초록 ▼

Plutonium powders are stored in three embodiments of stainless steel canisters with stainless steel lids. The stainless steel canisters are extruded and have no interior welds. Each canister has a stainless steel lid with a vent having an integral HEPA filter. In order to secure the lids on the cani

Plutonium powders are stored in three embodiments of stainless steel canisters with stainless steel lids. The stainless steel canisters are extruded and have no interior welds. Each canister has a stainless steel lid with a vent having an integral HEPA filter. In order to secure the lids on the canister, collars with annular internal notches and external threads are disposed between the bodies of the canisters and the lids. The lids have internal threads so that the lids can be tightly screwed onto the collars. O-ring seals are disposed between the lids and collars.

대표청구항 ▼

[ What is claimed is:] [1.] A canister for containing hazardous material, the canister comprising:a seamless canister body of a first thickness, the canister body having a mouth defined by a circular edge of a selected thickness;a collar having second thickness greater than the first thickness, the

[ What is claimed is:] [1.] A canister for containing hazardous material, the canister comprising:a seamless canister body of a first thickness, the canister body having a mouth defined by a circular edge of a selected thickness;a collar having second thickness greater than the first thickness, the collar having an upper surface and a lower surface, the lower surface having an internally facing notch for receiving one circular edge defining the notch of the canister body, the collar further having an external helical thread formed therein;a lid having a plate portion and a depending rim portion, the depending rim portion having internal threads for threadably engaging the external threads of the collar for retaining the lid on the canister body;an annular gasket is disposed between the lid and upper surface of the collar for sealing the container adjacent to the circular edge thereof; anda filter assembly is integral with the lid to form a vent therethrough.