Liquid purification or separation – Particulate material type separator – e.g. – ion exchange or... – Selective units or compartments
Patent
1991-08-22
1993-04-27
Dawson, Robert A.
Liquid purification or separation
Particulate material type separator, e.g., ion exchange or...
Selective units or compartments
210266, 210283, 210284, 210288, B01D 2702
Patent
active
052059324
ABSTRACT:
A compression sealed bacteriostatic purification and filtration system canister for the treatment of water and other piped liquids which includes a plurality of sequential granular filtering media beds separately contained within respective sections of the canister. The canister walls have molded internal grooves to prevent channeling and to hold section separators; the structural filter separators are highly porous semi-rigid discs, and snap into the grooves. The cylindrical sections increase in diameter in the direction of liquid flow. The sections are axially stacked within the canister. Liquid is admitted at the top end of the pressure vessel tank canister, runs down through the series of sections, and then returns to the canister top to exit through an axial riser tube. The tank canister has a screw-on compression sealed cap which contains fluid inlet and outlet pressurized disconnect couplings to allow leak-free back flushing. Each compartmentalized section is cylindrical or partially conical; the conical sections interconnect with the cylindrical sections. In the cylindrical sections, the flow rate is adjusted to the particular medium therein by the in-line fluid pressure and the diameter of that section. The medium contact time is adjusted, in part, by the length of the section.
REFERENCES:
patent: 2300014 (1942-10-01), Saussure
patent: 2328381 (1943-08-01), Jaffe
patent: 3554377 (1971-01-01), Miller
patent: 3791520 (1974-02-01), Nieuwenhuls
patent: 4529511 (1985-07-01), Breeden et al.
patent: 5089108 (1992-02-01), Small
Benefield Bruce
Solomon Fred
Dawson Robert A.
Litman Richard C.
Millard W. L.
Nu-Water Systems, Inc.
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