Method of operating a laundry appliance drain pump

Details Method of operating a laundry appliance drain pump Method of operating a laundry appliance drain pump

2006-12-12

2006-12-12

Perrin, Joseph L. (Department: 1746)

Bleaching and dyeing; fluid treatment and chemical modification

Fluid treatment

Manipulation of liquid

C068S012140

Reexamination Certificate

active

07146670

ABSTRACT:
A method of operating a drain pump in a laundry washing machine during the drain phase of the wash cycle to reduce pump blockages is disclosed. The method includes the steps of (a) starting the pump and running it for a first period of time to produce a discharge of a given flow rate, (b) stopping the pump and leaving the pump stopped for a second period of time, and repeating steps (a) and (b) for the duration of said drain phase, said second period of time being such that the flow rate reduces substantially to zero.

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English abstract of JP 61-162980.

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