Fluid filtering device

Claim 1

A FLUID FILTER DEVICE COMPRISING (A) A FILTER HOUSING AND A COLLECTOR HOUSING CONNECTED BY A COMMON WALL PORTION TO FORM A CLOSED FILTER CHAMBER AND A PRESSURE SEALED COLLECTING CHAMBER SEPARATED BY SAID COMMON WALL KPORTION, (B) A FILTER ASEMBLY COMPRISING A CYLINDRICAL FILTER ELEMENT AND BEING ROTATABLY CARRIED IN SAID FILTER CHAMBER ON AN AXIS SUBSTANTIALLY PARALLEL WITH THE PLANE OF SAID COMMON WALL PORTION, (C) SAID FILTER HOUSING HAVING AN INLET OPENING TO SAID FILTER CHAMBER EXTERIORLY OF SAID FILTER ELEMENT AND AN OUTLET OPENING TO SAID FILTER CHAMBER INTERIORLY OF SAID FILTER ELEMENT. (D) MEANS SELECTIVELY OPERABLE TO ROTATE SAID FILTER ELEMENT, (E) AN ELONGATED EJECTOR MEMBER CARRIED IN SAID FILTER HOUSING AND HAVING A PORTION EXTENDING INTO THE INTERIOR OF SAID FILTER ELEMENT. (F) SAID EJECTOR MEMBER HAVING A LONGITUDINAL SLOT DISPOSED CLOSELY ADJACENT A PORTION OF THE INNER WALL OF SAID FILTER ELEMENT WHEREBY AS SAID FILTER ELEMENT IS ROTATED THE PORTION OF SAID FILTER ELEMENT WALL ADJACENT SAID SLOT IS CHANGED. (G) AN ELONGATED OPENING IN SAID COMMON WALL PORTION CLOSELY ADJACENT AND SUBSTANTIALLY PARALLEL TO SAID LONGITUDINAL SLOT, (H) MEANS OPERABLE TO FORCIBLY CONDUCT FLUID FROM THE OUTLET SIDE OF SAID FILTER ELEMENT THROUGH SAID LONGITUDINAL SLOT AND THROUGH SAID ELONGATED OPENING WHEREBY FLUID IS EJECTED THROUGH SAID FILTER ELEMENT INTO SAID COLLECTOR HOUSING IN A DIRECTION IN REVERSE OF NORMAL FLOW THROUGH SAID FILTER ELEMENT, AND (I) A SECOND LONGITUDINAL OPENING PROVIDED IN SALL WALL PORTION OPENING TO THE INLET SIDE OF SAID FILTER ELEMENT WHEREBY FLUID IS RETURNED TO THE FLUID SYSTEM FROM SAID COLLECTOR HOUSING WITHOUT LOSS OF PRESSURE.