Corrosion resistant vents with integral filter
US7048139B1 · kind B1 · utility
3Cited by
21References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2000 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Jan 14, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2239/1258
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A vent insert with an integral carbon-to-carbon composite filter element is used to vent enclosures such as drums and convenience cans containing transuranic materials which generate hydrogen. The vent inserts do not utilize adhesive to retain filter elements therein but rather utilize a housing having a filter element support with a knife edge to form a seal and a press fitted lid. Both the housing and lid are formed of corrosion resistant HASTELLOY® C-22® alloy. The vent inserts resist HCl corrosion as well as corrosion induced by nitric acid and chlorinated solvents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.