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:
Aug. 22, 2000
Filed:
May. 12, 1999
Josef Mocivnik, Fohnsdorf, AT;
Karl Bohm, Ansfelden, AT;
Techmo Entwicklungs-und Vertriebs GmbH, Fohndorf, AT;
ALWAG' Tunnelausbau Gesellschaft m.b.H., Pasching, AT;
Abstract
In a process for drilling, in particular rotary percussion or percussion drilling, and lining holes in the ground or rocks, a hole is percussion and/or rotation drilled by a cutter mounted on boring rods and a lining is formed by a jacket tube. During drilling, at least one jacket tube coupled to the cutter is drawn in the axial direction by the cutter into the bore hole and once drilling is finished, the cutter is at least partially removed from the jacket tube together with the boring rods. In a device for drilling, in particular percussion or rotary percussion drilling, and lining holes in the ground or rocks, a cutter mounted on boring rods drills a bore hole by percussion and/or rotary drilling. The cutter is divided in the radial direction. At least one jacket tube which surrounds the boring rods is located at the end of the cutter away from the drilling surface, around the outer circumference of the cutter, and is form-fittingly joined to the cutter by at least one coupling element so as to be drawn in the longitudinal direction of the bore hole.