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:
Jun. 12, 2001
Filed:
Jul. 30, 1999
Applicant:
Inventors:
Bernhard Ebner, Knittelfeld, AT;
Peter Kogler, Knittelfeld, AT;
Assignee:
Tamrock Voest-Alpine Bergtechnik Gesellschaft m.b.H., Zeltweg, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21C 2/510 ;
U.S. Cl.
CPC ...
E21C 2/510 ;
Abstract
In a hewing or cutting roller (,) of variable cutting width, in which two pivotable tool carriers (,) for receiving cutting or hewing tools are arranged on at least one lateral end face (,) of the roller transverse to the axis of the hewing or cutting roller (,), one of the tool carriers carries a locking pin (,) which cooperates with a hook-shaped locking member of the other tool carrier in the extended position of the tool carriers (,).