Robotic floor cleaning device
US6605156B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2002 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Mar 21, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2201/06
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A robotic floor cleaning device comprises a chassis (10), motor-driven wheels (11) supporting the chassis (10), a motor-driven suction fan (9), a dirty air inlet (2) and a motor-driven rotatable agitator (4) at the dirty air inlet (2) for agitating the surface. A control system navigates the device around a room and distributes power to the motor-driven wheels (11) and to the agitator (4). The control system detects when the agitator (4) has jammed (100, 102) and, in the event of a jam, attempts to clear the jam (104, 106). After successfully clearing the jam the control system turns the agitator (4) off (114, 116, 118) or navigates the cleaning device around the location at which the jam occurred (119). The cleaning device can store the location of the jam for use in preventing further jams when the cleaning device returns to a similar position in the room.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.