HEPA filtered storage canisters
US5911332A · kind A · utility
11Cited by
17References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1997 |
| Grant date | Jun 15, 1999 |
| Priority date | — |
| Expiry date | Dec 10, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D85/84
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.