The present disclosure concerns a filter device for filtering source water for the purpose of obtaining potable water; and further concerns a method for assembly of such a device.
대표청구항▼
1. A water filter defined between a bottom wall, a peripheral wall and a top wall and comprising four concentric compartments including, in respective peripheral to central direction a first, second, third and fourth compartment, defined by divider walls, the filter being configured to have one or m
1. A water filter defined between a bottom wall, a peripheral wall and a top wall and comprising four concentric compartments including, in respective peripheral to central direction a first, second, third and fourth compartment, defined by divider walls, the filter being configured to have one or more water inlets at the top wall leading into the first compartment, a first water passage linking between bottoms of the first and second compartments, a second water passage linking tops of the second and the third compartment, a third water passage linking bottoms of the third and fourth compartments and a fourth water passage between the fourth compartment and a filter outlet formed at the center of said bottom wall; wherein the filter is formed from building blocks that are assembled together to form said water filter and comprise:a base member comprising (i) the bottom wall with the central filter outlet, (ii) the peripheral wall being integral therewith and extending upwardly therefrom, (iii) an integral sleeve formed around said filter outlet and defined by a closed-loop wall and dividing the filter's internal space into a central space and a peripheral space, and comprising (iv) spacer elements formed on the bottom wall and extending upwardly therefrom into the internal space;a sleeve insert formed by closed-loop wall having an integral second bottom perforated element fitted into the peripheral space to divide the peripheral space into the first and second compartments, with said second bottom perforated element defining the bottom end of said second compartment and resting on said spacer elements to define said first water passage;a tubular insert with an integral third bottom perforated element and having a lumen defined between an open bottom and a sealed top and fitted over the filter outlet, to divide the central space into the third and fourth compartments, with said third bottom perforated element defining the bottom end of said third compartment and resting on said spacer elements to define said third water passage; anda lid element sealingly fitted over the base member. 2. The filter of claim 1, wherein the integral sleeve has a sleeve apex and said second water passage is defined above the sleeve apex. 3. The filter of claim 1, wherein the spacer elements are constituted by ribs formed on and projecting from said bottom wall. 4. The filter of claim 1, comprising an integral tube element fitted around the filter outlet and defining a tube lumen upwardly extending from the filter outlet to a tube inlet, which is at a level below said sleeve apex. 5. The filter of claim 1, comprising a porous polisher element fitted within the fourth compartment over the filter outlet. 6. The filter of claim 1, wherein at least one of the second, and third compartments is divided by one or more horizontal perforated divider elements into vertically arranged sub-compartments. 7. The filter of claim 6, comprising a second perforated divider element formed as an annular element fitted into the second compartment. 8. The filter of claim 6, comprising a third perforated divider element formed as an annular element fitted into the third compartment. 9. The filter of claim 1, wherein the top end of at least one of the second and third compartments is fitted with a horizontal top perforated element. 10. The filter of claim 9, comprising a second top perforated element and a third top perforated element that are integrally formed with one another and constituted by a generally disk-shaped element fitted over the second and third compartments. 11. The filter of claim 1, wherein the second and third compartments are vertically divided into respective second bottom and second top sub-compartments and third bottom and third top sub-compartments, and wherein the first compartment comprises a first absorbent,the second bottom sub-compartment comprises a first ion exchanger,the second top sub-compartment comprises a second ion exchanger,the third top sub-compartment comprises an antimicrobial composition,the third bottom sub-compartment comprises a second absorbent, andthe fourth compartment comprises a polisher composition. 12. The filter of claim 1, wherein the second and third compartments are vertically divided into respective second bottom and second top sub-compartments and third bottom and third top sub-compartments, and wherein the first compartment comprises an absorbent,the second bottom sub-compartment comprises a first ion exchanger,the second top sub-compartment comprises a second ion exchanger,the third top sub-compartment comprises a third ion exchanger,the third bottom sub-compartment comprises an antimicrobial composition, andthe fourth compartment comprises a polisher composition. 13. A process for assembly of a compartmentalized water filter defined between a bottom wall, a peripheral wall and a top wall and comprising four concentric compartments including, in respective peripheral to central direction a first, second, third and fourth compartment, defined by divider walls and configured to have one or more water inlets at the top wall leading into the first compartment, a first water passage linking between bottoms of the first and second compartments, a second water passage linking tops of the second and the third compartment, a third water passage linking bottoms of the third and fourth compartments and a fourth water passage between the fourth compartment and a filter outlet formed at the center of said bottom wall; the process comprising: (a) providing a base member that comprises (i) the bottom wall with the central filter outlet, (ii) the peripheral wall integral therewith and extending upwardly therefrom, (iii) an integral sleeve formed around said filter outlet and defined by a closed-loop wall and dividing the filter's internal space into a central space and a peripheral space, and comprises (iv) spacer elements formed on the bottom wall and extending upwardly therefrom into the internal space;(b) inserting a generally cylindrical sleeve insert formed by closed-loop wall and having an integral second bottom perforated element into the peripheral space to cause the second bottom perforated element to rest on said spacer elements to thereby divide the peripheral space into the first and second compartments, with said second bottom perforated element defining the bottom end of said second compartment and said first water passage;(c) inserting a tubular insert with an integral third bottom perforated element and having a lumen defined between an open bottom and a sealed top into the central space and over the filter outlet to cause the third bottom perforated element to rest on said spacer elements to thereby divide the central space into the third and fourth compartments, with said third bottom perforated element defining the bottom end of said third compartment and said third water passage; and(d) introducing water treatment media into one or more of the first, second or third compartments; and(e) sealingly fitting a lid element over the base member. 14. The process of claim 13, wherein (c) precedes (b). 15. The process of claim 13, comprising introducing a porous polisher element over the filter outlet and fitting the lumen of the tubular insert over the polisher element. 16. The process of claim 13, introducing second and third annular perforated horizontal divider elements into the second and third compartments, respectively, to thereby divide each of the second and third compartment into, respective second bottom and second top sub-compartments and third bottom and third top sub-compartments. 17. The process of claim 13, wherein (d) comprises, in any order (d1) introducing a first water treatment medium into said first compartment;(d2) (i) introducing a second water treatment medium into the bottom of the second compartment, (ii) introducing a second horizontal perforated annular divider element into the second compartment to thereby divide the second compartment into a second bottom sub-compartment containing said second water treatment medium and a second top sub-compartment, and (iii) introducing a third water treatment medium into the second top sub-compartment; and(d3) (i) introducing a fourth water treatment medium into the bottom of the third compartment, (ii) introducing a third horizontal perforated annular divider element into the third compartment to thereby divide the third compartment into a third bottom sub-compartment containing said fourth water treatment medium and a third top sub-compartment, and (iii) introducing a fifth water treatment medium into the third top sub-compartment.
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