JOSEPH DAVIS CAMPBELL
Medical Practice in Pittsburgh, PA
License number
Pennsylvania MD042122L
Category
Medicine
Type
Medical Physician and Surgeon
Address
Address
Pittsburgh, PA 15235
Professional information
Nuclear Fuel Elements Sealed By Electric Welding
US Patent:
4003788, Jan 18, 1977
Filed:
Jun 27, 1974
Appl. No.:
5/483601
Inventors:
Eugene S. Boyko - Monroeville PA
Joseph Campbell - Pittsburgh PA
Roger J. Wiggins - Allison Park PA
Joseph Campbell - Pittsburgh PA
Roger J. Wiggins - Allison Park PA
Assignee:
Westinghouse Electric Corporation - Pittsburgh PA
International Classification:
G21C 310
US Classification:
176 79
Abstract:
A nuclear-fuel assembly has an end plug and is sealed except for a small diameter axial bore in the plug. A welding electrode of the same material as the plug has an end ground to a point. The tapered end is then inserted into the bore. Before the bore is sealed the assembly is filled with an inert-gas at high pressure. An electric welding current is then directed through the electrode and the plug to seal the bore.