Pre-soak option for dishwashers
US9661980B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 9, 2015 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Nov 12, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2501/34
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A dishwasher includes an independent presoak system which may be activated by a user of the dishwasher. The dishwasher presoak system utilizes a storage tank, supply tubes, and set of nozzles which are independent from components used in a washing cycle such that a presoak detergent is applied to items placed within a washing compartment of the dishwasher without being diluted by a standard wash cycle. As part of the presoak system, the dishwasher features a detection system which allows the user to select an automatic presoak operating state whereby the dishwasher utilizes a sensor to determine if items placed into the washing compartment are sufficiently dirty to need a presoak cycle prior to a washing cycle. The dishwasher further relies on a control system to analyze samples taken of the dirtiness levels of items placed within the washing compartment and determine whether a presoak option is necessary or suggested.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.