Back-washable filter element comprised of perforated tubes
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United States of America Patent
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-
Jul 25, 1995
Grant Date -
N/A
app pub date -
May 13, 1993
filing date -
Sep 13, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A back-washable, candle filter element has a center tube with a closed peripheral wall surrounded by a plurality of perforated tubes. A head part has bores and a seat and receives a pressure control arrangement located between the bores. The bores establish a direct link between the top openings of the perforated tubes and the central tube for increasing a filtration power in a controlled manner, and for back-washing and drying a filter cake in a controlled manner.
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