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. 15, 1980
Filed:
Aug. 17, 1979
Franz Mair, Augsburg, DE;
Erhard & Leimer KG, Augsburg, DE;
Abstract
A sheet workpiece having an edge bent over on one face of the workpiece towards the center of the workpiece is continuously displaced in a transport direction over a flat support surface that lies against the other face of the workpiece at the bent-over edge. Compressed air is blown from a guide in a flow direction extending transverse to the transport direction, outwardly from the workpiece center, and generally parallel to the surface so as to blow this bent-over edge flat. A plurality of nozzles inclined slightly downwardly toward the surface and backwardly in the transport direction may be employed, as a single elongated nozzle producing a band-shaped current of air may be used, or a plurality of nozzles spread out in a two-dimensional array. Such a flow of air may also be directed from both faces at the workpiece edge in order to flatten out this edge no matter which way it is bent over. When a plurality of nozzles are employed, each nozzle may be formed as a plug secured in a support plate having an inclined outlet passage and rotatable in order to vary the flow direction.