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:
Feb. 18, 2003
Filed:
Jul. 11, 2001
Hans-Werner Bongers-Ambrosius, Munich, DE;
Martin Richter, Freising, DE;
Konrad Artmann, Wörthsee, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
A percussion electrical hand-held tool including a housing ( ), a percussion element ( ) located in the housing, and a planetary gear unit ( ) located in the housing ( ) for converting a rotational movement ( ) of the drive shaft (&ohgr;) of the hand-held tool ( ) into a reciprocating movement (&ugr;) of the percussion element ( ), with the planetary gear unit ( ) including a sun gear ( ) changing of a setting (&agr;) of which provides for adjusting of an impact amplitude of the reciprocating movement (&agr;) of the percussion element ( ), and control unit located in the housing ( ) for adjusting the impact amplitude in accordance with a manual axial force applied to the handle of the hand-held tool ( ).