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:
Feb. 05, 2008
Filed:
Dec. 27, 2002
Karl-heinz Helmstädter, Heidelberg, DE;
Hans Peter Boguhn, Heidelberg, DE;
Hans-peter Hiltwein, Waghäusel, DE;
Günter Stephan, Wiesloch, DE;
Karl-Heinz Helmstädter, Heidelberg, DE;
Hans Peter Boguhn, Heidelberg, DE;
Hans-Peter Hiltwein, Waghäusel, DE;
Günter Stephan, Wiesloch, DE;
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Abstract
A sheet-fed rotary printing press for selective recto printing and recto and verso printing includes a three-drum reversing device having three cylinders cooperatively disposed behind one another between respective impression cylinders of two adjacent printing units. The three cylinders include one at least double-size transfer cylinder, one at least double-size storage drum, and one at least single-size reversing drum. Grippers prescribe a circular periphery of the transfer cylinder. The transfer cylinder has an outer contour smaller than the circular periphery prescribed by the grippers of the transfer cylinder. Other grippers prescribe a circular periphery of the reversing drum. The reversing drum has an outer contour smaller than the circular periphery prescribed by the grippers of the reversing drum. A method of operating the three-drum reversing device is also provided.