Floor scrubber and buffer
US4150456A · kind A · utility
Inventors
Key dates
| Filing date | Jul 7, 1978 |
| Grant date | Apr 24, 1979 |
| Priority date | — |
| Expiry date | Jul 7, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/4097
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A floor scrubber is provided with a propane powered internal combustion engine which is mounted on a wheeled dolly and which is attached by its rotary output shaft to a circular cage provided with a plurality of rotary brushes on the underside thereof. More specifically the output shaft from the internal combustion engine is connected through a pulley arrangement to the various rotary brushes and accordingly the cage and the brushes are driven in counter-rotation. Included in the structure of the dolly is a spring loaded, telescoping support for deploying a serrated clean-out bar which by angular alignment can be placed under the path of advance of the pads in the cage, thus providing a cleaning function therefor. The internal combustion engine, furthermore, is contained in a noise reducing housing which furthermore is provided with a fan for cooling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.