Class / Patent application number | Description | Number of patent applications / Date published |
210457000 | With central pervious tubular receiver | 30 |
20080245725 | Fluid Filter - A diamond patterned tubular pleated filter element is disclosed. Also disclosed is a filter cartridge that comprises a core element having an inner diameter, two ends and apertures formed therein, a diamond patterned tubular pleated filter element having an inner and an outer diameter positioned about the core element wherein the ratio of the outer diameter to the inner diameter of the diamond patterned tubular pleated filter element is about 1.5 to about 2.5, an open end cap, for transferring fluid into or out of the core element, positioned at one end of the core, and a closed end cap, for preventing fluid from exiting therefrom, positioned at the other end of the core, the closed end cap including structure for positioning the open end cap in filtration housing. Systems and methods for manufacturing the filter cartridge and the diamond patterned tubular pleated filter media itself are also disclosed. | 10-09-2008 |
20090065426 | SPIRAL MEMBRANE ELEMENT - An object of the present invention is to provide a spiral membrane element that can improve the barrier property of a fiber reinforced plastic layer having a fiber roll as a reinforcing phase and that can effectively prevent occurrence of cracks. The spiral membrane element of the present invention is a spiral membrane element containing a cylindrical roll R in which a separation membrane, a feed-side flow passageway member, and a permeate-side flow passageway member are spirally wound in a laminate state around a perforated center tube | 03-12-2009 |
20090145838 | SANITARY SPIRAL WOUND FILTRATION CARTRIDGE - Sanitary elements and cartridges of high performance are described which utilize a thin surrounding tubular shell with an exterior textured surface. Through the use of an overwrap material of particular design and by wrapping an assemblage of sheets of semipermeable membrane material, permeate carrier material and feed spacer material using a high tension, a spirally wound crossflow filtration element is constructed which has a substantially cylindrical outer surface of closely controlled OD that smoothly fits within such shell and which resists telescoping as a result of its radial compression. | 06-11-2009 |
20090211964 | Corrugated-Ribbed Thread Plates for Oil/Fuel Spin-on Filters - An improved, reduced waste fluid filter has a concave housing having a first end, a second end, a fluid inlet port and a fluid outlet port. A cover plate assembly is sealably attached to a second end of the housing providing a closed area with which the inlet and outlet ports communicate. The cover plate assembly contains a retainer and a thread mounting plate. The improved thread mounting plate has thin steel with corrugations or ribs for stiffening the plate and is assembled with the retainer to form the cover plate assembly. An elongated cylindrical disposable fluid filter element is supported within the closed area of the housing and cover plate assembly. The filter element has a perforated center tube, a first end of which communicates with the fluid outlet port, the other end of the center tube being closed. The center tube has a filter media there around so that fluid flow into the closed area through the inlet port flows through the filter media and into the center tube to pass out through the outlet port. | 08-27-2009 |
20090294351 | FILTER SEAL - A filtering apparatus has a filter housing with a structure forming a recessed region on the filter housing configured to be directly engaged by a filter element in order to form an integral seal. The structure may include one or more protrusions that extend into the filter element itself, or into respective recess(es) of the filter element. | 12-03-2009 |
20100025321 | FILTER - Disclosed is an improved filter having a filter core, a top cover, a bottom cover, at least one first discharging pipe and at least one second discharging pipe, wherein the filter core has a slot through which a fluid to be filtered passes; the top cover and the bottom cover are respectively fixed to an upper portion and a lower portion of the filter core; an inner wall surface of the filter core, an inner wall surface of the top cover and an inner wall surface of the bottom cover define a filter cavity; the first discharging pipe, which communicates with the filter cavity and is provided at the top cover, has at least one first inlet through which the fluid flows in; the second discharging pipe, which communicates with the filter cavity and is provided at the top cover or the bottom cover, has at least one second inlet through which the fluid flows in; and all the first inlets are situated above the second inlets in the gravity direction. The filter can not only ensure the filtration precision, but also realize the separation of two fluids. | 02-04-2010 |
20100078378 | Spiral crossflow filter - The present disclosure describes a spiral cross-flow filter. The spiral cross-flow filter includes a filter element having a continuous web of leaves formed by pleating a laminate filter element. The filter element may include a composite filter material including a first layer of a membrane material adjacent an outer shell, and a second layer of a permeate spacer material adjacent a permeate tube. The plurality of leaves wrap around the permeate tube in a uniform “spiral” configuration and may be separated by feed spacers. | 04-01-2010 |
20100243554 | Fluid Filter Assembly - Some embodiments of the disclosure are directed to a fluid filter assembly including an outer filter element having a hollow core and an inner filter element having a hollow core. The inner filter element can be positioned within the hollow core of the outer filter element, thereby defining an internal fluid passage. In some embodiments, the first end of the outer filter element and the first end of the inner filter element can be supported by an open endcap assembly, which can also include a fluid inlet in fluid communication with the internal fluid passage. In some embodiments, at least one of the filter elements can include a pleated filter media. | 09-30-2010 |
20110100899 | PERFORATED HEXAGON-HOLE TUBE SUPPORT FOR SYNTHETIC SCREEN SEPARATOR - A separator cartridge includes a support tube formed of a perforated strip of metal configured to normally have a first diameter and a spaced array of hexagonal apertures formed therein and a substantially cylindrical screen member having a diameter less than the first diameter of the support tube, wherein a diameter of the support tube is decreased from the first diameter to a diameter less than the diameter of the screen member to be received in the screen member, and wherein the support tube causes the screen member to be maintained in a substantially taut manner. | 05-05-2011 |
20120006740 | FILTER ASSEMBLY WITH REUSABLE BYPASS VALVE - A filter unit includes an outer filter assembly, a bypass valve assembly, and an optional inner filter assembly. The bypass valve assembly can be separated from the outer filter assembly, allowing the bypass valve assembly to be recycled/reused when the outer filter assembly is disposed of. In addition, the bypass valve assembly and the optional inner filter assembly can be connected together, then inserted into the outer filter assembly. | 01-12-2012 |
20120043272 | COMPOSITE MEMBRANE SUPPORT AND COMPOSITE MEMBRANE USING THE SAME - An object of the present invention is to provide a composite membrane support composed of a dry process thermoplastic resin filaments nonwoven fabric having a significantly high uniformity to enable formation of a porous layer free from strike-through or a defect such as pinhole at the film formation, producing no skin layer defect at the formation of a skin layer, and being excellent in the mechanical strength and dimensional stability at high temperatures, and a high-performance composite membrane and a composite membrane element each using the composite membrane support. The composite membrane support of the present invention is a laminate dry process thermoplastic resin filaments nonwoven fabric comprising three or more layers containing at least a meltblown fiber layer as an interlayer and spunbond fiber layers on both sides of the interlayer, wherein the average value of air flow resistance is from 2.0 to 30.0 kPa·s/m and the ratio between the average value and the standard deviation of air flow resistance is 0.6 or less. | 02-23-2012 |
20120187039 | Pleated Woven Wire Filter - A removable, reusable, pleated woven wire filter for removing particulate material from a heavy coker gas oil process stream. The filter comprises: (a) a perforated core; (b) a pleated woven wire filter media wrapped around the perforated core, the filter media having spaced apart pleats and an external filter media surface comprising the external peaks of the pleats; (c) a stainless steel flattened expanded metal shroud adjacent to and encircling the external peaks; and (d) top and bottom end caps connected to the stainless steel flattened expanded metal shroud, and sealed against top and bottom ends of the filter media with a stainless steel adhesive sealant rated at 2,000 degrees Fahrenheit. The process stream operates between 300 and 800 degrees Fahrenheit, and between 150 psig and 500 psig. The filter can withstand a backwash purge pressure from 100 psig to 200 psig. | 07-26-2012 |
20130098829 | SPIRAL WOUND MEMBRANE ELEMENT AND PERMEATE CARRIER - A permeate carrier for a spiral wound membrane element has two or three layers, for example of tricot construction. The two outer, or only, layers resist movement of the membrane sheet into permeate channels in the permeate carrier. The total thickness of the permeate carrier sheet may be similar to the thickness of typical tricot permeate carrier sheets. The permeate carrier sheet may be coated to make its surfaces hydrophilic. The coating may be, for example, a cross-linked polyvinyl alcohol (PVA) or polyvinyl pyrrolidone (PVP). In the spiral wound element, a permeate carrier sheet may be wrapped in one or more layers around a central tube. Channels in the permeate carrier sheet are oriented helically relative to a longitudinal axis of the central tube. | 04-25-2013 |
20130098830 | METHOD FOR PRODUCING POROUS THERMOSETTING RESIN SHEET AND COMPOSITE SEPARATION MEMBRANE USING SAME - In the step of extracting and removing a porogen from a thermosetting resin sheet | 04-25-2013 |
20130193061 | Cartridge Filter - A first aspect of the present invention pertains to a filter comprising a tubular core with a plurality of apertures and a hollow interior, said core having an open end for fluid communication with the hollow interior, a length of yarn wound in a series of at least three layers around an outer surface of the core, wherein two consecutive layers have been wound in accordance with different winding patterns. A second aspect pertaining to the a filter, wherein the yarn comprises a mixture of natural and synthetic fibers, wherein the natural fibers constitutes less than 40% of the yarn, and the reminder constitutes fibers or a mix of fibers made from one or more of the following synthetic materials: acryl, polyester, flax, polyamide, acetate. The invention furthermore pertains to a method of manufacturing a filter according to one or both of the above mentioned aspects. | 08-01-2013 |
20130199988 | SPIRAL WOUND MODULE INCLUDING MEMBRANE SHEET WITH REGIONS HAVING DIFFERENT PERMEABILITIES - The present invention is directed toward spiral wound modules including membrane sheets with regions ( | 08-08-2013 |
20130220915 | SEPARATION MEMBRANE ELEMENT AND FLUID COLLECTING TUBE FOR SEPARATION MEMBRANE ELEMENT - Provided is a separation membrane element used under a high-temperature environment, in which the stress acting on a portion for fixing between a fluid collecting tube and a separation membrane is reduced and a deformation caused by receiving a long time thermal history can be prevented, and also provided is a fluid collecting tube used for the separation membrane element. The separation membrane element has a fluid collecting tube ( | 08-29-2013 |
20130240435 | UNIVERSAL FILTER - A filter element for a paint sprayer having a feed line includes a core defining a first end, a second end, and a central portion extending along an axis between the first end and the second end. The central portion includes a central aperture closed at the first end and open at the second end and a plurality of openings that extend through the core to the central aperture. A mesh member surrounds the central portion and an adapter is coupled to the second end. The adapter includes a flowpath therethrough, an outer cylindrical surface, and an annular surface. The annular surface is operable to engage an end of the feed line such that the adapter is operable to form an axial seal between the adapter and the feed line. | 09-19-2013 |
20130248436 | LIQUID FILTER ASSEMBLY - A fluid filter element for use in fuel filtration systems is disclosed. The filter element comprises, in an example embodiment, top and bottom end caps; filter media extending between the end caps and forming a central volume between the end caps; and an inner liner disposed in the central volume of the filter media between the end caps. A fluid passage is positioned in the inner liner extending between the end caps, the fluid passage being separate and independent of the flow through the filter media. A first seal is affixed to the bottom end cap; and a second seal with a central opening is affixed to the lower end of the inner liner. The inner lining may provide partial axial support to the filter media. An outer lining may also be included and provide partial axial support to the filter media. | 09-26-2013 |
20130299416 | SPIRAL SEPARATION MEMBRANE ELEMENT - A spiral separation membrane element ( | 11-14-2013 |
20130334128 | SEPARATION MEMBRANE ELEMENT - A separation membrane element includes a perforated water collection tube; and an envelope-shaped membrane formed of a separation membrane and wound around a periphery of the perforated water collection tube, in which the separation membrane has a difference in surface level of 100 to 2,000 μm on at least one surface thereof and has a strip-form region in each of both ends of the separation membrane in terms of the longitudinal direction of the perforated water collection tube, the strip-form region having an average difference in surface level of 50 μm or less. | 12-19-2013 |
20140151286 | SEPARATION MEMBRANE, SEPARATION MEMBRANE ELEMENT, AND METHOD FOR PRODUCING SEPARATION MEMBRANE - A separation membrane includes a separation membrane main body having at least a substrate and a separation function layer; and a channel material having a composition different from that of the separation membrane main body and affixed to a substrate-side surface of the separation membrane main body, wherein the channel material is discontinuous in a first direction and continuous in a second direction from one end to another end of the separation membrane main body. | 06-05-2014 |
20140251896 | SEPARATION MEMBRANE, SEPARATION MEMBRANE ELEMENT AND METHOD FOR PRODUCING SEPARATION MEMBRANE - A separation membrane, including: a separation membrane main body having at least a base material and a separating functional layer; and a flow path material independently fixed in the thickness direction of the base material, and having a compression elasticity of 0.1-5.0 GPa. | 09-11-2014 |
20150041388 | SEPARATION MEMBRANE AND SEPARATION MEMBRANE ELEMENT - A separation membrane includes a separation membrane main body that includes a supply-side surface and a filtrate-side surface; and a supply-side channel member disposed on the supply-side surface of the separation membrane main body, wherein when a thickness of the supply-side channel member in a direction perpendicular to a flowing direction of a supplied water that flows on the supply-side surface is a width d of the supply-side channel member, a ratio of height/width (h/d) of the supply-side channel member is 0.7 or greater and 3.0 or less. | 02-12-2015 |
20150068971 | SEPARATION MEMBRANE ELEMENT AND PRODUCTION METHOD FOR SAME - A spiral separation membrane element includes a water collection tube; a separation membrane wound around the water collection tube, having a feed-side surface and a permeate-side surface, and including a band-shaped region on at least one end of the feed-side surface in an axial direction of the water collection tube; and a channel material fused to the band-shaped region. | 03-12-2015 |
20160096144 | METHOD OF MAKING SPIRAL WOUND FILTRATION MODULES WITH A CURABLE ADHESIVE COMPOSITION AND MODULES MADE THEREBY - A method of making spiral wound filtration modules with a multi-pack, solvent-free curable adhesive composition. The adhesive composition includes a multi-functional Michael donor, a multi-functional Michael acceptor, and a Michael reaction catalyst. The spiral wound filtration modules are also included. | 04-07-2016 |
20160151745 | MEMBRANE MODULES UTILIZING INNOVATIVE GEOMETRIES OF NET-TYPE FEED SPACERS FOR IMPROVED PERFORMANCE IN SEPARATIONS AND SPACER-FABRICATION METHODS THEREIN | 06-02-2016 |
210458000 | Plural concentric receivers | 3 |
20090020472 | PLEATED FILTER - The present invention provides novel concentric filter elements that have advantages over traditional concentrically arranged filters as well as filters comprising a single cylindrical filter element. | 01-22-2009 |
20090065427 | FILTER CARTRIDGE - A filter cartridge configured as a filter-in-filter design with an inner filter and an outer filter. The filter cartridge has features, for example an overhanging lip, to engage with a lid of a filter housing in which the cartridge is installed such that the lid is connected to the cartridge. As a result, the cartridge can be connected to the lid to facilitate installation and removal of the cartridge. Alternatively, the same features that allow connection with the lid permit a user to manually grasp the cartridge during installation and removal so that the cartridge can be used without a lid having attachment features. The filter cartridge is also designed to enable use of a longer inner filter within the outer filter. A longer inner filter increases the amount of filter media available for filtering the fluid. | 03-12-2009 |
20090277827 | Liquids rebalancer - A liquid rebalancer for improving the taste of liquids using a sinusoidal helical coil made of three-strand copper wire. | 11-12-2009 |