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:
Oct. 17, 2017

Filed:

Oct. 01, 2014
Applicant:

Bomag Gmbh, Boppard, DE;

Inventors:

Robert Laux, Neuwied, DE;

Joachim Hermes, Viernheim, DE;

Arne Schlichting, Munich, DE;

Daria Hefter, Mannheim, DE;

Monica Wolf, Neuwied, DE;

Domenico Muscara, Muehlhausen, DE;

Bernd Raufelder, Weingarten, DE;

Assignee:

BOMAG GmbH, Boppard, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21C 35/183 (2006.01); E21C 35/18 (2006.01);
U.S. Cl.
CPC ...
E21C 35/183 (2013.01); E21C 35/18 (2013.01); E21C 2035/1803 (2013.01); E21C 2035/1813 (2013.01); E21C 2035/1816 (2013.01);
Abstract

The present invention relates to a chisel device for a ground milling machine, comprising a chisel holder having a mounting orifice and a milling chisel, wherein the milling chisel has a basic body of, in particular, a uniform material and has a shaft and a tool region, said shaft being held, under working conditions, in the mounting orifice while the tool region (P) protrudes, under working conditions, from the chisel holder, wherein said milling chisel has a wear protection cap consisting of carbide and having a tip and a protective jacket, wherein the wear protection cap is positioned on the tool region (P) in such a manner that it covers at least 70% of the external surface of the tool region (P). The present invention also relates to a milling chisel for such a chisel device.


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