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:
Aug. 14, 2018
Filed:
Sep. 01, 2014
Applicants:
Wirtgen Gmbh, Windhagen, DE;
Betek Gmbh & Co. KG, Aichhalden, DE;
Inventors:
Thomas Lehnert, Oberraden, DE;
Karsten Buhr, Willroth, DE;
Cyrus Barimani, Königswinter, DE;
Heiko Friederichs, Aichhalden, DE;
Karl Kammerer, Fluorn-Winzeln, DE;
Markus Roth, Aichhalden, DE;
Assignees:
Wirtgen GmbH, , DE;
Betek GmbH & Co. KG, , DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21C 35/19 (2006.01); E21C 35/193 (2006.01); B28D 1/18 (2006.01);
U.S. Cl.
CPC ...
B28D 1/186 (2013.01); E21C 35/19 (2013.01); E21C 35/1933 (2013.01);
Abstract
A chisel holder for a ground processing machine includes a base portion including a chisel receiver and a holder receiver. The chisel receiver includes a chisel introduction region for receiving a threaded shaft of a chisel. The holder receiver is configured to receive an internally threaded nut. The holder receiver includes at least one retention face configured to secure the nut against rotation at a peripheral side or the nut.