E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 19/16 (2006.01)
Patent
CA 2393933
A dividable spinner and torque tong (1) for spinning in and tightening of pipe joints (22 and 23) is disclosed. The tong (1) includes an outer stationnary housing (5) having a drive gear (9) connected to a driving motor, an inner rotatable housing (2) having a driven ring (3) in mesh with the drive gear (9). The tong (1) has a number of elements (4) for engagement with a pipe (20). The inner housing (2) has an internal mechanical or hydraulic system (8) that is able to activate the engagement elements (4). Each engagement element (4) is a resilient, incompressible body that is able to undergo alteration in configuration, and each engagement element (4) has a friction forming surface (4F) for direct engagement with the pipe (20).
L'invention porte sur une clé dynamométrique séparable destinée à visser et serrer des joints (22 et 23) de tubes. La clé comprend un corps (5) fixe, externe, pourvu d'un engrenage d'entraînement (9) raccordé à un moteur d'entraînement, un corps (2) rotatif interne pourvu d'une bague (3) d'entraînement en prise avec l'engrenage (9). La clé (1) comporte un nombre d'éléments (4) venant en prise avec un tube (20). Le corps (2) interne possède un système (8) interne mécanique ou hydraulique capable d'actionner les éléments (4) venant en prise. Chaque élément (4) est un corps résilient, compressible, pouvant subir une modification de configuration et comporte une surface (4F) de friction venant en prise directe avec le tube (20).
Mccarthy Tetrault Llp
Pevatec As
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