Water-based cleaning system
US4333485A · kind A · utility
20Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1980 |
| Grant date | Jun 8, 1982 |
| Priority date | — |
| Expiry date | Jul 1, 2000 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F19/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The invention relates to a cleaning system in which, during the cleaning procedure, the articles have to pass a plurality of treatment stations in a direction which is opposite to that in which the flow of the cleaning liquid is established. From the first and most contaminated of the treatment stations, the cleaning liquid is removed and supplied to an ultrafilter. At least part of the outflow from this filter is returned to one of the latest or to the last treatment station. Ultrasonic energy is used to increase the efficiency of at least one of the stations. Ambient heat and vapor loss are recaptured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.