EP 0352215 B1 19940330 - Drilling tool.
Title (en)
Drilling tool.
Title (de)
Bohrwerkzeug.
Title (fr)
Outil de forage.
Publication
Application
Priority
DE 3824170 A 19880716
Abstract (en)
[origin: EP0352215A2] A drilling tool is proposed which is suitable in particular for cleaning drilling dust from a drill hole during rock drilling work. For this purpose, the spiral shank has brush elements (6, 17) which are arranged in the groove root of a conventional drilling tool or form spiral conveying helixes themselves. <IMAGE>
IPC 1-7
IPC 8 full level
B23Q 11/00 (2006.01); B28B 1/14 (2006.01); B28D 1/14 (2006.01); E21B 10/44 (2006.01); E21B 17/22 (2006.01); E21B 37/02 (2006.01)
CPC (source: EP)
B28D 1/14 (2013.01); E21B 10/445 (2013.01); E21B 17/22 (2013.01); E21B 37/02 (2013.01)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0352215 A2 19900124; EP 0352215 A3 19901205; EP 0352215 B1 19940330; DE 58907334 D1 19940505
DOCDB simple family (application)
EP 89710056 A 19890610; DE 58907334 T 19890610