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:
Apr. 23, 2013
Filed:
Mar. 07, 2005
Applicant:
Stig Roland Henriksson, Nacka, SE;
Inventor:
Stig Roland Henriksson, Nacka, SE;
Assignee:
Atlas Copco Construction Tools AB, Nacka, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23Q 5/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A hydraulic hammer comprising a housing () with a longitudinal bore (), cylinder sleeve () supported in the bore () a rear and cover () closing the bore (), and a hammer piston () reciprocally powered in the cylinder sleeve () for delivering blows to a working implement inserted in the guide sleeve () mounted at the front end of the bore (). The hydraulic hammer also comprises a distribution valve (), for directing pressure fluid to the hammer piston (), communicating the pressure fluid source and the cylinder sleeve (). The valve () comprises both a clearance seal means () and a seat seal () for improved tightness.