Carbon dioxide snow generator with purging means
US4372130A · kind A · utility
5Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1981 |
| Grant date | Feb 8, 1983 |
| Priority date | — |
| Expiry date | Sep 17, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B32/55
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A carbon dioxide snow generator is disclosed which has a purge conduit for controllably delivering a blast of pressurized fluid at the inner surfaces of the generator to dislodge and remove any residual or clogging deposits of carbon dioxide snow. A vapor loop for such a generator is also disclosed which provides an initial blast of relatively warm carbon dioxide gas at startup which gas entrains and removes any residual liquid before it can freeze in the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.