Liquid purification or separation – With alarm – indicator – register – recorder – signal or...
Patent
1987-08-19
1989-03-21
Castel, Benoit
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
210 962, 21032169, 21032171, B01D 1300
Patent
active
048140732
ABSTRACT:
Dialysate preparation apparatus for mixing dialysate concentrate with water, the apparatus including a main flow line having one end for connection to a source of water and another end for providing dialysate to a dialyzer, a concentrate flow line having one end for connection to a source of dialysate concentrate and another end connected to a junction on the main flow line for adding concentrate to water in the main flow line, a volumetric pump having a fixed discharge volume per stroke on the concentrate line, a concentrate sensor on the main flow line downstream of the junction providing control signals to the pump to pump concentrate to achieve the desired concentration, and a controller including a comparator to compare the stroke rate with a limit indicating desired operating stroke rate range.
REFERENCES:
patent: 4060485 (1977-11-01), Eaton
patent: 4202760 (1980-05-01), Storey
patent: 4366051 (1982-12-01), Fischel
patent: 4371385 (1983-02-01), Johnson
patent: 4648043 (1987-03-01), O'Leary
Chem-Tech International/Iwaki brochure on EP Series Pumps, printed 10/82.
Control Engineering, Mar. 1987, advertisement for Foxboro 760 and 761 controllers.
Castel Benoit
Cobe Laboratories, Inc.
Jordan Richard D.
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