Self-propelled cleaning device with wireless remote-control
US4306329A · kind A · utility
304Cited by
10References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 5, 1979 |
| Grant date | Dec 22, 1981 |
| Priority date | — |
| Expiry date | Oct 5, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2201/04
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A self-propelled cleaning device with wireless remote control includes a body, a driving device on the body for moving the same rotatably about its axis or in a straight line along the underlying ground surface, and a vacuum cleaning device carried on the body with its suction port open to the underside thereof. The cleaning device normally rotates on its axis at a stationary or fixed location on the underlying surface for concentrated spot cleaning of the underlying surface. The wireless remote control is effective to change the operative mode of the cleaning device from stationary rotation to straight-line travel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.