Patent · US Active

Method and device for working rock

US9004609B2 · kind B2 · utility

1Cited by

13References

7Claims

0Family size

Assignee

ATLAS COPCO CRAELIUS AB · SE

Inventors

Sverker Hartwig · Bissenkamp, SE
Gunnar Nord · Sollentuna, SE
Federico Scolari · Milano, IT
Jan F. Wallenius · Täby, SE
Morgan Norling · Västerås, SE
Kaj Emanuelsson · Wilrijk, BE

Key dates

Filing date	Oct 29, 2009
Grant date	Apr 14, 2015
Priority date	—
Expiry date	Nov 5, 2029

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21D9/12
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A method for driving tunnels, galleries, shafts or the like with a driving device (1; 2; 15), including: that a cutting head (4) 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 (13), are formed on cutting rolls (7) are brought to roll against the rock side during pressing against the rock and rotation of the cutting head (4), 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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.