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:
Dec. 15, 2015
Filed:
Aug. 30, 2012
Sverker Hartwig, Täby, SE;
Kaj Emanuelsson, Viken, SE;
Jerk Back, Nacka, SE;
Atlas Copco Rock Drills AB, Orebro, SE;
Abstract
A device () for driving tunnels, galleries or the like including a cutting head (), wherein an excavating direction of the cutting head () being essentially at a right angle to said rotation axis (R), a base unit () with stabilizing units (S, S, S, S) for applying and fixing against rock surfaces, a support unit () for the cutting head (), a joint device () for pivotal connection of the support unit to the base unit, forcing means () arranged between the base unit and the support unit for swinging the cutting head. The joint device () is arranged for vertical as well as for horizontal swinging of the support unit () in respect of the base unit (), wherein the support unit () is vertically as well as horizontally swingable by means of a pair of upper fluid cylinders () and a pair of lower fluid cylinders () comprising said forcing means.