Device for controlling a liquid flow in a tubular duct and particularly in a peristaltic pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 11, 2000
Grant Date -
N/A
app pub date -
Jul 3, 1997
filing date -
Jan 5, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A device for sensing gas bubbles in a liquid flowing through a duct, particularly the outlet duct of a peristaltic pump, including two piezoelectric components shaped and excited so that they vibrate axially. One of the components is a transmitter and the other is a receiver. One of the piezoelectric components is secured to a movable support, and its displacement is detected in order to detect excess pressure in the liquid flowing through the duct.
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