WILLIAM H PHILLIPS
Vehicle Board in Pittsburgh, PA

4182152, Jan 8, 1980

Sep 8, 1977

5/831459

Ronald E. Vaill - Penn Township, Allegheny County PA
William D. Phillips - Pittsburgh PA

Westinghouse Electric Corporation - Pittsburgh PA

B21D 3904

72393

An improved grid sleeve bulge tool designed for securing control rod guide tubes to sleeves brazed in a fuel assembly grid. The tool includes a cylinder having an outer diameter less than the internal diameter of the control rod guide tubes. The walls of the cylinder are cut in an axial direction along its length to provide several flexible tines or ligaments. The end of each alternate tine is equipped with a semispherical projection which extends radially outwardly from the tine surface. A ram or plunger of generally cylindrical configuration and about the same length as the cylinder is designed to fit in and move axially of the cylinder and thereby force the tined projections outwardly when the ram is pulled into the cylinder. As the projections thereon outwardly into contact with the sleeve, they plastically deform both the sleeve and the control rod guide tube simultaneously to thereby form four bulges which extend outwardly from the sleeve surface and beyond the outer periphery of the grid peripheral strap.

4229259, Oct 21, 1980

Oct 10, 1978

5/950206

Ronald E. Vaill - Penn Township, Westmoreland County PA
William D. Phillips - Pittsburgh PA

Westinghouse Electric Corp. - Pittsburgh PA

G21C 2108

176 78

An improved grid sleeve bulge tool designed for securing control rod guide tubes to sleeves brazed in a fuel assembly grid. The tool includes a cylinder having an outer diameter less than the internal diameter of the control rod guide tubes. The walls of the cylinder are cut in an axial direction along its length to provide several flexible tines or ligaments. These tines are similar to a fork except they are spaced in a circumferential direction. The end of each alternate tine is equipped with a semispherical projection which extends radially outwardly from the tine surface. A ram or plunger of generally cylindrical configuration and about the same length as the cylinder is designed to fit in and move axially of the cylinder and thereby force the tined projections outwardly when the ram is pulled into the cylinder. The ram surface includes axially extending grooves and plane surfaces which are complimentary to the inner surfaces formed on the tines on the cylinder. As the cylinder is inserted into a control rod guide tube, and the projections on the cylinder placed in a position just below or above a grid strap, the ram is pulled into the cylinder, thus moving the tines and the projections thereon outwardly into contact with the sleeve, to plastically deform both the sleeve and the control rod guide tube, and thereby form four bulges which extend outwardly from the sleeve surface and beyond the outer periphery of the grid peripheral strap.