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1. 发明公开

EP2895248A4 FILTER SYSTEM WITH INTEGRAL MEDIA RETAINER SEAL 审中-公开
标题翻译：与一体式媒体的保持密封过滤系统
公开(公告)号：EP2895248A4
公开(公告)日：2016-11-02
申请号：EP13837689
申请日：2013-09-13
申请人： XYLEM WATER SOLUTIONS ZELIENOPLE LLC
发明人： SWEENEY HOWARD JAMES , BATES BRIAN J
IPC分类号： B01D24/12 , B01D24/22 , B01D24/24 , B01D29/11 , B01D35/30
CPC分类号： B01D24/22 , B01D24/24 , B01D2201/34 , B01D2201/342

2. 发明公开

EP2895248A1 FILTER SYSTEM WITH INTEGRAL MEDIA RETAINER SEAL 审中-公开
标题翻译：与一体式媒体的保持密封过滤系统
公开(公告)号：EP2895248A1
公开(公告)日：2015-07-22
申请号：EP13837689.2
申请日：2013-09-13
申请人： Xylem Water Solutions Zelienople LLC
发明人： SWEENEY, Howard, James , BATES, Brian, J.
IPC分类号： B01D24/12 , B01D35/30 , B01D29/11
CPC分类号： B01D24/22 , B01D24/24 , B01D2201/34 , B01D2201/342
摘要： A filter system having a filter media retainer seal includes: at least one underdrain block having a top wall, a bottom wall, and a pair of side walls extending between the top wall and the bottom wall; a filter media retainer mounted onto the top wall of the at least one underdrain block; and at least one rib positioned between the underdrain block and the filter media retainer. The at least one rib forms a seal between the underdrain block and the filter media retainer, and prevents filter media from entering the underdrain block. The at least one rib can be monolithically formed to the at least one underdrain block. Alternatively, the at least one rib is monolithically formed to the filter media retainer. The rib is crushable and/or it bites into a surface on the adjoining part to reduce or eliminate the need for a separate sealant.

3. 发明授权

EP2279781B1 Filter devices including a porous body 失效
标题翻译：用多孔质体的过滤装置
公开(公告)号：EP2279781B1
公开(公告)日：2014-11-12
申请号：EP10185278.8
申请日：2005-09-20
申请人： Pentair Water Pool and Spa, Inc.
发明人： Goodwin, Timothy Michael , Yahnker, Christopher R. , Swindell, Robert Frank , Schaller, Bret, Schaller, Bret , Bromley, Arthur J.
IPC分类号： B01D24/14
CPC分类号： B01D29/15 , B01D24/105 , B01D24/14 , B01D24/24 , B01D24/42 , B01D24/4631 , B01D29/33 , B01D29/52 , B01D2201/0415 , B01D2201/0469 , B01D2201/188 , B01D2201/291 , B01D2201/4015 , B01D2201/4023
摘要： Fluid filter devices include at least one porous body. In one example, the fluid filter device can be incorporated as part of a fluid filter apparatus. The fluid filter apparatus can include a container defining an interior area wherein the filter device is positioned within the interior area. Particulate can be positioned within the interior area to cover the porous body to enhance the filter capabilities of the fluid filter apparatus.

4. 发明公开

EP2525887A2 APPARATUS AND METHOD FOR SECURING UNDERDRAIN FILTER BLOCK 有权
标题翻译：装置和方法用于保护的排水过滤块
公开(公告)号：EP2525887A2
公开(公告)日：2012-11-28
申请号：EP11733524.0
申请日：2011-01-18
申请人： Xylem Water Solutions Zelienople, LLC
发明人： BERKEBILE, Dean, T. , BRUCE, Daniel, E. , BALL, Christopher, J.
IPC分类号： B01D24/22 , B01D24/46
CPC分类号： B01D23/24 , B01D24/24 , B01D24/4631 , Y10T29/49826 , Y10T29/49828
摘要： An underdrain filter block for use in draining and backwashing a filtering media in a filter bed includes a top wall, a pair of side walls extending from the top wall, and a bottom wall extending between the pair of side walls. The top wall, the pair of side walls, and the bottom wall define an upper portion and a lower portion. The lower portion includes a grout chamber having a plurality of openings defined by at least one of the bottom wall and the pair of side walls.

5. 发明公开

EP1997546A2 Geometrically variable filter underdrain header 审中-公开
标题翻译： Geometrisch变量Filterabflusskopfstück
公开(公告)号：EP1997546A2
公开(公告)日：2008-12-03
申请号：EP07022266.6
申请日：2007-11-16
申请人： WEATHERFORD/LAMB, INC.
发明人： Ekholm, Michael R. , Watson, Mark E. , Steinke, Thomas J.
IPC分类号： B01D24/24
CPC分类号： B01D24/24 , B01D24/4631 , B01D2201/44
摘要： An embedded geometrically variable filter underdrain header and a method for constructing such a filter. Often the variation is a decrease in cross section along the header from the backwash media source, which avoids a pressure loss as liquid is diverted to the laterals along the header. The header is formed inside a filter underdrain basin and is embedded in the basin. The method for constructing the basin and header includes providing a mold for the basin and the header and filling the molds with concrete by pouring concrete into the area between the interior of the mold for the basin and the exterior of the mold for the header. After the concrete cures, the mold for the basin may or may not be removed, while the mold for the header is kept in place.
摘要翻译：一种嵌入式几何可变滤波器底划线头和一种构造这种滤波器的方法。通常，变化是沿着反冲洗介质源的集管的横截面减小，这避免了当液体沿着集管被转移到侧壁时的压力损失。头部形成在过滤器底盘下面并嵌入盆中。用于构造盆和集管的方法包括：将混凝土浇注到用于盆地的模具的内部和用于集管的模具的外部之间的区域中，为盆地和集管提供模具并填充模具。在混凝土固化后，盆的模具可以被移除，也可以不被移除，而用于集管的模具保持在适当的位置。

6. 发明授权

EP0888800B1 Drainageelement zu rückspülbaren Filterbecken 失效
标题翻译：排水可冲洗过滤池
公开(公告)号：EP0888800B1
公开(公告)日：2003-12-10
申请号：EP97810437.0
申请日：1997-07-03
申请人： VA TECH WABAG Schweiz AG
发明人： Widmayer, Sigfried , Vescoli, Daniel
IPC分类号： B01D24/42
CPC分类号： B01D24/14 , B01D24/24

7. 发明公开

EP1185348A1 FILTER UNDERDRAIN SYSTEM FOR BACKWASH FLOW AND METHOD FOR MEASURING SAME 有权
标题翻译：反冲洗过滤器，排水系统和方法测量反冲洗
公开(公告)号：EP1185348A1
公开(公告)日：2002-03-13
申请号：EP00924992.1
申请日：2000-05-01
申请人： Hambley, Philip , Hambley, David , Carothers, Cole , Bassett, Govert II
发明人： Hambley, Philip , Hambley, David , Carothers, Cole , Bassett, Govert II
IPC分类号： B01D24/24 , B01D24/46 , B01D24/00
CPC分类号： B01D24/001 , B01D24/24 , B01D24/4631 , B01D2201/34 , B01D2201/44
摘要： A filter underdrain apparatus and a method for manufacturing such apparatus. The apparatus includes a cover member, a water orifice member and a bottom member, each being individual pieces. The cover is placed over the water orifice member and connected thereto by welding. The bottom member is likewise connected to the cover and water orifice members by welding. A water passageway and an air passageway are defined in the inside of the assembled members. Water egress from the water passageway is provided by holes in the water orifice member and the cover. Air egress from the air passageway is provided by holes in the cover.

8. 发明授权

EP0776244B1 LATERAL MEMBER ASSEMBLY FOR UNDERDRAIN LATERAL SYSTEM 失效
标题翻译：横向元件的排列FOR A LATERALES下排污管系统
公开(公告)号：EP0776244B1
公开(公告)日：2001-09-19
申请号：EP96919458.8
申请日：1996-06-14
申请人： United States Filter Corporation
发明人： EISCHEN, Frederick, W. , UBAN, Stephen, A. , MAXSON, Richard, C.
IPC分类号： B01D24/22
CPC分类号： B01D24/24 , B01D24/12 , B01D24/22 , B01D24/4626 , B01D2201/4084
摘要： Lateral member assembly for use in an underdrain lateral distribution system is made of plastics but is as capable as much heavier and more costly prior art metallic assemblies in supporting a bed of filter media which must be periodically backwashed with liquid and gas. Complementary elements, including a rigid extruded floor plate member having longitudinally extending side edge channels, and an overlying screen member having flange portions adapted to be retained by undercut recesses in the side edge channels, are adapted to be assembled to each other to form hollow lateral assemblies. In a preferred embodiment, the screen member is telescopically assembled to the floor plate member to cause the screen flange portions to interlock with the recesses in the side edge channels. The resulting assembly is sealed against leakage where the members are interlocked by a pair of flexible, integral plastic sealing strips which are co-extruded with the rigid floor plate member. In an alternative arrangement, the flange portions of the screen members engage a cam surface on the floor plate member which forces them away from each other as the screen member is pressed down against the floor plate member, thus causing them to snap into the undercut recesses in the side edge channels. The flange portions are then retained in a locked relationship with the floorplate member and sealed by flexible rod members forced into the space between the outside surfaces of the screen member and the outer walls of the side edge channels.

9. 发明公开

EP1059978A4 FILTER BED DIFFERENTIAL PRESSURE MONITORING SYSTEM 有权
标题翻译：压差监测系统的滤床
公开(公告)号：EP1059978A4
公开(公告)日：2001-08-22
申请号：EP98955142
申请日：1998-10-28
申请人： ROBERTS FILTER GROUP
发明人： ROBERTS R LEE , SIMMONS JOHN D
IPC分类号： B01D17/12 , B01D24/22 , B01D24/46 , C02F3/10 , C02F11/16 , G01L13/00 , G01L13/02 , G05D21/02 , B01D23/16
CPC分类号： B01D24/4884 , B01D24/24 , C02F3/104 , C02F2209/03 , Y02W10/15
摘要： A differential pressure monitor (50) for measuring the pressure at a plurality of heights in a filter bed (38) is provided. A preferred embodiment of the monitor (50) includes an elongated body (70), a plurality of pressure sensors (56) located on the elongated body (70), for obtaining the pressure readings, a control means (80) for determining differential pressures from the pressure readings, each differential pressure being the difference in pressures measured at two different heights in the filter bed (38), and transmission means (62) to transmit the pressure readings from the pressure sensors (56) to the control means (80).

10. 发明授权

EP0755292B1 APPARATUS AND METHOD FOR IMPROVING GAS BACKWASH IN LATERAL UNDERDRAINS 失效
标题翻译：设备和方法，边排水系统改善反冲洗具有气体
公开(公告)号：EP0755292B1
公开(公告)日：1998-10-14
申请号：EP94917353.8
申请日：1994-05-12
申请人： THE F.B. LEOPOLD COMPANY, INC.
发明人： BROWN, Marvin, A. , BERGMANN, Eugen, O. , HSIEH, Richard
IPC分类号： B01D24/22 , B01D24/38
CPC分类号： B01D24/24 , B01D24/4631
摘要： An apparatus and method for gas backwashing a granular media supported upon a lateral underdrain is disclosed. The lateral underdrain includes a plurality of dispersion apertures therethrough and at least one liquid return conduit extending to a discharge at a level below the dispersion apertures. The present invention provides for equal distribution of backwash gas across the entire lateral underdrain by directing backwash gas through the dispersion apertures into the granular media and directing liquid from the granular media through the liquid return conduit without obstructing backwash gas flow through said apertures from a gas pocket formed underneath said apertures.

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