IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0310626
(2007-08-28)
|
등록번호 |
US-8623206
(2014-01-07)
|
국제출원번호 |
PCT/IL2007/001066
(2007-08-28)
|
§371/§102 date |
20100601
(20100601)
|
국제공개번호 |
WO2008/026208
(2008-03-06)
|
발명자
/ 주소 |
- Wilder, Haim
- Domb, Abraham J.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
3 |
초록
▼
A system, that may be portable, for purifying liquid flowing gravitationally from a source/reservoir into a purified liquid receptacle is described. The system includes a housing with a generally horizontal filtering space. More than one liquid inlet disposed at a top portion of the filter is provid
A system, that may be portable, for purifying liquid flowing gravitationally from a source/reservoir into a purified liquid receptacle is described. The system includes a housing with a generally horizontal filtering space. More than one liquid inlet disposed at a top portion of the filter is provided as well as one or more liquid outlets disposed at a bottom portion. The liquid flows in a generally lateral direction through the liquid treatment medium. Two or more first walls extending upwardly into the filtering space from a bottom wall thereof and ending with an apex are provided inside the device. One or more second walls downwardly extending into the filtering space from a top wall thereof are also provided. Each of the walls defines a closed path. The first and second walls jointly cause the liquid to flow in a curvilinear flow path from the inlet to the outlet. Apexes of the first walls may be defined such that each apex more distal along the liquid flow path is at a lower level than an apex of a first wall more proximal along the flow path. One or more venting ports may be formed at a top wall portion of the housing for releasing gas from the filter.
대표청구항
▼
1. A liquid filter for gravitationally filtering a liquid from a reservoir above the filter into a filtered liquid receptacle below the filter, the filter comprising: a housing having a top and a bottom, the housing containing a generally horizontal filtering space holding a liquid treatment medium,
1. A liquid filter for gravitationally filtering a liquid from a reservoir above the filter into a filtered liquid receptacle below the filter, the filter comprising: a housing having a top and a bottom, the housing containing a generally horizontal filtering space holding a liquid treatment medium, and comprising one or more liquid inlets at a top portion of the filter and one or more liquid outlets at a bottom portion of the filter configured to cause the liquid to flow in a generally lateral direction through the liquid treatment medium; andtwo or more first walls upwardly extending into the filtering space from a bottom wall thereof and each ending with an apex and one or more second walls downwardly extending into the filtering space from a top wall thereof, each of the walls defining a closed path, the first and second walls cause the liquid to flow in a curvilinear flow path from the inlet to the outlet, the apexes of the first walls are such that each apex more distal along the liquid flow path is at a lower level than an apex of a first wall more proximal along the flow path. 2. The filter according to claim 1, wherein at least one of the first or second walls extends into a space formed between two adjacent opposite second or first walls, respectively. 3. The filter according to claim 1, wherein the one or more liquid inlets are located at a central part of the top side of the housing and the one or more liquid outlets are located at a periphery of the bottom side of the housing. 4. The filter according to claim 1, wherein the one or more liquid inlets are located at a periphery of the top side of the housing and the one or more liquid outlets are located at a central part of the bottom side of the housing. 5. The filter according to claim 1, wherein the one or more outlets are located at a bottom wall portion of the housing within confines of an innermost first wall. 6. The filter according to claim 1, wherein the one or more liquid inlets comprise one or more inlet apertures at a periphery of the top side of the housing. 7. The filter according to claim 6, wherein the one or more inlet apertures are symmetrically distributed in the periphery of the top side of the housing to provide for uniform inlet flow. 8. The filter according to claim 1, wherein the first and second walls are concentric. 9. The filter according to claim 1, wherein the first and second walls are coaxial and essentially vertically oriented. 10. The liquid filter according to claim 1, comprising one or more venting ports formed at a top wall portion of the housing for releasing gas from within the filtering space. 11. The filter according to claim 1, wherein the liquid is water and the filter is configured for filtering source water into potable water. 12. The filter according to claim 11, comprising a component that releases a substance into the potable water, the substance having a nutritional or health value or having a water-disinfecting activity. 13. The filter according to claim 12, wherein the substance is iodine. 14. The filter according to claim 13, wherein the iodine is released into the potable water from a porous substrate. 15. The filter according to claim 14, comprising a sorbing substrate for sorbing substances that may be released from the porous substrate into a source water reservoir. 16. The filter according to claim 1, further comprising a flow-delay chamber disposed in the flow path between the liquid inlet and the generally horizontal filtering space. 17. The filter according to claim 16, wherein the flow delay chamber comprises a flow barrier within the chamber or at one or both ends thereof. 18. The filter according to claim 1, further comprising an integral vent for venting an associated potable water reservoir. 19. The filter according to claim 1, configured for use in association with a portable potable water container. 20. A potable water container comprising a liquid filter according to claim 1. 21. A potable water container, comprising: a potable water reservoir comprising a sealable dispensing outlet;a filter according to claim 19, fitted at a base of the container such that the water outlet opens into the potable water reservoir; anda water receptacle for introducing source water and feeding it to the liquid inlet;the container having a water filtering position in which the container is inverted with its base being upwardly oriented for filtering of source water into potable water which is accumulated in the reservoir. 22. The potable water container according to claim 21, further comprising a reservoir vent for venting the reservoir while filtering. 23. The potable water container according to claim 22, wherein the vent is integrally formed within the filter. 24. The potable water container according to claim 21, wherein the water receptacle is fitted to the top portion of the filter and has a collapsed state in which it is compacted adjacent to the top side and an extended state, and wherein the receptacle is opened to the extended state for introducing source water. 25. The potable water container according to claim 24, further comprising a filter cover for fitting over the receptacle in its collapsed state, the cover serving also as a base for the container. 26. The potable water container according to claim 25, wherein the fitting of the filter cover is a screw-type fitting. 27. The potable water container according to claim 25, further comprising a circumferential seal for ensuring a fluid-tight seal between the filter cover and the filter. 28. The potable water container according to claim 27, further comprising a reservoir vent for venting the reservoir while filtering which is integrally formed within the filter, the vent comprising one or more outside openings at an external side wall of the filter such that the opening is sealed by the seal upon fitting of the filter cover of the filter and is opened upon opening of the cover.
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