Self-cleaning system and method for extraction cleaners
US11439283B2 · kind B2 · utility
8Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 2018 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Mar 6, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/4083
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Systems and method for self-cleaning extraction cleaners, including upright or robot extraction cleaner are provided. In one system, a tray can be provided for docking the extraction cleaner during the self-cleaning mode. The tray may include one or more sprayers for spraying a cleaning fluid toward an agitator of the extraction cleaner. In another system, a nozzle flushing manifold mounted on the nozzle assembly of the extraction cleaner includes a plurality of distributor outlets configured to spray cleaning fluid into the suction pathway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.