Dishwasher filter assembly
AssigneeWhirlpool Corporation
InventorsMark S. Feddema, Antony Mark Rappette, Lisa M. Fehner
Life of this patent
Estimating the term…
Abstract
A dishwasher includes a tub with an access opening to a treating chamber, a sump, at least one sprayer emitting liquid into the treating chamber, a pump, a conduit fluidly coupling the sump to the pump and the pump to the at least one sprayer, thereby defining a recirculation circuit through which the liquid sprayed into the treating chamber collects in the sump and is pumped back to the at least one sprayer. The dishwasher also includes a filter assembly in the sump for filtering the liquid in the recirculation circuit including a cleaning element.
Claims20
A dishwasher comprising:
- a tub at least partially defining a treating chamber with an access opening;
- a sump fluidly coupled to the treating chamber;
- at least one sprayer emitting liquid into the treating chamber;
- a pump;
- a conduit fluidly coupling the sump to the pump and the pump to the at least one sprayer, thereby defining a recirculation circuit through which the liquid sprayed into the treating chamber collects in the sump and is pumped back to the at least one sprayer;
- and,
- a filter assembly provided in the sump and filtering the liquid in the recirculation circuit and comprising a filter having a filter wall through which the liquid passes and a cleaning element in rolling contact with the filter wall.
A dishwasher comprising:
- a tub at least partially defining a treating chamber with an access opening;
- a sump fluidly coupled to the treating chamber;
- at least one sprayer emitting liquid into the treating chamber;
- a pump;
- a conduit fluidly coupling the sump to the pump and the pump to the at least one sprayer, thereby defining a recirculation circuit through which the liquid sprayed into the treating chamber collects in the sump and is pumped back to the at least one sprayer;
- and,
- a filter assembly provided in the sump and filtering the liquid in the recirculation circuit and comprising a filter having a filter wall through which the liquid passes;
- a cleaning element in contact with the filter wall;
- and
- a displacement body positioned adjacent the filter wall to raise the level of liquid relative to the filter wall.
Dependencies are inferred from the claim text.