Drycleaning residue aftercooker
US4898601A · kind A · utility
8Cited by
8References
8Claims
0Family size
Inventor
Key dates
| Filing date | Jun 1, 1989 |
| Grant date | Feb 6, 1990 |
| Priority date | — |
| Expiry date | Jun 1, 2009 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F43/081
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An aftercooker device for reducing the solvent content of drycleaning solid residues is disclosed as is its application in dry cleaning processes. The aftercooker is adapted for use with fouled disposable filters as well as with the solids which result from the flashing of soil-containing filter backwash. The aftercooker and its use are characterized by the use of ambient to moderately elevated temperatures and low velocity flows of air to remove solvent from residues and to the use of a vent scrubber to recover the solvent so removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.