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Closure mechanism and method for spent nuclear fuel canisters

United States Patent

November 23, 2004
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 canister is provided for storing, transporting, and/or disposing of spent nuclear fuel. The canister includes a canister shell, a top shield plug disposed within the canister, and a leak-tight closure arrangement. The closure arrangement includes a shear ring which forms a containment boundary of the canister, and which is welded to the canister shell and top shield plug. An outer seal plate, forming an outer seal, is disposed above the shear ring and is welded to the shield plug and the canister.
Doman; Marvin J. (Monroeville, PA)
The United States of America as represented by the United States Department of Energy (Washington, DC)
09/ 779,894
March 31, 2000
CONTRACTUAL ORIGIN OF THE INVENTION The United States Government has rights in this invention under a contract with the Department of Energy.