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, 1996
Filed:
Nov. 26, 1993
Gregor Flade, Meckesheim, DE;
Karl-Hermann Miltner, Dossenheim, DE;
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Abstract
A sheet feeder for a sheet-fed printing machine having a cylinder with a gripper system, movable suction conveyors for separating individual sheets from a sheet pile, the suction conveyors being disposed adjacent one another in a sheet-conveying direction, and groups of revolving adjustable conveying elements for aligning the sheets on a drive side and on an operating side of the printing machine in association with the suction conveyors and cooperating therewith for feeding the sheets to the gripper system of the cylinder of the printing machine, includes a drive system for driving the groups of conveying elements independently of one another and with varied speed so as to align the sheets on both of the sides of the printing machine, and a device disposed at locations of the revolving conveying elements for querying the sheet edges and for generating, in accordance with a response to a respective query, an electric pulse for controlling the drive system; and a method of separating and aligning the sheets in the sheet feeder.