Invention Application
- Patent Title: Method and device for boring holes in soil or rock
- Patent Title (中): 在土壤或岩石中钻孔的方法和装置
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Application No.: US11395291Application Date: 2006-04-03
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Publication No.: US20060175093A1Publication Date: 2006-08-10
- Inventor: Josef Mocivnik , Rene Egger-Mocivnik
- Applicant: Josef Mocivnik , Rene Egger-Mocivnik
- Priority: AUA1559/2003 20031001
- Main IPC: E21B4/00
- IPC: E21B4/00 ; E21B17/07

Abstract:
In a method and device for boring or drilling, in particular percussion drilling or rotary percussion drilling, holes in soil or rock, wherein a borehole is formed by a percussive and/or rotary movement carried out by a drill bit (2) mounted on a drill rod assembly (3) and a jacket tube (6) coupled with the drill bit (2) is introduced into the borehole, it is provided that the jacket tube (6) is received in a socket (5) provided on the end facing away from the drill bit working surface, of an envelope tube (4) coupled with the drill bit (2), and that the jacket tube (6) is subjected to a percussive and/or compressive stress on its end facing away from the drill bit, whereby directionally precise boring or drilling is rendered feasible.
Public/Granted literature
- US07195081B2 Method and device for boring holes in soil or rock Public/Granted day:2007-03-27
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