Process for keeping dustfree an apparatus for detecting impurity particles
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United States of America Patent
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Apr 7, 1992
Grant Date -
N/A
app pub date -
Mar 30, 1990
filing date -
Apr 6, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process and apparatus for detecting impurity particles in fluids, particularly in infusion solutions contained in bottles, with the apparatus including illuminating and etecting device for defining an optical path through which a fluid is conveyed along a fluid conveying path. To increase reliability of detection, pure air is blow from the optical path into a fluid conveying channel thereby ensuring freedom from dust. The conveying channel of the fluid in a vicinity of the illuminating and detecting device, in a direction of the optical path, has an opening, and a blower having a filter is located on the other side of the opening, as viewed in a direction of the conveying path.
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