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:
Sep. 18, 2007
Filed:
May. 12, 2004
Applicants:
Morgan Kanflod, Örebro, SE;
Fredrik Öberg, Örebro, SE;
Inventors:
Morgan Kanflod, Örebro, SE;
Fredrik Öberg, Örebro, SE;
Assignee:
Atlas Copco Rock Drills AB, Orebro, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21D 21/00 (2006.01); E21F 17/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is related to a rock bolt (), expandable by means of a pressure media, for insertion into a borehole. The expandable bolt () comprises a connection unit () with means () for detachable interaction with an expansion means () for expansion of the rock bolt (), as well as with a suspension element (). The connection unit is designed with such external dimensions so that it may be inserted into the bore-hole. The invention also relates to such a rock bolting system.