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:
Apr. 14, 2015
Filed:
Oct. 29, 2009
Sverker Hartwig, Täby, SE;
Gunnar Nord, Sollentuna, SE;
Federico Scolari, Milan, IT;
Jan Folke Wallenius, Täby, SE;
Morgan Norling, Örebro, SE;
Kaj Emanuelsson, Viken, SE;
Sverker Hartwig, Täby, SE;
Gunnar Nord, Sollentuna, SE;
Federico Scolari, Milan, IT;
Jan Folke Wallenius, Täby, SE;
Morgan Norling, Örebro, SE;
Kaj Emanuelsson, Viken, SE;
Atlas Copco Craelius AB, Marsta, SE;
Abstract
A method for driving tunnels, galleries, shafts or the like with a driving device (), including: that a cutting head () rotating around a general axis of rotation (R) and having cutting elements directed essentially radially outwardly is applied against a rock surface to be worked. The rock cutting elements (), are formed on cutting rolls () are brought to roll against the rock side during pressing against the rock and rotation of the cutting head (), and the rock cutting elements during rolling are brought to cut sidewardly arranged grooves in the rock surface at a distance from each other. The invention also concerns a rotatable cutting head and a device and a rig for driving tunnels, galleries, shafts or the like.