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:
Aug. 24, 2010
Filed:
Jul. 02, 2005
Stefan Lohmann, Mulheim, DE;
Karlheinz Fritz, Sprochkhovel, DE;
Reiner Koch, Mulheim, DE;
Markus Mellwig, Hagen, DE;
Hendrik Moller, Selm, DE;
Uwe Autschbach, Oberhausen, DE;
Stefan Lohmann, Mulheim, DE;
Karlheinz Fritz, Sprochkhovel, DE;
Reiner Koch, Mulheim, DE;
Markus Mellwig, Hagen, DE;
Hendrik Moller, Selm, DE;
Uwe Autschbach, Oberhausen, DE;
Atlas Copco Construction Tools GmbH, Essen, DE;
Abstract
The invention relates to a striking device () comprising a striking mechanism () which is driven by a pressure medium. Said device comprises a percussion piston () which can be displaced back and forth by means of a control device and a control valve which is embodied as a pressure shut-off valve () or as a stop valve, said control valve automatically stopping the striking mechanism if it exceeds a predetermined maximum value based on the working pressure controlling the inlet line, blocking the pressure line () or maintaining the control device in one of the and positions thereof. The inventive striking device also comprises a hydraulic catcher buffer which is used to brake the percussion piston when it exceeds a predetermined impact plane. According to the invention, the control valve must remain deactivated at least as long as the percussion piston is displaced on the hydraulic catcher buffer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile