Device for scrubbing surfaces
US4097950A · kind A · utility
32Cited by
6References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 7, 1977 |
| Grant date | Jul 4, 1978 |
| Priority date | — |
| Expiry date | Mar 7, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/4069
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A device for scrubbing surfaces having pairs of freely rotatable brushes each mounted on a shaft having an offset tip portion. Each shaft is mounted on a rotating support plate and half of the shafts rotate clockwise and the other half rotate counter-clockwise. In the preferred embodiment, the scrubbers have slanted bristles which bias the rotation of each scrubber in the direction of rotation of the shaft it is mounted upon. The preferred embodiment is particularly well suited for use in cleaning carpets using the powdered cleaning composition described in U.S. Pat. No. 4,013,594.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.