EP4196245A1 - Filtersystem für wassersysteme - Google Patents
Filtersystem für wassersystemeInfo
- Publication number
- EP4196245A1 EP4196245A1 EP21765987.9A EP21765987A EP4196245A1 EP 4196245 A1 EP4196245 A1 EP 4196245A1 EP 21765987 A EP21765987 A EP 21765987A EP 4196245 A1 EP4196245 A1 EP 4196245A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- filter system
- mud
- pressure
- pressure switch
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 230000011664 signaling Effects 0.000 claims description 12
- 230000003750 conditioning effect Effects 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000011012 sanitization Methods 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 9
- 230000005291 magnetic effect Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 229910044991 metal oxide Inorganic materials 0.000 description 5
- 150000004706 metal oxides Chemical class 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- B01D35/153—Anti-leakage or anti-return valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/606—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by pressure measuring
-
- 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
- B01D35/06—Filters making use of electricity or magnetism
-
- 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
- B01D35/143—Filter condition indicators
- B01D35/1435—Filter condition indicators with alarm means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered
- B01D37/025—Precoating the filter medium; Addition of filter aids to the liquid being filtered additives incorporated in the filter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic separators
- B03C1/031—Component parts; Auxiliary operations
- B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
- B03C1/0332—Component parts; Auxiliary operations characterised by the magnetic circuit using permanent magnets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/28—Magnetic plugs and dipsticks
- B03C1/286—Magnetic plugs and dipsticks disposed at the inner circumference of a recipient, e.g. magnetic drain bolt
-
- 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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/56—Wireless systems for monitoring the filter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/18—Magnetic separation whereby the particles are suspended in a liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/28—Parts being easily removable for cleaning purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/32—Checking the quality of the result or the well-functioning of the device
-
- 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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/481—Treatment of water, waste water, or sewage with magnetic or electric fields using permanent magnets
-
- 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
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
- C02F1/685—Devices for dosing the additives
- C02F1/688—Devices in which the water progressively dissolves a solid compound
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/203—Iron or iron compound
-
- 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
- C02F2201/005—Valves
-
- 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
- C02F2209/03—Pressure
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
Definitions
- the present invention relates, in general, to a filter system. More particularly, it relates to a filter system for systems using a liquid such as water or others.
- the invention will be described below in the case in which it is applied in summer/winter thermal air conditioning systems where mud filters are used, but it can also be implemented in other types of systems where there is the presence of a filter system to filter the liquid flowing through the system.
- thermal summer/winter air conditioning systems in particular heating systems, can have problems due to the formation of metal oxide deposits.
- Mud filters can usually comprise a stainless steel mesh or a magnetic one or both.
- the steel mesh has a filtering action that retains all solid particles larger than the degree of filtration of the mesh, so as to retain the metal oxides formed in the circuit.
- the magnet attracts the ferromagnetic metal oxides to itself, so preventing them from being deposited in the heating circuit.
- a further problem with the known technology of mud filters is the limited installation space under the boiler. Normally all mud filters are equipped or must be equipped with a valve upstream and a valve downstream of the filter to allow the water to be shut off during maintenance and cleaning of the filter. The presence of these two valves makes the installation more complex and bulky.
- conventional mud filters can be used as a point of entry into the thermal system for conditioning products. Usually this operation implies the disassembly of the glass and its filling with the conditioning product. Often this operation has to be repeated a few times in order to supply the sufficient amount of product.
- the object of the present invention is to provide a filter system which solves the problems of the known technique.
- a further scope of the invention is to provide a filter system which can be cleaned or replaced when it is actually clogged or no longer efficient.
- a further scope of the invention is to provide a filter system that can be easily installed to the respective system, regardless of the configuration of the latter, even when there is little installation space under the boiler.
- a further scope of the invention is to provide a filter system facilitating the introduction of conditioning products into the heating system, also by means of pressurized cylinders.
- a filter system comprising a filter with an outlet duct and an inlet duct, said filter being suitable for being connected to a system, characterized in that it comprises a pressure switch disposed in the outlet duct and a signaling device connected to the pressure switch, so that the signaling device signals when the pressure is lower than a predetermined value, this because the signaling device compares the pressure P of the fluid measured by the pressure switch with a predetermined pressure value X.
- the pressure is lower than a predetermined value, it means that there is a pressure drop downstream of the filter due to a clogging of the filter itself, so making it necessary to clean it or due to another anomaly still to be checked.
- the filter system may include a signaling device, such as an alarm card, connected to a control unit.
- a signaling device such as an alarm card
- Such a signaling device may be an acoustic device and/or a visual device.
- the signal may also be transmitted via Bluetooth, Wi-Fi, radio waves or other means.
- the filter may comprise a seat for positioning one or more chemical tablets, capable of purifying and/or sanitizing the liquid flowing in the system.
- a cross-shaped connection allows to choose the most convenient connection. This facilitates the horizontal and vertical orientation of the filter body, which can be adjusted at 360° as well as the connection to the boiler through an extended connection.
- the cross-shaped connection comprises four connections, one of which has a length greater than the others; this makes it easier to connect to the boiler piping and avoids the need for a threaded socket that is usually used for this purpose.
- the filter has a shut-off valve integrated in the filter, so avoiding the installation of an upstream and downstream valve to allow maintenance and cleaning of the filter, by reducing installation space and complexity.
- figure 1 is a schematic side view of a filter system, according to the invention, mounted on an installation
- figure 2 is an exploded schematic side view of the filter system of figure 1
- figure 3 is a cross-sectional side view of a mud filter included in the filter system according to the invention.
- 10 indicates in its entirety a mud filter system suitable for retaining metal oxides, formed within a heating circuit.
- the mud filter system 10 comprises a mud filter 12 and a cross-shaped connection 14 for connecting the mud filter 12 to the corresponding system.
- the 4-way cross-shaped connection 14 which can be rotated by 360°, consists of a dedicated elongated connection for the boiler inlet and of two inlets at a choice, depending on the installation requirements.
- the mud filter 12 comprises in turn a body 16 to which a glass 18 is screwed.
- the body 16 is connected to the cross-shaped connection 14 by means of a bayonet coupling 20 which allows a 360° rotation of the same body 16 and therefore of the mud filter 12.
- the body 16 houses a tap 22 which is controlled by a knob 24.
- the valve 22 allows the flow through the mud filter 12 to be blocked, but this blocking also prevents the flow of fluid through the cross-shaped connection 14.
- the glass 18 houses a magnet 26 and a stainless steel metallic net 28, in particular a fine mesh net.
- the net 28 is connected to the magnet 26 by a connecting means 27 made of ferromagnetic material, so that the net 28 is also made magnetic.
- the net 28 may be a martensitic stainless steel net that is easily magnetized.
- the mud filter system 10 further comprises a pressure switch 30 connected to an alarm card 32 by means of a cable 34.
- the alarm card 32 comprises a signaling device, in particular an acoustic and/or optical device.
- the pressure switch 30 is arranged in the cross-shaped connection, precisely in an outlet duct, so as to measure the pressure of the fluid exiting the mud filter 12.
- the pressure value measured by the pressure switch 30 is sent to the alarm card 32 in which a predetermined pressure value X has been set, which represents the maximum pressure value for which the mud filter is clogged.
- the mud filter 12 is completely clogged and/or saturated, and should therefore be cleaned or replaced.
- the alarm card 32 continuously compares the pressure value P measured by the pressure switch 30 with the predetermined pressure value X.
- the alarm card 32 activates the signaling device.
- the user will be warned by the signaling device that the mud filter 12 is clogged and he will clean and/or replace it.
- the net can then be cleaned.
- the net When the net is removed from the magnet, it temporarily loses its magnetic properties so that it can be easily cleaned of metal debris.
- the mud filter system according to the invention comprises a single valve which is integrated into the mud filter, and thus is not external to it.
- a valve isolates the mud filter from the system to allow maintenance of the same.
- the mud filter system 10 comprises, also, a loading unit comprising a non-return valve 36 coupled to a quick coupling 38, by means of which it is possible to introduce conditioning products into the thermal system, also by means of pressurized cylinders. In this way, the loading operation can be carried out very quickly and easily.
- the alarm card can be connected to a phone line or to an internet network, for example via Wi-Fi or via Ethernet cable or other connection system, so as to send an e-mail message or an SMS to the user.
- the mud filter 30 comprises within itself a seat for positioning one or more tablets of a chemical product, suitable for inhibiting corrosion within the hydraulic system.
- a luminous device may be used, capable of signaling the decrease in pressure beyond a preset limit by means of a luminous signal, such as the switching on of one or more LED lights.
- the filter system 10 according to the invention can be applied for all those devices dedicated to water treatment that during their normal operation can experience a drop in flow and consequently a drop in pressure.
- the filter system according to the invention can be applied for any automatic or non-automatic filter, or for any microfiltration system, so that the pressure switch warns the user of the need to clean and/or replace the filter element.
- the alarm system present in the system object of the invention is also useful in all those cases in which there is a drop in pressure due to a generic anomaly of the system.
- the invention has been described in the case in which it is applied to a mud filter system, but it can also be included in a generic filter system for other applications.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Filtration Of Liquid (AREA)
- Cyclones (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102020000019999A IT202000019999A1 (it) | 2020-08-11 | 2020-08-11 | Sistema filtro per impianti |
PCT/IB2021/057261 WO2022034456A1 (en) | 2020-08-11 | 2021-08-06 | Filter system for water systems |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4196245A1 true EP4196245A1 (de) | 2023-06-21 |
Family
ID=73139192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21765987.9A Pending EP4196245A1 (de) | 2020-08-11 | 2021-08-06 | Filtersystem für wassersysteme |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4196245A1 (de) |
IT (1) | IT202000019999A1 (de) |
WO (1) | WO2022034456A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115177997B (zh) * | 2022-07-01 | 2023-11-10 | 上海亿鼎电子系统集成有限公司 | 一种精细化工用的提纯系统 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1042563A (en) * | 1964-02-07 | 1966-09-14 | Dietrich Botstiber | Liquid filtering device |
US4780197A (en) * | 1986-05-07 | 1988-10-25 | Rainbow Lifegard Products, Inc. | Chlorination module for cartridge filter unit |
US7638042B2 (en) * | 2002-02-15 | 2009-12-29 | 3M Innovative Properties Company | System for monitoring the performance of fluid treatment cartridges |
GB0903182D0 (en) * | 2009-02-25 | 2009-04-08 | Singh Johal P | Magnetic filter |
IT201600104280A1 (it) * | 2016-10-18 | 2018-04-18 | Rbm Spa | Filtro per il trattamento di un fluido in una tubatura, in particolare una tubatura di una rete idrica, e relativo metodo di funzionamento |
-
2020
- 2020-08-11 IT IT102020000019999A patent/IT202000019999A1/it unknown
-
2021
- 2021-08-06 EP EP21765987.9A patent/EP4196245A1/de active Pending
- 2021-08-06 WO PCT/IB2021/057261 patent/WO2022034456A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
IT202000019999A1 (it) | 2022-02-11 |
WO2022034456A1 (en) | 2022-02-17 |
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