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7608189 |
Device for removing bacterial lipopolysaccharides and/or lipoteichoic acids from protein-containing fluids and its use for the treatment of sepsis
A device for removing bacterial lipopolysaccharides and lipoteichoic acids from blood or plasma in an extracorporeal perfusion system contains, in a housing that can be incorporated into the...
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7591954 |
Method for removing leukocytes, leukocyte-removing filter and utilization thereof
A method for removing leukocytes, whereby leukocytes can be removed at a higher level of performance in a short filtration time without clogging. A method comprising passing a leukocyte-containing...
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7582209 |
Graded particle-size retention filter medium for fluid filtration unit with improved edge seal
A fluid filtration unit having two or more filter medium layers and/or zones, at least one of the layers/zones having a different particle retention capability disposed on each side of a...
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7572374 |
Anticoagulant and thrombo-resistant hollow fiber membranes for in-vivo plasmapheresis and ultrafiltration
An in-vivo plasmapheresis or in-vivo ultrafiltration membrane comprises a plurality of elongated hollow microporous fibers each fiber having an outer wall, an inner wall and an interior lumen...
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7478729 |
Fuel-filtering device
A fuel-filtering device is disposed inside a fuel tank for filtering a fuel. The fuel-filtering device includes a filter body having a bag shape and a communication hole, and is formed of a...
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7473362 |
Water treatment system
A media in the form of a multilayered semi porous composite membrane containing a strong positive electrical charge with a highly porous surface consisting of 60 to 90 percent void volume and pore...
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7398887 |
Product and method of forming successive layers of face-to-face adjacent media with calculated pore size
A filter media product and method of making the same wherein at least two independent filter media thicknesses of differing coarse and fine pore sizes are held in face-to-face relationship with the...
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7344580 |
Filter unit
Converting machines give rise to polluted air which must be removed with the aid of fans and filters. The invention aims at removal of the polluted air in such a way that the servicing interval is...
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7137510 |
Filter element
A filter element in which several layers ( 2, 3, 5, 7, 8 ) made of a filtering medium are joined contiguously in the direction of flow with at least one layer ( 2, 7 ) made of a filtering medium...
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7128772 |
Filter assembly, process for producing the filter assembly and filter body having the filter assembly
A filter assembly through which a fluid can flow and a method for the production thereof are provided. The filter assembly includes at least one covering layer made of an at least partially porous...
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7051883 |
Wetlaid-spunbond laminate membrane support
Nonwoven fabric laminates suitable for use as semipermeable membrane supports are provided. The fabric laminates generally include at least two layers: a spunbond layer of continuous filament...
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6991113 |
Nonwoven fabric for filter and filter for engine
A nonwoven fabric for a filter excellent in cleaning efficiency and trapped matter retention volume is constructed by two or more different kinds of fibrous layers placed one over the other. The...
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6919026 |
Semipermeable membrane support and process of preparation thereof
A semipermeable membrane support includes, a non-woven fabric including main fiber and binder fiber, both of which are formed of synthetic resin fine fiber, the non-woven fabric being manufactured...
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6878275 |
Fuel filter arrangement including fibers and method for manufacturing the same
A fuel filter arrangement includes a core member and a filter main body. The filter main body includes an inner filter and an outer filter, which is arranged at outside of the inner filter. A pore...
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6749753 |
Filter of high accuracy
Filters having a high accuracy, small pressure loss, and long filtration life compared with conventional filters are provided. The filters are composed of non-woven fibrous agglomerates and are...
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6695148 |
Transmission filter felt
A transmission fluid filter material and transmission filter produced therefrom comprising a gradient density composite felt which exhibits high particle removal efficiency at 40 micron diameter...
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6422395 |
Filter with preferential fluid affinity
A filter is composed of filter media having the following characteristics in combination: a) the filter media has a greater affinity for the filtered fluid than for contaminants in the fluid, and...
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6415930 |
Separator cartridge
A separator cartridge comprises a support screen comprising a substantially rigid reinforced plastic cylinder including an inner first major surface and an outer second major surface, a first...
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6390304 |
High performance filters comprising inorganic fibers having inorganic fiber whiskers grown thereon
A filter media system, which is capable of operating in the microfiltration regime, offers: low cost, durability, high temperature and chemical resistance, no particulation, mechanical strength,...
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6337026 |
Leukocyte reduction filtration media
A high capacity leukocyte depletion filtration media incorporates a high specific surface area components with a matrix of fibers, yielding a filtration medium that removes leukocytes by at least...
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6315130 |
Pleated filter element
A filter element according to the present disclosure includes a plurality of longitudinally extending pleats including outwardly radiating primary pleats and inwardly radiating secondary pleats,...
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6283307 |
Filter medium and filter cartridge
A filter medium is formed by preparing a pH 3-5 aqueous suspension of cellulose fibers in a pulper or beater with a concentration of between 3% and 5%. A pH 2.8-3.8 aqueous suspension of glass...
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6267252 |
Fine particle filtration medium including an airlaid composite
The present invention pertains to a filter medium including an airlaid composite, which is made of pulp fibers, at least about 2% by weight bicomponent fiber, and moisture. This airlaid composite...
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6267898 |
Leukapheretic filter medium
A leukocyte-removing filter medium which comprises a matrix and ultra-fine fibers having a fiber diameter of less than 1.0 μm and not less than 0.01 μm which contains ultra-fine fibers in an...
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6241886 |
Plasma separation filter
The present invention provides a plasma separation filter capable of easily, speedily and safely separating plasma from a small quantity of blood without damaging blood cell components in the...
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6146436 |
Cartridge filter
A cartridge filter having a cylindrical filter element, which is pleated parallel to its axis and is made of a layered non-woven unitary fabric. The fabric is permeable by air flow in the radial...
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6048464 |
Filter medium for leukocyte removal, method of making, and method of using thereof
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6032807 |
Methods for correlating average fiber diameter with performance in complex filtration media
A method correlates average fiber diameter with performance for a complex filtration media comprising a matrix of fibers having a fibrillated component with a diameter so small (e.g., less than...
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5984110 |
Device for purifying lightly laden water
The subject matter of the present invention is a device for purifying lightly laden water containing particles and/or fatty matter and/or microorganisms in suspension. The device of the invention...
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5980616 |
Filter media for preventing carbon migration
A filter includes a center layer of carbon cloth interposed between two layers of filter material whose edges are welded together to provide not only a filter edge substantially free of carbon...
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5866007 |
Method and apparatus for the collection, storage, and real time analysis of blood and other bodily fluids
The present invention provides a method and apparatus for separating a blood sample having a volume of up to about 20 milliliters into cellular and acellular fractions. The apparatus includes a...
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5863645 |
Composite microporous polyolefin membrane and a method of producing the same
The present invention is related to a composite microporous polyolefin membrane having a high separation, a high flux and a high strength, comprising a microporous layer, b-layer, providing a...
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5776343 |
Fluoroplastic apertured film fabric, structures employing same and method of making same
An apertured film extruded from a crystalline, thermoplastic, extrudable fluoroplastic material. The film includes spaced-apart strand segments defining apertures therebetween and has at least 10...
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5766288 |
Multilayered deep-bed filter material
Multilayered filter material is provided with at least two layers having different filter properties (coarse filter layer and fine filter layer), for which the separation ratio of the coarse filter...
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5728298 |
Filter element and method for the manufacture thereof
A filter element (10) comprises a porous, thick-walled, integral, self-supporting, resin impregnated and bonded fibrous, tubular filter structure (11) having a hollow core (15); an inner shell (20)...
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5728306 |
Leukodepletion filter and method for filtering leukocytes from freshly drawn blood
A leukodepletion filter is provided including glass fiber filter pads and non-woven polyester fiber filter pads sealed within a filter housing. The filter is designed such that a fluid, such as...
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5728187 |
Air filtration media
An air filtration media is formed of a blanket of fibers, preferably glass fibers, bonded together at their points of intersection with a binder. The blanket has a weight between about 2.5 and...
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5716522 |
Non-woven depth media in-tank fuel filter
An in-tank fuel filter includes a body comprising layers of spun bonded and melt blown filtration media and a fitting for mounting the filter to an in-tank fuel pump inlet. An outer layer of the...
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5709794 |
Low-cost portable water filter
A low-cost portable water treatment device having a low-cost replaceable filter. The device includes a housing having an inlet, an outlet and a water filtration chamber. The replaceable filter is...
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5614095 |
Filtration mediam support material and filter comprising same
The present invention provides a method of preparing a support for a filtration medium comprising passing a sheet of nonwoven fibrous polymeric material having first and second sides through a...
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5609947 |
Laminated non-woven fabric filtering medium and method for producing same
A laminated non-woven fabric for filtering medium, which is composed of a plurality of non-woven fabric layers having different average pore sizes and laminated in the order of the average pore...
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5605748 |
Fiber beds for fiber bed mist eliminators
There is provided a fiber bed for removing liquid aerosols and soluble solids from a gas stream in a fiber bed mist eliminator. The fiber bed is in the form of a flexible mat having a void fraction...
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5501795 |
Device for depletion of the leucocyte content of blood and blood components
A high efficiency leucocyte-depletion filter for use with packed red cell concentrate derived from freshly drawn blood comprises a fibrous filter medium with a pore size of from about 0.5 to less...
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5437910 |
Multi-ply filter lasminate/composite for manufacturing vacuum cleaner filter bags
There is provided a multi-ply filter laminate/composite for manufacturing vacuum cleaner filter bags comprising at least one ply of filter paper and at least one ply of fine fiber web, wherein at...
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5360545 |
Filter for obtaining platelets
The invention provides processing donated blood, particularly a platelet-containing solution such as platelet-containing plasma, involving separating blood into a red cell containing sediment layer...
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5298165 |
Method for removing leukocytes and a filter system for removing the same
A method for removing leukocytes from a leukocyte-containing blood product, include subjecting a leukocyte-containing blood product to a first stage leukocyte-removing treatment to remove at least...
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5288402 |
Liquid filter medium including a fibrillated filtering layer and an organic fiber support
A two-layered filter medium for liquid filtration comprises a support composed of organic fibers of 7 μm or more in diameter and basis weight of 30-150 g/m 2 , and a filtering layer composed of...
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5266219 |
Device and method for separating plasma from blood
A device for separating plasma from blood is provided comprising a synthetic polymeric fibrous structure having a CWST in excess of 65 dynes/cm, the structure having a first region for receiving a...
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5229012 |
Method for depletion of the leucocyte content of blood and blood components
A high efficiency leucocyte-depletion filter for use with packed red cell concentrate derived from freshly drawn blood comprises a fibrous filter medium with a pore size of from about 0.5 to less...
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5139686 |
Method and apparatus for filtering dry cleaning solvent
Disclosed is a filtration process for the removal of undesired substances from dry cleaning fluids. Illustratively, a cylindrically-shaped batt of a long-fiber synthetic washable fabric filter is...
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