| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 210346000 | Spaced wall-type filters | 17 |
| 20080264852 | Filtration Cassettes - The present invention relates to filtration cassette, components thereof and methods of making them. A filtration cassette comprises a plurality of subassemblies of which at least one comprises a filter screen encompassed by two filter membranes or one filter membrane and an impermeable film which are joined together around their peripheries. | 10-30-2008 |
| 20090114587 | NEGATIVE PRESSURE REVERSE OSMOSIS FILTERING MEMBRANE SYSTEM - A negative pressure reverse osmosis filtering membrane system includes multiple reverse osmosis filtering members, multiple buckle units, multiple sealing members, a first base and a second base. Each of the reverse osmosis filtering members includes a supporting plate, a first membrane, a second membrane, and an aperture. The first membrane and the second membrane sandwiches the supporting plate to define a room. The aperture is defined along an axis and through the supporting plate, the first membrane and the second membrane to communicate with the room. The buckle units are embedded next to each other and alternately stacked with the reverse osmosis filtering members. The sealing members are respectively clamped between the buckle unit and the reverse osmosis filtering member. The first base further includes a pump hole communicating with the aperture and pumping the filtered liquid out of the reverse osmosis filtering membrane system by a negative pressure. | 05-07-2009 |
| 20100096318 | Membrane Treatment Apparatus - A membrane treatment apparatus includes a filtration membrane | 04-22-2010 |
| 20100320139 | FILTER MODULE - A filter module comprises a non-filtrate draining spacer element, a filter layer, a filtrate draining spacer element, a filter layer, a non-filtrate draining spacer element, a filter layer, and a filtrate draining spacer layer stacked on one another in an axial direction, wherein at least some of the draining spacer elements comprise connecting means around the outer circumference to compress and seal off the filter layers between the draining spacer elements. | 12-23-2010 |
| 20120067809 | FILTERING APPARATUS - A filtering apparatus sucks liquid in hollow portions ( | 03-22-2012 |
| 20120080371 | LEAF FILTER SYSTEM AND REPLACEABLE FILTER LEAF APPARATUS - Filter and replaceable filter leaf apparatus are provided. The filter includes a housing defining a cavity having fluid inlet and outlet ports and a lid member with a manifold coupled to the outlet port and being adapted to conduct a fluid flow between the outlet port and a plurality of attachment areas. Replaceable filter leafs are selectively movable through an opening into the housing cavity and attachable with the manifold at the plurality of attachment areas. The replaceable filter leafs include a filter envelope consisting of a filter panel, a nozzle member on the filter panel and defining a passageway adjacent an opening in the filter envelope for conducting fluids therethrough. The nozzle member is selectively attachable onto the manifold of the polishing filter apparatus at any one of the plurality of attachment areas. | 04-05-2012 |
| 20130092621 | FORMED SHEET MEMBRANE ELEMENT AND FILTRATION SYSTEM - A piece of substrate material is formed under heat and pressure against a cavity into a shaped substrate sheet having one or more depressions. Two substrate sheets are bonded together to form a substrate wherein the one or more depressions form one or more interior channels. The substrate, if not formed with pre-coated substrate material, is coated with a dope and quenched to form a filtering membrane. A plurality of membranes may be placed side by side to form a bundle with permeating ends of the membrane, which are open to the one or more interior channels, separated by gaps or spacers. The bundle is connected to a header to produce a module. The module can be assembled into a cassette. | 04-18-2013 |
| 20130126415 | OIL SEPARATOR AND METHOD OF MANUFACTURING THE SAME - An oil separator configured to separate oil from refrigerant in a refrigeration system is disclosed. For example, the oil separator may be deployed in a heat exchange system configured to liquefy one or more fluids that are gaseous at ambient temperature and pressure. By virtue of its design and method of manufacture, the oil separator may reduce costs associated with manufacture, reduce failure to leakage, reduce misalignment of components that impair function and/or result in other undesirable effects (e.g., undesirable noise during operation, etc.). | 05-23-2013 |
| 20130180909 | FLEXIBLE FILTER DEVICE FOR CAPTURING OF PARTICLES OR CELLS IN A FLUID - A filtering device includes a housing and one or more flexible filter arrays. The flexible filter arrays can be coupled to the housing. Each flexible filter array can include a plurality of members and one or more support members. The plurality of members each can have a proximal and a distal end, the plurality of members being spaced apart by a predetermined distance. The one or more support members can be coupled to one or more of the plurality of members. Each of the plurality of members can be configured to deflect relative to the one or more support members. | 07-18-2013 |
| 20140091027 | Purifier Cassette - The present disclosure relates to purification cassettes that have reinforcing features. One embodiment relates to a purification cassette with tensions members. A purification system may include a removable cassette defining a media cavity. A set of tension members may span between a first sidewall and second sidewall. The set of tension members can divide the media cavity into a plurality of lanes. | 04-03-2014 |
| 20140110331 | WATER FILTER CARTRIDGE WITH VALVES - A water filter cartridge having a housing with an inlet nozzle with a concentric, smaller outlet nozzle extending through the inlet nozzle with a space therebetween defining an inlet to a flow path passing through a filter and through the outlet nozzle. A diaphragm valve mounted to the outlet nozzle blocks upstream flow out of the inlet when the cartridge is not in use. An umbrella valve mounted on the end of the filter blocks downstream flow out of the outlet nozzle when the cartridge is not in use, thus reducing leakage when the cartridge is removed from the appliance. | 04-24-2014 |
| 20150021260 | SEPARATION MEMBRANE ELEMENT AND SEPARATION MEMBRANE MODULE - A separation membrane element including a pair of separation membranes containing two separation membranes arranged so that the filtrate-side surfaces thereof are disposed in mutually opposed relation, and a plurality of resin members bonded to both of the mutually opposed filtrate-side surfaces, a peripheral edge of the pair of separation membranes being sealed. | 01-22-2015 |
| 210347000 | Central header | 5 |
| 20080283460 | Device for Filtering a Fluid, Particularly for Plastic Processing Plants - The invention relates to an arrangement and a device for filtering a fluid, particularly for plastic processing plants, wherein the pressure drop, or the flow rate reduction, created by the withdrawal of material from the process is sensitively balanced in that pressure constancy and flow rate constancy are achieved at the discharge duct ( | 11-20-2008 |
| 20100012572 | DISC-SHAPED FILTER ELEMENTS AND METHODS TO PROVIDE DISC-SHAPED FILTER ELEMENTS - The present invention relates to a disc-shaped filter element and to a method to provide a disc-shaped filter element. A disc-shaped filter element has a diameter K, and comprises a first and a second ring-like shaped, liquid permeable support member having an outer edge having a diameter Ds and an inner central edge, having a largest width Ws. The disc-shaped filter element comprises a first and a second ring shape-like filter membrane, the first filter membrane being in contact with the first surface of the first support member, the second filter membrane being in contact with the first surface of the second support member. The outer edges of the first filter membrane, the second filter membrane, the first support member and the second support member are liquid tight fixed to each other. The disc-shaped filter element further comprises a hub having a central void space, an outer wall, at least one channel extending from this void space to this outer wall and a coupling means. The first surface of the first support member and the second surface of the second support member are separated from each other over a distance H being different from zero at the outer wall of the hub. For each of the first support member and the second support member, the support member are provided with a radius of curvature r being smaller of equal to (K2/4H)+H/4 along at least a zone of the support member, which zone is delimited by a first imaginary circle along the support member having a diameter of 0.9 DS and a second imaginary circle along the support member having a diameter of 1.1 Ws. The zone in which a radius of curvature r being smaller of equal to (K2/4H)+H/4 is provided, may be delimited by the first imaginary circle along the support member may have a diameter of 0.975 Ds and a second imaginary circle along the support member may have a diameter of 1.025 Ws. | 01-21-2010 |
| 20100288690 | STACKED PLATES FILTRATION CARTRIDGE - A filtration cartridge ( | 11-18-2010 |
| 20110284451 | SPACER ELEMENT FOR GUIDING FLOW MEDIA - In a spacer element for guiding a flow medium in apparatus for filtering and separating the flow medium by reverse osmosis and ultrafiltration wherein filter elements are disposed between adjacent spacer elements which are disc-shaped and each has a central opening with a plurality of spaced openings disposed around the central opening for conducting the flow medium through the spacer element, a plurality of projections extend from the surfaces of the spacer element and have support areas formed at their tops which are oriented essentially parallel to the side surfaces of the spacer element. | 11-24-2011 |
| 20140299534 | CONTIGUOUS FILTER PRESS AND METHODS OF MANUFACTURING THE SAME - A horizontal filter press is disclosed. The horizontal filter press comprises a support bracket, a head bracket, two sidebars spanning a distance between said support bracket and said head bracket, and a plurality of double filter plates. Each double filter plate comprises a first individual filter plate having a first filter chamber, one or more first filtrate ports, at least one first feed eye port, and at least one first handle; and a second individual filter plate having a second filter chamber, one or more second filtrate ports, at least one second feed eye port, and at least one second handle. The first and second individual filter plates are initially separate components, but are subsequently mechanically joined together to form said at least one double filter plate. In some embodiments a spacer bar is provided between the first and second individual filter plates. In some embodiments, a cutout is provided between the first and second individual filter plates to accommodate a support beam centrally disposed between said sidebars, the support beam providing additional support to the plurality of double filter plates. Methods of manufacturing a double filter plate are also disclosed. | 10-09-2014 |
