Patent ID: 6059052
Filing Date: 2000-05-09
Classification: E21B

Abstract:
A pipe wiping apparatus comprising:(a) a housing adapted to be positioned below a rig floor and axially aligned with the locus of a drill string extending through the rig floor so that pipe raised from the well below is wiped;(b) at least a pair of similar actuators mounted in near proximity to the locus of the pipe wherein each of said actuators comprises:(1) a powered member moving between an extended and retracted position;(2) an extending arm moved thereby;(3) a wiper mounting means on said arm;(c) a pipe wiper formed of resilient material having an edge conformable to the arc of curvature of the side wall of the pipe so that the pipe is wiped thereby; and(d) wherein said actuator and the wiper mounting means position the pipe wiper at an angle so that external upsets in the pipe deflect said pipe wiper.