System and method for controlling the water fill level within a dishwasher appliance
US11284773B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2020 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Feb 17, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2501/01
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A dishwasher appliance includes a sump, a water supply valve for providing a flow of water into the sump, and a circulation pump that circulates water that is collected in the sump to one or more spray arm assemblies. A pressure sensor is operably coupled to the sump for monitoring sump pressure and wash fluid level. A controller regulates the water supply valve to provide the flow of water into the sump and monitors the sump pressure during the fill process. The controller further determines that the circulation pump is primed when the rate of increase of the sump pressure exceeds the predetermined threshold rate and stops further filling of the sump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.