Liquid purification or separation – Filter – Resting on supporting receiver – e.g. – portable
Patent
1997-01-28
1998-08-11
Walker, W. L.
Liquid purification or separation
Filter
Resting on supporting receiver, e.g., portable
210474, 210476, 210477, 210481, 210482, B01D 29085
Patent
active
057923566
ABSTRACT:
A funnel for filtering particulate from a liquid with improved filtration flow rate using flow paths through a filtering interface defined by a filter element and orifices predominantly on the wall of a conical inner funnel member. Particulate accumulates at the vertex of the inner funnel member. Filtered liquid passes through a collecting chamber between the inner funnel member and an outer funnel member and discharges through a spout. Filtration through the funnel may be assisted by application of a vacuum suction on the filtered liquid side of the filter element or application of a positive pressure on the unfiltered liquid side of the filter element. The inner and outer funnel members can be easily disassembled for cleaning.
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patent: 4832845 (1989-05-01), Hendretti
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Post Philip O.
Walker W. L.
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