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. 24, 2015
Filed:
Aug. 31, 2011
Applicants:
Michael Wierer, Bludenz, AT;
Adrian Scherrer, Walzenhausen, CH;
Fabian Martin, Gossau, CH;
Josef Althaus, Fischen, DE;
Inventors:
Michael Wierer, Bludenz, AT;
Adrian Scherrer, Walzenhausen, CH;
Fabian Martin, Gossau, CH;
Josef Althaus, Fischen, DE;
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25D 17/24 (2006.01); B25D 17/04 (2006.01);
U.S. Cl.
CPC ...
B25D 17/043 (2013.01); B25D 17/24 (2013.01); B25D 2211/003 (2013.01); B25D 2211/068 (2013.01); B25D 2217/0092 (2013.01);
Abstract
A handheld power tool is disclosed. The handheld power tool has a drive oscillating along a working axis and a vibration damper. The vibration damper has a mass element suspended in a spring mechanism. The spring mechanism acts with a first spring stiffness and acts with a second spring stiffness. The first spring stiffness is different from the second spring stiffness.