EP 0524223 B1 19940720 - INJECTION DRILLING ANCHOR.
Title (en)
INJECTION DRILLING ANCHOR.
Title (de)
INJEKTIONSBOHRANKER.
Title (fr)
SYSTEME D'ANCRAGE POUR PUITS D'INJECTION.
Publication
Application
Priority
- DE 9004177 U 19900411
- EP 9100692 W 19910410
Abstract (en)
[origin: WO9115657A1] Composite anchor pipes for stabilising headings and spaces by the injection of e.g. synthetic resin, especially in mining and tunnelling, consist of at least two sections which can be secured together by sleeves and are fitted with a drilling cone and rinsing and injection apertures at the deepest end of the drilling. The anchor pipes have a drilling closure and a releasable connector at the end projecting from the drilling. For the use of such anchor pipes simultaneously as drilling rods and anchors, the section (3) in the form of a drill, which is fitted with a connector designed as a drill adapter (12) is interchangeable with a section (13) designed as an anchor pipe (1), said section (13) being fitted with a bore-hole closure (14) and a non-return valve (19).
IPC 1-7
IPC 8 full level
E02D 5/76 (2006.01); E21D 9/00 (2006.01); E21D 20/02 (2006.01); E21D 21/00 (2006.01)
CPC (source: EP)
E02D 5/76 (2013.01); E21D 9/001 (2013.01); E21D 21/0046 (2013.01); E21D 21/0053 (2016.01); E21D 21/0073 (2016.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DE 9004177 U1 19900628; DE 59102272 D1 19940825; EP 0524223 A1 19930127; EP 0524223 B1 19940720; PL 168194 B1 19960131; WO 9115657 A1 19911017
DOCDB simple family (application)
DE 9004177 U 19900411; DE 59102272 T 19910410; EP 9100692 W 19910410; EP 91907426 A 19910410; PL 29632791 A 19910410