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:
May. 22, 2012
Filed:
May. 21, 2009
Applicants:
Thomas Lehnert, Oberraden, DE;
Martin Lenz, Groβmaischeid, DE;
Bernd Holl, Neustadt/Wied, DE;
Günter Hähn, Königswinter, DE;
Inventors:
Thomas Lehnert, Oberraden, DE;
Martin Lenz, Groβmaischeid, DE;
Bernd Holl, Neustadt/Wied, DE;
Günter Hähn, Königswinter, DE;
Assignee:
Wirtgen GmbH, , DE;
Primary Examiner:
Int. Cl.
CPC ...
B23P 19/04 (2006.01); B25B 27/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A tool for removing a chisel, in particular from a chisel holder, having a base element which receives an actuating member, wherein the actuating member has an expeller mandrel. The actuating member is adjustable along a displacement direction. In order to be able to perform the removal simply and rapidly, the actuating member of this invention is indirectly or directly coupled to a piston of a fluid-charged cylinder, or to an electric motor unit.