Filter system

Details Filter system Filter system

1982-12-27

1984-01-24

Adee, John

Liquid purification or separation

Processes

Separating

210807, 210136, 210196, 210265, C02C 118

Patent

active

044275552

ABSTRACT:
A filter system wherein there is a first chamber containing fluid at a predetermined level, a shroud positioned in the first chamber immersed in the fluid, said shroud defining a downwardly-open second chamber, a quantity of discrete, buoyant bodies supported in the shroud by flotation, said discrete, buoyant bodies defining a filter media, a conduit connected to the top of the shroud for delivering fluid to the shroud at a pressure to displace the discrete, buoyant bodies downwardly therein as the fluid is forced downwardly into the shroud and into the lower part of the first chamber below the shroud, a second chamber surrounding the first chamber, a conduit connecting the top of the shroud with the second chamber, a conductor connected to the bottom of the second chamber providing an outlet from the bottom and valves in the several conduits operable on the one hand to admit fluid into the shroud and to permit fluid to be withdrawn from the third chamber while blocking flow of fluid from the first chamber to the second chamber and on the other hand to terminate flow of fluid into the shroud and flow from the second chamber while permitting flow from the shroud into the second chamber.

REFERENCES:
patent: 3655048 (1972-04-01), Pergola
patent: 3956128 (1976-05-01), Turner
patent: 4033872 (1977-07-01), Mori et al.
patent: 4277336 (1981-07-01), Henschel, Jr.

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