Washing method using a fluidic oscillator
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United States of America Patent
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-
Oct 4, 1983
Issued Date -
N/A
app pub date -
Dec 17, 1981
filing date -
May 2, 1973
priority date (Note) -
Expired
status (Latency Note)
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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.
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