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:
Apr. 16, 1996
Filed:
Aug. 09, 1994
William R Hartley, Macomb, MI (US);
Western Atlas, Inc., Hebron, KY (US);
Abstract
A device for prehemming at least a portion of an upstanding flange of a sheet metal panel which has a tapered roller which is moved into engagement with the flange while moving the roller along the flange with its axis of rotation disposed in a path which is substantially parallel to the fold line of the flange along the periphery of the panel. The roller is journalled for rotation on an arm pivotally carried by a slide which is moved by a drive cylinder along a lineal path generally parallel to the fold line of the portion of the flange to be prehemmed. As the slide moves linearly the arm is pivoted to move the roller transversely by a follower carried by the arm and received in an elongate cam track having a portion contoured to impart pivotal movement of the arm to cause the roller to follow the desired path of travel substantially parallel to the fold line of the flange for prehemming the flange by bending it to an acute included angle relative to an adjoining portion of the panel.