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:
Dec. 09, 2008
Filed:
Oct. 11, 2003
Applicants:
Günter Tewes, Windhagen, DE;
Bernd Holl, Neustadt, DE;
Inventors:
Günter Tewes, Windhagen, DE;
Bernd Holl, Neustadt, DE;
Assignee:
Wirtgen GmbH, Windhagen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C 35/19 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cutting tool of a cutting machine having a base part and a bit holder. According to this invention, the bit holder has a plug-in attachment, retained in a socket of the base part that has a stop against which the bit holder rests. To prevent the penetration of water and stone dust and to allow the bit holder to be easily detached from the base part, a sealing element is located between the bit holder and the base part, surrounding at least sections of the socket.