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:
Oct. 21, 2008
Filed:
Sep. 12, 2003
Applicants:
Kurt Andersson, Tyresö, SE;
Per Jonsson, Örebro, SE;
Inventors:
Kurt Andersson, Tyresö, SE;
Per Jonsson, Örebro, SE;
Assignee:
Atlas Copco Rock Drills AB, Orebro, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02D 7/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Impact adapter for transfer of impacts and rotation from an impact rock drilling machine to a drill string comprising a first end () for connection to a drill string and a second end provided with ridges () and interposed grooves () for transfer of rotation. The grooves () at the end () directed away from the first end () of the impact adapter () are widened in the direction away from the first end ().