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:
Aug. 06, 2013
Filed:
Sep. 06, 2005
Thomas Hofbrucker, Mammendorf, DE;
Thomas Bader, Landsberg, DE;
Markus Looser, S. Links, DE;
Horst Rahmsdorf, Munich, DE;
Thomas Hofbrucker, Mammendorf, DE;
Thomas Bader, Landsberg, DE;
Markus Looser, S. Links, DE;
Horst Rahmsdorf, Munich, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
The screwdriving power tool includes a hollow spindle () rotatably supported in the tool housing () and driven by a motor (), a clutch () that rotatably connects and disconnects the hollow spindle () with and from the motor (), respectively, in engagement and disengagement positions of the clutch (), a screwing-in spindle () connected with a chuck () for a working tool () and connected with the hollow spindle () for a joint rotation therewith and for an axial displacement relative thereto, and a percussion mechanism () for applying a pulsed axial force to the screwing-in spindle (), with the clutch () being brought into its engagement position by the screwing-in spindle () by being displaced against a biasing force of the clutch springs (), and being locked in its engagement position.