WO2010091467A1 - Appareil de filtration de l'eau sous pression - Google Patents

Appareil de filtration de l'eau sous pression Download PDF

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Publication number
WO2010091467A1
WO2010091467A1 PCT/AU2010/000146 AU2010000146W WO2010091467A1 WO 2010091467 A1 WO2010091467 A1 WO 2010091467A1 AU 2010000146 W AU2010000146 W AU 2010000146W WO 2010091467 A1 WO2010091467 A1 WO 2010091467A1
Authority
WO
WIPO (PCT)
Prior art keywords
vessel
liquid
outlet
filtration element
filtration
Prior art date
Application number
PCT/AU2010/000146
Other languages
English (en)
Inventor
Razmik Mikaelian
Original Assignee
Aqua Research Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2009900546A external-priority patent/AU2009900546A0/en
Application filed by Aqua Research Pty Ltd filed Critical Aqua Research Pty Ltd
Publication of WO2010091467A1 publication Critical patent/WO2010091467A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/02—Hollow fibre modules
    • B01D63/024—Hollow fibre modules with a single potted end
    • B01D63/0241—Hollow fibre modules with a single potted end being U-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/02—Hollow fibre modules
    • B01D63/024—Hollow fibre modules with a single potted end
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/18—Apparatus therefor
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/002—Processes for the treatment of water whereby the filtration technique is of importance using small portable filters for producing potable water, e.g. personal travel or emergency equipment, survival kits, combat gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/20—Specific housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/20—Specific housing
    • B01D2313/201—Closed housing, vessels or containers
    • B01D2313/2011—Pressure vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/24—Specific pressurizing or depressurizing means
    • B01D2313/243—Pumps
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/006—Cartridges
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/06—Pressure conditions
    • C02F2301/066—Overpressure, high pressure

Definitions

  • a manually pressurized water filtering apparatus including a liquid filtration vessel.
  • the apparatus can allow the filtration of drinking fluid from a vessel using a membrane filter, such as one or more hollow fibre filtration membranes.
  • the membranes may be contained - within, mounted to or form part of a vessel, for example, a jerry can.
  • Filter equipment to treat drinking water includes different types of filter media disposed in a fluid line, for example, media such as activated carbon or zinc and copper.
  • media such as activated carbon or zinc and copper.
  • Activated carbon filters are not capable of filtering certain bacteria such as e.Coli and pseudomonas.
  • Zinc and copper filters cannot substantially eliminate bacteria in un-chlorinated water.
  • a filtering apparatus that is able to be pressurized.
  • the apparatus can be employed for the filtering of a drinkable liquid, and especially water.
  • the apparatus can be highly portable, and can be employed on site to filter a contaminated body of water.
  • the filtering apparatus comprises:
  • a filtration element for location at the outlet, the filtration element comprising one or more hollow filtration membranes; and - a pump positionable with respect to the vessel and able to apply pressure within the vessel such that liquid can be caused to pass from within the vessel, across the filtration element to be filtered thereby, and can then pass out of the vessel via the outlet.
  • the hollow filtration membranes may comprise a plurality of hollow fibre membranes. Such membranes have been found to be highly efficient at filtration and can be easily arranged in a filtration element such as a cartridge. Alternatively, the membranes can be one or more hollow ceramic, woven or metal membranes. In any case, the use of membranes assists in reducing pressure drop during filtering, thereby reducing the amount of pressure required to be applied to the liquid to pass from the vessel and out of the outlet opening.
  • the membranes can have a predetermined pore size (or sizes) for filtering varying sizes of particulate matter in the liquid.
  • the pore size of the membranes can be sufficiently small to filter out particles at a micro level (e.g. less than l.O ⁇ m and down to 0.1 ⁇ m) and even down to an ultra filtration level (e.g. less than 0.1 ⁇ m and down to 0.005 ⁇ m).
  • At least one of the membranes can be selected to be hydrophobic.
  • gas within the vessel can pass across that membrane (i.e. so that gas pressure at the membranes can be released).
  • the pump can be arranged to cause an increase in the pressure of airspace above the liquid in the vessel, which in turn causes the liquid to pass across the filtration element.
  • the pump can cause the liquid to pass across the (or each) membrane and into an interior of the membrane to be filtered thereby, and to then pass from the membrane interior and out of the outlet.
  • the filtration element can comprise a support to facilitate its positioning at the outlet.
  • the support can be adapted for allowing liquid in the vessel to exit via the outlet, and the one or more hollow filtration membranes can be mounted at the support and can extend into the vessel when the support is located at the outlet.
  • the support can comprise a hollow body in which the or each membrane is located, with the body extending from the outlet and into the vessel, the body having an open distal end, whereby liquid passes into the body via the open end and passes across the or each membrane, when the pump applies pressure within the vessel.
  • the body can comprise a head which is positioned within and across the body towards a proximal end thereof. Membrane open ends can be mounted within the head (e.g. the head can be formed around the open ends).
  • the head can define one side of a liquid receipt chamber in the body.
  • a support outlet to release liquid from the support can be located on an opposite side of the liquid receipt chamber.
  • filtered liquid can flow out of the or each membrane open end, into and through the liquid receipt chamber and to the support outlet.
  • head can take the form of a bung (e.g. a polymeric bung) arranged transversely in the support adjacent to the proximal end of the body.
  • the or each hollow fibre membrane can project freely from the head, either in a closed loop with opposite open ends supported in the head, or as a strand having a single open end supported in the head and a closed opposite remote end.
  • the body can be tubular (e.g. of elongate tube such as an inert rigid plastic tube that defines the filtration element as a cartridge).
  • the one or more membranes can be located to extend within the tubular body from its proximal end towards its distal end.
  • the filtration element When the filtration element is in the form of a cartridge it may be freely mountable at the outlet, or can be adapted for being secured thereto in a snap-, friction-, adhesive-, screw- or clamp-fitting.
  • the body comprises one or more laterally projecting flanges at its proximal end.
  • the flange(s) can facilitate mounting and securement of the body to the vessel outlet.
  • the flange(s) in use can rest on a rim defined at the outlet to prevent the support from passing into the vessel interior, and to enable the flanges to be secured against the rim.
  • the flange(s) can be engaged by a cap positionable on the outlet (e.g.
  • the cap can secure the flange(s) against the rim.
  • the cap can incorporate a closable outlet therein (e.g. a pop-up spout such as may be positioned in a user's mouth, etc) for release of filtered liquid from the vessel. In other words, the cap need not be removed to release liquid.
  • the pump can comprise a cylinder that extends into the vessel.
  • a piston can be located in the cylinder to act against fluid therein (e.g. a gas such as air, or an inert gas such as nitrogen, carbon dioxide etc).
  • a one-way valve can be located at an end of the cylinder (i.e. that end which in-use is located in the vessel interior).
  • the cylinder can extend outside of the vessel across a wall thereof. This can allow a drive of some form to be readily connected to the piston; it can also facilitate the draw of fluid (e.g. ambient air) into the cylinder, into the cylinder space in front of the piston.
  • fluid e.g. ambient air
  • the pump may comprise a handle that is located externally of the vessel.
  • the handle can be connected (e.g. via a rod) to a trailing end of piston.
  • the pump can be driven by a hydraulic or pneumatic ram, or by another form of pressurised fluid-activation (e.g. a pressurised gas screw-on cartridge).
  • the air can be compressed in the cylinder and released into the vessel via the one-way valve, to cause the airspace within the vessel to become pressurised, which in turn forces liquid out of the vessel via the filtration element.
  • filtering apparatus for filtering of liquid (e.g. water for drinking).
  • liquid e.g. water for drinking.
  • the apparatus comprises:
  • a filtration element for external mounting to the vessel and connectable to the outlet such that, when liquid within the vessel is caused to pass out of the vessel via the outlet, it is able to pass across the filtration element to be filtered thereby.
  • the filtration element can be retrofitted to an existing vessel.
  • an inlet to the filtration element can be connected to the outlet via a liquid conduit.
  • the outlet may be located near an in-use base of the vessel (e.g. a tap location), and the conduit can then extend (e.g. up) to connect the outlet to the filtration element.
  • an outlet of the filtration element can comprise a liquid conduit (e.g. a flexible straw-like conduit for ready drinking of filtered liquid).
  • the apparatus of the second aspect may further comprise a pump that is able to apply pressure within the vessel such that liquid can be caused to pass from within the vessel, via the outlet and across the filtration element to be filtered thereby.
  • the pump may as defined in the first aspect.
  • the vessel can be provided with mountings located adjacent to the outlet.
  • the mountings can be integrally formed (e.g. by moulding) with the vessel, or they can be attached to an external wall thereof (e.g. by retrofitting an existing vessel).
  • the mountings may take the form of clips or brackets.
  • the filtration element can be as defined in the first aspect.
  • an activated carbon-based filter, or a zinc or copper-based can be used in the filtration element of the second aspect.
  • the filtration element can be releasably connectable to the mountings to secure it with respect to the vessel and the outlet, and may comprise a body as defined in the first aspect (e.g. it may take the form of a cartridge which can be snap-, press- or interference-fitted into the mountings).
  • the vessel can further comprise an inlet for introducing liquid into the vessel.
  • the inlet can be closed with a separate cap.
  • the vessel can comprise a bottle, flask or jerry can.
  • the vessel can comprise a rigid polymeric material, or may be of metal (e.g. if in the form of a jerry can, though plastic jerry cans can be employed).
  • a filtration element for filtering of a water-based liquid.
  • the filtration element comprises a plurality of hollow filtration membranes.
  • the membranes are locatable with respect to the liquid, wherein at least one of the membranes is hydrophobic such that an ambient gas can pass thereacross during filtration of the liquid.
  • gas e.g. air
  • adjacent to the hydrophobic membrane(s) can pass across that membrane, so that gas pressure in the filtration element can be released.
  • the filtration element can be as defined in the first aspect, and can be adapted for use with filtration apparatus as defined in both the first and second aspects.
  • Figure 1 shows a plan view of a first embodiment of liquid filtering apparatus
  • Figure 2 shows a cross-sectional side view of a filtration cartridge for use in such apparatus
  • Figure 3 shows a schematic and magnified cross-sectional side view of a hollow fibre filtration element for use in such apparatus
  • Figure 4 shows a cross-sectional side view of the apparatus of Figure 1 taken along the line C-C;
  • Figure 5 shows a cross-sectional side view of another filtration cartridge for use in such apparatus
  • Figure 6 shows a cross-sectional side view of a second embodiment of liquid filtering apparatus with an externally mounted filtration cartridge
  • Figure 7 shows of a perspective view of a third embodiment of liquid filtering apparatus with an externally mounted filtration cartridge.
  • a water filtering apparatus that can be manually pressurized includes a vessel 20 (e.g. a polymeric squeeze bottle, a jerry can a flask, etc).
  • a vessel 20 e.g. a polymeric squeeze bottle, a jerry can a flask, etc.
  • Mountable to vessel 20 is a support in the form of filter cartridge 1 or I' (i.e. either the cartridge of Figure 2 or 5).
  • the cartridge comprises a tubular body 11 having a lower open inlet 2 and an opposing optional upper outlet 10, with a passageway 13 therebetween.
  • Mountable to vessel 20 is a hand- operated air pump 25 which enables the vessel interior to be pressurised.
  • the pump may alternatively be automatic (e.g. motor-driven hydraulic or pneumatic, or pressurised gas-cartridge operated etc).
  • a carbon filter element (not shown) can be affixed to and across inlet 2 to filter out organics etc.
  • a sealing head in the form of a moulded polymeric bung 4 is positioned in and across passageway 13 to close off the cartridge outlet end from passageway 13 and to define a liquid receipt chamber 5 at that end.
  • the cartridge 1 can also be provided with one or more hydrophobic hollow fibre membranes to allow the release of air out of the cartridge when liquid enters via inlet 2, and to allow liquid in the bottle to enter the passageway 13 (e.g. when the water level in the vessel is low).
  • a plurality of hollow fibre membranes 7 are provided to extend within the body 11 , typically such that the two open ends of each fibre strand 7 are incorporated and supported in the bung 4, the open ends opening onto chamber 5.
  • the cartridge 1 is positionable in a neck 21 of bottle 20 to extend down into the interior of the bottle, as shown in Figures 4.
  • a part of the cartridge is located within the outlet opening of the vessel.
  • the cartridge may sit freely in the neck 21 or be push, screw, adhesively, interference, friction or snap-fitted in neck 21.
  • the cartridge can be clamped against the neck by a skirt 22 of cap 9.
  • ledge 23 of cartridge 1 can rest on the upper end 24 of neck 21 to locate and prevent the cartridge from falling into vessel 20.
  • Ledge 23 can be a continuous annular flange or can be defined by one or more discrete projections.
  • a hand-operated air pump 25 such that the vessel can be pressurized.
  • the hand-operated air pump 25 is positionable in a neck 26 of vessel 20 to extend down into the interior of the vessel, as shown in Figures 4.
  • a substantial part of the hand-operated air pump 25 is located within the neck and vessel.
  • the hand-operated air pump 25 may be screwed in neck (inlet opening) 26 or snap-fitted in neck 26.
  • the hand-operated air pump 25 can also be formed integrally with vessel 20, or may be interchangeable with a variety of vessels.
  • the hand-operated air pump 25 is provided with a one way valve 27 to allow passage of air from the hand-operated air pump 25 to the inside of vessel 20. When the vessel 20 is pressurized, valve 17 restricts passage of air out of vessel 20.
  • the hand-operated air pump 25 is further provided with a handle 28 connected via a rod 28' to a piston 29 that reciprocates with the pump chamber to pressurize as well as draw air therein.
  • Cap 9 has an optional spout 14 that defines a passageway 12 therethrough.
  • the spout 14 can be provided with a known manual closure valve (not shown).
  • the passageway 12 aligns with outlet 10 to provide for liquid transfer therebetween.
  • the skirt 22 is typically internally threaded for mating with an outlet thread of neck (outlet opening) 21, to screw -clamp cartridge ledge 23 onto neck 21.
  • FIG. 3 it can be seen schematically how liquid travels across and into each fibre 7 as indicated by arrows AA, and is then delivered into the chamber 5 ( Figure 4) from the open ends of each fibre as indicated by arrows BB.
  • liquid passes across the fibre membrane wall (to be filtered thereby) and into an interior of each fibre, and then out of the open ends and into chamber 5.
  • the individual fibres 7 are typically formed of polyethylene, polypropylene or the like (as described below).
  • the fibres 7 are partly or wholly immersed in a liquid 6 ( Figure 3) requiring filtration, the liquid being located in vessel 20.
  • the liquid flows to fibres 7 via inlet 2 and passageway 13, although these fibres can also hang freely in the vessel.
  • Pressuring of vessel 20 interior causes liquid to pass through the pores of the fibres 7 to filter most if not all of suspended solids and organisms in the liquid, with filtering occurring in, on or at the pores of the fibre. Filtered liquid exits the hollow fibre upper ends and passes into chamber 5, then out of the cartridge via outlet 10, and then into spout 14 for release there from.
  • a variation 1 ' in the construction of the cartridge is depicted.
  • a plurality of individual fibre strand lengths 15 can be provided, each having a closed (sealed) lower end, as facilitated by closure 16 (e.g. a polymeric disc or a carbon filter disc, clamp etc.).
  • closure 16 e.g. a polymeric disc or a carbon filter disc, clamp etc.
  • a porous carbon filter element typically employing activated carbon
  • the filter element can be mounted in chamber 5 or at outlet 10, or in spout 14 across passageway 12.
  • flat filter membranes e.g. of ceramic or metal
  • can be employed e.g.
  • the cartridge can be formed or provided integrally with a vessel, flask or a variety of other liquid holding vessels.
  • the cartridge can be provided and sold separately, for positioning in a variety of vessel types.
  • the cartridge can also be washed after use for subsequent re-use.
  • Figures 6 and 7 show alternative filtering apparatus for filtering of e.g. water for drinking.
  • the apparatus in each of Figures 6 and 7 comprises a vessel 30, 30' (e.g. a jerry can or flask, etc) for holding the liquid.
  • the vessel has a lower (e.g. a tap) outlet 32.
  • a filtration element such as a cartridge 1 or 1 ' can be externally mounted to the vessel via one or mountings 34, 36.
  • the mountings 34, 36 are shown in the form of clips or brackets in Figure 7 for snap-, press- or interference- fitting of the cartridge into the mountings.
  • the mountings can be integrally formed with the vessel (e.g. by moulding) as in Figure 7, or they can be attached to an external wall thereof (e.g. by retrofitting an existing vessel) as in Figure 6. This external mounting of the cartridge allows it to be readily interchanged. Also, the cartridge can be retrofitted to an existing, unmodified vessel.
  • the cartridge 1 or 1' is connectable to the outlet via a conduit 38 that extends up to connect the outlet with the cartridge.
  • a conduit 38 that extends up to connect the outlet with the cartridge.
  • the cartridge 1 or 1 ' can have an outlet conduit 40, such as a flexible straw-like conduit 40' fitted thereto, for ready drinking of filtered liquid by a user.
  • an outlet conduit 40 such as a flexible straw-like conduit 40' fitted thereto, for ready drinking of filtered liquid by a user.
  • the vessel 30' is shown with a separate water fill inlet 42 closed by a removable cap.
  • the hollow fibre membranes are ultra micro-filtration membranes formed from polyethylene (or similar) in a melt spinning and drawing process, such as those produced by Mitsubishi Rayon Co. Ltd.
  • Such membranes have a pore size located between the micro filtration range (1.O ⁇ m - 0.1 ⁇ m) and the ultra filtration range (0.1 ⁇ m - 0.005 ⁇ m) and can filter out fine particles and all bacteria including colloidal silica, bacterial virus, oil emulsions, latex emulsions, cholera bacillus, typhoid bacillus, Escherichia coli, staphylococcus, Cryptosporidium, Giardia and Echinococcus granulosus.
  • such membranes are also treated to be hydrophilic (e.g. covered with a hydrophilic polymer) so as to be wettable in water.
  • the ceramic filter is a ceramic element having a microporous structure, such as those manufactured by British Berkefeld or Foseco International. Such filters typically filter particles down to around 0.1 ⁇ m in size. Silver metal can also be dispersed throughout the ceramic to prevent the growth of bacteria. Ceramic filter materials include porous clays, ceramic foam filters, silicon carbide and recrystallised silicon carbide materials.
  • the metal filter is a sintered metal filter or a laser cut metal filter.
  • These can be in the form of a tube filter defined by a sintered 5 -layer plate, metal powder or metal fiber such as those manufactured by Jeongsan Enterprise Lie, or a metal filter cartridge such as those manufactured by Hanyang Engineering Co. Iron cellular filters and aluminium light weight foam filters such as those manufactured by Foseco International may also be employed.

Abstract

La présente invention concerne un appareil de filtration destiné à filtrer un liquide tel que l'eau. L'appareil comprend une cuve (20, 30) destinée à contenir le liquide. La cuve possède un orifice de sortie (21). Un élément de filtration (1, 1') se trouve au niveau de l'orifice de sortie et s'étend dans la cuve située au niveau de l'orifice de sortie. Une pompe (25) peut être positionnée relativement à la cuve et peut appliquer une pression à l'intérieur de la cuve de manière à faire sortir le liquide de la cuve, à le faire traverser l'élément de filtration pour qu'il soit ainsi filtré, et à le faire sortir de la cuve via l'orifice de sortie.
PCT/AU2010/000146 2009-02-11 2010-02-11 Appareil de filtration de l'eau sous pression WO2010091467A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2009900546 2009-02-11
AU2009900546A AU2009900546A0 (en) 2009-02-11 Manually Pressurized Water Filtering Apparatus

Publications (1)

Publication Number Publication Date
WO2010091467A1 true WO2010091467A1 (fr) 2010-08-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2010/000146 WO2010091467A1 (fr) 2009-02-11 2010-02-11 Appareil de filtration de l'eau sous pression

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WO (1) WO2010091467A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2473836A (en) * 2009-09-24 2011-03-30 John Griffith Water filter
GB2493033A (en) * 2011-09-12 2013-01-23 Pritchard Ip Ltd Water container
BE1019949A3 (nl) * 2010-12-29 2013-03-05 Laureyssens Dirk Watercontainer met filtersysteem.
WO2013153370A1 (fr) * 2012-04-09 2013-10-17 Pritchard Ip Limited Conteneur à eau et filtre à fibres creuses associé
EP3907189A1 (fr) 2020-05-08 2021-11-10 Brita GmbH Dispositif de filtration de liquides
EP4056254A1 (fr) 2021-03-11 2022-09-14 Brita GmbH Cartouche de filtre
DE102020131367B4 (de) 2020-11-26 2023-03-16 Maximilian Medwed Transportable Vorrichtung zur druckbeaufschlagten Wasseraufbereitung, Filter sowie Trinkbehälter

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FR2539048A1 (fr) * 1983-01-11 1984-07-13 Diffusion Materiels Fluides Systeme de filtre pour eau potable a utilisation intermittente adapte notamment sur un reservoir transportable
US4477347A (en) * 1983-06-21 1984-10-16 Sylva Francis W Portable water purifier
US4636307A (en) * 1983-09-16 1987-01-13 Mitsubishi Rayon Co., Ltd. Hollow-fiber filtering module and water purification device utilizing it
US20070045169A1 (en) * 2005-08-23 2007-03-01 Powell James D Portable filtered drinking water system
US20080087596A1 (en) * 2006-10-13 2008-04-17 Filtrex Holdings Pte Ltd. Universal water purifier unit assembly device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2539048A1 (fr) * 1983-01-11 1984-07-13 Diffusion Materiels Fluides Systeme de filtre pour eau potable a utilisation intermittente adapte notamment sur un reservoir transportable
US4477347A (en) * 1983-06-21 1984-10-16 Sylva Francis W Portable water purifier
US4636307A (en) * 1983-09-16 1987-01-13 Mitsubishi Rayon Co., Ltd. Hollow-fiber filtering module and water purification device utilizing it
US20070045169A1 (en) * 2005-08-23 2007-03-01 Powell James D Portable filtered drinking water system
US20080087596A1 (en) * 2006-10-13 2008-04-17 Filtrex Holdings Pte Ltd. Universal water purifier unit assembly device

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2473836A (en) * 2009-09-24 2011-03-30 John Griffith Water filter
BE1019949A3 (nl) * 2010-12-29 2013-03-05 Laureyssens Dirk Watercontainer met filtersysteem.
GB2493033A (en) * 2011-09-12 2013-01-23 Pritchard Ip Ltd Water container
WO2013038178A1 (fr) * 2011-09-12 2013-03-21 Pritchard Ip Limited Récipient à eau
GB2493033B (en) * 2011-09-12 2013-06-19 Pritchard Ip Ltd A water container
AU2012307112B2 (en) * 2011-09-12 2017-05-25 Lifesaver Ip Limited A water container
CN103842297B (zh) * 2011-09-12 2016-08-17 普里查德知识产权有限公司 水容器
CN103842297A (zh) * 2011-09-12 2014-06-04 普里查德知识产权有限公司 水容器
CN104284708A (zh) * 2012-04-09 2015-01-14 普里查德知识产权有限公司 水容器及其中空纤维过滤器模块
GB2501822A (en) * 2012-04-09 2013-11-06 Pritchard Ip Ltd Container for water and a filter therefor
WO2013153370A1 (fr) * 2012-04-09 2013-10-17 Pritchard Ip Limited Conteneur à eau et filtre à fibres creuses associé
EP3907189A1 (fr) 2020-05-08 2021-11-10 Brita GmbH Dispositif de filtration de liquides
WO2021223904A1 (fr) 2020-05-08 2021-11-11 Brita Gmbh Dispositif de filtration pour liquides
DE102020131367B4 (de) 2020-11-26 2023-03-16 Maximilian Medwed Transportable Vorrichtung zur druckbeaufschlagten Wasseraufbereitung, Filter sowie Trinkbehälter
EP4056254A1 (fr) 2021-03-11 2022-09-14 Brita GmbH Cartouche de filtre
WO2022189399A1 (fr) 2021-03-11 2022-09-15 Brita Gmbh Cartouche filtrante

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