MY122203A - Device for drilling or draining holes in soil or rock - Google Patents

Device for drilling or draining holes in soil or rock

Info

Publication number
MY122203A
MY122203A MYPI9904069A MY122203A MY 122203 A MY122203 A MY 122203A MY PI9904069 A MYPI9904069 A MY PI9904069A MY 122203 A MY122203 A MY 122203A
Authority
MY
Malaysia
Prior art keywords
drilling
jacket tube
drill bit
drill
rod assembly
Prior art date
Application number
Inventor
Josef Mocivnik
Karl Bohm
Original Assignee
Alwag Tunnelausbau Gmbh
Alwag Tunnelausbau Gesellsschaft M B H
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alwag Tunnelausbau Gmbh, Alwag Tunnelausbau Gesellsschaft M B H filed Critical Alwag Tunnelausbau Gmbh
Priority to MYPI9904069 priority Critical patent/MY122203A/en
Publication of MY122203A publication Critical patent/MY122203A/en

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

IN A DEVICE (1) FOR DRILLING, IN PARTICULAR IMPACT DRILLING OR ROTARY PERCUSSION DRILLING, AND DRAINING HOLES IN SOIL OR ROCK MATERIAL, WHEREIN A DRILL BIT (2, 3) MOUNTED ON A DRILL ROD ASSEMBLY (4) FORMS A DRILL HOLE AND A JACKET TUBE (6) IS COUPLED WITH THE DRILL ROD ASSEMBLY (4) OR THE DRILL BIT (2, 3), WHEREIN THE JACKET TUBE (6) IN THE REGION FOLLOWING UPON THE DRILL BIT (2, 3) IS FORMED WITH AT LEAST ONE PASSAGE OPENING (10) THAT OPENS INTO AN ANNULAR SPACE FORMED BETWEEN THE DRILL ROD ASSEMBLY AND THE JACKET TUBE, IT IS PROVIDED THAT THE JACKET TUBE (6), IN THE END REGION FOLLOWING UPON THE DRILL BIT (2, 3), IS SURROUNDED BY AT LEAST ONE FILTERING TUBE (7) FORMED WITH A PLURALITY OF PASSAGE OPENINGS OR SLITS (8) ARRANGED DISTRIBUTEDLY ABOUT ITS PERIPHERY, PARTICULARLY IN A UNIFORM MANNER, WHEREBY ACCORDINGLY SAFE AND RELIABLE DRAINING DURING THE DRILLING PROCEDURE IS FEASIBLE BY SIMPLE MEASURES.
MYPI9904069 1999-09-20 1999-09-20 Device for drilling or draining holes in soil or rock MY122203A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MYPI9904069 MY122203A (en) 1999-09-20 1999-09-20 Device for drilling or draining holes in soil or rock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MYPI9904069 MY122203A (en) 1999-09-20 1999-09-20 Device for drilling or draining holes in soil or rock

Publications (1)

Publication Number Publication Date
MY122203A true MY122203A (en) 2006-03-31

Family

ID=47257267

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI9904069 MY122203A (en) 1999-09-20 1999-09-20 Device for drilling or draining holes in soil or rock

Country Status (1)

Country Link
MY (1) MY122203A (en)

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