Liquid purification or separation – Filter – Within flow line or flow line connected close casing
Patent
1979-06-07
1981-03-31
Adee, John
Liquid purification or separation
Filter
Within flow line or flow line connected close casing
210451, 210496, 210510, 210927, 128214R, B01D 3502
Patent
active
042591872
ABSTRACT:
A fluid filter is disclosed for use in filtering intravenous fluids as they are administered to a patient. The unique filter employs a normally hydrophobic (water-repellent) depth-type filter element, which has a sufficiently large pore size and volume of pores to permit an adequate gravitational flow of intravenous fluid from an elevated reservoir. Particulate matter is filtered out by the tortuous passageways in the filter element, through which liquid must pass. Due to the relatively large pore size (20 microns or larger) of the filter element, in combination with the normal hydrophobic property, any gas entrained in the liquid also passes through the filter element and does not accumulate on the filter surface to block flow therethrough--so called "air blocking".
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Bancsi Joseph A.
DeFrank Michael P.
Adee John
Baxter Travenol Laboratories Inc.
Flattery Paul C.
Kirby, Jr. John P.
McFarron Gary W.
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