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:
Nov. 26, 2013

Filed:

Apr. 11, 2005
Applicants:

Michael Flanhardt, Langenfeld, DE;

Karlfried Platz, Soligen, DE;

Manfred Gröning, Dortmund, DE;

Heinz-günter Schumacher, Eichelhardt, DE;

Gerd Bernhardt, Baunewitz, DE;

André Heinrich, Otterwisch, DE;

Andreas Acimas, Solingen, DE;

Inventors:

Michael Flanhardt, Langenfeld, DE;

Karlfried Platz, Soligen, DE;

Manfred Gröning, Dortmund, DE;

Heinz-Günter Schumacher, Eichelhardt, DE;

Gerd Bernhardt, Baunewitz, DE;

André Heinrich, Otterwisch, DE;

Andreas Acimas, Solingen, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Cutting blades and counterblades are presented having long edge life for chopping devices equipped with blades mounted on rotating drums and with counterblades which fit into the gaps between the blades, the blades and/or counterblades being produced by rolling at least one of the longitudinal edges of a piece of flat strip material to form a slightly rounded, prismatic cutting edge, the rolling being continued until satisfactory sharpness is obtained.


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