Process for the remote coating of the surfaces of a cavity, as well as the application of this process
US4504524A · kind A · utility
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4References
4Claims
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Assignee
Inventors
Key dates
| Filing date | Dec 7, 1982 |
| Grant date | Mar 12, 1985 |
| Priority date | — |
| Expiry date | Dec 7, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D3/0493
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for remotely fixing toxic dust, such as plutonium oxide, on the surfaces of a sealed cavity defining an airlock between two enclosures containing toxic material which are sealingly coupled to each other, so as to avoid contamination of the atmosphere upon uncoupling of the enclosures. The cavity is filled through an inlet zone with a solution of silicone grease in a solvent, such as freon, which is capable of wetting the surfaces of the cavity. The solvent is vaporized and evacuated from the cavity such that the silicone grease is deposited on the surfaces of the cavity to fix the toxic dust thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.