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:
Sep. 02, 2003
Filed:
Nov. 02, 2001
Peter Ostermeier, Diessen, DE;
Wolfgang Erdt, Martinsried, DE;
Peter Ehe, Röns, AT;
Marcus Flock, Tholey, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
An arrangement for transmitting a torque from a power tool to a working tool and including a shank forming part of the working tool and having following one another, in the operational direction of the working tool, first, second, third, and fourth regions (B B B B ), at least two drive grooves ( ) extending parallel to a working tool axis over all of the shank regions (B B B B ), and at least one additional drive groove ( ) extending in third and fourth regions (B B ) of the shank ( ), with the arrangement further including a chuck ( ) having an opening ( ) for receiving the shank ( ), at least one locking element ( ) projecting into the receiving groove ( ) for engagement into the circumferential groove ( ) of the shank ( ), at least two drive dogs ( ) and an additional drive dog projecting into the receiving groove ( ) for engagement in the first drive grooves ( ) and the at least one additional drive groove ( ).