Dishwasher with downward opening pump inlet mouth for improved o

Details Dishwasher with downward opening pump inlet mouth for improved o Dishwasher with downward opening pump inlet mouth for improved o

1996-06-17

1997-05-20

Coe, Philip R.

Cleaning and liquid contact with solids

Apparatus

With movable means to cause fluid motion

134191, 134195, 137387, 137563, A47L 1542

Patent

active

056304374

ABSTRACT:
A dishwasher is provided with a flapper valve for directing water from a recirculation pump to spray arms or a drain. The valve is spring biased toward a recirculate position and solenoid operated to a drain position. An inlet of the pump is provided with a downwardly curved suction pipe having a generally horizontal bell mouth. The dishwasher has a sump separated into a pump chamber and a collection chamber. The pump inlet is located in the pump chamber and has a mouth that is located below a level of the bottom of the collection chamber. Wash liquid is pumped through a venturi in the collection chamber to a drain.

REFERENCES:
patent: 2621505 (1952-12-01), Smith
patent: 3078858 (1963-02-01), Jacobs et al.
patent: 4150680 (1979-04-01), Johnson et al.
patent: 4467627 (1984-08-01), Platt et al.
patent: 4741357 (1988-05-01), Battel et al.
patent: 4848382 (1989-07-01), Bertsch et al.
patent: 5010920 (1991-04-01), Tolf et al.
patent: 5031427 (1991-07-01), Pastryk et al.
patent: 5493745 (1996-02-01), Hauch

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