CN102068849B - Filter assembly - Google Patents

Filter assembly Download PDF

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Publication number
CN102068849B
CN102068849B CN201010539194.4A CN201010539194A CN102068849B CN 102068849 B CN102068849 B CN 102068849B CN 201010539194 A CN201010539194 A CN 201010539194A CN 102068849 B CN102068849 B CN 102068849B
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CN
China
Prior art keywords
filter
filter element
outlet
cup
coupling arrangement
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Active
Application number
CN201010539194.4A
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Chinese (zh)
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CN102068849A (en
Inventor
W·赫金
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Syr Trading Shanghai Co ltd
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Hans Sasserath GmbH and Co KG
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Application filed by Hans Sasserath GmbH and Co KG filed Critical Hans Sasserath GmbH and Co KG
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering 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
    • B01D35/14Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/147Bypass or safety valves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11Filters 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
    • B01D29/31Self-supporting filtering elements
    • B01D29/33Self-supporting filtering elements arranged for inward flow filtration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/44Edge filtering elements, i.e. using contiguous impervious surfaces
    • B01D29/445Bar screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62Regenerating the filter material in the filter
    • B01D29/66Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The invention relates to a filter assembly, and concretely relates to a filter assembly used for filtering drinking water and capable of performing back flushing, the filter assembly comprises: a coupling device provided with an outlet and an inlet; a filtering cup provided with a reference flow disposed between the inlet and the outlet; a discharge outlet; a filtering element coaxially arranged in the filtering cup, substantially in the shape of a cylinder, and with the internal area connected with the outlet; the filter assembly is characterized in that, a substantially annular cavity is formed between the filtering cup and the filtering element and is connected with the inlet, therefore, in a work state, water flow from the inlet to the internal area of filtering element via the filtering element; at least a channel opening toward the filtering element is disposed in the cavity and is connected with the discharge outlet, therefore, in a state of a back flushing and under a condition of opening of the discharge outlet, flow from the internal of the filtering element to the discharge outlet via the channel can be generated; and the filtering element can be supported in a mode of capability of rotating around a longitudinal axis, therefore, the surface of the filtering element can move along the channel.

Description

Filter assemblies
Technical field
The present invention relates to a kind of be used for filtering drinking water can (r ü cksp ü lbar) filter assemblies (Filteranordnung) of back flush, this filter assemblies comprises:
A (), with the coupling arrangement (Anschlussarmatur) of import and outlet, this coupling arrangement is used for filter assemblies to be arranged in drinking water pipeline;
B () filter cup (Filtertasse), this filter cup is with reference to stream be arranged between import and outlet;
C () is at the closable outlet (Abfluss) of the lower end of filter cup;
D () is coaxially arranged in filter cup, basic is columniform filter element, and the interior zone of this filter element is connected with outlet.
Utilize this filter, can drinking water tap (Zapfstelle) place for before, filtration derives from the drinking water of drinking water supply.The particle accumulated in filter element blocking filter gradually.Thus, undesirable pressure drop is caused.By back flush (that is, by producing in the opposite direction by the stream of filter), cleaning and filtering again.The water receiving particle in back flush procedure is flowed out by outlet.
Background technology
File EP 0 401 633B1 shows a kind of pressure reducer-filter, in this pressure reducer-filter, is furnished with reducer assemblage in back flush filter interior.
File DE 3733306C1 shows a kind of back flush filter, and in this back flush filter, scraping brushing device is swiped on filter cup and the particle scraped off when back flush is transported.
Summary of the invention
The object of the invention is to, realize the filter assemblies of the described type of beginning, this filter assemblies is in the low and simple structure of manufacture view cost.
According to the present invention, this object realizes in the following manner:
E () is formed with the cavity of basic ring-type between filter cup and filter element, this cavity is connected with import, thus in working order in, water flow to the interior zone of this filter element from import by filter element;
F () is provided with at least one passage opened wide towards filter element in the cavities, this passage is connected with outlet, thus in back flush state when outlet is opened, can produce from the inside of filter element by the stream of passage towards outlet; And
G () filter element is can support around the mode of longitudinal axis, thus can move along passage in the surface of filter element.
This component structure is simple especially.This assembly is low at manufacture view cost.In working order, water flows to the cavity outside filter element from import.This flows through filter and advances in the inside of filter element.At this, water is filtered.Water is from the inside of filter element towards output flow.In back flush state, water from cavity towards the flows of filter cup, and outwards flows out from this.Consequent stream causes suction (Sog) in the channel, and this passage is connected with outlet.Passage is upwards closed.By suction, the particle sticked to outside filter element is sucked away in passage, and is sucked away by towards outlet from this.Now, when rotating filter element, be sucked away at the particle at different parts place.In this way, by rotating clean whole filter element.This assembly can have one or more passage.In preferred form of implementation, be provided with in the circumferential with three passages at about 120 ° of intervals.
Advantageously, filter element with can be connected from the regulating handle of external control.Then, manually easily filter element can be rotated.Especially, when filter cup is transparent, under visual control, filter element can be taken in such position, thus remaining particle is sucked away.
In design of the present invention, filter element has embolism (Zapfen) in lower end, this embolism extend through the bottom of filter cup and form fit be connected with regulating handle.Can extend in whole angular regions outside the bottom that regulating handle can abut in filter cup.Will be understood that, also can use other form for regulating handle.
Advantageously, the bottom place at filter cup under filter element is formed with the bottom space be connected with cavity, and this bottom space is connected with outlet by the path in embolism inside.Realize the assembly of the symmetry that can easily manufacture in this way.
In simple, preferred especially form of implementation of the present invention, passage is formed by two ribs, and this rib extends internally in radial directions on the height of filter element, and molded (anformen) is at the inner side place of filter cup.Therefore, passage is not formed by independent parts.On the contrary, passage can be molded directly into filter cup place.Filter cup is preferably made of plastics, and is such as moulding.So, being molded of passage is simple especially, and does not need other procedure of processing.Will be understood that, more passage by more rib to being formed, and can not increase expense.
In the preferred design of the present invention, filter element is by with cylinder type filter net, the filtration rib extended in the circumferential or other can the supporter of filtering material of back flush be formed.This supporter can especially by (lebensmittelecht) plastics manufacture of food security.
In other design of the present invention, coupling arrangement has closable pipe joint (Stutzen), can insert decompression cylinder (Druckmindererpatrone) for the output pressure controlled in exit in this pipe joint.Therefore, coupling arrangement is not only applicable to the application with pressure reducer, is applicable to the application not with pressure reducer yet.Because need not be the special coupling arrangement of often kind of situation manufacture, therefore can be mass-produced coupling arrangement, and coupling arrangement cost is lower in this way.
In other design of the present invention, pipe joint is relative to filter cup and be coaxially arranged on the side relative with filter element with this filter cup of coupling arrangement relative to filter element.Pressure reducer can especially project upwards, and gives prominence to downwards with the filter cup of outlet.In addition, the ball valve for inaccessible outlet also can be set.Thus, this assembly is compact.
In addition, closable opening can be provided with to be used for connecting Pressure gauge in coupling arrangement.This opening leads in the output room before outlet.Then, pressure or the pressure utilizing pressure reducer to adjust in exit can easily be obtained.
Design of the present invention is the object of dependent claims.Below with reference to the accompanying drawings embodiment is explained further.
Accompanying drawing explanation
Fig. 1 be through with pressure reducer can the vertical section of filter assemblies of back flush.
Fig. 2 is through the vertical section coming from the assembly of Fig. 1 with the cross-sectional axis being displaced 90 °.
Fig. 3 is the cross section along hatching C-C in FIG.
Fig. 4 is the cross section along hatching E-E in FIG.
Fig. 5 is the cross section along hatching F-F in FIG.
Fig. 6 be through similar Fig. 1's but the cross section of filter assemblies not with pressure reducer.
Fig. 7 be the perspectivity of the upper part of the filter assemblies coming from Fig. 6, the diagram of cutting.
Fig. 8 be the perspectivity of the lower part of the filter assemblies coming from Fig. 6, the diagram of cutting.
Fig. 9 illustrates for the perspectivity of the filter element of the filter assemblies according to Fig. 1 to Fig. 8.
Figure 10 is the perspectivity diagram of a part for filter cup for the filter assemblies according to Fig. 1 to Fig. 8.
Figure 11 is the perspectivity diagram coming from the filter cup assembled of Fig. 9 and Figure 10 and the intercept of filter element.
Figure 12 show in more detail the pressure reducer with adaptor.
Detailed description of the invention
Fig. 1 show generally with 10 represent can the filter assemblies of back flush.Filter assemblies 10 comprises coupling arrangement 12, filter cup 14, filter element 16 and reducer assemblage 18.Filter element 16 illustrates separately in fig .9 again.Filter element 14 illustrates separately in Fig. 10 again.
Coupling arrangement 12 has the inlet connector tube 20 for being connected to drinking water supply place.Coaxially on relative side, coupling arrangement 12 has outlet 22.The water filtered at outlet 22 place is for other application.
Downside place in Fig. 1 of coupling arrangement 12 is molded with pipe joint 24.This pipe joint 24 is provided with internal thread 26.Externally threaded filter cup 14 with coupling is screwed in internal thread 26.Filter cup 14 is the plastic injection piece be made up of transparent plastic.This filter cup 14 top is unlimited, and is configured to substantially cylindrical.In lower end, filter cup 14 has bottom 28.Opening 30 (Figure 10) is had in the bottom 28 of filter cup 14.
Filter element 16 is inserted with in filter cup 14.Filter element 16 comprises six support columns 32, and these support columns 32 extend on the whole height of filter element 16, and have leg-of-mutton cross section.This also can find out in the diagram of cross section in Figure 5 well.Between support column 32, be formed with filtration grizzly bar, these filter grizzly bar and are formed by a large amount of parallel ribs 34, and these ribs 34 stretch in the circumferential.Unlimited edge 36 is formed in the upper end of filter element 16.The closed bottom 38 of continuous print is formed in the lower end of filter element 16.Hollow columniform protuberance 39 is molded with at the downside place of bottom 38.On the upside of bottom 38, breach 42 is formed with at protuberance 39.Breach 42 establishes the connection between bottom space 44 between the bottom 28 of filter cup 14 and the bottom 38 of filter element 16 and the inside of hollow embolism 40.
In insert state, embolism 40 projects through the opening 30 in the bottom 28 of filter cup 14.Two sealing rings 46 and 48 seal being rotatably connected between the bottom 28 of filter cup 14 and embolism 40.On outside, embolism 40 forms square (Vierkant).This square overlaps to form fit with interior tetragonal handle 50.Handle 50 is housing shape, and symmetry extends around the bottom section of filter cup 14 loosely.When around the longitudinal axis handle 50 of whole assembly, filter element 16 rotates together.
The inside of embolism 40 forms path 52, and this path 52 leads in the outlet 56 with ball valve 54.
Between filter element 16 and filter cup 14, the whole height of filter cup is formed with cavity 58.In lower end, cavity 58 relative to bottom space 44 separately.In upper end, cavity 58 is connected with import 20.At this, be formed with wall portion (Wandung) 60 in coupling arrangement 12, this wall portion 60 makes import 20 separate with outlet 22.Wall portion 60 is so arranged, that is, make to form annular space in the upper area of filter cup 14 or filter element 16, and this annular space is connected with cavity 58 downwards and is upwards connected with import 20.At outlet side, wall portion 60 forms the accommodation section being used for reducer assemblage 18, as illustrated at Fig. 1, or forms the accommodation section being used for cover plate 62, as shown in fig. 6.The water upwards flowed at Way out from the inner space 64 (Fig. 4) of filter element 16 is limited by the control of pressure reducer 18.
The inner side of filter cup 14 is formed with three to vertical longitudinal rib 66.These longitudinal ribs 66 can be found out in Fig. 10 well.Longitudinal rib 66 is projected into the outer peripheral edge of filter element 16, and is formed into right passage 68, and this passage 68 extends on the whole height of filter element 16.As can be found out in Fig. 1 and Fig. 4, passage 68 thereon side place is closed.Be different from other cavity 58, passage 68 is not connected with import 20.Therefore, water can only flow to passage through filter element in the opposite direction from the inner space 64 (Fig. 4) of filter element 16.In lower end, passage instead of the cavity between it 58 lead in bottom space 44.Therefore, to be arrived in bottom space 44 by the defluent water of passage and arrive outlet 56 from this.
Said modules works as follows:
In working order, ball valve 54 is utilized to close outlet 56.Water is flow to downwards the cavity 58 between filter cup 14 and filter element 16 from import 20 by annular space 70.Water is inwardly flow to inner space 64 by filter element 16 from cavity 58.At this, water is filtered.Particle is captured at the outside place of filter element 16 .Water upwards returns from inner space 64 and flows to coupling arrangement 12.At this place, water through pressure reducer 18 and from this sentence oneself filter mode flow to outlet 22.
In order to ball valve 54 is opened in back flush.Then, water passes downwardly through outlet 56 and outwards flows out.At this, in passage 68, produce stream, this stream causes suction effect (Sogwirkung).Outwards flow in passage by filter element 16 in the opposite direction the angular range of passage from the inner space 64 of filter element 16 by the suction effect water caused in the channel.At this, the particle adhered at filter element 16 outside place is dragged away together.Therefore, inwardly flow to inner space 64 from cavity 58 in water angular range first between channels, in the angular range of passage, then pass outwardly filter in the opposite direction flow in passage 68.
Now, handle 50 can be utilized to rotate filter element 16 relative to filter cup 14.At this, surface (particle with sticking to its place) (ü berstreichen) inswept passage 68 of filter element 16.Therefore, particle is sucked away from whole surface and is transported to outlet.
Reclosable ball valve 54 after back flush terminates.Then water only flows again in working order from outside to inside.
The sectional view that have rotated 90 ° around longitudinal axis in fig. 2 shows two and utilizes the pent Pressure gauge connector 72 and 74 of stopper, and this Pressure gauge connector 72 and 74 is used for detecting input pressure and output pressure.
Figure 12 show in more detail pressure reducer 18.This pressure reducer 18 is well-known, does not therefore need detailed explanation.Pressure reducer 18 utilizes the internal thread being screwed into adaptor pipe joint 80 at the external screw thread 76 at pipe joint 78 place.Adaptor pipe joint 80 forms a part for adaptor 82, and this adaptor 82 utilizes screw thread 84 to be screwed in coupling arrangement 12.This adaptor 82 is utilized to realize being separated of the input room 86 of pressure reducer and the output room 88 of pressure reducer.The efferent of filter is directly pressed close in input room 86.Export room 88 to be connected with outlet 22.The pressure-reducing valve 92 of pressure reducer 18 is furnished with, by the output pressure of this pressure-reducing valve 92 adjusting part between input room 86 and output room 88.Input room 86 realizes mainly through wall portion 90 with being separated of room 88 of output, and this wall portion 90 is formed by adaptor 82.This wall portion 90 and a part for outside adaptor wall portion 94 together form the accommodation section of the middleware 96 for pressure reducer 18.Middleware 96 is inserted in this accommodation section, and seals relative to input room 86 by means of seal 98.Hollow rib (not showing in this sectional view, because be displaced 45 ° relative to section plane) establishes the connection exported between room 88 and rear balancing gate pit (Hinterdruckkammer) 100.
After the water flow in input room 86 arrives pressure-reducing valve 92 by the path 102 in middleware 96.When exporting the output pressure in room 88 and declining, as when opening tap and making water flow out (beim Zapfen von wasser), the valve disc 104 of pressure-reducing valve 92 moves downward due to the spring pressure of spring 106, and valve 92 is opened, until re-establish the output pressure of adjustment.
Structure with the reducer assemblage of coupling arrangement 12 and adaptor 82 is particularly advantageous, although because stream guides complexity, but coupling arrangement may be made in the hot extrude casting die of the low cost be made up of brass in addition.On the one hand, the application of independent adaptor 82 avoids the manufacture costly as foundry goods.On the other hand, the application of independent adaptor 82 also makes in material, save cost becomes possibility, because adaptor can be made of plastics when not having loss function.

Claims (9)

1. one kind be used for filtering drinking water can the filter assemblies (10) of back flush, this filter assemblies (10) comprising:
A () is with import (20) and the coupling arrangement (12) exporting (22), this coupling arrangement (12) is used for described filter assemblies (10) to be arranged in drinking water pipeline, and this coupling arrangement is with the pipe joint (24) being molded in downside place;
B () is arranged on the filter cup (14) at the pipe joint place at the downside place being in described coupling arrangement (12), this filter cup (14) is arranged between described import (20) and described outlet (22) with reference to stream;
The closable outlet (56) of (c) lower end in the bottom (28) of described filter cup (14);
D () is coaxially arranged in described filter cup (14), basic is columniform filter element (16), the interior zone of this filter element (16) is connected with described outlet (22) on top, and this filter element (16) has the closed bottom (38) of continuous print in lower end, wherein between the downside and the bottom (28) of filter cup of the bottom (38) of filter element, be formed with bottom space (44), this bottom space is connected with outlet;
E () is formed with the cavity (58) of basic ring-type between described filter cup (14) and described filter element (16), the upper area of this cavity (58) is connected with described import (20), thus time in working order, water from described import (20) downwards and flow to the interior zone of described filter element (16) by described filter element (16);
F () is provided with at least one passage (68) opened wide towards described filter element (16) in described cavity (58), this passage (68) bottom space (44) is connected with described outlet (56) below filter element, thus in back flush state when described outlet is opened, can produce from described filter element (16) inside by the stream of described passage (68) towards described outlet (56); And
G () described filter element (16) is can support around the mode of longitudinal axis, thus can move along described passage (68) in the surface of described filter element (16),
H the interior zone of () wherein said filter element is completely empty, and described filter element (16) only by with cylinder type filter net, the filtration rib (34) extended in the circumferential or other can being formed by the supporter of percolation of filtering material of back flush.
2. filter assemblies according to claim 1, is characterized in that, described filter element (16) with can be connected from the regulating handle of external control (50).
3. filter assemblies according to claim 2, it is characterized in that, described filter element (16) has hollow projections (39) in lower end, and this hollow projections (39) extends through the bottom (28) of described filter cup (14) and is directly or indirectly connected with described regulating handle (50) in the mode of form fit.
4. filter assemblies according to claim 3, it is characterized in that, under described filter element (16), be formed with the bottom space (44) be connected with described cavity (58) at bottom (28) place of described filter cup (14), this bottom space (44) is connected with described outlet (56) by the path (42) in the inside of described hollow projections (39).
5. according to filter assemblies in any one of the preceding claims wherein, it is characterized in that, described passage (68) is formed by two ribs (66), this rib (66) extends internally in radial directions on the height of described filter element (16), and is molded in the inner side place of described filter cup (14).
6. the filter assemblies according to any one of aforementioned claim 1-4, it is characterized in that, described coupling arrangement (12) has closable pipe joint, can insert pressure reducer cylinder (18) for the output pressure controlled at described outlet (22) place in this pipe joint.
7. filter assemblies according to claim 6, it is characterized in that, described pipe joint is relative to described filter cup (14) and be coaxially arranged on the side relative with described filter element (16) with described filter cup (14) of described coupling arrangement (12) relative to described filter element (16).
8. filter assemblies according to claim 6, is characterized in that,
A () is provided with adaptor (82) between described pressure reducer cylinder (18) and described coupling arrangement (12), can insert described pressure reducer cylinder (18) and this adaptor (82) puts on described closable pipe joint in this adaptor (82);
B () wherein, described adaptor (82) has wall portion (90), for being separated the input room (86) be connected with described filter interior and the output room (88) be connected with described outlet (22); And
C () described pressure reducer cylinder (18) utilizes the middleware (96) with pressure-reducing valve (92) to be sealably inserted in the accommodation section formed by the outer wall portion (94) of described wall portion (90) and described adaptor (82).
9. the filter assemblies according to any one of aforementioned claim 1-4, is characterized in that, is provided with closable opening to be used for connecting Pressure gauge in described coupling arrangement (12).
CN201010539194.4A 2009-10-30 2010-10-29 Filter assembly Active CN102068849B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202009013661.2 2009-10-30
DE202009013661U DE202009013661U1 (en) 2009-10-30 2009-10-30 A filter assembly

Publications (2)

Publication Number Publication Date
CN102068849A CN102068849A (en) 2011-05-25
CN102068849B true CN102068849B (en) 2015-06-10

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CN201010539194.4A Active CN102068849B (en) 2009-10-30 2010-10-29 Filter assembly

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CN (1) CN102068849B (en)
DE (1) DE202009013661U1 (en)
RU (1) RU2545586C2 (en)

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DE202009015673U1 (en) 2009-12-01 2011-04-14 Hans Sasserath & Co. Kg Reducer assembly
DE202011051425U1 (en) 2011-09-23 2013-01-08 Hans Sasserath & Co. Kg Reducer assembly
GB2559940B (en) * 2015-12-17 2019-12-11 Rigdeluge Global Ltd A sprinkler system
DE202015106890U1 (en) 2015-12-17 2017-03-20 Hans Sasserath Gmbh & Co. Kg backwash filter
DE202016101941U1 (en) 2016-04-13 2017-07-17 Hans Sasserath Gmbh & Co Kg Reducer assembly
DE202016103116U1 (en) 2016-06-13 2017-09-17 Hans Sasserath Gmbh & Co Kg A filter assembly
RU182998U1 (en) * 2017-02-20 2018-09-07 Александр Вадимович Утин LIQUID CLEANING FILTER
CN108568144B (en) * 2017-03-09 2021-11-19 汉斯萨塞拉思有限责任两合公司 Back flushing filter
DE202017103177U1 (en) * 2017-05-26 2018-08-28 Hans Sasserath Gmbh & Co Kg Fitting arrangement with combination fitting and water treatment unit
DE202017104365U1 (en) * 2017-06-01 2018-09-04 Hans Sasserath Gmbh & Co. Kg Pressure reducer filter arrangement
DE202017107783U1 (en) 2017-12-20 2019-03-25 Hans Sasserath Gmbh & Co. Kg Backwash filter arrangement
ES2914980T3 (en) 2019-08-19 2022-06-20 Alfa Laval Moatti Filter unit with improved cover assembly
DE202021101292U1 (en) 2020-12-08 2022-03-16 Hans Sasserath Gmbh & Co. Kg. Pressure reducer assembly with connector for connection to a pipeline
DE202022103417U1 (en) 2022-06-20 2023-10-09 Hans Sasserath Gmbh & Co. Kg. Pressure reducer arrangement with connection part for connecting to a pipeline

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EP0154726A2 (en) * 1984-03-15 1985-09-18 Judo Wasseraufbereitung GmbH Backwash filter
EP0309743A2 (en) * 1987-10-02 1989-04-05 Judo Wasseraufbereitung GmbH Backwash filter
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CN101524602A (en) * 2008-03-03 2009-09-09 汉斯萨塞拉思有限责任公司 Filter capable of backwashing

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RU2329085C1 (en) * 2007-02-06 2008-07-20 Владимир Алексеевич Большаков Edge knife filter

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Publication number Priority date Publication date Assignee Title
US4090962A (en) * 1976-10-12 1978-05-23 Braukmann Armaturen A.G. Reverse flushing filter device
EP0154726A2 (en) * 1984-03-15 1985-09-18 Judo Wasseraufbereitung GmbH Backwash filter
EP0309743A2 (en) * 1987-10-02 1989-04-05 Judo Wasseraufbereitung GmbH Backwash filter
DE102006029544A1 (en) * 2006-06-26 2007-12-27 Judo Wasseraufbereitung Gmbh Backwashing water filter used for preparing drinking water in the home comprises one surface having a germ-killing coating and moving relative to a sieving filter insert and suction units arranged in an inlet chamber
CN101524602A (en) * 2008-03-03 2009-09-09 汉斯萨塞拉思有限责任公司 Filter capable of backwashing

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RU2010144305A (en) 2012-05-27
CN102068849A (en) 2011-05-25
DE202009013661U1 (en) 2011-03-17
RU2545586C2 (en) 2015-04-10

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Conclusion of examination: Claim 1-2 of No. 201010539194.4 invention and the technical solution of Claims 5-7 and 9 referring to Claims 1-2 are declared invalid, and the patent continues to be valid on the basis of Claims 3-4, Claims 8 and Claims 5-7 and 9 referring to the technical solution of Claims 3-4

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