ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,234,710, issued on Feb. 25, was assigned to EVOLUTION OIL TOOLS INC. (Calgary, Canada).
"Drive assembly for a well site" was invented by Vern Hult (Calgary, Canada), Benjamin J Gagnon (Calgary, Canada), Emery Stoesser (Calgary, Canada) and Bernard Lumori (Calgary, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drive assembly for a tubing rotator comprising: a linear force to motive force convertor including an input for receiving a linear motion drive force and an output for outputting a rotary motion drive force, an arm for receiving a linear drive force and inputting it to the linear force to motive force convertor and an actuator couplable t...