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:
May. 29, 2001
Filed:
Aug. 16, 2000
Applicant:
Inventors:
Rudolf Berger, Grünwald, DE;
Wolfgang Schmid, Munich, DE;
Assignee:
Wacker-Werke GmbH & Co. KG, , DE;
Primary Examiner:
Int. Cl.
CPC ...
B25D 1/104 ;
U.S. Cl.
CPC ...
B25D 1/104 ;
Abstract
The invention relates to a pneumatic impact mechanism for a paving breaker and/or hammer drill which is characterized by a drive piston (,) having air equalization slits (,) and an extremely reduced wall thickness of the guide sleeve (,) thereof This leads to a distinct reduction of the vibrations during the no-load operation of the impact mechanism, whereby advantageous characteristics of the impact mechanism with regard to wear behavior and compactness can be retained.