Liquid purification or separation – Flow – fluid pressure or material level – responsive – Float
Patent
1995-05-08
1996-12-10
Popovics, Robert J.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Float
210232, 210237, 2104161, 210521, 210522, 2105322, B01D 2124
Patent
active
055827160
ABSTRACT:
A filter unit for use in a septic tank system includes a housing having an upper section and a lower section wherein the upper section has a cross-sectional area greater than the lower section. The lower section receives a plurality of disc-dam units to form a filter unit therein wherein each disc-dam unit is provided with an outer periphery partitioned by an upwardly directed dam to define a fluid inlet on one side of the dam and a fluid outlet on the opposite side of the dam. The distance between an upper surface of the dam and a lower surface of a disc-dam unit forming slots of preselected height to provide defined slots for the flow of waste water thereacross from the inlet side to the outlet side of the disc-dam units. The lower section is also provided with a vertical chamber therein in flow communication with the fluid outlet of the disc-dam units and the upper section of the housing. A positive pressure pump is disposed within the upper section of the housing wherein an inlet in the pump is in flow communication with the upper section or disc-dam outlets and an outlet from the pump is in flow communication with a discharge conduit from the housing. The positive pressure pump is actuated in response to a level control device in the upper housing.
REFERENCES:
patent: 2900084 (1959-08-01), Zohel
patent: 3332552 (1967-07-01), Zohel
patent: 4439323 (1984-03-01), Ball
patent: 4710295 (1987-12-01), Zohel
patent: 4997562 (1991-03-01), Warner
patent: 5242584 (1993-09-01), Hoarau
patent: 5382357 (1995-01-01), Nurse
Lamb Charles G.
Popovics Robert J.
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