Electric Power Research Institute Incorporated

Dei Enterprises

Edwin Stephen Hunt

Robert Douglas Varrin, Jr

Paul L Frattini

An apparatus for cleaning an irradiated nuclear fuel assembly includes a housing adapted to engage a nuclear fuel assembly. A set of ultrasonic transducers is positioned on the housing to supply radially emanating omnidirectional ultrasonic energy to remove deposits from the nuclear fuel assembly.

Apparatus and method for ultrasonically cleaning irradiated nuclear fuel assemblies

A low-wear articulated buoy joint with first and second bushings. Each bushing has an inner shaft member, an elastomeric material bonded to an outside surface of the inner shaft member, and an outer, hollow cylindrical member into which the elastomeric material and inner shaft are press-fit. When the inner shaft of either bushing is rotated with respect to the outer member, the elastomeric material exerts a restorative torque on the shaft. The outer member of the first bushing is fixedly attached to the outer member of the second bushing. The first and second bushings are disposed at an angle of 90.degree. with respect to one another. The shaft member of the first bushing is fixed to a sinker, and the shaft of the second bushing is fixed to a buoy column.

Growing community of inventors

Arlington, VA, United States of America

Edwin Stephen Hunt