Dishwasher cycle pulsing pump out of collection chamber
US5762080A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1997 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Jan 24, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L15/4227
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A washer for washing objects with liquid. The washer includes a wash chamber adapted for holding objects to be washed. The sump has a pump chamber and a collection chamber, both of which are adapted to hold liquid from the wash chamber. A recirculation pump is operable to move liquid from the pump chamber to the wash chamber. A drain pump is operable to move liquid from the pump chamber and the collection chamber to a drain. A rotatable blade is disposed in the collection chamber and is adapted to mince particles therein. A controller is provided for controlling the operation of the recirculation pump and the drain pump. The controller is operable to turn the drain pump on and off during a wash phase in order to move particles from the collection chamber to the drain. The controller is also operable to turn the drain pump on at the end of the wash phase in order to initiate a drain phase wherein the drain pump drains the sump of liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.