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. 31, 2016
Filed:
Jun. 18, 2010
Applicants:
Jörgen Rodert, Saltsjö-Boo, SE;
Kurt Andersson, Tyresö, SE;
Inventors:
Jörgen Rodert, Saltsjö-Boo, SE;
Kurt Andersson, Tyresö, SE;
Assignee:
Atlas Copco Rock Drills AB, Örebro, SE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 7/00 (2006.01); B25F 5/02 (2006.01); E21B 1/00 (2006.01); B25D 17/00 (2006.01);
U.S. Cl.
CPC ...
B25F 5/02 (2013.01); B25D 17/00 (2013.01); E21B 1/00 (2013.01);
Abstract
An arrangement intended to be part of a rock drilling machine for percussive drilling. The arrangement includes a casing part with at least one plane end plane. The end plane includes at least a first region and a second region. The first region includes at least a part of the outer contour of the end plane and includes of a material that resists corrosion.