Filtration and recovery system
US7964094B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2007 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Apr 22, 2030 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F43/085
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A solvent filtration and recovery system for filtration and recovery of a solvent-based liquid used in dry cleaning includes filtration tank having filter chamber with motor-driven spin filters which are selectively operated. A valve and conduit arrangement allows the liquid from dry cleaning to enter the filter chamber for filtering and flows out as filtered liquid while the spin filters are not rotating. The arrangement allows initial at least partial draining of the solvent-based liquid in the filter chamber after such filtration procedure. A recovery tank is in communication with the filtration tank through a main drain. A motor drives the spin filters during a recovery procedure, in which centrifugal force caused by the rotating spin filters for a predetermined amount of time removes by-product from the spin filters, which is drained off from the filtration tank. A reservoir stores the solvent-based liquid and receives the liquid from both the recovery tank and the filtration tank. Operation is microprocessor implemented and controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.