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:
Mar. 04, 2003
Filed:
Jul. 03, 2001
Horst Rahmsdorf, Munich, DE;
Thomas Hofbrucker, Mammendorf, DE;
Markus Looser, Weilheim, DE;
Thomas Bader, Munich, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
A screw driving tool including a housing ( ), a hollow spindle ( ) rotatably supported in the housing ( ) with a possibility of a limited axial displacement relative thereto, a screw-in spindle at least partially extending in the hollow cylinder ( ), connected thereto for joint rotation therewith, and supported for a limited axial displacement relative thereto, an impact mass ( ) for displacing the screw-in-spindle ( ) in a screw-in direction, a drive motor ( ) for rotating the screw-in spindle ( ), and a clutch ( ) located between the hollow spindle ( ) and the drive motor output shaft ( ) for transmitting rotational movement to the hollow spindle ( ).