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:
Nov. 30, 2010
Filed:
May. 12, 2004
Applicants:
Fredrik Öberg, Örebro, SE;
Per Jonson, Örebro, SE;
Inventors:
Fredrik Öberg, Örebro, SE;
Per Jonson, Örebro, SE;
Assignee:
Atlas Copco Rock Drills AB, Orebro, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21D 20/02 (2006.01); E02D 5/74 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device for rock bolting with an adapter device () for connection of a drilling machine () to a self drilling rock bolt (), in which the adapter device has an adapter element () which is sealingly surrounded by a swivel sleeve () for connection to one or more external source for flushing medium () and bolt grouting medium (), and in which the adapter element has a thread for connecting to a corresponding thread on the rock bolt (), and an integral connection portion for connection to the drilling machine ().