B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 24/08 (2006.01) B01D 24/46 (2006.01) B01D 29/15 (2006.01) B01D 35/147 (2006.01)
Patent
CA 2299121
A filtering device includes a container having an inlet for introducing liquid to be treated, an annular multi-layered prepacked screen assembly (7) provided in the container and having an outlet for treated liquid. The screen assembly includes three or more cylindrical screens (9,10,11) having different diameters and bieng coaxially disposed in the container with their axes extending vertically in the container. An anulus (12,13) is formed between the respective cylindrical screens (9,10,11). Two or more different filter materials performing different filtering functions are filled one in each of the annuluses between the cylindrical screens.
Moffat & Co.
Nagaoka Tadayoshi
LandOfFree
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