Upright extracton cleaning machine with handle mounting
US6401294B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 24, 2001 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | May 24, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/46
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A portable surface cleaning apparatus including a base module for movement along a surface, an upright handle pivotally attached to the base module, a liquid dispensing system including a fluid supply chamber in the form of a bladder for holding a supply of cleaning fluid, a fluid recovery system including a tank on the base module having a fluid recovery chamber for holding recovered fluid and housing the flexible bladder, wherein the recovery chamber is in fluid communication with the fluid supply chamber and the pressure in the flexible bladder is equalized with the pressure in the tank as the cleaning fluid is dispensed from the supply chamber and the dirty liquid is collected in the recovery chamber. The base module includes upper and lower housing portions and the upright handle is pivotably mounted to the base module through at least one bearing for rotatable reception in the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.