Liquid purification or separation – Flow – fluid pressure or material level – responsive – Proportionate feed means
Patent
1980-03-03
1982-09-07
Spear, Jr., Frank A.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Proportionate feed means
55165, 210104, 210127, 210134, 210136, 210137, 210188, 2103213, B01D 3100, A61M 100
Patent
active
043482805
ABSTRACT:
An improved proportioning dialysis machine is disclosed herein. The machine includes an improved degassing system, dialysis solution flow rate and pressure control system, and sterilization system.
The degassing system includes a degassing chamber, a first pump for applying a negative pressure to said chamber and a second pump for drawing degassed water from the chamber. The dialysis solution flow rate and pressure control system includes a restriction upstream of a dialyzer, a restriction placed downstream of the dialyzer, and a pump positioned downstream of the downstream restriction. The two restrictions can be adjusted in relation to the pump so as to control the flow rate and pressure within the dialyzer. The sterilization system includes a heater and controls and a valve for recirculating heated water through the proportioning machine so as to sterilize the interior thereof.
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patent: 3827561 (1974-08-01), Serfass et al.
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George Richard W.
Schnell William J.
Baxter Travenol Laboratories Inc.
Geren Gerald S.
Schuman Thomas R.
Spear, Jr. Frank A.
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