Power supply apparatus for automatic vacuum cleaner
US5682640A · kind A · utility
41Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 1995 |
| Grant date | Nov 4, 1997 |
| Priority date | — |
| Expiry date | Mar 31, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2201/022
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An automatic self-propelled vacuum cleaner includes an electrical power supply cord having a plug. The plug carries latches which can be coupled to either the vacuum cleaner or a wall-mounted socket. The vacuum cleaner carries a light beam receiver which receives a light beam signal emitted from the socket for guiding the vacuum cleaner toward the socket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.