US Patent 7931272 Sheet delivery and sheet-processing printing machine

Patent 7931272 was granted and assigned to Heidelberger Druckmaschinen on April, 2011 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Heidelberger Druckmaschinen

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7931272

Date of Patent

April 26, 2011

Patent Application Number

12388162

Date Filed

February 18, 2009

Patent Primary Examiner

Stefanos Karmis

Patent abstract

A sheet delivery has an endless conveyor for conveying printed sheets and a secondary gripper with a gripper bar for holding printed sheets received at their trailing edges from the endless conveyor, to be deposited on a delivery stack. A transmission generates an annular circulatory movement of the gripper bar. A first balance weight and a second balance weight are provided for compensating for interference torques and are braced for rotation in relation to one another by a spring.