EP 2339107 B1 20190123 - Drilling device with telescopic auger, adapter piece and drilling method for drilling
Title (en)
Drilling device with telescopic auger, adapter piece and drilling method for drilling
Title (de)
Bohrgerät mit Teleskopbohrschnecke, Adapterstück und Bohrverfahren zur Durchführung von Bohrungen
Title (fr)
Appareil de forage doté d'une vis de forage télescopique, pièce d'adaptateur et procédé de forage pour la réalisation de forages
Publication
Application
Priority
US 28886809 P 20091222
Abstract (en)
[origin: EP2339107A2] The device has a drilling drive (4) attached to a carrier device in a movable manner, and a drilling worm gear rotatable around a longitudinal axis by the drilling drive. Energy transmission elements are provided for displacement of the worm gear along the longitudinal axis and extended through the drilling drive. A hydraulic-lift drive (6) is arranged in an inner area of a shaft for torque transmission. The shaft is provided with an inner tube (7a) and an outer tube (7b), where the elements are designed as hydraulic hoses (10a, 10b) filled with hydraulic oil.
IPC 8 full level
E21B 7/00 (2006.01); E21B 7/02 (2006.01); E21B 7/20 (2006.01); E21B 17/07 (2006.01)
CPC (source: EP)
E21B 7/005 (2013.01); E21B 7/02 (2013.01); E21B 7/20 (2013.01); E21B 17/07 (2013.01)
Citation (examination)
DE 3521148 A1 19861218 - ANLAGENTECH BAUMASCH IND [DE]
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 2339107 A2 20110629; EP 2339107 A3 20110817; EP 2339107 B1 20190123
DOCDB simple family (application)
EP 10015951 A 20101222