Surface cleaner with power drive
US7062816B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2002 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Jun 24, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2007/0874
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A portable surface cleaning apparatus comprises a fluid dispensing system including at least one fluid supply tank, a dispensing nozzle connected to the fluid supply tank through a fluid supply conduit for applying a cleaning fluid to a surface to be cleaned, a fluid recovery tank for holding recovered fluid, a suction nozzle, a working air conduit extending between the recovery tank and the suction nozzle, a vacuum source in fluid communication with the recovery tank for generating a flow of working air from the suction nozzle through the working air conduit and to the recovery tank to thereby recover fluid from the surface to be cleaned through the suction nozzle and working air conduit and into the recovery tank, and a power drive mechanism for selectively propelling the portable cleaning apparatus over the surface to be cleaned
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.