GB2197647A - Water treatment device - Google Patents
Water treatment device Download PDFInfo
- Publication number
- GB2197647A GB2197647A GB08718869A GB8718869A GB2197647A GB 2197647 A GB2197647 A GB 2197647A GB 08718869 A GB08718869 A GB 08718869A GB 8718869 A GB8718869 A GB 8718869A GB 2197647 A GB2197647 A GB 2197647A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- water
- well
- water treatment
- container
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- 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
- C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
-
- 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
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/04—Location of water treatment or water treatment device as part of a pitcher or jug
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
A water treatment device comprises upper (14) and lower (10) water containers. A well (21) formed in the bottom of the upper container (14) contains a chamber (25) which houses a water treatment agent. The well (21) extends into the lower container (10) when the upper container (14) is mounted above the lower container (10), and the chamber (25) in the well has grids, at its upper and lower ends, the grids permitting passage of water from the upper end of the chamber to the lower end thereof. A passageway (37) for water formed between the chamber (25) and the well (21) permits a flow of water from the bottom of the chamber (25) to a higher level before allowing a discharge of water into the lower container. An advantage of such an arrangement is that, by preserving a high water level in the well (21) containing the water treatment chamber (25), the water treatment agent is maintained wet. <IMAGE>
Description
IMPROVEMENTS IN OR RELATING TO WATER TRENTIENT DEVICES
This invention relates to water treatment devices and is particularly applicable to devices for domestic use for producing and holding a small number of litres of treated water at a time.
The invention provides a water treatment device comprising upper and lower water containers, the upper container having a well formed in the bottom thereof which extends into the lower container, a chamber containing a water treatment agent disposed in the well, the chamber having upDer and lower arid form end closures to permit water to pass through the chamber from the upper to the lower end thereof, a passagewavv for water being formed between the chamber and the well from the bottom of the chamber to the upper end of the chamber, the passage being closed adjacent the upper end of the chamber to the upper container and a port or ports being provided in the wall of the well adjacent the upper enC thereof to permit water flow into the lower container from the passageway, whereby water may flow from the upper container down through the chamber and thence up through the passageway to the port orports adjacent the top of the well and into the lower container to provide a supply of treated water in the lower container, the arrangement of the port or ports adjacent the upper end of the well preserving a water level in the well adjacent the upper end of the water treatment chamber to maintain the water treatment agent wet.
The well may have a recess encircling the upper end providing an upwardly facing step and an annular side wall extending from the step to the bottom of the upper container, the chamber having an encircling rim at its upper end which engages the side wall of the recess above the step and the port or ports from the passage between the well and chamber wall being formed in the step.
More specifically the side wall of the recess may taper towards the shoulder to provide a convergent seat for the rim of the upper end of the chamber in which the rim is an interference fit to support the rim above the shoulder at the bottom of the recess.
In any of the above arrangemenrts the well ma be o: circular cross-section and the chamber max he of circular cross-section of smaller outer diameter than the inner diameter of the well whereby an annular passage is provided between the chamber wall and side of the well from the bottom of the chamber to said well ports in the side of the well adjacent the top of the chamber.
Also in any of the above arrangements the end closure at the top of the chamber may be of conical form comprising an upper set of radial ribs extending from a centre toa rim of the top and a lower set of radial ribs mav be spaced below the gaps between the upper set of ribs to provide narrow slits between the upper and lower respective ribs through which water may pass into the upper end of the chamber into the water treatment agent therein.
The bottom end closure of the chamber man comprise a first set of parallel spaced ribs extending across the chamber and a second set of parallel ribs extending across the chamber parallel to and spaced below the gaps in the first set of chamber to provide narrow slits between the respective upper and lower ribs for water to pass from the chamber to the part of said passage elo the chamber and thence into the passage between the sides of the chamber and well.
Tne port or ports in the sioes of the well adjacent tne top of the chamber for water to flow from the passage between the well and chamber into the lower container may comprise an elongate slot or slots in the wall of the well.
In any of the above arrangements the lower container may comprise a jug having a spout on one side and a nandle on the other side and the upper container is mounted on the periphery of the jug and is mounted to pivot on the periphery of the jug adjacent the handle with a lever member on the upper container adjacent the pivot whereby the upper container may be pivoted with respect to the lower container as the latter is tipped to pour the contents from the lower container to maintain the upper coat' ner witn its water contained therein substantially level Tiiis invention also provides a water treatment aevice as defined above, wherein the chamber wall is formed witn a passageway for water to flow from the bottom of tle CllaRDelr to tne upper end thereof.
For example tne chamber may have an inner wall and an outer sleeve encircling the outer wall and spaced therefrom at at least one location around the sleeve to form a passageway extending from the bottom of tne chamber to the top of the sleeve.
ore specifically the chamber wall may be formed with a vertical channel extending from the lower to the upper ends thereof and tne sleeve may extend around the chamber across the channel to provide a passageway between the channel and sleeve for water flow from the bottom to the top of the channel .
Preferably the lower end of the sleeve is closed by an end wall spaced below the bottom wall of the chamber to provide a collection area for water exiting from the bottom of the chamber to pass into the passageway to flow to the top of the chamber.
The following is a description of specific embodiments of the invention, reference being made to the accompanying drawings in which:
Figure 1 is a side elevation view of a water treatment device according to the invention;
Figure 2 is a detailed internal view of part of the device shown in section and illustrating a chamber of the device containing a water treatment agent;
Figure is a plan view of the chamber of Figure
2;
Figure 4 is an underplan view of the chamber; Figure 5 is an elevation view of an alternative form of chamber for water treatment agent for the device illustrated in Figures 1 to 4 of our U.A.
Patent Application No.8619581; Figure 6 is a section on the lines 6 - 6 on
Figure 5;
Figure 7 is a plan view of the chamber sho#n in
Figure 5;
Figure 8 is an underplan view of the chamber of
Figure 5 with an outer sleeve of tne chamber removed; and
Figure 9 is an elevation view of the chamber with the sleeve removed.
Referring firstly to Figure 1 of the drawings there is shown a water treatment device comprising a lower container in the form of a jug 10 which is of genrally rectangular form as view in plan witit a smoothly rounded corners and is formed in hard transparent plastics. The jug has a spout 11 formed in one corner thereof and a handle 12 is moulded integrally with the opposite corner of the jug and is provided with a coloured plastics trim 13.
An upper container 14 of similar shape in plan to the jug 10 is located on top of the jug, the underisde of the container 14 having a seat 15 which bears on the upper peripheral edge of the jug. The container 14 is formed with an obliquely downwardly extending cover plate 16 for the open top of the spout il of the jug. At the opposite side of the container, the container wall is formed with an upwardly inclined. dresser member 17 having side cheeks 18.The presser member 17 has a spaced pair of lugs indicated in dotted outline at 19 which engage the upper edge of the jug to provide a pivot point for the upper container 14 with respect to the jug to enable the container to be held horizontal by pressing the member 17 when the jug is tilted downwardly to discharge the contents frown the spout 11 as descirbed later.
The container 14 has a bottom wall 20 which has 2n integral closed well 21 extending from the lower end thereof down into the jug 10. The well will be described in greater detail with reference to
Figures 2 to 4. The well 21 has a recess indicated at 22 between its upper end and the bottom wall 20 of the container, the recess having an upwardly facing shoulder 23 and a convergent side wall 24. A chamber
25 is mounted in the well and contains a water treatment agent. For example the water treatment agent may comprise three components, namely activated carbon, and anionic exchange resin and a cationic exchange resin.The anionic resin may be in the form of a strong base resin in a carbonate form such as 'Purolite A 4i0" and the cat ionic exchange resin may be a hydrogen exchange resin such as Purolite C 100
H. Typically, the components may be in the proportion
of li grammes of activated carbon to 30 grammes of
Purolite C 100 H to 40 grammes of Purolite A 450. The upper end of the chamber has an out-turned rim 26
formed with an outwardly and upwardly extending
annular flange 27 which is dimensioned to lodge in
the convergent wall 24 to hold the rim 26 well above
the shoulder 23 at the bottom of the recess as can be
seen in Figure 2.
The chamber 25 has a cap 29 having a centre 30 and peripheral rine 31 joined together by an upper set of radial ribs 3 spaced apart from one another and a correspondinn lower set of radial ribs 33 disposed opposite the gaps between the upper ribs to form @arrow slots between the respective upper and lower ribs through which water may pass from the upper container into the chamber 25. The lower end of the chamber 25 which is spaced above the bottom of the pli 21 has a nrid formed integrally therein compr-sin.g a first set of ralleI ribs 3A extending across the chamber botton spaced apart from one another n supported by a small number of transversely extending members 35. Below the ribs 34 is a second set of ribs 36 which extends parallel to the first ribs and below the gaps between the first ribs form narrow slots between the upper and lower ribs through which water can percolate whilst providing adequate structure for supporting the water treatment agent in the chamber 25. Water can thus pass through the chamber flowing over the water treatment agent and thence issue from the bottom end of the chamber.Theouter diameterof the chamber is somewhat smaller than the inner diameter of the well to provide an annular passage 37 extending from the bottom of the chamber upto the top of the well the top of the passage is closed by the engagement of the flange 27 at the top of the chamber with the convergent side wall 24 of the well. The step 23 adjacent the top of the well is formed with a plurality of elongate part annular slots 38 to permit water flowing to the top of the passage to flow into the lower jug 10 to provide a supply of treated water in the lower jug.
The upper container is closed by a lid 40 which fits around the periphery of the container and is formed with a raised central knob to facilitate removal of the lid.
In use the upper container is filled with water to be treated and placed on the jug. The water slowly passes from the container into and through the water treatment chamber and thence from the lower end thereof up round the chamber and through the slots in the step adjacent the top of the well and into the jug.When sufficient water has accumulated in the jg, the device is lifted by the handle and as the jug is tilted downardly to pour water fron the spout, the presser member of the container is pressed downwardly to maintain the upper container horitontally to prevent water from being inadvertently discharged from the upper container.When the required amount of water has been discharged from the jug, the jug is turned upright and treated water can continue to flow from the upper end of the well into the jug to replenish the water held in the jug. As and when required, further water can be added to the upper container.It will be understood that since the outlets adjacent the upper end of the well into the lower container are located adjacent the upper end of the chamber, water will be retained in the well to keep the water treatment agent in the chamber immersed.
It will be appreciated that tne constituents of the water treatment chamber can be varied to suit the water to be treated and to remove impurities required. Tne water treatment agent described specifically above removes nitrates and removes chlorides whilst allowing some minerals to remain and at the same time increases the carbon-dioxide content and acidity of the water. If other contents such as the minerals in the water are to be removed, the water treatment agent is varied accordingly.
Figures 5 to 9 illustrate a modified form of the chamber 5 containing a water purification agent to be locales in the wall 21 of the water treatment device described an il'astrated in Figures 1 to 4.
In that ewaodiment the outer diameter of the chamber 25 is somew@at less than the inner diameter of the well 21 to create an annular passage 37 between the chamber wall an side of the well through which water exiting from tne bottom of the chamber can pass up around tne chamber and thence to tne outlet 38 adjacent tne tor of tne well to flow into the jug 10 of tne device. In accordance witn the present embodimen#. the chamber wall 25 is formed with a vertical c#arne:i DO extending down the outer side of the wall from a location close to the top of the chamber to tne bottom of the chamber. The chamber is received in a thin walled cup shaped housing 51 having a side wall wnich tapers slightly towards its lower end to provide a jamming fit with the outer wall of the chamber 25. The housing is closed at its lower end by a bottom wall 52 which is spaced from the grid 34/35/36 at the bottom of the chamber 25 to povide a cavity 53 to receive treated water from the lower end or tne chamber. Tne upper end of the side wall of the housing 51 terminates short of the upper end of the chamber and below the upper end of the channel 50 in the side wall of the chamber to provide an opening 55 at the upper end of the channel. Thus water collecting in a cavity 53 at the bottom end of the chamber can flow upwardly through the passage 54 and exit through the aperture 55 and thence flow through the apertures 38 in step 23 at the top of the wall and pass into the jug of the water treatment device as previously described. The external dimensioning of the housing 51 for the chamber may be such tnat the housing is an interference fit in the well to prevent water flowing between the outer side of the housing and the wall of the well and accumulating at the bottom of the well beneath the base of the housing.
Claims (14)
1. 4 water treatment device comprising upper and lower water containers, the upper container having a well formed in the bottom thereof which extends into the lower container, a chamber containing a water treatment agent disposed in the well the chamber having upper and lower grid form end closures to permit water to pass through the chamber from the upner to the lower end thereof, a passageway for water being formed between the chamber and tWe well from the bottom of the chamber to the upper end of the chamber. the passage being closed adjacent the upper end of the chamber to the upper container and a port or ports being provided in the wall of the wel 1 adjacent the upper end thereof to permit water flow into the lower container from the passagewav, whereby water may flow from the upper container down through the chamber and thence up through the passageway to the port orports adjacent the top of the well and into the lower container to provide a supply of treated water in the lower container, the arrangement of the port or ports adjacent the upper end of the well preserving a water level in the well adjacent the upper end of the water treatment chamber to maintain the water treatment agent wet
2.A water treatment device as claimed in claim 1 wherein the well has a recess encircling the upper end providing an upwardly facing step and an annular side wall extending from the step to the bottom of the upper container, the chamber having an encircling rim at its upper end which engages the side wall of the recess above the step and the port or ports from the passage between the well and chamber wall being formed in the step.
3. A water treatment device as claimed in claim 2 wherein the side wall of the recess tapers towards the shoulder to provide a convergent seat for the rim of the upper end of the chamber in which the rim is an interference fit to support the rim above the shoulder at the bottom of the recess.
4. X water treatment device as claimed in any of the preceding claims wherein the well is of circular cross-section and the chamber is of circular cross-section of smaller outer diameter than the inner diameter of the well whereby an annular passage is provided between the chamber wall and side of the well from the bottom of the chamber to said well ports in the side of the well adjacent the top of the chamber.
5. A water treatment device as claimed in any of the preceding claims wherein the end closure at the top of the chamber is of conical form comprising an upper set of radial ribs extending from a centre to a rim of the top and a lower set of radial ribs spaced below the gaps between the upper set of ribs to provide narrow slits between the upper and lower respective ribs through which water may pass into the upper end of the chamber into the water treatment agent therein.
6. A water treatment device as claimed in any of the preceding claims wherein the bottom end closure of the chamber comprises a first set of parallel spaced ribs extending across the chamber and a second set of parallel ribs extending across the chamber parallel to and spaced below the gaps in the first set of chamber to provide narrow slits between the respective upper and lower ribs for water to pass from the chamber to the part of said passage below the chamber and thence into the passage between the sides of the chamber and well.
7. A water treatment device as claimed in any of the preceding claims wherein the port or ports in the sides of the well adjacent the top of the chamber for water to flow from tne passage between the well and chamber into the lower container comprise an elongate slot or slots in the wall of the well.
b. A water treatment device as claimed in anv of the preceding claims wherein the lower container comprises a jug having a spout on one sloe and a handle on the other side and the upper container is mounted on the periphery of the jug adjacent the handle with a lever member on the upper container adjacent the pivot whereby the upper container may be pivoted with respect to the lower container as the latter is tipped to pour the contents from the lower container to maintain the upper container with its water contained therein substantially level.
9. A water treatment device as claimed in any of claims 1 to 8 wnerein the chamber wall is formed witn a passageway for water to flow from the bottom of the chamber to the upper end thereof.
10. A device as claimed in claim 9, wherein the chamber has an inner wall and an outer sleeve encircling the outer wall and spaced therefrom at at least one location around the sleeve to form a passageway extending from the bottom of the chamber to the top of the sleeve.
11. A device as claimed in claim 10, wherein the chamber wall is formed with a vertical channel extending from the lower to the upper ends thereof and the sleeve may extend around the chamber across the channel to provide a passageway between the channel and sleeve for water flow -from the bottom to the top of the channel
12. A device as claimed in claim 11 or claim 10 wherein, the lower end of the sleeve is closed by an end wall spaced below the bottom wall of the chamber to provide a collection area for water exiting from the bottom of the chamber to pass into the passageway to flow to the top of the chamber.
13. A water treatment. device substantially as described with reference to and as illustrated in
Figures 1 to 4 of tne accompanying drawings.
14. A water treatment device substantially as described with reference to and as illustrated in
Figures 5 to 9 of the accompanying drawings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB868619581A GB8619581D0 (en) | 1986-08-12 | 1986-08-12 | Water treatment devices |
| GB878706008A GB8706008D0 (en) | 1987-03-13 | 1987-03-13 | Water treatment devices |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8718869D0 GB8718869D0 (en) | 1987-09-16 |
| GB2197647A true GB2197647A (en) | 1988-05-25 |
| GB2197647B GB2197647B (en) | 1990-03-07 |
Family
ID=26291164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8718869A Expired - Fee Related GB2197647B (en) | 1986-08-12 | 1987-08-10 | Improvements in or relating to water treatment devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2197647B (en) |
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0324634A2 (en) * | 1988-01-15 | 1989-07-19 | Ara Coffee Club Limited | Brewing apparatus for brewing tea or coffee including water purification apparatus |
| EP0349315A1 (en) * | 1988-06-29 | 1990-01-03 | Addis Limited | Filter cartridges and filter assemblies |
| EP0350884A2 (en) * | 1988-07-05 | 1990-01-17 | Surex-Wasseraufbereitungsanlagen Gesellschaft Mit Beschränkter Haftung | Water filtering device with a filter element |
| EP0365887A2 (en) * | 1988-10-28 | 1990-05-02 | Oxyphen AG | Filter cartridge for a liquid-filtration apparatus, especially for water filters |
| GB2234967A (en) * | 1989-08-01 | 1991-02-20 | Ass Mills Inc | Gravity feed water purification cartridge |
| EP0498913A1 (en) * | 1991-02-15 | 1992-08-19 | LEIFHEIT Aktiengesellschaft | Household water filter |
| WO1992019552A1 (en) * | 1991-05-01 | 1992-11-12 | Waymaster Limited | Improvements in or relating to water treatment devices |
| WO1996031440A1 (en) * | 1995-04-07 | 1996-10-10 | Matscorp Ltd. | Water filtration cartridge |
| US5665224A (en) * | 1992-08-14 | 1997-09-09 | William Levine Limited | Filter jug |
| WO1997041066A2 (en) * | 1996-04-30 | 1997-11-06 | Recovery Engineering, Inc. | Water treatment device with fill-counting cartridge |
| WO1998032705A1 (en) * | 1997-01-28 | 1998-07-30 | Brita Water Filter Systems Limited | A water filter jug |
| US6159363A (en) * | 1998-04-30 | 2000-12-12 | Corning Incorporated | Water carafe filter cartridge |
| WO2001019733A1 (en) * | 1999-09-14 | 2001-03-22 | Windmill Holdings Limited | A water filter cartridge |
| US6290847B1 (en) | 1998-12-17 | 2001-09-18 | Corning Incorporated | Gravity-flow water filtration device |
| WO2002022233A1 (en) * | 2000-09-12 | 2002-03-21 | Kari Aalto | Apparatus for purifying water |
| US6405875B1 (en) | 1998-12-18 | 2002-06-18 | Corning Incorporated | Water filtration device and method |
| US6454941B1 (en) | 1998-12-17 | 2002-09-24 | Corning Incorporated | Gravity-flow water filtration device |
| WO2005118104A1 (en) * | 2004-05-28 | 2005-12-15 | Brita Gmbh | Apparatus for filtering liquids |
| WO2005118481A1 (en) * | 2004-05-28 | 2005-12-15 | Brita Gmbh | Filter cartridge and device for filtering liquids |
| WO2006052161A1 (en) * | 2004-11-10 | 2006-05-18 | Gennadiy Nikolaevich Sednev | Filtering cartridge |
| WO2007073822A1 (en) * | 2005-12-23 | 2007-07-05 | Laica S.P.A. | Filter cartridge for jugs |
| JP2008542005A (en) * | 2005-05-25 | 2008-11-27 | ライカ・エス・ピー・エー | Filtration equipment for filtering water and liquids in general |
| EP2022760A3 (en) * | 2007-07-16 | 2010-11-17 | Bwt Ag | Filter cartridge for a water filtration device |
| US8025802B2 (en) | 2004-05-28 | 2011-09-27 | Brita Gmbh | Filter cartridge and apparatus for the filtration of liquids |
| CN103523942A (en) * | 2012-07-04 | 2014-01-22 | 杜也兵 | Method for connecting filter drum and built-in filter liner of water purifier in rotary inserting and rotary lifting manner, and built-in filter liner |
| RU2625113C1 (en) * | 2016-05-20 | 2017-07-11 | Закрытое Акционерное Общество "Аквафор Продакшн" (Зао "Аквафор Продакшн") | Filtering module |
| WO2018034794A1 (en) * | 2016-08-16 | 2018-02-22 | Bonvi Water, Inc. | Water container with floatable filter system and method |
| US11033841B1 (en) | 2012-05-25 | 2021-06-15 | Plenty Company, LLC | Expandable water filter reservoir |
| RU2772774C1 (en) * | 2021-08-05 | 2022-05-25 | Общество С Ограниченной Ответственностью "Аквафор" (Ооо "Аквафор") | Filter module |
| WO2023014243A1 (en) * | 2021-08-05 | 2023-02-09 | Общество С Ограниченной Ответственностью "Аквафор" (Ооо "Аквафор") | Filter module |
| US11596882B2 (en) | 2019-05-28 | 2023-03-07 | Plenty Company, LLC | Water pitcher with float and underside filter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB654012A (en) * | 1948-10-04 | 1951-05-30 | Arthur James Simpson | Improvements in or relating to filtering devices |
| GB662662A (en) * | 1949-04-20 | 1951-12-12 | Banham Hermanos Y Company | Apparatus for disinfecting water |
| GB1552559A (en) * | 1976-09-27 | 1979-09-12 | Foremost Mckesson | Apparatus and method of disinfection of drinking water |
| US4578187A (en) * | 1984-06-29 | 1986-03-25 | Alhaeuser Erich | Ion exchange apparatus to improve the quality of potable water |
-
1987
- 1987-08-10 GB GB8718869A patent/GB2197647B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB654012A (en) * | 1948-10-04 | 1951-05-30 | Arthur James Simpson | Improvements in or relating to filtering devices |
| GB662662A (en) * | 1949-04-20 | 1951-12-12 | Banham Hermanos Y Company | Apparatus for disinfecting water |
| GB1552559A (en) * | 1976-09-27 | 1979-09-12 | Foremost Mckesson | Apparatus and method of disinfection of drinking water |
| US4578187A (en) * | 1984-06-29 | 1986-03-25 | Alhaeuser Erich | Ion exchange apparatus to improve the quality of potable water |
Cited By (52)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0324634A3 (en) * | 1988-01-15 | 1989-09-06 | Ara Coffee Club Limited | Water purification apparatus |
| EP0324634A2 (en) * | 1988-01-15 | 1989-07-19 | Ara Coffee Club Limited | Brewing apparatus for brewing tea or coffee including water purification apparatus |
| AU611040B2 (en) * | 1988-06-29 | 1991-05-30 | Addis Limited | Filter cartridges and filter assemblies |
| EP0349315A1 (en) * | 1988-06-29 | 1990-01-03 | Addis Limited | Filter cartridges and filter assemblies |
| EP0350884A2 (en) * | 1988-07-05 | 1990-01-17 | Surex-Wasseraufbereitungsanlagen Gesellschaft Mit Beschränkter Haftung | Water filtering device with a filter element |
| EP0350884A3 (en) * | 1988-07-05 | 1990-06-27 | Surex-Wasseraufbereitungsanlagen Gesellschaft Mit Beschränkter Haftung | Water filtering device with a filter element |
| EP0365887A3 (en) * | 1988-10-28 | 1990-12-19 | Oxyphen Ag | Filter cartridge for a liquid-filtration apparatus, especially for water filters |
| EP0365887A2 (en) * | 1988-10-28 | 1990-05-02 | Oxyphen AG | Filter cartridge for a liquid-filtration apparatus, especially for water filters |
| GB2234967A (en) * | 1989-08-01 | 1991-02-20 | Ass Mills Inc | Gravity feed water purification cartridge |
| EP0498913A1 (en) * | 1991-02-15 | 1992-08-19 | LEIFHEIT Aktiengesellschaft | Household water filter |
| WO1992019552A1 (en) * | 1991-05-01 | 1992-11-12 | Waymaster Limited | Improvements in or relating to water treatment devices |
| US5665224A (en) * | 1992-08-14 | 1997-09-09 | William Levine Limited | Filter jug |
| US5989424A (en) * | 1995-04-07 | 1999-11-23 | Matscorp Ltd. | Water filtration cartridge |
| WO1996031440A1 (en) * | 1995-04-07 | 1996-10-10 | Matscorp Ltd. | Water filtration cartridge |
| WO1997041066A3 (en) * | 1996-04-30 | 1998-03-12 | Recovery Eng Inc | Water treatment device with fill-counting cartridge |
| WO1997041066A2 (en) * | 1996-04-30 | 1997-11-06 | Recovery Engineering, Inc. | Water treatment device with fill-counting cartridge |
| WO1998032705A1 (en) * | 1997-01-28 | 1998-07-30 | Brita Water Filter Systems Limited | A water filter jug |
| US6159363A (en) * | 1998-04-30 | 2000-12-12 | Corning Incorporated | Water carafe filter cartridge |
| US6290847B1 (en) | 1998-12-17 | 2001-09-18 | Corning Incorporated | Gravity-flow water filtration device |
| US6454941B1 (en) | 1998-12-17 | 2002-09-24 | Corning Incorporated | Gravity-flow water filtration device |
| US6405875B1 (en) | 1998-12-18 | 2002-06-18 | Corning Incorporated | Water filtration device and method |
| WO2001019733A1 (en) * | 1999-09-14 | 2001-03-22 | Windmill Holdings Limited | A water filter cartridge |
| US7153424B2 (en) | 2000-09-12 | 2006-12-26 | Kari Aalto | Apparatus for purifying water |
| WO2002022233A1 (en) * | 2000-09-12 | 2002-03-21 | Kari Aalto | Apparatus for purifying water |
| WO2005118104A1 (en) * | 2004-05-28 | 2005-12-15 | Brita Gmbh | Apparatus for filtering liquids |
| WO2005118481A1 (en) * | 2004-05-28 | 2005-12-15 | Brita Gmbh | Filter cartridge and device for filtering liquids |
| CN1988944B (en) * | 2004-05-28 | 2010-05-12 | 布丽塔有限责任公司 | Apparatus for filtering liquids |
| US8216451B2 (en) | 2004-05-28 | 2012-07-10 | Brita Gmbh | Apparatus for the filtration of liquids |
| US8114284B2 (en) | 2004-05-28 | 2012-02-14 | Brita Gmbh | Filter cartridge and apparatus for the filtration of liquids |
| US8025802B2 (en) | 2004-05-28 | 2011-09-27 | Brita Gmbh | Filter cartridge and apparatus for the filtration of liquids |
| AU2005249644B2 (en) * | 2004-05-28 | 2009-11-26 | Brita Se | Apparatus for filtering liquids |
| WO2006052161A1 (en) * | 2004-11-10 | 2006-05-18 | Gennadiy Nikolaevich Sednev | Filtering cartridge |
| JP2008542005A (en) * | 2005-05-25 | 2008-11-27 | ライカ・エス・ピー・エー | Filtration equipment for filtering water and liquids in general |
| WO2007073822A1 (en) * | 2005-12-23 | 2007-07-05 | Laica S.P.A. | Filter cartridge for jugs |
| JP2009520582A (en) * | 2005-12-23 | 2009-05-28 | ライカ・エス・ピー・エー | Filter container for liquid containers |
| US8101076B2 (en) | 2005-12-23 | 2012-01-24 | Laica S.P.A | Filter cartridge for jugs |
| EP2251305A3 (en) * | 2005-12-23 | 2012-06-20 | Laica S.p.A. | Filter cartridge for jugs |
| DE102007033339B4 (en) * | 2007-07-16 | 2017-02-02 | Bwt Water+More Gmbh | Filter cartridge for a non-pressurized water filter device |
| DE102007033337B4 (en) * | 2007-07-16 | 2013-08-22 | Bwt Ag | Filter cartridge for a water filter device |
| DE102007033337C5 (en) * | 2007-07-16 | 2015-12-10 | Bwt Ag | Filter cartridge for a water filter device |
| EP2022760A3 (en) * | 2007-07-16 | 2010-11-17 | Bwt Ag | Filter cartridge for a water filtration device |
| US11033841B1 (en) | 2012-05-25 | 2021-06-15 | Plenty Company, LLC | Expandable water filter reservoir |
| CN103523942A (en) * | 2012-07-04 | 2014-01-22 | 杜也兵 | Method for connecting filter drum and built-in filter liner of water purifier in rotary inserting and rotary lifting manner, and built-in filter liner |
| CN103523942B (en) * | 2012-07-04 | 2016-02-03 | 杜也兵 | Revolving of water purifier filter cartridge and built-in filter gall be slotting, revolve and put forward method of attachment and built-in filter gall |
| US10981093B2 (en) | 2013-12-23 | 2021-04-20 | Plenty Company, LLC | Water container with floatable filter system and method |
| US10118113B2 (en) | 2013-12-23 | 2018-11-06 | Bonvi Water, Inc. | Water container with floatable filter system and method |
| US10722828B2 (en) | 2013-12-23 | 2020-07-28 | Plenty Company, LLC | Water container with floatable filter system and method |
| RU2625113C1 (en) * | 2016-05-20 | 2017-07-11 | Закрытое Акционерное Общество "Аквафор Продакшн" (Зао "Аквафор Продакшн") | Filtering module |
| WO2018034794A1 (en) * | 2016-08-16 | 2018-02-22 | Bonvi Water, Inc. | Water container with floatable filter system and method |
| US11596882B2 (en) | 2019-05-28 | 2023-03-07 | Plenty Company, LLC | Water pitcher with float and underside filter |
| RU2772774C1 (en) * | 2021-08-05 | 2022-05-25 | Общество С Ограниченной Ответственностью "Аквафор" (Ооо "Аквафор") | Filter module |
| WO2023014243A1 (en) * | 2021-08-05 | 2023-02-09 | Общество С Ограниченной Ответственностью "Аквафор" (Ооо "Аквафор") | Filter module |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2197647B (en) | 1990-03-07 |
| GB8718869D0 (en) | 1987-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2197647A (en) | Water treatment device | |
| AU2005226867B2 (en) | Container lid | |
| US4306971A (en) | Water purifying apparatus | |
| CA1322860C (en) | Brew through lid for coffee maker | |
| US5676278A (en) | Water dispensing feed tube with improved flow | |
| US5609194A (en) | Lid for a carafe for holding a brewed beverage | |
| CA1264562A (en) | Coffee machine | |
| US5125327A (en) | Beverage pot | |
| US4986172A (en) | Beverage brewing apparatus | |
| US20060213926A1 (en) | Multi-compartment dispensing container | |
| PL251970A1 (en) | Dispensing closure for a spouted container | |
| US5038959A (en) | Coffee lid | |
| CA2275000A1 (en) | Convertible cup for vacuum bottle | |
| US3987943A (en) | Detachable pouring funnel for containers | |
| EP0946421A1 (en) | A water treatment cartridge for use in domestic water treatment apparatus and domestic water treatment apparatus including such a cartridge | |
| KR20010096444A (en) | Pour-through water treatment dispenser | |
| HK1039306A1 (en) | Hybrid beverage container | |
| GB2259241A (en) | Beverage mixing device suitable for attachment to beverage cans | |
| US20150122725A1 (en) | Water filtration apparatus with compostable filter | |
| CA1270376A (en) | Coffee or tea maker | |
| EP0160372A1 (en) | Drinking vessel | |
| CN210008865U (en) | Electric cooking appliance | |
| GB2308055A (en) | Electric kettle with removable filter | |
| GB2255771A (en) | Improvements in or relating to water treatment devices | |
| US20240285114A1 (en) | Beverage brewing system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20050810 |