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:
Oct. 26, 1999
Filed:
May. 15, 1998
Dennis M Burgess, Minnetonka, MN (US);
William J Campbell, Minnetonka, MN (US);
Mark L Palmer, Burnsville, MN (US);
Burgess Industries, Inc., Plymouth, MN (US);
Abstract
An apparatus and a method configure lithographic plates by cutting corners and bending edges in preparation for use in web offset printing. The lithographic plate is precisely aligned and immobilized on a support bed, which has bending anvils at opposing edges of the bed. A corner die cutter advances into position above a corner of the plate, cuts a corner of the plate and then retracts. An eccentric camming member for bending the plate edges has full bearing supporting ends and additional bearings intermediate the ends. The eccentric camming members lower to the plate and rotate within their bearings to form bends of selected angles in opposing edges of the plate. The eccentric camming members are then counter rotated and raised to their position above the plate. The movements of the corner die cutter and the eccentric camming member are precisely sequenced with each other by programmable logic control.