Cleaning and liquid contact with solids – Apparatus – Automatic controls
Reexamination Certificate
2011-08-02
2011-08-02
Barr, Michael (Department: 1711)
Cleaning and liquid contact with solids
Apparatus
Automatic controls
C134S0570DL, C134S0580DL
Reexamination Certificate
active
07988790
ABSTRACT:
A water softener particularly for use in a dishwasher. The water softener is located in the dishwasher water supply (238) between the primary supply valve and the wash chamber. The softener includes a resin container (207) with an ion exchange resin (290). Water supplied to the wash chamber optionally passes through the resin container (207). Regenerating brine is developed in a brine container (203). The brine container (203) is supplied manually with solid salt (270) and water diverted into the container from the main supply at an air break (201). In the regenerating cycle brine is delivered from the brine container (203) to the resin container (207) by a pump (206). The duty cycle of the pump (206) determines the degree of regeneration of the resin (290).
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Blair Daniel Warwick
Maunsell Stephen Robert
Barr Michael
Clark Hill PLC
Fisher & Paykel Appliances Limited
Heckert Jason
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