Upright carpet and upholstery extractor
US6138322A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1997 |
| Grant date | Oct 31, 2000 |
| Priority date | — |
| Expiry date | Feb 24, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/4088
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A novel upright carpet cleaning extractor is disclosed which may be conveniently converted from the floor cleaning mode to the upholstery and/or stair cleaning mode. The overall configuration and operation of the extractor is similar to that of a typical upright vacuum cleaner and may be operated in the forward or reverse direction similar to a typical upright vacuum cleaner. When in the floor cleaning mode, cleaning solution is supplied to a solution distributor by gravity flow. However, when converted to the upholstery cleaning mode an auxiliary, air turbine driven cleaning solution pump is automatically energized for supplying pressurized cleaning solution to an upholstery or stair cleaning nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.