Apparatus for filtering fluids

Details Apparatus for filtering fluids Apparatus for filtering fluids

1975-01-13

1976-01-20

Hart, Charles N.

Liquid purification or separation

Filter

Movable medium

55354, 210 77, 210 90, 210142, 210236, 210398, 210405, B01D 3300

Patent

active

039336506

ABSTRACT:
An apparatus for filtering fluids to remove solid discard particles therefrom, in which the apparatus includes a housing having a filter chamber, an inlet-side sealing chamber, and a discharge-side sealing chamber, a movable fluid inlet member which is movable into and out of the housing and which includes inlet-side and discharge-side bearing surfaces, and flexible sealing members which cooperate with the bearing surfaces in the sealing chambers to seal the filter chamber, a movable length of filter medium, and means for displacing the bearing surfaces and the movable length of filter medium, and which is operated by displacing the discharge-side movable bearing surface so that the movable length of filter medium may pass clear thereof, and displacing the movable length of filter medium clear of the discharge-side movable bearing surface to provide synchronized removal of the used length of filter medium from the filter chamber with discard particles associated therewith which are embedded therein and collected thereby, and indexing of a new length of filter medium in the filter chamber, without interference from or with the discharge-side flexible sealing member and bearing surface, which enables high volume filtration operations, over a wide range of fluid inlet pressures, for long periods of time, to enable filtration of discard particles in a wide range of shapes and sizes. In the apparatus, the flexible sealing members conform to the shape of the bearing surfaces to provide efficient non-bypass sealing of the filter chamber, and reciprocating filter medium gripping elements provide efficient displacement of the continuous length of filter medium.

REFERENCES:
patent: 2348925 (1944-05-01), Reichhelm
patent: 3333693 (1967-08-01), Hirs
patent: 3399778 (1968-09-01), O'Neill
patent: 3478879 (1969-11-01), Hirs
patent: 3647083 (1972-03-01), Niccum et al.

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