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5948253 |
Three layer hydrocarbon filter
The present invention relates to a filter for removal of hydrocarbons and synthetic hydrocarbons from water by adsorption and/or absorption. The invention comprises a flow-through filter. The...
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5944991 |
Pipeline strainer
A pipeline strainer having a body defining a rectilinear flow passage between an inlet and an outlet and a cylindrical cavity centrally located therebetween. A removable cover of cup-like...
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5944993 |
Screen assembly for vibrating screening machine
A screen assembly for a vibratory screening machine including a frame in the nature of a plate having spaced apertures therein, spaced frame members on opposite sides of the apertures, a screen...
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5942113 |
Solid-liquid separating filter medium for sewage, waste water, etc
A solid-liquid separating filter media (4) for sewage, waste water, etc. comprising a mono- or multi-layered filter screen (3) in which a number of filaments (1) are closely aligned in parallel and...
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5938940 |
In-line liquid filtration device and method useable for blood and blood products
An in-line liquid filtration device useable for filtration of blood, blood products or the like includes a housing having an inlet port, an outlet port, at least one filter element disposed in the...
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5935436 |
Device for simultaneously removing leukocytes and methylene blue from plasma
Filter devices for simultaneously removing leukocytes and viral inactivating agents from whole blood or blood fractions are disclosed. One type of device comprises (1) a housing surrounding (2)...
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5928510 |
Filter apparatus for even flow distribution
A filter system including a cylindrical filter formed around a cylindrical spindle so as to form a passage therebetween, the spindle forming a channel along its length, a channel outlet at a lower...
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5904845 |
Fuel filter, in particular for diesel fuel
A fuel filter comprising a container, a filter cartridge coaxially disposed within said container and defining therebetween a first chamber having an upper portion disposed above the filter...
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5904846 |
Filter cartridge having track etched membranes and methods of making same
A filter cartridge that includes a track etched membrane sealed therein in a leak-free manner, and a method for making the cartridge. The filter cartridge has a bubble point that is at least 50% of...
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5888409 |
Methods for cell isolation and collection
The invention resides in apparatus and methods for isolating and collecting cells from donor tissue for later use in medical procedures. The apparatus includes a sealed enclosure, at least one...
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5876552 |
Method of fabricating screen for vibratory screening machine
A screening screen assembly for a vibratory screening machine including an apertured plate or frame, and a bonded subassembly of an undulating support screen and fine screening screen and finer...
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5868933 |
Antimicrobial filter cartridge
An antimicrobial filter cartridge having a perforated core member wrapped with a first microporous membrane, which is in turn overwrapped with second and third microporous membranes. The membranes...
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5868930 |
Filtration cassette article and filter comprising same
A filtration cassette of a type comprising filter sheets arranged in a multilaminate, peripherally bonded array, wherein the filter sheets alternate with permeate and retentate sheets. A stacked...
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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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5851393 |
Screen assembly
Screen assemblies having a plurality of supports assembled with peripheral screen frames with screen cloth extending fully over the assemblies. The supports are assembled with each other and with...
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5849186 |
Integrated cardiotomy and venous blood reservoir
A blood reservoir for the treatment and collection of blood from two different sources. The blood reservoir has a filter/defoamer core assembly comprised of a support structure disposed within an...
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5824218 |
Permanent espresso filter insert
The present invention relates to a permanent espresso filter insert for insertion into an espresso machine, the insert comprising a substantially flat filter disc which is penetrated by a plurality...
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5814218 |
Distorted rectangular filter cloth screen for vibrating screening machine
A screen for use with a vibrating screening machine to filter undesired particles from a liquid uses a filter cloth having a substantially rectangular mesh suitable for separating the undesired...
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5785851 |
High capacity filter
A reticulated ceramic filter for molten metal has an inlet portion with an inlet surface, an intermediate body portion contiguous with the inlet portion and an outlet portion with an outlet...
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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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5770073 |
Combined cardiotomy and venous reservoir
A combined venous and cardiotomy blood reservoir is provided that includes a rigid shell having a top, a bottom, and a continuous side wall. The top and bottom walls are connected to the continuous...
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5762871 |
Multi-layer test device for analyzing the concentration of analyte in a blood sample
The present invention relates to a method and to a device for separating plasma from whole blood. The method and device utilize a permeable non-glass fiber matrix containing a polyol which is...
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5759396 |
Cardiotomy filter/defoamer structure with three-stage filter/defoamer
A three-stage cardiotomy filter/defoamer dispenses with the conventional tricot sock covering by forming the secondary defoamer as a small-pore foam impregnated with a much heavier concentration of...
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5759398 |
Screen for inlet opening of a pump
A suction sieve has a cylindrical sieve body made up of several annular, modular cassette elements that are axially spaced apart and coupled to one another. The cassette elements surround a central...
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5750024 |
Conical coalescing filter
A porous coalescing filter element of conical configuration is disposed within a substantially cylindrical filter housing such that the area between the element and the wall increases in the...
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5733445 |
Storm sewer catch basin filter
A removable filter assembly includes a relatively thin support grate positioned on top of an inlet grate, a filter fabricated from a geotextile material is positioned on the support grate and has...
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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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5725774 |
Whole blood separation method and devices using the same
The present invention relates to a method and to a device for separating plasma from whole blood. The method and device utilize a permeable non-glass fiber matrix containing a polyol which is...
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5723047 |
Compressible filter element peripherally sealed by a settable material
A filter has a series of porous, compressible filter elements sealed at their outer edge by a collar of silicone rubber that is flowed into the filter elements. The collar seals with an annular...
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5723044 |
Water filtration system for control of the zebra mussel
A water filtration system for preventing a Zebra Mussel from entering a water system having a water intake line extending into an aquatic environment exposed to Zebra Mussels. The system contains...
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5716526 |
Method of separating materials from liposomes or lipid complexes
The invention provides a method of separating liposomes or lipid complexes from a fluidic medium. The method involves passage of a fluidic medium containing liposomes or lipid complexes through a...
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5711877 |
Etched disc with crosshatch pattern
A thin metal foil disc etched on both sides in such a way as to form a crossover pattern of rectangular flow passages (or channels) spiraling out, in opposite directions, from the inner diameter to...
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5707521 |
Filter element having a nonwoven layer and a permeable shrink tube
A filter element having a first tube 2 and a second tube 3, the outer circumferential surface of the first tube 2 being surrounded by a nonwoven layer 4, and the second tube 3 surrounding the first...
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5702616 |
Aramid fiber filtration sheet
The present invention provides a polymeric, particularly aramid, fiber filtration sheet having a relatively small pore size and high pore uniformity. The present inventive aramid fiber filtration...
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5702607 |
On-site automated closed loop petroleum based hydrocarbon fluid filtration and recycling system
An on-site automated closed loop petroleum based hydrocarbon fluid filtration and recycling system that continuously recycles a spent petroleum based hydrocarbon fluid and simultaneously...
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5690825 |
Filtration method and apparatus
An expansible, compressed foam is used a s a filter medium and captured particulates are released from the foam by expanding the foam to open its pores. Micro-organisms such as Cryptosporidium or...
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5679251 |
Wound oil filter
A diesel engine secondary oil filter is formed from a punched tinned steel spiral lock seam center tube, with a flanged cap at one end and a flanged threaded outlet at the other end. A layer of...
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5679248 |
Coextruded blocks and applications therefor
A coextruded block composite which includes a porous first block. The block is permeable to fluids and includes a granular component and a binder component. The block has interconnected pores...
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5676718 |
Computer drive bay cover with filter
A computer drive bay cover with filter including a cover plate that has a front panel with a peripheral overhang. The front panel has a plurality of linear slots cut at a slant. The overhang has a...
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5665233 |
Filter apparatus for selectively removing leukocytes
Disclosed is a filter material for selectively removing leukocytes from a leukocyte-containing suspension, which comprises a porous element having an average pore diameter of 1 to 25 μm and a...
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5656166 |
High collapse pressure porous filter device
A substantially cylindrical, unitized filter element for separating contaminant material from a flowing media includes an outer, substantially cylindrical wall portion which is fabricated by a two...
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5653869 |
Filtration chamber with fast locking system
Filtration chamber consisting of a cylindrical vessel having a bottom plate (1a) forming a support for the filtering system (11), this latter comprising a filter sheet (11a) and a filter netting...
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5639370 |
Compound layer resin bonded filter cartridge
A hollow, cylindrical, resin-bonded filter cartridge has an inner, depth-type filter media with a graded density which decreases (becomes porous) in the radial direction from the inner surface to...
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5637213 |
Immersible filter drum unit and method for assembling thereof
Filter apparatus for filtering contaminants from a fluid, such as machine tool coolant, are disclosed. One filter apparatus includes a filter drum unit having a generally cylindrical open...
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5632891 |
Self venting septums for use in a liquid filtration system
A septum adapted to be pre-coated with a filter and/or chemical treatment composition is formed of a tubular core member having a top and a bottom end. A plurality of top openings is provided in...
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5630940 |
Filter device for the filtration of fluids
The filter device (10), provided for the filtration of fluids, comprises two interconnected material structures (14,16) forming a filter unit (12). The two material structures (14,16) are...
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5628901 |
Vessel for treating liquids
A single vessel with no moving parts is constructed to perform the functions of coalescing, vacuum dehydration, and thin film evaporation.
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5626752 |
Device for separating biologic-organic flow media with filter elements in the form of membrane cushions
A device for filtering and separating a flow medium by reverse osmosis, micro filtration, ultra filtration, or nano filtration has a pressure-tight housing having an inlet for the flow medium and a...
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5624560 |
Wire mesh filter including a protective jacket
A filter is provided which combines a woven wire mesh over a supporting body. The supporting body is typically a metal perforated tube which provides fluid communication between the well bore and...
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5620599 |
Low hold-up volume filter assembly
A filter assembly for decreasing fluid hold-up waste and providing uniform flow while maintaining desired flow rates and pressures comprises a housing, a filter element including first and second...
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