Classifications

• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
  • A47J31/00—Apparatus for making beverages
  • A47J31/44—Parts or details or accessories of beverage-making apparatus
  • A47J31/60—Cleaning devices
  • A47J31/605—Water filters
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
  • B01D15/08—Selective adsorption, e.g. chromatography
  • B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
  • B01D15/36—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion
  • B01D15/361—Ion-exchange
  • B01D15/362—Cation-exchange
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
  • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
  • B01D35/147—Bypass or safety valves
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
  • B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
  • B01J39/04—Processes using organic exchangers
  • B01J39/07—Processes using organic exchangers in the weakly acidic form
• • 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
  • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D2201/00—Details relating to filtering apparatus
  • B01D2201/30—Filter housing constructions
  • B01D2201/301—Details of removable closures, lids, caps, filter heads
  • B01D2201/302—Details of removable closures, lids, caps, filter heads having inlet or outlet ports
• • 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
• • 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
  • C02F1/28—Treatment of water, waste water, or sewage by sorption
  • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
• • 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
  • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
  • C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
• • C—CHEMISTRY; METALLURGY
  • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
  • C02F2103/02—Non-contaminated water, e.g. for industrial water supply
• • 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
  • C02F2209/00—Controlling or monitoring parameters in water treatment
  • C02F2209/40—Liquid flow rate
• • 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
  • C02F2301/04—Flow arrangements
  • C02F2301/043—Treatment of partial or bypass streams
• • 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
  • C02F2307/10—Location of water treatment or water treatment device as part of a potable water dispenser, e.g. for use in homes or offices
• • 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
  • C02F2307/12—Location of water treatment or water treatment device as part of household appliances such as dishwashers, laundry washing machines or vacuum cleaners

Definitions

• filter cartridges contain media, such as ion exchange resin, and an adjustable bypass. These filter cartridges are useful for water softening/scale reduction applications.
• Water softening and/or scale reduction filters are used for making beverages in the restaurant and service industries.
• Ion exchange materials such as weak acid cation (WAC) exchange resins, are typically used to exchange hardness minerals (calcium and magnesium) from water with hydrogen or sodium. This results in water with lower scaling potential and use of such water reduces prematurely scaling and maintenance of beverage equipment, including coffee equipment.
• WAC weak acid cation
• WAC exchange resin removes all of the hardness minerals, however, the ability of that water to extract coffee from the coffee-beans may be somewhat compromised, and the taste of the beverage could be adversely affected. Some residual hardness in water used to make beverages is preferred and various beverages require their own hardness specification in water.
• media cartridges that have adjustable bypasses, and systems and methods that use them.
• the ability to adjust flow through treatment resin such as weak acid cation (WAC) resin, is specifically valued by those users who provide hot beverages as well as those who use the same water source for multiple types of equipment (ex: steamers, ice makers, espresso machines, and the like).
• WAC weak acid cation
• Having an adjustable bypass that is readily moved to provide a known amount of bypass facilitates meeting the needs of such users.
• An adjustable bypass will allow a user to protect downstream equipment from scaling while also maintaining a minimum water hardness for desired beverage flavor.
• a media cartridge comprises: an inlet in fluid communication with a feed chamber and an outlet in fluid communication with a mixing compartment; a media compartment containing a media; a bypass port in fluid communication with the feed chamber and the mixing compartment; and a bypass regulator that is adjustable by linear movement; wherein a first fluid path is defined by the feed chamber and the media compartment such that fluid flowing through the first fluid path contacts the media to form a treated fluid that enters the mixing compartment; and a second fluid path is defined by the feed chamber and the bypass port such that fluid flowing through the second fluid path does not contact the media and is untreated upon entry into the mixing compartment.
• the mixing compartment may comprise an insert therein that is in fluid communication with the media compartment and the bypass port, the insert comprising the bypass regulator and a filter element in a filter element cover.
• the bypass regulator may be adjustable by either translation or rotation of a drive.
• the bypass regulator may comprise a valve and the insert further comprises the bypass port, a first end cap of the filter element affixed thereto, an end cap sleeve, and an elastic device.
• the valve in conjunction with the elastic device may move linearly upon application of force to the valve by a drive.
• the valve may comprise the bypass port, and in a closed position, a portion of the first end cap blocks the bypass port; and in an open position, bypass port is unblocked.
• the end cap sleeve may comprise the bypass port, and in a closed position, a portion of the valve or the first end cap blocks the bypass port; and in an open position, bypass port is unblocked.
• the elastic device may be a spring.
• the spring may be assembled with the first end cap.
• the spring may be assembled with the end cap sleeve.
• the spring may be assembled with a second end cap of the filter element.
• the media cartridge may further comprise a conduit connected to the mixing compartment such that treated fluid passes through the conduit before entering the mixing compartment.
• an ion exchange resin cartridge comprising: an inlet in fluid communication with a feed chamber and an outlet in fluid communication with a mixing compartment that optionally contains an insert comprising a filter element in a filter cover; a media compartment containing one or more ion-exchange resins; a bypass port in fluid communication with the feed chamber and the mixing compartment; and a bypass regulator that is adjustable by linear movement; wherein a first fluid path is defined by the feed chamber and the media compartment such that fluid flowing through the first fluid path contacts the one or more ion-exchange resins to form a treated fluid that enters the mixing compartment; and a second fluid path is defined by the feed chamber and the bypass port such that fluid flowing through the second fluid path does not contact the media is untreated upon entry into the mixing compartment.
• FIG. 10 Another aspect provides a beverage preparation system comprising: any ion exchange cartridge disclosed herein wherein the ion-exchange resin comprises a weak acid cation (WAC) exchange resin; and wherein the system is effective to provide water having a desired hardness.
• WAC weak acid cation
• a method of fluid treatment comprising: passing a fluid through an inlet of a media cartridge and into a feed chamber; flowing a first portion of the fluid from the feed chamber through a media compartment containing a media to form a treated fluid and flowing the treated fluid into a mixing compartment; flowing a second portion of the fluid that does not contact the media and is an untreated fluid through a bypass port into the mixing compartment; combining the treated fluid and the untreated fluid in the mixing compartment; flowing contents of the mixing chamber through an outlet; regulating flow through the bypass port by using a bypass regulator that is adjustable by linear movement.
• the method may further comprise filtering the contents of the mixing chamber through a filter element located in the mixing chamber.
• FIG. 1 Another aspect is a water treatment system comprising: any media cartridge disclosed herein; and a head assembly operatively associated with the media cartridge, the head assembly comprising an unprocessed fluid port, a processed fluid port, a drive, and an adjuster, wherein the drive imparts linear force onto the bypass regulator upon movement of the adjuster.
• the head assembly may further comprise a vent.
• FIG. 1 is a cross-section schematic view of a water treatment system comprising a media cartridge with adjustable bypass and a head assembly;
• FIG. 2 is a cross-section schematic view of a head assembly according to an embodiment
• FIG. 3 is a cross-section schematic view of an embodiment of the media cartridge.
• FIG. 4 is an expanded schematic view of an exemplary media cartridge including an embodiment of an insert
• FIG. 5 is another embodiment of an insert
• FIG. 6 is another embodiment of an insert; and [0023] FIG. 7 is a cross-section schematic view of a head assembly in combination with a media cartridge according to an embodiment.
• media cartridges that have adjustable bypasses, and systems and methods that use them. Aspects include an adjustable bypass filter cartridge where a treated stream and an adjusted non-treated stream combine prior to post-filtration and the percentage or ratio of treated the and the non-treated water is adjustable at the time of installation from the outside of the filter cartridge with a known or predictable level of bypass.
• Use of a bypass regulator that operates with linear movement permits easy and precise adjustment from a knob of the head assembly.
• such cartridges allow users to adjust the portion of total fluid, specifically, water that contacts a desired treatment media, such as a weak acid cation exchange resin, while also allowing the total amount of fluid to contact a polishing filter such as a carbon-based filter.
• Cartridges disclosed herein allow an end user to dial in the hardness to the desired specification while also removing any residual chlorine, taste and odor from all of the water.
• a normally closed, adjustable bypass regulator that uses a spring for closure is located within the cartridge.
• a bypass regulator is a structure that controls fluid flow that is bypassing or not contacting a treatment media.
• An exemplary bypass regulator is a valve.
• the height of the drive within the head can be adjusted by a knob located on top of the head. Adjusting the height of the drive will adjust the position of the valve and change the percentage of water flowing through said valve.
• the drive may be a single structure or post, or it may be a combination of structures.
• An exemplary drive comprises a rotational drive in combination with a translation drive.
• a knob imparts force to the rotational drive, which in turn imparts translational force to the translation drive that moves the bypass regulator, and compresses the spring, with linear movement.
• Design of the bypass regulator may be tailored to specific media housings and head assemblies.
• design of the drive may be tailored to lock its position and maintain the valve opening percentage when an old cartridge is replaced with a new cartridge. [0027] In most applications, all water flowing through the system will pass through a filter element before exiting the cartridge.
• Fluid path refers to the substantially continuous route of a fluid through the cartridge.
• Treated fluid refers to fluid that has contacted a media to achieve a desired treatment.
• fluid treated by a weak acid cation (WAC) exchange resin achieves a reduction in hardness.
• Untreated fluid fluid that bypasses treatment by a media. Both treated and untreated fluid can be purified as needed by a filter such as a carbon-based filter.
• treatment media and “adsorptive media” include materials
• adsorbents having an ability to adsorb particles via different adsorptive mechanisms.
• These media can be in the form of, for example, spherical pellets, rods, fibers, molded particles, or monoliths with hydrodynamic diameter between about 0.01 to 10 mm. If such media is porous, this attribute results in a higher exposed surface area and higher adsorptive capacity.
• the adsorbents may have combination of micropore and macropore structure enabling rapid transport of the particles and low flow resistance.
• Ion exchange resin refers to an insoluble matrix (or support structure) normally in the form of small beads fabricated from an organic polymer substrate.
• the material has a structure of pores on the surface that, upon chemical activation, can comprise exchange sites that trap and release ions.
• Microreticular used herein to describe ion exchange resins, refers to ion exchange resins having no permanent pore structure.
• a microreticular may comprise a cross-linked polymer gel having polymeric chains, wherein a pore structure is defined by varying distances between the polymeric chains.
• Such gels whose pore structure is subject to variation based on a number of factors, are commonly referred to as gel-type resins.
• Microreticular used herein to describe ion exchange resins, refers to ion exchange resins comprising one or more agglomerates of microreticulars. Openings or apertures defined between the agglomerates can give macroreticulars an additional porosity beyond that of their constituent microreticulars.
• a “media element” refers to structures that are formed by one or more types of media to achieve filtration and/or treatment of a fluid.
• the media may provide functionalities including, but not limited to, mechanical filtration, ion exchange, and/or adsorptive capacity.
• "Processed fluid” refers to fluid that has contacted a media element to achieve a desired result, such as filtering and/or treatment as described herein.
• a “media cartridge” comprises a media element and structures such as end caps to ensure flow of fluid to be processed through the media and out of the cartridge as processed fluid. In some instances, there is a core or other passage internal to the media element of the cartridge for fluid flow.
• end cap it is meant a substantially solid piece of material placed at the end of a media block which is dimensioned so as to at least seal the greater portion of the surface area of one or both ends of the block. End caps on either end of a media cartridge may independently have additional features to facilitate installation and/or use of the media cartridge.
• Frtered fluid refers to fluid that has contacted a separation media or filter element to achieve a desired purity.
• fluid filtered by a carbon-based filter block that contains separation media may achieve a reduction in sediment, chlorine, and lead.
• Unfiltered fluid fluid that bypasses treatment by a separation media. Both filtered and unfiltered fluid may be treated as needed by contact with a treatment media.
• suitable media may include cellulosic media, synthetic media, or a combination thereof.
• the media cartridges may include one or more types of media, including, but not limited to, ion exchange resins, activated carbon, diatomaceous earth, and the like.
• ion exchange resins the embodiments herein are not limited to the use of any specific ion exchange resin or to any specific combinations of resins.
• Suitable media for inclusion in an embodiment of the invention may be selected based, at least in part, on the requirements of an intended filtration application.
• Ion exchange resins suitable for inclusion in the various embodiments of the invention include cationic resin, anionic resin, mixtures of cationic and anionic resins, chelating, or biologically related ion exchange resins.
• the ion exchange resins may be, for example, microreticular or macroreticular. In some embodiments, the microreticular type is preferred.
• Ion exchange resins that may be included in embodiments of the invention include, but are not limited to, those made of cross-linked polyvinylpyrolidone and polystyrene, and those having ion exchange functional groups such as, but not limited to, halogen ions, sulfonic acid, carboxylic acid, iminodiacetic acid, and tertiary and quaternary amines.
• Suitable cation exchange resins may include sulfonated phenolformaldehyde condensates, sulfonated phenol-benzaldehyde condensates, sulfonated styrene-divinyl benzene copolymers, sulfonated methacrylic acid-divinyl benzene copolymers, and other types of sulfonic or carboxylic acid group-containing polymers. It should be noted that cation exchange resins are typically supplied with H+ counter ions, NH4 + counter ions or alkali metal, e.g., K+ and Na+ counter ions. Cation exchange resin utilized herein may possess hydrogen counter ions.
• An exemplary particulate cation exchange resin is MICROLITE PrCH available from PUROLITE (Bala Cynwyd, Pa.), which is a sulfonated styrenedivinyl benzene copolymer having a H+ counter ion.
• cationic ion exchange resins include, but are not limited to, those available under the following trade designations: AMBERJETTM 1200(H); AMBERLITE® CG-50, IR-I20(plus), IR-I20 (Plus) sodium form, IRC-50, IRC-50S, IRC-76, IRC-7I8, IRN-77 and IR-I20; AMBERLYST® 15, 15(wet), 15 (dry), 36(wet); and 50 DOWEX® 50WX2- 100, 50WX2-200, 50WX2-400, 50WX4-50, 50WX4-100, 50WX4-200, 50WX4-200R, 50WX4-400, HCR-W2, 50WX8- 100, 50WX8200, 50WX8-400, 650C, MARATHON® C, DR-2030, HCR-S, MSC-1, 88, CCR-3, MR3, MR-3C, and RETARDION®; PU
• Suitable anion exchange resins may include those resins having a hydroxide counter ion whereby hydroxide is introduced during the exchange process.
• anion exchange resin comprise quaternary ammomium hydroxide exchange groups chemically bound thereto, e.g., styrene-divinyl benzene copolymers substituted with tetramethylammoniumhydroxide.
• the anion exchange resin comprises crosslinked polystyrene substituted with quaternary ammonium hydroxide such as the ion exchange resins sold under the trade names AMBERLYST® A-26-0H by ROHM AND HAAS Company and DOW G51-0H by DOW CHEMICAL COMPANY.
• anionic ion exchange resins include, but are not limited to: AMBERJETTM 4200(CI); AMBERLITE® IRA-67, IRA-400, IRA-400(CI), IRA- 410, IRA- 900, IRN-78, IRN-748, IRP-64, IRP-69, XAD-4, XAD-7, and XAD-16; AMBERLYST A-21 and A-26 OH; AMBERSORB® 348F, 563, 572 and 575; DOWEX® 1X2- 60 100, 1X2-200, 1X2-400, 1X4-50, 1X4-100, 1X4-200, 1X4-400, 1X8-50, 1X8-100, 1X8- 200, 1X8-400, 21K CI, 2X8-100, 2X8-200, 2X8-400, 22 CI, MARATHON® A, MARATHON ® A2, MSA-1, MSA-2, 550A,
• a specific example of mixed cationic and anionic resins is AMBERLITE® MB-3A; PUROFINE PFA600, PUROLITE MB400, MB600, NRW37, NRW3240, NRW3260 and NRW3460.
• Suitable chelating exchange resins for removing heavy metal ions may comprise polyamines on polystyrene, polyacrylic acid and polyethyleneimine backbones, thiourea on polystryrene backbones, guanidine on polystryrene backbones, dithiocarbamate on a polyethyleneimine backbone, hydroxamic acid on a polyacrylate backbone, mercapto on polystyrene backbones, and cyclic polyamines on polyaddition and polycondensation resins.
• chelating ion exchange resins include, but are not limited to: PUROLITE S108, S910, S930Plus and S950; AMBERLITE IRA-743 and IRC-748.
• biologically related resins that can be used in the processes and products of the invention include, but are not limited to, SEPHADEX® CM C- 25, CM C-50, DEAE A-25, DEAEA-50, QAEA-25, QAEA-50, SP C-25, and SP C-50.
• cationic, anionic, mixed cationic and anionic, and biologically related ion exchange resins are commercially available from, for example, SIGMA- ALDRICH CHEMICAL CO., Milwaukee, Wisconsin, or from ROHM AND HAAS, Riverside, New Jersey, or from PUROLITE, Bala Cynwyd, Pennsylvania.
• ion exchange resins include, but are not limited to
• a filter element may be provided for filtration of both treated and untreated fluid. That is, under most circumstances, water flowing through the system will pass through a post filter before exiting the cartridge, but it is understood that a filter element may not be needed for certain applications.
• the filter element may comprise particles contained loosely or, preferably, may be a media block formed by particles.
• Exemplary media particles for use in filter elements include, but are not limited to: activated carbon, polymeric binder, and diatomaceous earth.
• media comprising activated carbon and polymeric binder particles may form a carbon-based filter block.
• filter elements may include structures, pleated or unpleated, including, but not limited to: a woven structure, a non- woven structure, a microporous membrane, a monolith, a melt-blown fiber (MBF) structure, and an open-cell foam.
• Exemplary materials of construction of these structure may include, but are not limited to: nylon (e.g., nylon 6,6), ethylene chlorotrifluoroethylene (ECTFE), polypropylene, polyethylene, polyvinylidene fluoride (PVDF), polyethersulfone, polysulfone, polyester, polytetrafluoroethylene (PTFE), polycarbonate, nitrocellulose, cellulose acetate, cellulose, or combinations thereof.
• Exemplary filter elements may be: a pleated microporous membrane, a carbon-based filter block, a nonwoven material wrapped around a filter block, and any combination thereof.
• the water treatment systems disclosed herein may be used commercially for providing beverages to consumers. Hot beverages, such as coffee and espresso usually require a certain hardness, whereas steamers and ice makers may have a different requirement.
• the systems herein with adjustable bypasses are easily and readily used to provide a known amount of bypass facilitates meeting the needs of such users so that one water source may be used for multiple purposes. Choice of a media cartridge and filter element permits addressing any desired filtration and purity goals.
• FIG. 1 is a cross-section schematic view of a media cartridge 100 with adjustable bypass and a head assembly 150, where fluid, such as water, enters the unprocessed fluid port 152 and then into the cartridge 100 through (cartridge) inlet 102 and into a feed chamber 106.
• the feed then passes either through a feed separator 108 (optional), which aids in keeping the media from escaping the cartridge or through bypass port 120 into the mixing compartment 1 16. From the feed separator 108, the fluid flows into the media compartment 1 14 following the path shown by the arrows.
• the amount of fluid going into the mixing compartment 1 16 is related to the flow through bypass port 120, which is regulated by bypass regulator 204 in conjunction with elastic device 205, which may be, for example, a spring.
• elastic device 205 which may be, for example, a spring.
• any percentage of fluid for example, 1 vol.%, 2.5 vol. %, 5 vol. %, 10 vol. %, 20 vol. %, 30 vol. %, 40 vol. %, or even 50 vol.% or more can bypass treatment by the media.
• the media compartment 1 14 contains a desired media (not depicted) for treating the fluid.
• a first fluid path is one where fluid contacts the media in the media compartment to form a treated fluid which then enters the mixing compartment 1 16.
• a second fluid path is one where fluid does not contact the media, leaving this fluid untreated, and this fluid flows from the feed chamber 106 and into the mixing compartment 1 16 directly.
• Treated fluid flows through media separator 1 12 (optional), which aids in keeping the media from escaping the cartridge, and into the treated chamber 1 10.
• Treated fluid then flows through conduit 1 18 and into the mixing compartment 1 16.
• the treated fluid can flow from the media compartment 1 14 and into the mixing compartment 1 16 without the need for a media separator 1 12, a treated chamber 1 10, or a conduit 1 18.
• Treated and untreated fluids mix in the mixing compartment 1 16 form an outlet fluid which flows through (cartridge) outlet 104 and processed fluid port 154 and to a point of use or service.
• the body or housing 1 1 1 of the cartridge typically comprises a top or sump cover and a sump.
• these pieces may be formed integrally or be permanently sealed together during manufacturing to form a sealed cartridge/body. As desired, however, these pieces may be separable and even reusable.
• the mixing compartment 1 16 contains a filter element 208 or other device or media for purifying the fluid.
• the filter element 208 comprises a first/upper end cap 206 and a second/lower end cap 218 to ensure proper flow through the filter media and into the filter core 209.
• a filter element cover 212 contains the filter element 208.
• the head assembly 150 in addition to providing the unprocessed fluid port
• adjuster 60 which specifically may be knob, that is operatively connected to a drive 157.
• a vent 156 is also part of the head assembly 150.
• FIG. 2 is a close-up, cross-section schematic view of a head assembly 150, where the unprocessed fluid port 152 receives fluid, for example water, to be processed and delivered to the media cartridge. Fluid that has been processed through the media cartridge and optional filter element then exits through the processed fluid port 154 and to a point of service. Vent 156 facilitates flow.
• Adjuster 160 is operatively connected to the drive, which in this embodiment, is formed of two structures: a rotational drive 158 and a translational drive 159.
• the adjuster in the form of a knob imparts rotational force, but in the form of a lever, may impart linear force. No matter, upon application of force to the adjuster 160, rotational force is imparted to the rotational drive, which in turn imparts translational force to the translation drive that moves the bypass regulator, and compresses the elastic device, with linear movement.
• FIG. 3 is a close-up, cross-section schematic view of a media cartridge 100, where the inlet 102 receives fluid, for example water, to be processed and the outlet 104 receives processed fluid.
• Fluid entering the media cartridge 100 passes through the inlet 102 and hits valve 216, which is an exemplary bypass regulator, entering the feed chamber 106.
• the feed then either passes through the feed separator 108 (optional), which aids in keeping the media from escaping the media compartment 1 14 or through the bypass port 120 into the mixing compartment 1 16.
• the amount of fluid going into the mixing compartment 1 16 is related to the flow through bypass port 120, which is regulated by the valve 216 in conjunction with the elastic device 205 and with a portion of the first/upper end cap 206, which in this embodiment has an extension with one section having a first, enlarged diameter to block the bypass port 120 when the valve is in one position and a second section have a second, narrower diameter to permit flow through the bypass port 120.
• End cap sleeve 207 in combination with filter element cover 212 contains the filter element 208. Flow of fluid from the bypass port goes through the outer diameter of the filter element 208 and into filter core 209, out the passage of the end cap 206 to outlet 104.
• Drive 159 of FIG. 2 imparts linear force on valve 216 of FIG. 3 in order to adjust the amount of bypass fluid flow.
• the body or housing of the cartridge typically comprises a top or sump cover
• an expanded schematic view of an exemplary media cartridge 100 include an embodiment of an insert 200 is provided.
• Sump cover 109 has the inlet 102 and the outlet 104.
• the sump 1 13 contains most of the insert 200 up to about the enlarged diameter portion of the filter cover 1 12.
• Filter cover 1 12 and end cap sleeve 207 contain the filter element 208 having two end caps, the first/upper end cap 206 extends into the area of the sump cover 109 and the second/lower end cap, which is not shown in this figure.
• Valve 216 comprising bypass port 120 is adjusted by a portion of the head assembly, for example, a knob, external to the cartridge. Valve 216, moves with linear motion in conjunction with elastic device 205.
• the first/upper end cap 206 has an extension with a section of enlarged diameter, which when lined up with the bypass port 120, blocks flow into the mixing chamber.
• the bypass port 120 of the valve 216 is not lined up with the enlarged diameter section of the first/upper end cap 206, then flow is permitted into the mixing chamber. This flow may be varied depending on location of the valve/bypass port relative to the enlarged diameter.
• the extension of the first/upper end cap has a seal, such as an o-ring, to ensure separation of unprocessed fluid from processed fluid.
• a carbon- containing block is an exemplary filter element 208 that may be contained within the filter element cover 212 and the end cap sleeve 207.
• the insert 200 is in fluid communication with the conduit 1 18 depicted in FIG. 1.
• an optional structure such as a spacer may be used to orient the carbon-containing block as desired.
• Other optional structures may be used in conjunction with the insert to increase accuracy of the valve positioning and/or to help eliminate tolerance stackup, which is accumulated variation in mechanical parts and assemblies that is due to tolerances in specified dimensions.
• FIG. 5 shows an expanded schematic view of another exemplary insert 300.
• Filter cover 312 and end cap sleeve 307 contain the filter element 308 having the first/upper end cap 306 and the second/lower end cap 318.
• Valve 316 in this embodiment does not comprise a bypass port. Rather end cap sleeve 307 comprises the bypass port 320.
• Valve 316 is adjusted by a portion of the head assembly, for example, a knob, external to the cartridge. Valve 316, moves with linear motion in conjunction with elastic device 305, which is located adjacent to the valve 316. In this embodiment, there is not an extension of first/upper end cap 306, but it does receive elastic device 305.
• Valve 316 has a section of enlarged diameter. When the bypass port 320 of the end cap sleeve 307 is not lined up with the enlarged diameter section of the valve, then flow is permitted into the mixing chamber.
• FIG. 6 shows an expanded schematic view of another exemplary insert 400.
• Filter cover 412 and end cap sleeve 407 contain the filter element 408 having the first/upper end cap 406 and the second/lower end cap 418.
• Valve 416 in this embodiment does not comprise a bypass port and is operatively connected or attached (integrally or removably) to first/upper end cap 406.
• End cap sleeve 407 comprises the bypass port 420.
• Valve 416 is adjusted by a portion of the head assembly, for example, a knob, external to the cartridge and moves with linear motion in conjunction with elastic device 405, which is located adjacent to the second/lower end cap 405. In this embodiment, there is not an extension of first/upper end cap 406 due to the presence of valve 416. Either valve 416 or the first/upper end cap 406 has a section of enlarged diameter.
• FIG. 7 is a cross-section schematic view of a head assembly 550 in combination with a media cartridge 500, where the unprocessed fluid port 552 receives fluid, for example water, to be processed and delivered to the media cartridge. Fluid that has been processed through the media cartridge and optional filter element then exits through the processed fluid port 554 and to a point of service. Vent 556 facilitates flow.
• Adjuster 560 is operatively connected to the drive, which in this embodiment, is formed of two structures: a rotational drive 558 and a translational drive 559. Upon application of force to the adjuster 560, rotational force is imparted to the rotational drive, which in turn imparts translational force to the translation drive that moves the bypass regulator, and compresses the elastic device, with linear movement.
• Media cartridge 500 has inlet 502 for receiving fluid, for example water, to be processed and outlet 504 for receiving processed fluid. Fluid entering the media cartridge 500 passes through the inlet 502 and hits valve 616, which is an exemplary bypass regulator, entering the feed chamber 506. The feed then either passes through the feed separator 508 (optional), which aids in keeping the media from escaping the media compartment 514 or through the bypass port 520 into the mixing compartment 516.
• valve 616 which is an exemplary bypass regulator
• the amount of fluid going into the mixing compartment 516 is related to the flow through bypass port 520, which is regulated by the valve 616 in conjunction with the elastic device 605 and with a portion of the first/upper end cap 606, which in this embodiment has an extension with one section having a first, enlarged diameter to block the bypass port 520 when the valve is in one position and a second section have a second, narrower diameter to permit flow through the bypass port 520.
• Flow of fluid from the bypass port goes through the outer diameter of the filter element 608 and into filter core 609, out the passage of the end cap 606 to outlet 504.
• Drive 559 imparts linear force on valve 616 in order to adjust the amount of bypass fluid flow.
• the body or housing of the cartridge typically comprises a top or sump cover 509.
• One or more o-rings 615 circumscribe the valve 616 and provide a seal with end cap sleeve 607.
• One or more o-rings 605 circumscribe the extension of the end cap 606 and provide a seal with

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• 2014
  • 2014-09-11 AU AU2014318808A patent/AU2014318808B2/en active Active
  • 2014-09-11 JP JP2016543934A patent/JP6538700B2/ja active Active
  • 2014-09-11 EP EP14844696.6A patent/EP3046878B1/en active Active
  • 2014-09-11 WO PCT/US2014/055105 patent/WO2015038719A1/en not_active Ceased
  • 2014-09-11 US US14/913,812 patent/US9872584B2/en active Active
  • 2014-09-11 CA CA2922485A patent/CA2922485A1/en not_active Abandoned
  • 2014-09-11 CN CN201480048848.XA patent/CN105517958B/zh active Active
  • 2014-09-11 KR KR1020167009594A patent/KR102327366B1/ko active Active

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