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:
Jun. 21, 2022
Filed:
Dec. 20, 2019
Applicant:
Hilti Aktiengesellschaft, Schaan, LI;
Inventors:
Christian Schallert, Nueziders, AT;
Jürgen Pritz, Rankweil, AT;
Marcel Wondra, Bludenz, AT;
Carl Hoffmann, Lindau, DE;
Walter Vallaster, Göfis, AT;
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25D 11/12 (2006.01); B25D 11/06 (2006.01);
U.S. Cl.
CPC ...
B25D 11/125 (2013.01); B25D 11/062 (2013.01); B25D 2250/095 (2013.01);
Abstract
A chiseling hand-held power tool having a tool holder for holding a tool on a working axis, an electric motor, and a striking mechanism. The striking mechanism has an excitation piston coupled to the motor, a striker guided on the working axis and a pneumatic chamber closed by the excitation piston and the striker for coupling a movement of the striker to the excitation piston. The rotational speed of the electric motor corresponds to at least 20 times the striking rate of the striking mechanism.