Enhanced cycles for an automatic appliance
US5669983A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1995 |
| Grant date | Sep 23, 1997 |
| Priority date | — |
| Expiry date | Jun 8, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2501/30
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An automatic dishwashing machine includes enhanced drying and draining cycles. Toward the end of the rinse and hold cycle when the water is draining, a second quantity of water is added to the machine resulting in a purging action which reduces the concentration of soil in the wash pump. During the normal wash cycle, if the dishwashing machine determines that the water is sufficiently dirty, a second drain is initiated to remove any dirty water that is present in the bottom of the pump after the first drain. During the dry cycle, the machine senses the temperature of the water and the presence of a rinse aid to select an appropriate dry cycle. The possible dry cycles include a delayed dry cycle and a pulsed dry cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.