Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1977-10-06
1979-09-11
Cuchlinski, Jr., William A.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 82, 210 95, 210411, 210500R, 210503, 55512, 55517, 55DIG16, B01D 3906
Patent
active
041674820
ABSTRACT:
A filtering apparatus has a housing and a brush-like filter element in the housing. The filter element includes a support which is permeable to the liquid or gas to be filtered. A filtering medium is secured to the permeable support and is in the form of strands which may be formed from flexible natural fibers, synthetic resin fibers, glass fibers, graphite fibers or metal fibers. The strands are so arranged that they are pressed against the permeable support during a filtering operation. This causes the strands to form a mat on the permeable support. The liquid or gas must pass through the mat and is thereby filtered. A filtering method using the apparatus involves passing a liquid or gas through the filter element so that a mat for filtering the liquid or gas is formed by the strands, and the liquid or gas is purified after leaving the filter element. When the strands have been loaded with impurities, a rinsing fluid is passed through the filter element in a direction countercurrent to that of the flow during the filtering operation. This causes the strands to straighten and permits the rinsing fluid passing through the filter element to remove the impurities from the strands. The filter element is thereby regenerated and can again be used for filtering. The method and apparatus enable a filter element to be cleaned and regenerated without requiring replacement of the filter element and without requiring that the filtering apparatus be opened.
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Cuchlinski Jr. William A.
Striker Michael J.
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