Debris sensor for cleaning apparatus
US7459871B2 · kind B2 · utility
157Cited by
127References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2007 |
| Grant date | Dec 2, 2008 |
| Priority date | — |
| Expiry date | Sep 24, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S901/46
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A piezoelectric debris sensor and associated signal processor responsive to debris strikes enable an autonomous or non-autonomous cleaning device to detect the presence of debris and in response, to select a behavioral mode, operational condition or pattern of movement, such as spot coverage or the like. Multiple sensor channels (e.g., left and right) can be used to enable the detection or generation of differential left/right debris signals and thereby enable an autonomous device to steer in the direction of debris.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.