Apparatus and method for piezoelectric pumping
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United States of America Patent
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May 22, 1984
Grant Date -
N/A
app pub date -
May 4, 1982
filing date -
May 4, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus of pumping a fluid by means of a piezoelectric pump is provided. All moving parts, including the valves and impeller, are piezoelectrically motivated. The preferred embodiment includes a piezoelectric ceramic tube having conductive bands adhered to the outer surface. The conductive bands and an inner surface electrode define tube regions which serve as valve and reservoir pump regions.
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