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:
Jan. 22, 2008
Filed:
May. 12, 2004
Tommy Persson, Dylta-Bruk, SE;
Morgan Kanflod, Örebro, SE;
Fredrik Öberg, Örebro, SE;
Tapio Toivonen, Örebro, SE;
Niclas Örjas, Örebro, SE;
Hans Gustavsson, Örebro, SE;
Göran Sjöstedt, Örebro, SE;
Tommy Persson, Dylta-Bruk, SE;
Morgan Kanflod, Örebro, SE;
Fredrik Öberg, Örebro, SE;
Tapio Toivonen, Örebro, SE;
Niclas Örjas, Örebro, SE;
Hans Gustavsson, Örebro, SE;
Göran Sjöstedt, Örebro, SE;
Atlas Copco Rock Drills AB, Orebro, SE;
Abstract
The present invention is related to a method for manual installation of rock bolts expandable by means of a pressure media comprising manual coupling of a pressure source to a rock bolt to be expanded. The method comprises the steps of an operator starting a sequence whereby the rock bolt is pressurized to a predetermined pressure, and it being ensured that the predetermined pressure is kept for a predetermined period of time. The present invention is also related to such a control system, and an apparatus comprising such a control system.