Washing method using a fluidic oscillator

Details Washing method using a fluidic oscillator Washing method using a fluidic oscillator

1981-12-17

1983-10-04

Coe, Philip R.

Bleaching and dyeing; fluid treatment and chemical modification

Fluid treatment

Manipulation of liquid

8159, D06F 700, D06F 3906

Patent

active

044070322

ABSTRACT:
In a clothes washer, liquid pulses are delivered to a bucket or tank of water to create continuously re-circulating flow therein in a vertical plane. The flow carries the clothes in a tumbling action and the pulses agitate the clothes passing the pulse source. Air is introduced into the water pulses and forms air bubbles in the tank which attract dirt particles and carry them to the surface where they are removed as part of a continuous surface overflow. In a preferred embodiment the liquid pulses are delivered by a novel fluidic oscillator of the feedback type in which air is continuously entrained by the power stream from each feedback passage in alternation.

REFERENCES:
patent: 1748296 (1930-02-01), Lombard
patent: 2972878 (1961-02-01), Dickey
patent: 3438072 (1969-04-01), Heskestad
patent: 3444710 (1969-05-01), Gaugler et al.

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