Suction cleaner
US4376322A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1980 |
| Grant date | Mar 15, 1983 |
| Priority date | — |
| Expiry date | Sep 25, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/0045
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A suction cleaner capable of rapid conversion for either on-the-floor or above-the-floor cleaning, is disclosed. The cleaner includes an elongated housing arranged in a generally upright manner and having an elongated, upwardly extending handle at the rear side thereof. A floor nozzle is connected to the lower end of the housing so that the latter "floats" on the surface of a rug or carpet being cleaned. A suction control valve assembly is mounted in a cavity in the rear of the housing so as to be easily removable therefrom. The valve assembly is connected to conduit means extending between a subatmospheric pressure filtering chamber in the housing and the floor nozzle. An auxiliary suction inlet communicates with the filtering chamber, upstream from the suction valve assembly, and one end of an auxiliary suction hose is permanently connected to the auxiliary inlet. The valve of the suction control valve assembly shifts from a position establishing communication between the floor nozzle and the filtering chamber when the cleaner housing is inclined rearwardly for on-the-floor cleaning and to a position preventing communication between the floor nozzle and the filtering chamber when…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.