Method and apparatus for reclaiming drycleaning fluid
US4444625A · kind A · utility
26Cited by
11References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 1983 |
| Grant date | Apr 24, 1984 |
| Priority date | — |
| Expiry date | Apr 18, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D5/0018
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Drycleaning fluid is recovered from spent drycleaning fluid filter elements by passing steam through the elements to form a steam/drycleaning-fluid vapor mixture. The mixture is condensed into liquid state and the two constitutents are separated. The apparatus includes a condensing chamber and a separating chamber with a novel valve for ensuring that drycleaning-fluid vapors do not escape into the work area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.