Apparatus and methods for facilitating the connection of tubulars using a top drive
US2009110535A1
Remotely operated single joint elevator
US2008264648A1
Apparatus and methods for tubular makeup interlock
DE102006039096B3
Machine for screwing pipes together has counter-clamp attached to plate pivoted on pendular supports whose opposite ends are pivoted on swing arms connected by tube attached to frame and whose opposite ends are attached to spring retainers
DE102006037686B3
Sleeve screwing machine for screwing threaded sleeve on pipe, has sleeve screwing drive, which is connected with two parallel vertical pendulum supports in connection with swinging levers of torsion swing
