Global Patent Index - EP 0928360 B1

EP 0928360 B1 2001-04-25 - DRILL SHANK FOR A DRILL DRIVE

Title (en)

DRILL SHANK FOR A DRILL DRIVE

Title (de)

EINSTECKENDE FÜR EINEN BOHRANTRIEB

Title (fr)

TIGE DE FORET DESTINEE A UN ELEMENT D'ENTRAINEMENT POUR FORAGE

Publication

EP 0928360 B1 (DE)

Application

EP 97942017 A

Priority

  • DE 19638464 A
  • EP 9704971 W

Abstract (en)

[origin: DE19638464A1] A drill shank has at one end a coupling section (3) to a drill anchoring rod and is provided with an axial bore (12) which extends into a section and continues in a radial bore (11) for introducing a fluid medium into the bore anchoring rod in connection with a fixed adapter part which surrounds the drill shank in the area of the section (9). The fluid medium can be a rinsing medium such as water or air. It may also be a hardenable medium such as a mortar suspension. The drill shank is provided with another duct separated from the bore (12) for guiding a cooling medium. The thus designed drill shank links a drill anchoring rod to a drill drive and also serves to introduce into the drill anchoring rod all media required to drill a bore hole and to set an anchor, depending on the anchoring setting process.

IPC 1-7 (main, further and additional classification)

E21B 17/02; E21B 21/02; E21D 20/02

IPC 8 full level (invention and additional information)

E21D 20/00 (2006.01); B23B 47/00 (2006.01); B28D 1/14 (2006.01); E21B 17/02 (2006.01); E21B 17/03 (2006.01); E21B 21/02 (2006.01); E21D 20/02 (2006.01)

CPC (invention and additional information)

E21B 17/03 (2013.01); E21B 21/02 (2013.01); E21D 20/028 (2013.01)

Designated contracting state (EPC)

AT CH DE ES FI FR GB GR IT LI

EPO simple patent family

DE 19638464 A1 19980326; AT 200815 T 20010515; CN 1091829 C 20021002; CN 1231017 A 19991006; EP 0928360 A1 19990714; EP 0928360 B1 20010425; JP 2001505632 A 20010424; TR 9900621 T2 19990621; WO 9812412 A1 19980326

INPADOC legal status


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