Centrifugal ultrafilter unit for ultrafiltration of biochemical solutions
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United States of America Patent
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-
Sep 6, 1988
Grant Date -
N/A
app pub date -
Mar 19, 1985
filing date -
Mar 21, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A separator (1; 51) including a solution reservoir (3; 53) having a solution chamber (3a; 53a) for putting therein a solution, a membrane support base (4; 54) joined to the solution reservoir, an ultrafiltration-oriented filtering membrane (5; 55) held between the solution reservoir and the support base, and a filtrate cup (2) attached to the support base, in which the solution reservoir and the support base are each respectively made of a thermoplastic material, wherein the solution reservoir is ultrasonically welded to the support base at a part (3b; 53b) thereof spaced apart by a predetermined distance (l.sub.1 ; l.sub.2) from the filtering membrane.
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