller that is controlled independently of the printing speed of the printing machine, and in which the rotational contact angle of the distributor roller on the ink fountain roller is varied according to the printing unit speed. The method comprises controlling the rotational speed of the ink fountain roller independently of the printing speed of the printing machine; and varying the rotational contact angle of the intermittent ductor roller on the ink fountain roller according to the printing speed of the printing machine. In a preferred embodiment, the apparatus includes two coaxial cams rotatably adjustable with respect to each other. Each cam includes a predominant circumferential contour and a subordinate circumferential contour. By adjusting the relative rotational position of the cams, the rotational contact angle of the ductor roller on the ink foundation roller is varied according to the printing unit speed.