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:
Jan. 20, 1998
Filed:
Sep. 30, 1996
Applicant:
Inventor:
Anton Neumaier, Furstenfeldbruck, DE;
Assignee:
Hilti Aktiengesellschaft, Furstentum, LI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
173 13 ; 173178 ;
Abstract
A screw driving tool includes a housing (1) containing a motor (2), and an axially fixed drive pinion (3) powered by the motor. An axially extending spindle (5) is mounted in the housing (1) and is axially displaceable against the force of a spring (4) relative to the drive pinion and a ball shaped clutch element (6) positioned between the drive pinion and the spindle and cooperating with stop faces on the drive pinion and spindle. The clutch element (6) can be disengaged from the drive pinion and is axially displaceable and rotatable to a limited extent relative to the spindle (5).