Piezo-electric vibrator pump
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United States of America Patent
Stats
-
Jul 3, 1990
Grant Date -
N/A
app pub date -
Dec 23, 1988
filing date -
Dec 28, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pump is comprised of a piezo-electric vibrator mounted in a casing. The piezo-electric vibrator is coated with an elastic elastomer layer, and a peripheral part of the elastomer layer is secured to the casing within the casing. Suction and discharge of fluid is performed by means of piezo-electric vibrator vibrated by applying alternative current voltages between electrodes of the piezo-electric vibrator. The vibration of the piezo-electric vibrator is performed smoothly to produce and high discharge volume and discharge pressure can be produced.
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