Paul J. Boone

TL;DR: A component maintenance system having a network linked to a data acquisition system, data analysis system, a historical file of component design and inspection information, and a diagnostic system having the capability to perform structural analysis of discontinuities identified by the data acquisition systems is discussed in this paper.

TL;DR: In this article, an improved robotic arm system for servicing the tubesheet located within the channel head of a nuclear steam generator is provided, which includes a robotic arm whose shoulder and elbow joints are rotatable only in the plane parallel to the tube sheet, in order to eliminate the imposition of cantileverly-induced torques on the electric motors driving these joints, as well as to minimize the possibility of mechanical interference between the arm and the walls of the tube head.

TL;DR: In this paper, a method of removing a metal plug from a conduit includes the steps of simultaneously applying a static pull force and repetitive impulses to the plug, and an arrangement connecting an air impact tool to the second hydraulic actuator for applying, simultaneously with the static force, high-frequency impulses to a plug entirely through solid members.

TL;DR: In this paper, an improved robotic arm system for servicing the tubesheet located within the channel head of a nuclear steam generator is presented, where the shoulder and elbow joints of the arm are rotatable only in the plane parallel to the tube sheet to eliminate the imposition of cantileverly-induced torques on the electric motors driving these joints.

TL;DR: A tool for removing a metal plug from a tube with repeated pulling impulses includes a pneumatic cylinder defining an interior, cylindrical chamber. as discussed by the authors The tool is also adapted for disengaging an expander member engaged in a tapered plug shell with a mandrel that includes a push-rod having an end extending into the top of the chamber proximate the plug.