Patent ID: 9443625
Filing Date: 2016-09-13
CPC Classification: B65D,G21F

Claim Text:
1. A method of storing high level radioactive waste comprising: (a) providing a body portion comprising a floor, an open top end, an inner shell extending upward from the floor and forming a cavity, an outer shell extending upward from the floor and surrounding the inner shell so as to form a space therebetween, and at least one opening in the inner shell that forms a passageway from a bottom of the space into a bottom of the cavity; (b) placing a canister containing high level radioactive waste into the cavity, the canister passing through the open top end from a location external to the body portion; and (c) positioning a lid having at least one outlet vent atop the inner and outer shells so as to enclose the open top end of the body portion and the at least one outlet vent forms a passageway from a top of the cavity to the ambient atmosphere; and wherein at least one inlet vent forms a passageway from an ambient atmosphere to a top of the space to facilitate natural convective cooling of the canister containing high level radioactive waste.