Self cleaning activated carbon filter system for dry cleaning machine
US5520028A · kind A · utility
Inventors
Key dates
| Filing date | Nov 16, 1994 |
| Grant date | May 28, 1996 |
| Priority date | — |
| Expiry date | Nov 16, 2014 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F43/085
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An activated carbon filter system for a clothes cleaning apparatus of the type using cleaning fluid for cleaning dirty clothes. The system comprises a receptacle unit. A structure is for fluidly connecting the receptacle unit to the clothes cleaning apparatus, so as to allow the cleaning fluid to travel therethrough. A prefilter is within the receptacle unit for separating large contaminant dirt particles from the cleaning fluid during a first state washing cycle. A filter assembly is within the receptacle unit for separating small contaminant dirt particles from the cleaning fluid after the cleaning fluid passes through the prefilter during a second state washing cycle. When placed into a drain cycle, the large contaminant dirt particles on the prefilter and the dirty cleaning fluid can be flushed out from the receptacle unit into a drain tank, allowing the filter assembly to be removed from the receptacle unit, placed into the drain tank to be cleaned out by boiling and then replaced back into the receptacle unit to be used again.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.