E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 19/16 (2006.01)
Patent
CA 2726916
A gripping jaw device (6) for a power tong (1), wherein a plurality of gripping jaws (6) are displaceable and provided with a gripping surface that comprises relatively sharp portions (12), the power tong (1) being designed to be able to grip about a pipe (22), and wherein the gripping jaw (6) is provided with a deflector (14).
La présente invention concerne un dispositif à mâchoires de serrage de tiges (6) pour une clé de vissage automatique (1), dans laquelle une pluralité de mâchoires de serrage (6) sont mobiles et dotées dune surface de préhension comportant des parties relativement acérées (12), la clé de vissage automatique (1) étant conçue pour être capable dêtre serrée autour dune conduite (22), et la mâchoire de serrage (6) étant munie dun déflecteur (14).
Aker Mh As
Miltons Ip/p.i.
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