Turbidity sensor that interrupts drain motor and water valve
US5957144A · kind A · utility
33Cited by
14References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 1998 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | May 18, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2501/05
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The dishwasher of the present invention is adapted to skip a drain cycle if the water in the dishwasher is clean enough. The invention uses a turbidity sensor to sense the turbidity of the water. If the sensed turbidity is below a threshold value, the drain motor and the water valve are disabled to prevent the water from being drained and to prevent additional water from being introduced into the dishwasher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.