Patent · US Active

Chopping blade and counterblade for a chopping device and process for its production

US8590355B2 · kind B2 · utility

0Cited by

10References

21Claims

0Family size

Assignee

Rasspe Systemtechnik Gmbh & Co., KG · DE

Inventors

Michael Flanhardt · Langenfeld, DE
Karlfried Platz · Solingen, DE
Manfred Gröning · Dortmund, DE
Heinz-Gunter Schumacher · Eichelhardt, DE
Gerd Bernhardt · Daun, DE
Andre Heinrich · Kitzscher, DE
Andreas Acimas · Veldhoven, NL

Key dates

Filing date	Apr 11, 2005
Grant date	Nov 26, 2013
Priority date	—
Expiry date	Dec 21, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB21D53/647
WIPO fieldMachine tools
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.