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. 19, 2006
Filed:
Oct. 30, 2003
Markus Gerstenberger, Heidelberg, DE;
Christian Hieb, Neuhofen, DE;
Karl-heinz Helmstädter, Heidelberg, DE;
Raimund Schröder, Hockenheim, DE;
Thorsten Eckart, Ilvesheim, DE;
Markus Gerstenberger, Heidelberg, DE;
Christian Hieb, Neuhofen, DE;
Karl-Heinz Helmstädter, Heidelberg, DE;
Raimund Schröder, Hockenheim, DE;
Thorsten Eckart, Ilvesheim, DE;
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Abstract
A machine processing printing-material sheets contains a first sheet transport drum and a second sheet transport drum disposed immediately after the first sheet transport drum in a sheet transport direction. The first sheet transport drum has gripper systems which describe a gripper flight circle during its rotation and a drum profile deviating substantially from a circular shape with outer contour regions running between the gripper systems and set back from the gripper flight circle. The second sheet transport drum has a sheet support surface with pneumatic grooves formed therein. The sheet support surface is composed of a first and second comb segments each with segment prongs. The pneumatic grooves are introduced into the segment prongs of at least one of the comb segments. The pneumatic grooves are preferably introduced both into the segment prongs of the first comb segment and into the segment prongs of the second comb segment.