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:
Jun. 18, 2013
Filed:
Oct. 17, 2008
Applicants:
Malte Seidler, Heidelberg, DE;
Detlef Strunk, Heidelberg, DE;
Inventors:
Malte Seidler, Heidelberg, DE;
Detlef Strunk, Heidelberg, DE;
Assignee:
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Primary Examiner:
Int. Cl.
CPC ...
B41F 5/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A sheet-fed rotary printing machine includes at least two electric drive motors acting on a gearwheel train which mechanically connects a plurality of printing units to one another. A device for controlling the printing machine includes a control loop for each electric drive motor having a higher-frequency control element. At least one control loop has a low-frequency control element supplying an output signal picked up at the control loops in a predetermined ratio. A sheet-fed rotary printing machine having the device is also provided.