Liquid carbon dioxide cleaning system and method
US6129451A · kind A · utility
8Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 1998 |
| Grant date | Oct 10, 2000 |
| Priority date | — |
| Expiry date | Jan 12, 2018 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06L1/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention discloses an apparatus and method for mixing liquid carbon dioxide with an additive or surfactant and then forcibly dispersing the mixture into a cleaning chamber full of liquid carbon dioxide. Valving controls the process of admitting a liquid additive into a two liter reservoir and then admitting liquid carbon dioxide into the two liter reservoir under pressure thus filling the reservoir. The mixture is then admitted to the cleaning chamber under pressure. A nozzle, a plurality of nozzles, or a pipe having apertures therein is used to disperse the mixture inside the cleaning chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.