Dry vacuum cleaner with spot cleaning
US8631538B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 15, 2010 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Aug 20, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/408
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A vacuum cleaner has a cleaning powder distribution system and an actuator connected to the powder distribution system for selectively dispensing powder from the powder distribution system to soiled spots on a floor surface. In addition, a cleaning fluid distribution system is adapted to selectively distribute a liquid cleaning solution to the soiled spot. A propellant, in the form of an aerosol or compressed gas can be used to distribute the cleaning powder to the floor. A method of cleaning a spot on a surface comprises applying a selected volume of fluid cleaning solution to a selected area on the surface to be cleaned, applying a selected amount of cleaning powder to the selected area and extracting the applied cleaning solution and cleaning powder from the selected area on the surface to be cleaned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.