EP 2503092 A1 20120926 - LOCKING DEVICE FOR TUBULAR ELEMENTS
Title (en)
LOCKING DEVICE FOR TUBULAR ELEMENTS
Title (de)
VORRICHTUNG ZUR VERRIEGELUNG VON ROHRFÖRMIGEN ELEMENTEN
Title (fr)
DISPOSITIF POUR LE VERROUILLAGE D'ÉLÉMENTS TUBULAIRES
Publication
Application
Priority
IT TO20110248 A 20110322
Abstract (en)
A device for locking tubular elements to a drilling machine adapted to drive said tubular elements or casing pipes into the ground. Said drilling machine comprises a guiding mast and a rotary tool head (1) for handling drill strings which are slideable along the mast and are operated by a mechanism that causes axial movement. Said rotary head comprises a fixed part slideable along the guides of said mast or tower (2) and a rotary part connected to the first casing pipe piece, allowing rotation thereof about an axis of rotation (4).
IPC 8 full level
E21B 3/04 (2006.01); E21B 7/02 (2006.01); E21B 19/16 (2006.01)
CPC (source: EP)
E21B 3/04 (2013.01); E21B 7/021 (2013.01); E21B 19/16 (2013.01)
Citation (applicant)
- DE 19621849 A1 19970306 - BILFINGER BERGER BAU [DE]
- DE 3721448 A1 19890119 - BILFINGER BERGER BAU [DE]
- DE 102006022613 A1 20071122 - KLEMM BOHRTECHNIK ZWEIGNIEDERL [DE]
Citation (search report)
- [XAY] DE 102006022613 A1 20071122 - KLEMM BOHRTECHNIK ZWEIGNIEDERL [DE]
- [Y] DE 19621849 A1 19970306 - BILFINGER BERGER BAU [DE]
- [A] DE 10023467 C1 20010927 - BAUER SPEZIALTIEFBAU [DE]
- [A] DE 3721448 A1 19890119 - BILFINGER BERGER BAU [DE]
- [A] DE 3642387 A1 19880630 - DELMAG MASCHINENFABRIK [DE]
- [A] EP 1860275 A1 20071128 - BAUER MASCHINEN GMBH [DE]
- [A] EP 1624151 A2 20060208 - ABF BOHRTECHNIK GMBH & CO KG [DE]
- [A] US 6488094 B1 20021203 - MCDOWELL BOBBY DEWAIN [US]
- [A] US 1812721 A 19310630 - WALDO SHELDON
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2503092 A1 20120926; EP 2503092 B1 20160427; IT TO20110248 A1 20120923
DOCDB simple family (application)
EP 12159469 A 20120314; IT TO20110248 A 20110322