Window cleaning apparatus
US5655247A · kind A · utility
22Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1994 |
| Grant date | Aug 12, 1997 |
| Priority date | — |
| Expiry date | Nov 21, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2201/06
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A cleaning device for cleaning windows comprises an elongate wiper element (C) which is robotically controlled to move across the surface of the window to apply and remove cleaning fluid therefrom. The robotic control can be arranged so that the movement of the wiper element corresponds to that which it would follow if used manually by a skilled window cleaner. The wiper element maintains continuous contact with the entire surface of the window without displacement of the wiper from the surface of the window during cleaning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.