Domestic water filter

Claim 1

A FILTER ELEMENT FOR ENTRAINING MATERIAL, FILTERED FROM A FLUID, SUBSTANTIALLY ENTIRELY WITHIN THE ELEMENT AND REMOVABLY INSERTABLE AS A UNIT IN THE HOUSING OF A FILTER STRUCTURE, COMPRISING: A GENERALLY FRUSTO-CONICAL FILTER CAGE OPEN AT ITS BASE, OUTLET END AND HAVING A PERFORATE APEX, INLET END WITH A PLURALITY OF APERTURES THEREIN, EACH OF SAID APERTURES HAVING AN AREA SUFFICIENTLY LARGE TO PROVIDE FOR ENTRY OF THE FLUID TO BE FILTERED IN ITS ORIGINAL CONDITION INTO THE INSIDE OF THE FILTER ELEMENT, SAID FRUSTO-CONICAL CAGE BEING STEPPED TO PROVIDE A PLURALITY OF AXIALLY SPACED ANNULAR SEATS OF SUCCESSIVELY INCREASING DIAMETER IN A DIRECTION AWAY FROM SAID APEX, INLET END; A PLURALITY OF COAXIALLY ALIGNED, JUXTAPOSED POROUS FILTER MEMBERS WITHIN SAID CAGE AND ARRANGED TO RECEIVE FLUID FROM SAID APEX, INLET END OF SAID CAGE, EACH OF SAID FILTER MEMBERS BEING IN CONTACT WITH ITS NEIGHBORING FILTER MEMBER, SAID FILTER MEMBER SUCCESSIVELY INCREASING IN DIAMETER IN A DIRECTION AWAY FROM SAID APEX INLET END OF SAID CAGE, AND HAVING THEIR OUTER PERIPHERIES RECEIVED WITHIN SAID ANNULAR SEATS; AND A PERFORATE CAP MEMBER SECURED TO AND CLOSING THE BASE, OUTLET END OF THE FILTER CAGE, SAID FILTER MEMBERS BEING HELD IN ENGAGEMENT WITH SAID APEX, INLET END OF SAID CAGE, THEIR RESPECTIVE ANNULAR SEATS, AND EACH OTHER BY SAID CAP MEMBER, AND SAID CAP MEMBER HAVING AN INTERNAL ANNULAR PROJECTION THEREON SPACED INWARDLY FROM THE PERIPHERAL EDGE THEREOF, THE OUTER PERIPHERAL EDGE PORTION OF THE FILTER MEMBER ADJACENT SAID CAP MEMBER BEING CLAMPED IN SEALING ENGAGEMENT BETWEEN SAID ANNULAR PROJECTION AND SAID FILTER CAGE.