B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 33/21 (2006.01) B01D 33/23 (2006.01)
Patent
CA 2149090
A filter element for use in a rotating vacuum filter assembly is provided. It has frame having an inner end, an outer end and intermediate sides which define the perimeter of opposed substantially parallel filter regions and a central filter chamber, wherein the inner end is adapted for mounting the frame to a hollow central hub and wherein the inner end defines a central passage which cooperates with a corresponding passage in the hub for communication between the filter chamber and the interior of the hub. It uses a pleated insert mountedwithin the frame substantially parallel to the filter regions to bisect the filter chamber and define a series of alternating opposed V-shaped channels extending from the inner end to the outer end, each of which communicate with the central passage, wherein both sets of ridges of the pleated insert lie substantially coplanar with the corresponding filter regions so that when a filter media is stretched across the filter regions the media will rest upon the ridges and thereby define with the pleated insert a series of V-shaped flow chambers. When a vacuum source is applied at the interior of the hub, liquid is urged to pass through the filter media into the flow chambers and to the hub without the filter media collapsing against the V channel surfaces of the pleated insert. The filter element is useful for removing suspended particles from a liquid carrier.
Gowling Lafleur Henderson Llp
Haythornthwaite Jimmy
LandOfFree
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