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:
Feb. 10, 2015
Filed:
Jan. 26, 2011
Mats Kristerson, Vollsjö, SE;
Carl-gustav Martinsson, Löberöd, SE;
Sverker Hartwig, Täby, SE;
Kaj Emanuelsson, Viken, SE;
Morgan Norling, Örebro, SE;
Gunnar Nord, Sollentuna, SE;
Mats Kristerson, Vollsjö, SE;
Carl-Gustav Martinsson, Löberöd, SE;
Sverker Hartwig, Täby, SE;
Kaj Emanuelsson, Viken, SE;
Morgan Norling, Örebro, SE;
Gunnar Nord, Sollentuna, SE;
Atlas Copco Craelius AB, Märsta, SE;
Abstract
A method and rig for driving tunnels, galleries, shafts or the like. The rig has a movable base unit that over a support unit supports a carrying unit which in turn carries a cutting head having outwardly directed cutting elements. The method includes rotating the cutting head around a general axis of rotation and applying the cutting head against a rock surface to be worked. The carrying unit is swung into a first chosen mutual position in respect of the support unit. The support unit is rotated into a second chosen mutual position with respect to the base unit around an axis that is essentially longitudinal with respect to the base unit. An angle of operation of the cutting head is controllable.