EP 3480419 B1 20200408 - AUGER DRILL ASSEMBLY AND METHOD FOR FORMING AN AUGER DRILL ASSEMBLY
Title (en)
AUGER DRILL ASSEMBLY AND METHOD FOR FORMING AN AUGER DRILL ASSEMBLY
Title (de)
SCHNECKENBOHRERANORDNUNG UND VERFAHREN ZUM BILDEN EINER SCHNECKENBOHRERANORDNUNG
Title (fr)
DISPOSITIF FORMANT TARIÈRE HÉLICOÏDALE ET PROCÉDÉ DE FORMATION D'UN DISPOSITIF FORMANT TARIÈRE HÉLICOÏDALE
Publication
Application
Priority
EP 17199636 A 20171102
Abstract (en)
[origin: WO2019086164A1] The invention relates to an auger arrangement and a method for forming an auger arrangement having a first drill part and a second drill part (12, 14) which are tubular or rod-shaped and wherein at least one drill part is provided with a screw winding (16) on its outer side, wherein the drill parts have connecting portions (20, 40) which match one another on at least one of their end regions, a first connecting portion (20) is designed as a sleeve-like female part having keyway elements and a second connection portion (40) is designed as a mandrel-like male part having keyway elements, and the male part and female part are axially inserted into one another in order to form a detachable connection for conjoint rotation.
IPC 8 full level
E21B 17/046 (2006.01); E21B 17/22 (2006.01); F16L 37/14 (2006.01)
CPC (source: EP US)
E21B 10/44 (2013.01 - EP); E21B 17/046 (2013.01 - EP US); E21B 17/0465 (2020.05 - US); E21B 17/22 (2013.01 - EP US); E02D 5/22 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3480419 A1 20190508; EP 3480419 B1 20200408; CN 111247306 A 20200605; US 11208852 B2 20211228; US 2020318441 A1 20201008; WO 2019086164 A1 20190509
DOCDB simple family (application)
EP 17199636 A 20171102; CN 201880069686 A 20180920; EP 2018075460 W 20180920; US 201816758322 A 20180920