Apparatus for conveying liquids
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United States of America Patent
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-
May 23, 1995
Grant Date -
N/A
app pub date -
Sep 10, 1993
filing date -
Sep 11, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a device for conveying liquids having an intermittently energized pump and a filter for retaining air bubbles preceding the input side of the pump, the filter contains an admission opening in the form of a long gap and the gap volume is greater than the conveying volume of the pump given a single pump action. Even an air bubble that nearly completely covers the gap cannot be conveyed therethrough as long as the gap is in contact with the liquid to be pumped at some location.
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