Dual mode carpet cleaning apparatus utilizing an extraction device and a soil transfer cleaning medium
US6735812B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2003 |
| Grant date | May 18, 2004 |
| Priority date | — |
| Expiry date | Feb 21, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/4091
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An apparatus performing multiple different cleaning operations for cleaning fabrics, floor coverings, and bare floor surfaces is disclosed. A device according to the present invention selectively utilizes soil transfer and solution extraction technology. In one embodiment, an apparatus is disclosed having a cleaning implement in selective wiping contact with a surface to be cleaned, a cleaning solution dispenser which selectively wets with a cleaning solution a portion of the cleaning implement or a portion of the surface or both, a first selectively controllable vacuum extractor tool which when operating removes some of the dispensed cleaning solution and soil from the cleaning implement, and a second selectively controllable vacuum extractor tool which when operating removes soil and some of the cleaning solution directly from the surface intended to be cleaned. A method of use of such an apparatus is also disclosed. Portable and vehicle-based devices may be utilized to practice the different methods of cleaning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.