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:
Nov. 25, 2003
Filed:
Jul. 24, 2002
Konrad Artmann, Worthsee, DE;
Johann Augustin, München, DE;
Martin Mayr, Ilmmünster, DE;
Martin Richter, Freising, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
An electric tool device ( ) for an at least partially rotating and percussive striking driving mechanism with a pneumatic striking mechanism ( ), which is driven over a gear assembly ( ) by an electronically commutated electric motor ( ) with an internal rotor ( ) having poles ( ) and an external stator ( ), having field coils ( ) connected with a DC-AC converter of control electronics ( ), the power take-off side of the rotor shaft ( ) being mounted in the gear assembly ( ) and the driving end of the rotor shaft ( ) with the freely protruding poles ( ) engaging the stator ( ), being introduced coaxially into the stator ( ).