Disposable fluid filter

Claim 1

A DISPOSABLE FLUID FILTER CARTRIDGE, COMPRISING IN COMBINATION: AN ELONGATED OPEN ENDED CYLINDRICAL HOUSING HAVING AN AXIALLY EXTENDING ANNULARLY ENLARGED PORTION SURROUNDING THE OPEN END THEREOF AND A PORT FOR CONNECTION TO A FLUID SYSTEM AT THE CENTER OF THE CLOSED END; AN OPEN ENDED CYLINDRICAL COVER MEMBER THEREFOR HAVING AN ANNULAR RADIALLY EXTENDING FLANGE PORTION SURROUNDING THE OPEN END THEREOF DIMENSIONED TO BE POSITIONED WITHIN THE ENLARGED PORTION OF SAID HOUSING AND A PORT FOR CONNECTION TO A FLUID SYSTEM ON THE CLOSED END; A TUBE MEMBER OF SUBSTANTIALLY LESS DIAMETER THAN SAID HOUSING, SAID TUBE MEMBER BEING PERFORATED OVER A PORTION OF ITS AXIAL LENGTH AND SAID PERFORATED PORTION IS DISPOSED IN PROXIMITY TO THE CLOSED END OF SAID HOUSING; A CUP MEMBER HAVING A RADIALLY EXTENDING FLANGE AT ONE END AND HAVING AN OUTSIDE DIAMETER ALONG ITS AXIAL LENGTH SUBSTANTIALLY THAT OF THE INSIDE DIAMETER OF SAID TUBE MEMBER; SEALING MEANS SURROUNDING THE OUTSIDE OF THE TUBE MEMBER AND THE RADIALLY EXTENDING FLANGE ON SAID CUP MEMBER; FLUID FILTERING MEDIA POSITIONED INTERMEDIATE SAID TUBE MEMBER AND SAID HOUSING; AND A PERFORATED PLATE MEMBER HAVING A CIRCULAR CENTER PORTION ADAPTED TO ENGAGE AND HOLD THE END OF SAID TUBE MEMBER AGAINST LATERAL MOVEMENT AND HAVING AN AXIALLY EXTENDING PERIPHERAL PORTION HAVING AN OUTSIDE DIAMETER THE SAME AS THE INSIDE DIAMETER OF SAID HOUSING AND A RADIAL FLANGE EXTENDING FROM SAID AXIALLY EXTENDING PORTION, SAID AXIALLY EXTENDING PORTION BEING DIMENSIONED WITH RESPECT TO SAID HOUSING AND SAID TUBE WHEREBY FLUID SEALING ENGAGEMENT OF SAID RADIALLY EXTENDING FLANGES ON SAID PLATE MEMBER AND SAID COVER MEMBER WITH THE ANNULARLY ENLARGED PORTION ON SAID HOUSING SECURELY POSITIONS SAID TUBE MEMBER INTERMEDIATE THE CLOSED END OF SAID HOUSING AND SAID PLATE MEMBER.