Vacuum cleaner with a microprocessor-based dirt detection circuit
US6571422B1 · kind B1 · utility
142Cited by
24References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2000 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Sep 26, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/19
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A vacuum cleaner for providing visual operational status indicators includes a vacuum cleaner having internal components that are indicative of the cleaner's performance. Sensors are coupled to at least one of the internal components to be monitored. A microprocessor receives input from the sensors, analyzes the input, and generates an output signal. Visual indicators are carried by the vacuum cleaner and receive the output signals to display the operational status of the vacuum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.