EP 2744969 B1 20161005 - DEVICE FOR ACTIVATION OF GRIPPING JAWS IN CONTINUOUSLY ROTATING TORQUE TONGS FOR USE UNDER PULLING AND OPENING OF THREADED CONNECTIONS
Title (en)
DEVICE FOR ACTIVATION OF GRIPPING JAWS IN CONTINUOUSLY ROTATING TORQUE TONGS FOR USE UNDER PULLING AND OPENING OF THREADED CONNECTIONS
Title (de)
VORRICHTUNG ZUR AKTIVIERUNG VON GREIFBACKEN IN KONTINUIERLICH UMLAUFENDEN DREHMOMENTZANGEN ZUR VERWENDUNG WÄHREND EINES ZUGVORGANGS UND WÄHREND DER ÖFFNUNG VON SCHRAUBVERBINDUNGEN
Title (fr)
DISPOSITIF POUR L'ACTIONNEMENT DE MÂCHOIRES DE SAISIE DANS DES PINCES DE COUPLE À ROTATION CONTINUE POUR L'UTILISATION DANS LA TRACTION ET L'OUVERTURE DE LIAISONS FILETÉES
Publication
Application
Priority
- NO 20111144 A 20110809
- NO 2012050144 W 20120807
Abstract (en)
[origin: WO2013022352A1] Continuously rotating power tong for making the threaded connections (2) of pipes, primarily used for drilling for oil and gas in the petroleum industry. The power tong comprising radially movable jaw sections (22), connected to a driving disc (12), where hydraulic pumps (16, 17) are mounted, the pumps (16, 17) being driven by an endless chain (15) through gears (35) and the chain (15) being driven by motors (18, 19) through gears (27, 28).
IPC 8 full level
E21B 19/16 (2006.01)
CPC (source: EP US)
E21B 19/164 (2013.01 - EP 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)
WO 2013022352 A1 20130214; WO 2013022352 A8 20130613; EP 2744969 A1 20140625; EP 2744969 A4 20151230; EP 2744969 B1 20161005; NO 20111144 A1 20130220; NO 333115 B1 20130304; US 2014305265 A1 20141016
DOCDB simple family (application)
NO 2012050144 W 20120807; EP 12822030 A 20120807; NO 20111144 A 20110809; US 201214237013 A 20120807