CN201618450U - Compressible filter and compressible filter mounting device - Google Patents
Compressible filter and compressible filter mounting device Download PDFInfo
- Publication number
- CN201618450U CN201618450U CN2009202142571U CN200920214257U CN201618450U CN 201618450 U CN201618450 U CN 201618450U CN 2009202142571 U CN2009202142571 U CN 2009202142571U CN 200920214257 U CN200920214257 U CN 200920214257U CN 201618450 U CN201618450 U CN 201618450U
- Authority
- CN
- China
- Prior art keywords
- filter
- pleat
- end cap
- filter medium
- bracing frame
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a compressible filter, which consists of a hollow filter element and a support, wherein the filter element which is compressible, combustible, non-elastic, hollow and cylindrical comprises annular wrinkled filter medium and is provided with a rigid end cap hermetically connected to the wrinkled filter medium, the outer side of the filter element is enclosed by the support without bypasses and does not belong to the filter element, the support comprises a perforated plate forming a cylinder, each end of the cylinder is provided with an end cap, and a flanged end at the top of the support and the top end cap of the cylindrical filter element are sealed between supporting casings via a sealing ring, thereby preventing flow leaking from the tail end of the filter medium.
Description
Technical field
The utility model relates to filter, particularly fluid filter element (fluid filter cartridges) and be used for the device of fluid-encapsulated filter core.
Background technology
Be used to filter the fluid filter element (fluid flter cartridges) of fluid, more particularly the notion of columniform fluid filter element is well known in the prior art.
In general, filter core comprises a columniform outer support member, a pair of end cap, a filter medium, an inner support core and an outside filter screen.Be different from a bag type filter (bag-type filters), filter core keeps its cylinder form, so that filter core can be directly installed in the columniform housing.One of advantage of filter core is that the filter medium (pleated filter media) that the wall of filter core can have been used pleat is made.The filter medium that plays pleat has the big surface area that is used for from the filtering flow material.
U.S. Pat 3,078,650 show a kind of typical filter core, it has a sheet metal supporting core filter screen that is installed in filter core inside.
U.S. Pat 4,878,930 show the filter core of an inner wire support frame of a kind of use.
U.S. Pat 4,522,719 show a kind of filter element, its core at filter has the cylindrical support pipe.
U.S. Pat 2,269,461 show a kind of respirator filter, its use is mounted to the supporting core that end cap inserts body.
U.S. Pat 2,220,706 show a kind of cylindrical filter element of external metallization that has.
U.S. Pat 2,739,916 show a kind of filter core, have the rigid tubular element 13 that is used to support filter element on every side that has many holes.
U.S. Pat 4,075,106 show the flat board that is used for supporting at filter core independent filter element.
U.S. Pat 3,716,436 show a kind of filter core with the supporting core that has the hole in it.
U.S. Pat 3,505,794 show a kind of filter element with the inner support that is used for fold.
U.S. Pat 4,130,487 show a kind of filter core with inside and outside support cylinder body.
U.S. Pat 4,154,688 show another kind of filter element with inside and outside support component.
U.S. Pat 4,184,966 show a kind of tube element with inner support core.
U.S. Pat 4,464,263 show a kind of filter core with the external support core that contains perforation.
Title shows a kind of filter core for the handbook of " 3M company brand fluid filter element (3M Brand Liquid Filter Cartridges) ", and it comprises a kind of external support filter screen and a kind of inner support core.This filter core though can burn, is not easy to compress and is used to abandon, because filter core contains a kind of inner support core.
By contrast, for identical given size, the bag type filter has less given surface area, because they have not comprised the sidewall of pleat.It is in the application of problem that the bag type filter generally uses abandoning.That is to say that sack is generally made by the material of softness, take the less space of throwing aside than filter core, because filter core comprises inside or external support filter screen, this has got rid of filter core can be compressed the possibility that is used to abandon easily.By a compressible stiff filter core that does not comprise any inner support core or external support filter screen is provided, the utility model provides the improvement to the prior art filter core.The combining of use of the disappearance of one inner support core and the material that can flatten in end housing and filtering material allows filter core to be compressed, and therefore can dispose at low cost.
The utility model content
The purpose of this utility model is to have overcome above-mentioned shortcoming of the prior art, provide a kind of simple and practical, cost is lower, stable and reliable working performance, the compressible comparatively widely filter of the scope of application and compressible filter installation device.
In order to realize above-mentioned purpose, compressible filter of the present utility model and compressible filter installation device have following formation:
This comprises the hollow filter element combined and the compressible filter of bracing frame, and its main feature is to comprise:
A unbypassed bracing frame, described unbypassed bracing frame comprises cylinder and top end cover with flange of a perforation, described flange comprises that one has a closure gasket groove and its and is built-in with first an of sealing ring, described flange comprise one with described first relative second, described second face comprises that a closure gasket groove and its are built-in with a sealing ring, and described unbypassed bracing frame has an internal diameter;
One is used for from the filter medium of the pleat of the filtering flow particle that flows through, the filter medium of described pleat has a central region and allows unfiltered fluid to enter the downstream, fluid after the filtration comes out therefrom, the filter medium of described pleat comprises a first end, and the filter medium of described pleat has an external diameter;
One first end cap is positioned on the described first end of filter medium of described pleat;
A flange, be positioned on described first end cap of filter medium of described pleat, have one first annular seal surface at the described flange on described first end cap and form the sealing contact around being used for being positioned at described first end cap on the described first end of filter medium of described pleat, with filter medium and the described top end cover that seals described pleat, the described external diameter that the described internal diameter of described unbypassed bracing frame is a bit larger tham the filter medium of described pleat slides in the described unbypassed bracing frame with the filter medium that allows described pleat, thereby when the fluid of pressurized is forced through the filter medium of described pleat, allow described unbypassed bracing frame provide radial support to described pleat filter medium and;
A device, be used for to be positioned at described flange on described first end cap of filter medium of described pleat and the described flange on the described unbypassed bracing frame and fix, spill from the filter medium of described pleat to prevent unfiltered fluid with sealing relationship.
This comprises that first end cap in the compressible filter of the hollow filter element combined and bracing frame can be polypropylene end cap, nylon end cap, polyester end cap or polyethylene end cap.
This comprises that the filter medium that plays pleat in the compressible filter of the hollow filter element combined and bracing frame is crushable, is used for the abandoning of filter medium of described pleat to reduce volume.
This prevents that unfiltered fluid from getting around the unbypassed compressible filter installation device of a filter medium, and its main feature is to comprise:
The cylinder filter support component of a perforation has a first end and a second end, and the cylinder filter support component of described perforation is used to provide the radial support of outside;
An end cap, be positioned on the described first end of cylinder filter support component of described perforation, described end cap has a flange that radially outward protrudes in the cylinder filter support component of described perforation, described flange comprises first of having a closure gasket groove and a sealing ring, to allow a filter core flange to seal there, with one with described first relative second, described second face comprises a closure gasket groove and a sealing ring, allowing described second to one support housing of sealing, spill and not have filtration thereby the cylinder filter support component of described perforation and described sealing ring acting in conjunction prevent the cylinder filter support component of unfiltered fluid by described perforation.
The compressible filter and the compressible filter installation device of this utility model have been adopted, because compressible inelastic, hollow, the columniform filter element that maybe can burn comprising one three part, the filter medium that plays pleat that it comprises an annular has the end cap of the filter medium that has been connected to pleat hermetically.The outside of filter element is surrounded by the unbypassed bracing frame that is not the part of filter element, and bracing frame comprises formation one cylindrical perforated sheets.By sealing ring the end cap of bracing frame and the top end cover of columniform filter element are sealed between the support housing, thereby prevent that fluid from spilling by filter medium, simple and practical, cost is lower, stable and reliable working performance, the scope of application are comparatively extensive.
Description of drawings
Fig. 1 is the perspective view of filter core of the present utility model and bracing frame housing.
Fig. 2 is the vertical sectional view of filter core and housing shown in Figure 1.
Fig. 3 is the perspective view of the alternative body of filter core of the present utility model.
Fig. 4 is the phantom of filter core shown in Figure 3.
Fig. 5 is the upward view of filter core shown in Figure 3.
Fig. 6 is the amplification view of the filter medium that plays pleat of filter core shown in Figure 3.
Fig. 7 is for the explanation support housing with to seal the enlarged drawing that set-up mode is locked in the filter in the support housing.
Fig. 8 is the disposable element that will be extruded of the present utility model.
Fig. 9 is the disposable element that just is being extruded of the present utility model.
Figure 10 is the disposable element that is in state compression and that flatten that is used to be discarded in landfill of the present utility model.
The specific embodiment
In order more to be expressly understood technology contents of the present utility model, describe in detail especially exemplified by following examples.
See also shown in Figure 1ly, the general sign of drawing reference numeral 10 improved crushable filter core of the present utility model comprises the hollow columniform filter element 13 that plays pleat of a bottom head covers 12, a top end cover 11 and an annular.Top end cover 11 has a fluid inlet port 19 therein, and an end of the hollow columniform filter element 13 that plays pleat of annular is fixed to end cap 11, and the other end is fixed to end cap 12.The hollow columniform filter element 13 that plays pleat comprises the filter medium that plays pleat of an annular shape, and has the rigid end cap 11 and 12 of the end of the filter element 13 that has been connected to pleat hermetically.End cap 12 be close in case the fluid stopping body flow through, another end cap be open to allow the inside of liquid inflow filter filter core 13.In preferred specific embodiment, filter element 13 is preferably made with an appropriate resin adhesive (resinbinder) by compressible and material such as synthetic fibers (synthetic fibers), polyethylene (polyethylene), polyester fiber (polyester), nylon (nylon), cellulose (cellulose), polypropylene (polypropylene) or glass fibre (glass fiber) that can burn.Similarly, end cap 11 and 12 is preferably made by compressible and material such as polyethylene, polypropylene or nylon that can burn.
Making filter core is to alleviate waste disposal problem by the purpose that compressible and material that can burn are made fully.When filter core is when being made by the material that can burn, the user has and burns whole filter element or flatten the selection that filter element is used to be placed on landfill, does not go to stop compression because filter element does not comprise a kind of inner support core.That is to say that easily the filter core 10 of compression is by three kinds of compressible construction packages only, promptly end cap 11, end cap 12 and the filter element 13 that plays pleat are formed.
Except be disposable, top end cover 11 of the present utility model comprises a kind of sealing device, it comprises a flange 18, makes filter core can be sealed to a kind of bracing frame housing 30.Top end cover 11 comprises a plane 15, has a conical taper 16 enters filter element 10 with pilot fluid central core position.As noted, filter core 13 is unique, because it comprises only three construction packages: the filter element 13 and the bottom head covers 12 of top end cover 11, a pleat.Fig. 2 shows does not have the inner support core to be positioned at filter core 10, and also the neither one external filter supports the outside that filter screen is positioned at filter core 10.Fig. 1 and Fig. 2 illustrate a kind of bracing frame housing or support basket 30 and be used for placing therein filter core 10.Support basket 30 and comprise a cylindrical elements 31 that wherein has perforation 32.
Supporting basket 30 and filter core 10 is shown in more detail among Fig. 2.End cap 12 comprises that has the base section 12 that spill is inserted body 20, and spill is inserted body 20 and only extended to the interior section of the filter element 13 of the annular that plays pleat.Crown member 11 comprises an outward extending flange 15, has sealing surface 18 and sealing surface 17 radially of the annular of a bottom, is used for forming sealing with a support filter screen or unbypassed bracing frame housing 30 and contacts.Bracing frame housing 30 comprises that a slice forms metal or plastic sheet 31 that every end all has the cylindrical perforation of an end cap.Bottom head covers 33 is flat and closes that top end cover 37 is opened.End cap 37 comprises the flange 29 of an annular, and the bottom of flange 29 has the seal groove 35 of an annular, and the top of flange 29 has the seal groove 36 of an annular.Metal screen 31 is that integral body is connected to flange 29, forms a radially outer support and is used for filter core 10.That is to say that the support filter screen that filter core 10 does not comprise the outside of any integral body outwards expands under fluid pressure to prevent filter element 13, and in fact the radial support that is provided by filter screen 31 is provided.
The end cap of the injection mo(u)lding of rigidity allows to select from multiple plastic thermoplastic a kind of, so that the various fluid chemistry compatibilities that will filter to be provided.For example, thermoplastic can be polypropylene, polyethylene, terylene, polyester fiber, polytetrafluoroethylene (PTFE) (polytetrafluoreythylene), Kynoar (polyvinylidene fluoride), polyamide (polyamideimide) and other.When selecting encapsulant, the use of Mi Feng O type ring also provides than the more selection of filter fully, and wherein end cap is made by a kind of plastic elastomeric material, and filter medium is contained in the end cap.(pottable) elastomer flexible, that can adorn is limited to compound, as polyurethane (urethane) and plastisol (plastisols), the chemical compatibility of broad range can not be provided, and it is provided by adoptable dissimilar material in O type ring such as nitrile (nitrile), silica gel (silicone), EPDM (ethylene propylene diene), polytetrafluoroethylene (PTFE), neoprene (neoprene), isoprene (isoprene), fluorosilicone (fluorosilicone) or fluorubber (perfluoroelastomers) and other.
With reference to figure 3, wherein showed an alternative specific embodiment of filter element, by numeral 50 signs.Filter element 50 is except end cap 51 comprises interior handle 52 and 53, and is identical with filter element 10. Handle 52 and 53 comprises the section linear element (segment-like members) on the inside that is formed on end cap 51.Filter core 50 comprises three assemblies that can burn: top end cover 51, filter medium 54 and lower end cap 55.These features more clearly illustrate in Fig. 4 as proving therein, both do not had the external support filter screen also to be used for filter core 50 without any the inner support core.
Fig. 5 has illustrated the end cap of closing 55 of the bottom of containing reinforcement 55a, b, c, d and e, Fig. 6 has illustrated the amplification view of annular filter medium 54, comprises each fold 58 that is formed by a first particulate filter medium 58b and one second granule filter medium 58a.
Improved sealing device is presented among Fig. 7, and drawing reference numeral 10 signs are arranged in the hollow filter element of Fig. 2 of bracing frame 30.Hollow filter element 10 is fixed in the housing 87 with a kind of leakproof relation, prevents that unfiltered fluid from spilling around the end of filter element 10.That is to say that hollow filter element 10 and bracing frame 30 actings in conjunction go to prevent that to comprise device fluid from spilling by the edge of filter medium 13, thereby guarantee that the fluid that filters will only flow to inlet port 16 and also radially outward flow out by filter medium 13.Fig. 7 has shown this assembly, comprises unbypassed bracing frame 30, has metal or plastic sheet 31 that forms a cylindrical perforation and the flange 29 that is fixed on the annular in the housing 87 by bolt 88, flat board 86 and nut 89.The bottom surface of flange 29 comprises circular closure gasket groove 35.What be positioned at closure gasket groove 35 is the bottom that the sealing ring 84 of a circle removes seal casinghousing 87 and flange 29.The end face of flange 29 also comprises the closure gasket groove 36 of a circle.What be positioned at closure gasket groove 36 is that the sealing ring 86 of a circle removes the top of sealing flange 19 and the ring surface 18 of filter element 10.
Fig. 7 shows that the internal diameter of bracing frame filter screen 31 is bigger slightly than the external diameter of hollow filter core 13 and lower end cap 12, thereby allows filter core 13 to slide in the bracing frame 30.The top flange 18 of end cap 11 and flange 29 demonstrations closely are clipped between top board 86 and the base plate 87 by bolt 88, and each bolt has a screw thread 88a and a nut 89.In the normal operation of device, fluid mobile (as shown by arrows) arrives the central region of filter core 10, then by the wall that plays pleat of filter core 13 and 32 outflows radially outward of boring a hole.If the inlet port fluid is in greater than under the pressure that exports fluid, the filter core 13 of a neither one inner support core or an inner support core may radially outward expand and break.In order to prevent breaking of filter medium, the utility model has adopted reusable housing filter screen 31, goes to provide the support of necessity, breaks to prevent filter element 13.In order to prevent spilling of unfiltered fluid, the utility model has used at sealing area on the flange 29 and on the sealing surfaces on the end cap 11.
Therefore, thereby filter core 10 provides external support with housing 87 actings in conjunction for filter core 10 with support basket 30, and flanged end cap 11 allows the sealing of filter cores 10, spills on every side by the end of filter core element to prevent unfiltered fluid.That is to say, be positioned at end cap 11 and 37 around be the doughnut 90 that a fluid can enter.Note that and represent to leak arrow in chamber 90 into any unfiltered fluid of chamber 90 can not leak into outside the filter screen 31, because sealing ring has stoped fluid by being sealed in the end cap in the housing.
Filter core 10 loses after the usefulness, removes filter core 10 and filter screen 31 is retained in the housing 87.Referring to Fig. 8,9 and 10, useless filter core 10 demonstrations are positioned on the support plate 41, and compression dull and stereotyped 40 will be lowered to be pressed on the filter core 10 and be used to abandon to compress it.Because filter core does not contain any inside or outside core, filter core 10 is easy to compress.Fig. 9 has illustrated that compression dull and stereotyped 40 is used to abandon with the hollow 10 one-tenth a kind of compressive states of filter core of 41 compressions.Figure 10 has shown that compression dull and stereotyped 40 separates with the filter core that is used to abandon 10 that is in a kind of compressive state with 41.Therefore, one of characteristics of the present utility model are the filter cores that a kind of stiff hollow filter medium by playing pleat that burn or compressible forms, and have the still compressible end cap that has been sealingly connected to the filter medium of pleat of rigidity.Another characteristics of the present utility model are unbypassed bracing frames, comprise the metal or the plastic sheet of perforation, prevent that any unfiltered fluid from spilling, because stop the fluid that filters by around the end of filter core in the pair of seal rings on the bracing frame.
Above-mentioned compressible filter and compressible filter installation device have been adopted, because compressible inelastic, hollow, the columniform filter element that maybe can burn comprising one three part, the filter medium that plays pleat that it comprises an annular has the end cap of the filter medium that has been connected to pleat hermetically.The outside of filter element is surrounded by the unbypassed bracing frame that is not the part of filter element, and bracing frame comprises formation one cylindrical perforated sheets.By sealing ring the end cap of bracing frame and the top end cover of columniform filter element are sealed between the support housing, thereby prevent that fluid from spilling by filter medium, simple and practical, cost is lower, stable and reliable working performance, the scope of application are comparatively extensive.
In this specification, the utility model is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from spirit and scope of the present utility model.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (4)
1. one kind comprises the hollow filter element combined and the compressible filter of bracing frame, it is characterized in that, comprising:
One unbypassed bracing frame, described unbypassed bracing frame comprises that the cylinder and of a perforation has the top end cover of flange, described flange comprises that one has a closure gasket groove and its and is built-in with first an of sealing ring, described flange comprise one with described first relative second, described second face comprises that a closure gasket groove and its are built-in with a sealing ring, and described unbypassed bracing frame has an internal diameter;
One is used for from the filter medium of the pleat of the filtering flow particle that flows through, the filter medium of described pleat has a central region and allows unfiltered fluid to enter the downstream, fluid after the filtration comes out therefrom, the filter medium of described pleat comprises a first end, and the filter medium of described pleat has an external diameter;
One first end cap is positioned on the described first end of filter medium of described pleat;
One flange, be positioned on described first end cap of filter medium of described pleat, have one first annular seal surface at the described flange on described first end cap and form the sealing contact around being used for being positioned at described first end cap on the described first end of filter medium of described pleat, with filter medium and the described top end cover that seals described pleat, the described external diameter that the described internal diameter of described unbypassed bracing frame is a bit larger tham the filter medium of described pleat slides in the described unbypassed bracing frame with the filter medium that allows described pleat, thereby when the fluid of pressurized is forced through the filter medium of described pleat, allow described unbypassed bracing frame provide radial support to described pleat filter medium and;
One device is used for fixing with sealing relationship being positioned at described flange on described first end cap of filter medium of described pleat and the described flange on the described unbypassed bracing frame, spills from the filter medium of described pleat to prevent unfiltered fluid.
2. the hollow filter element combined and the compressible filter of bracing frame of comprising according to claim 1 is characterized in that described first end cap is polypropylene end cap, nylon end cap, polyester end cap or polyethylene end cap.
3. the hollow filter element combined and the compressible filter of bracing frame of comprising according to claim 1, it is characterized in that, the filter medium of described pleat is crushable, is used for the abandoning of filter medium of described pleat to reduce volume.
4. one kind prevents that unfiltered fluid from getting around the unbypassed compressible filter installation device of a filter medium, it is characterized in that, comprising:
The cylinder filter support component of one perforation has a first end and a second end, and the cylinder filter support component of described perforation is used to provide the radial support of outside;
One end cap, be positioned on the described first end of cylinder filter support component of described perforation, described end cap has a flange that radially outward protrudes in the cylinder filter support component of described perforation, described flange comprises that one has a closure gasket groove and a sealing ring first, to allow a filter core flange to seal there, with one with described first relative second, described second face comprises a closure gasket groove and a sealing ring, with allow sealing described second to a support housing, spill and not have filtration thereby the cylinder filter support component of described perforation and described sealing ring acting in conjunction prevent the cylinder filter support component of unfiltered fluid by described perforation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202142571U CN201618450U (en) | 2009-11-27 | 2009-11-27 | Compressible filter and compressible filter mounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202142571U CN201618450U (en) | 2009-11-27 | 2009-11-27 | Compressible filter and compressible filter mounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201618450U true CN201618450U (en) | 2010-11-03 |
Family
ID=43021906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202142571U Expired - Fee Related CN201618450U (en) | 2009-11-27 | 2009-11-27 | Compressible filter and compressible filter mounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201618450U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104083923A (en) * | 2014-07-22 | 2014-10-08 | 杭州费尔过滤技术有限公司 | Filter element and filter |
| CN108568146A (en) * | 2018-06-05 | 2018-09-25 | 新乡平原航空液压设备有限公司 | Filter and its filter core |
-
2009
- 2009-11-27 CN CN2009202142571U patent/CN201618450U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104083923A (en) * | 2014-07-22 | 2014-10-08 | 杭州费尔过滤技术有限公司 | Filter element and filter |
| CN104083923B (en) * | 2014-07-22 | 2015-11-25 | 杭州费尔过滤技术有限公司 | A kind of filter core and filter |
| CN108568146A (en) * | 2018-06-05 | 2018-09-25 | 新乡平原航空液压设备有限公司 | Filter and its filter core |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5250179A (en) | Compactable filter and compactable filter mounting means | |
| JP5283776B2 (en) | Filter cartridge housing mounting system | |
| CA2155414C (en) | Compressible differential pressure energized seals for filter elements and the like | |
| US7513925B2 (en) | Filters | |
| CN101500678B (en) | Quick-drain filter | |
| US20060107638A1 (en) | High efficiency, low restriction, cost effective filter | |
| CN102481498B (en) | Filter | |
| CN1775340A (en) | Fluid filter having filter basket and method | |
| MX2007004529A (en) | Filter element . | |
| JPH08215507A (en) | Exchangeable fluid filter assembly | |
| CN100482312C (en) | Fluid filter having changeable circular filter element and idle motion device | |
| US7846329B2 (en) | Liquid filter | |
| CN201618450U (en) | Compressible filter and compressible filter mounting device | |
| US5776342A (en) | Filter assembly | |
| AU2008242369B2 (en) | Improved sealing for liquid filter | |
| CN105443192A (en) | Oil filter | |
| US20030094408A1 (en) | Length-adjustable filter cartridges | |
| CN108601997A (en) | Filter cell and fluid filter | |
| CA2457240C (en) | Improved sealing mechanism and filter cartridge with improved sealing mechanism | |
| US20040075221A1 (en) | Inlet flange and seal for a collapsible filter element | |
| US5639369A (en) | Filter element | |
| US7799219B2 (en) | Filter and method of making | |
| EP4342565A1 (en) | Gas filter system | |
| JP7463810B2 (en) | Water purification cartridges and water purifiers | |
| JP5055107B2 (en) | Discharge container |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SUZHOU BINTEER WATER TREATMENT CO., LTD. Free format text: FORMER OWNER: PENTAIR TRADE (SHANGHAI) CO., LTD. Effective date: 20130502 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200052 CHANGNING, SHANGHAI TO: 215129 SUZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130502 Address after: 215129 No. 371 ho Shan Road, hi tech Zone, Jiangsu, Suzhou Patentee after: SUZHOU PENTAIR WATER TREATMENT CO., LTD. Address before: 21, 200052, Cloud Nine Plaza, No. 1118, West Yan'an Road, Shanghai, Changning District Patentee before: Pentair Trade (Shanghai) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20141127 |
|
| EXPY | Termination of patent right or utility model |