B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/78
B01D 29/66 (2006.01) B01D 29/15 (2006.01) B01D 35/153 (2006.01) B01D 29/94 (2006.01)
Patent
CA 1327024
ABSTRACT OF THE DISCLOSURE A self-cleaning fluid filter is described which comprises a housing having spaced inlet and outlet port in a common wall, for pressurized fluid. A first sleeve extends from the common wall along an axis of the housing. An interior chamber of said first sleeve is in fluid communication with the outlet port. The first sleeve has a narrowed portion proximate the outlet port and an expanded portion remote from the outlet port. The narrowed portion of the first sleeve has at least one orifice formed therein. A second sleeve extends from the common wall and generally concentrically encircles a portion of the narrowed portion of the first sleeve to define a generally annular space in fluid communication with the inlet port therebetween. The second sleeve has a distal end spaced axially from the expanded portion of the first sleeve. A cylindrical filter cartridge encircles the expanded portion of the first sleeve and is disposed for telescoping movement, in response to pressurized fluid flow through the inlet port, relative to the expanded portion of the first sleeve. A valve member is received within the narrowed portion of the first sleeve. The valve member is telescopically movable and is urged by means responsive to movement of the filter cartridge from a primary position and to a secondary position as flow is introduced through the inlet port. The invention provides a filtration mechanism which is simple in both its construction and operation. Furthermore, it provides a filter which has a virtually unlimited operational life.
591972
C.i.b. Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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