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. 21, 2006
Filed:
Dec. 07, 2004
Manfred Ludwig, Landsberg, DE;
Reinhard Riedl, Finning, DE;
Manfred Ludwig, Landsberg, DE;
Reinhard Riedl, Finning, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
A hand-held power screwdriver includes a low-noise torque clutch () for transmitting torque to a tool spindle () and formed of claw clutch () and ratchet clutch (), with the ratchet clutch () having a rotatably driven first ratchet member () and a second ratchet member () both having, respectively, oppositely oriented, circumferentially arranged, oblique cams (), with the claw clutch () having a first claw member () and a second claw member () having oppositely oriented claws (), respectively, the first claw member () of the claw clutch () being fixedly connected with the second ratchet member () of the ratchet clutch () for joint rotation therewith, and with the screwdriver further including at least one engagement member () for connecting the second claw member () with the tool spindle () for joint rotation therewith and for disconnecting the claw member () from the tool spindle () and a retaining element for connecting the second claw member () of the claw clutch () with the tool spindle () in a free-running position.