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.

Date of Patent:
Aug. 27, 1985

Filed:

May. 16, 1983
Applicant:
Inventor:

Otto Kunzmann, Neuffen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B / ; B24B / ;
U.S. Cl.
CPC ...
412-7 ; 140 924 ; 412 38 ; 412 39 ;
Abstract

For aligning the binding perforations of a pile of sheets, straight prongs are inserted in the perforations and, during their withdrawal, are moved in non-positive manner in the direction of a curved shaped surface, so that the tip area of the prongs presses the back of the pile against the shaped surface and consequently the desired curved shape of the perforation is obtained.


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