Water fill sensing for a dishwasher

Details Water fill sensing for a dishwasher Water fill sensing for a dishwasher

1996-03-13

1998-09-08

Warden, Jill

Cleaning and liquid contact with solids

Processes

Combined

134 57D, B08B 704

Patent

active

058039856

ABSTRACT:
A control system for a dishwasher (10) utilizing a turbidity sensor (24) to achieve an optimum fill cycle water level in a sealable chamber (12) into which soiled dishes are loaded. An electronically actuable fill valve (20) is controlled by a microprocessor (22) in response to signals received from the sensor (24) indicative of the turbidity of water in the chamber (12) during the fill cycle. Once turbidity of the water in the chamber stabilizes or drops to a predefined level, the fill water is determined to have reached an optimum level and the flow of supply water is shut off.

REFERENCES:
patent: 5291626 (1994-03-01), Molnar et al.
patent: 5313964 (1994-05-01), Dausch et al.
patent: 5330580 (1994-07-01), Whipple, III et al.
patent: 5408716 (1995-04-01), Dausch et al.
patent: 5419163 (1995-05-01), Kim et al.
patent: 5438507 (1995-08-01), Kim et al.

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