Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Position or extent of motion
Patent
1981-04-28
1983-08-16
Spear, Jr., Frank A.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Position or extent of motion
210140, 2103213, B01D 3100
Patent
active
043990304
ABSTRACT:
A cleaning and/or disinfecting system for flushing water and chemical treatment liquids through the hydraulic circuitry of dialysate preparation and supply apparatus, the system employing, for each particular treatment liquid of a plurality of possible liquids, a keyhole adjacent to a chemical intake port and means to send electrical signals to an electrical controller indicating the presence of a key within a particular keyhole, whereby the particular treatment liquid connected to the port is flushed through the hydraulic circuitry of the apparatus at the proper flowrate and for the desired period of time.
REFERENCES:
patent: 3170667 (1965-02-01), Szohatzky
patent: 3871913 (1975-03-01), Shaldon
patent: 4150673 (1979-04-01), Watt
patent: 4166031 (1979-08-01), Hardy
patent: 4209402 (1980-06-01), Gentles
patent: 4332264 (1982-06-01), Gortz et al.
Hlavinka Dennis J.
Johnson Steven H.
Zook James L.
Cobe Laboratories, Inc.
Spear, Jr. Frank A.
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