Apparatus for cleaning a surface
US11490774B2 · kind B2 · utility
2Cited by
17References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2019 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Jun 21, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An apparatus for cleaning a surface includes a liquid delivery system for storing cleaning liquid and delivering the cleaning liquid to the surface to be cleaned, a fluid recovery system and a control system. The control system includes a controller that is coupled to a fluid level sensing assembly. Methods of operating the same include sensing foam or liquid with the fluid level sensing assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.