Closure system for a spent fuel storage cask

Patent · Tue Jan 13 04:00:00 EST 1987

OSTI ID:6826002

Kessinger, B A

A closure system is described for temporarily sealing a cask base element having a mouth region with first and second steps and for permitting the cask base element to be permanently sealed, the closure system comprising: a primary cover having a bottom side with a first peripheral region configured for placement on the first step and having a top side with a second peripheral region, an upwardly open annular recess being provided in the primary cover at the secondary peripheral region; first means disposed between the first peripheral region and the first step for creating a mechanical seal to seal the cash base element at least temporarily; a generally hand-shaped element which is disposed in the annular recess and which has first and second edges and a curved cross section, the first edge being sealingly affixed to the primary cover and the second edge being sealingly affixed to the cash base element only if the cash base element is to be permanently sealed; a secondary cover having a bottom side with a peripheral region configured for placement on the second step; and second means disposed between the peripheral region of the secondary cover and the second step for creating an additional mechanical seal to seal the cast base element at least temporarily.

• Assignee: Westinghouse Electric Corp., Pittsburgh, PA
• Patent Number(s): US 4636645
• OSTI ID: 6826002
• Country of Publication: United States
• Language: English

Related Subjects

050900* -- Nuclear Fuels-- Transport
Handling
& Storage
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
CASKS
CLOSURES
CONFIGURATION
CONTAINERS
COVERINGS
SEALS
SPENT FUEL CASKS
SPENT FUEL STORAGE
STORAGE