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Pump station for radioactive waste water

United States Patent

6,649,055
November 18, 2003
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
A pump station for transferring radioactive particle containing waste water, includes: (a.) an enclosed sump having a vertically elongated right frusto conical wall surface and a bottom surface and (b.) a submersible volute centrifugal pump having a horizontally rotating impeller and a volute exterior surface. The sump interior surface, the bottom surface and the volute exterior surface are made of stainless steel having a 30 Ra or finer surface finish. A 15 Ra finish has been found to be most cost effective. The pump station is used for transferring waste water, without accumulation of radioactive fines.
Whitton; John P. (Ballston Lake, NY), Klos; Dean M. (Venetia, PA), Carrara; Danny T. (Saratoga Springs, NY), Minno; John J. (Ballston Spa, NY)
The United States of America as represented by the United States Department of Energy (Washington, DC)
10/ 139,288
May 7, 2002
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT The invention was conceived and made in the course of or under a contract with the U.S. Department of Energy.