E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 19/08 (2006.01) E21B 19/22 (2006.01)
Patent
CA 2236234
A coiled tubing injector has a transmission with reduction gear trains having two rotary power outputs for driving each of the injector's two chains, and one or more rotary power inputs located on the same side of the transmission as the rotary drive outputs.
Goode John E.
Hydra Rig Inc.
Kirby Eades Gale Baker
Varco I/p Inc.
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