Liquid purification or separation – Structural installation – Geographic
Patent
1994-04-11
1996-01-09
Dawson, Robert A.
Liquid purification or separation
Structural installation
Geographic
210435, 2105322, 210460, 210470, B01D 2124
Patent
active
054826217
ABSTRACT:
Filter device useful in continuous separation of solid matter from a fluid, such as liquid wastewater where the filter includes a tubular filter element with a series of slots of selected width extending through the tubular element.
The element has a central opening and can be received in a casing to form an annular area between the tubular filter element and the casing so the central opening is open to receive the fluid to be filtered as the fluid flows through the slots from the central opening to the annular area. The casing can also include an outlet from the annular area so the fluid can be emitted from the assembly. A seal can be provided between the tubular element and the inside of the casing at a location below the slots in the tubular element and above the outlet from the casing.
A tubular filter element is composed of two identical halves which are mated to form the element with an integral stop at one end to seal to engage a cooperative stop in the casing receiving the element and a seal at the opposite end of the element to engage the inner surface of the casing.
REFERENCES:
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patent: 2900084 (1959-08-01), Zabel
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patent: 4082676 (1978-04-01), Dulger
patent: 4179372 (1979-12-01), Rosaen
patent: 4278455 (1981-07-01), Nardi
patent: 4439323 (1984-03-01), Ball
patent: 4710295 (1987-12-01), Zabel
patent: 4931180 (1990-06-01), Darchambeau
patent: 5207896 (1993-05-01), Graves
patent: 5242584 (1993-09-01), Hoarau
Dawson Robert A.
Lamb Charles G.
Popovics Robert James
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