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:
Dec. 06, 2022
Filed:
Nov. 21, 2018
Applicant:
Hilti Aktiengesellschaft, Schaan, LI;
Inventor:
Adrian Steingruber, Schwabmuenchen, DE;
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25F 5/00 (2006.01); B25D 17/24 (2006.01);
U.S. Cl.
CPC ...
B25F 5/006 (2013.01); B25D 17/24 (2013.01); B25D 2250/371 (2013.01);
Abstract
An electric hand-held power tool (), in particular a hammer drill or chipping hammer, having a percussion mechanism assembly (), which vibrates along a vibration axis (A), and a handle assembly (), which is vibrationally decoupled via an anti-vibration unit (), wherein the anti-vibration unit () has a coil spring (), oriented along the vibration axis (A), having a plurality of turns, wherein the coil spring () is in the form of a cylindrically progressive compression spring () having two stiffness regions (S, S) with different levels of stiffness.