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5288403 Filter for removing leucocytes  
A filter for removing leucocytes comprising a filter medium, said filter medium being a fibrous material made of a polyester fiber which is treated on its surface with a copolymer containing 40 to...
5283123 Adsorption material and method  
Adsorption material, preferably substantially spherical, wherein support particles having cellulose capable of binding charged particles such as proteins, are distributed over the exterior...
5252222 Filter for parenteral systems and method of using thereof  
A filter device and method are provided for treating parenteral nutrient fluids, particularly TNA systems containing lipids, glucose, and amino acids. The filter device comprises a housing and a...
5238568 Porous carbon-carbon composite filtering membrane support with a carbon fibre mat substrate  
A membrane support usable for separative procedures is disclosed. The support is a mechanically solid composite carbon-carbon material of limited thickness in the passage direction Z of a flow to...
5230800 Scrim inserted electrostatic fibrous filter web  
Provided is a nonwoven web of electrically charged fibers needle-punched to a scrim support. This web provides a filter medium having increased uniformity in pressure-drop, basis weight and...
5225276 Filter aid for analytical use and method for preparing the same  
The present invention relates to a filter aid for analytical use and method for preparing the same, more particularly, a filter aid for analytical use consisting essentially of tangled...
5223219 Analytical cartridge and system for detecting analytes in liquid samples  
A diagnosis system, which comprises a monitor, comprising a detector providing multiple reflectance readings in an array of individual locations, registering an analytical cartridge in the monitor...
5223139 Filter material in the form of flexible leaves or sheets and a method of producing such material  
A flexible fleece-like filter material is provided wherein in a matrix-like basic framework consisting of synthetic or natural fibres, ultra-finely fibrillated fibres and/or inert porous particles...
5196120 Ceramic-ceramic composite filter  
A ceramic fiber-ceramic composite filter having a support composed of ceramic fibers, preferably texturized, a carbonaceous layer thereover, and a silicon carbide coating over the carbonaceous...
5190657 Blood filter and method of filtration  
A filter material for filtering leucocytes from a fraction of or whole human blood, comprises a shape-sustaining laid textile web having a thickness of between about 2 millimeters to about 12...
5186843 Blood separation media and method for separating plasma from whole blood  
A single-layer blood separation medium for separating erythrocytes from whole blood and made of a composite including glass microfibers, cellulose fibers, and synthetic textile fibers, having...
5186998 Duplex filter cloth and method  
A duplex filter cloth for chamber type filters has two initially separate pieces secured together, as by stitching, around circumferential terminal edges of turned-down collar portions of the...
5183546 Optimized multiporous carbon bed for electrochemical filters  
An electrochemical filter which consists of a fibrous electrically conducting material to which there are bonded microscopic particles of carbon or active charcoal. A variety of fibers can be...
5154828 Filter aid and method for using same for reclaiming oil coolants used for metal working  
A filter aid material and a method for using same in a filtration system for reclaiming and maintaining coolant oil used in aluminum rolling or working processes are disclosed. The filter aid is a...
5141643 Filter material formed by fibride particles  
In a filter bed (11) for the solid/fluid separation of media which contain substances that attack or dissolve cellulose, for example cellulase-containing enzymes, a matrix comprising a fibrous...
5139685 Blood separation filter assembly and method  
Blood separation filter assemblies and methods are provided to quickly and completely separate plasma or serum from whole blood without the need of centrifugation. The filter assemblies and...
5130134 Polyimide composite filter fabrics  
Composite filter cloths having a top layer of a heavily profiled, electro-statically charged polyimide fiber and a depth filtration type fabric substrate may be structured to have a higher...
5118428 Method to remove red blood cells from whole blood samples  
Red Blood Cells (RBC's) are removed from whole blood samples by contacting the whole blood sample with a solution containing an acid selected from the group consisting of acetic acid, citric acid,...
5112665 Water barrier of water-swellable clay sandwiched between interconnected layers of flexible fabric  
A multi-layer article of manufacture includes an intermediate layer of a water-swellable colloidal clay, such as bentonite, sandwiched between two layers of flexible sheet or fabric material...
5104716 Contact material  
A plastic contact material is disclosed for the treatment of a liquid, comprising a plurality of strips made of a plastic material and wherein each of the strips has at least one tension element....
5096640 Method of producing porous hollow fibrous tubes  
A method of producing a highly porous melt spun fibrous tube for use as a separation medium comprising melt spinning a blend containing from 30 to 70 parts by weight of a first polymeric component...
5081017 Method and apparatus for detection and quantitation of bacteria  
A bacterial staining composition, process and apparatus for detection and quantitation of gram negative and gram positive bacteria in fluid samples are disclosed. The composition comprises a net...
5079170 Method of sample transfer using a filter applicator  
A sample applicator for use in performing immunoassays comprises a tube defining an internal lumen and having a filter matrix at one end thereof. Sample is drawn into the applicator tube, either...
5078872 Combined strainer and pour spout apparatus  
A disposable, combined strainer and pour spout integrates into one apparatus the combination of means for pouring and straining utilizing a simple device that may be readily attached to or...
5075160 Ceramic fiber reinforced filter  
A filter for removing particulate matter from high temperature flowing fluids, and in particular gases, that is reinforced with ceramic fibers. The filter has a ceramic base fiber material in the...
5049265 Effluent treatment system  
An effluent treatment system 1, 70, 80 for treating effluent which has passed through a primary treatment step such as a septic tank 50 comprises a container 5 having inlets 7 for effluent and...
5028465 Hydroentangled composite filter element  
A high performance filter element is provided, which filter element comprises a wound sheet of apertured material formed by hydroentangling webs of disparate fibrous materials. In a most preferred...
5022997 Method for treating aqueous solutions  
Methods for treating aqueous solutions and for recovering specific chemical products from an aqueous solution by ion exchange or adsorption by passing the aqueous solution through a regenerable...
5019254 Filter pad with pocket and method of using the same  
Filter pads useful for filtering and removing contaminants from fluids comprise at least two pad layers of a permeable, nonwoven polymer material, where one pad layer is connected to another pad...
5019311 Process for the production of materials characterized by a continuous web matrix or force point bonding  
A method of forming a composite material by providing a quantity of first particles of a binder material and a quantity of second particles of a primary material having softening temperature...
5013459 Opthalmic fluid dispensing method  
A method and device for dispensing an aqueous fluid which is desired to be maintained in a sterile condition. The method includes storing a quantity of aqueous fluid such as ophthalmic saline...
5008011 Shower dechlorinator using granulated copper alloy filter material  
A shower dechlorinator is fabricated in the form of a short cylindrical filter housing. A first end cap is provided on one end of the housing, and this end cap is threaded onto the outlet pipe for...
5006399 Planar textile structure  
The invention relates to a planar textile structure, particularly a paper machine textile or a textile for the purposes of filtration, comprising a load-bearing basic structure. In order to enable...
5002814 Superabsorbent fibre flocks, methods for their production and application  
The invention relates to superabsorbent fibre flocks comprising a core of absorptive polymer wherein short polymer fibres have been embedded, such short polymer fibres protruding at least...
4988440 Cooking oil filter  
An improved filter comprising a porous sheet of substantially uniform thickness having the following composition: 15% to 35% activated carbon; 15% to 40% calcium silicate, magnesium silicate, or...
4986913 Filter pad  
Filter pads, which are made inherently stable by binders and by removal of the binders can be converted in packings to be maintained under substantially constant surface pressure between rigid...
4983434 Filter laminates  
An expanded porous polytetrafluoroethylene (PTFE) membrane is employed in laminar conjunction with an polytetrafluoroethylene felt; in which the felt is reinforced with a woven scrim.
4976858 Multi-layer filter medium  
A filter medium comprises nonwoven fabric of a lower fiber density and filter paper of a higher fiber density, the nonwoven fabric and the filter paper being superposed in a laminated structure....
4968487 Heat fumigation apparatus  
A heat fumigation apparatus for transpiring a solution of a chemical agent dissolved in a solvent by heating which comprises a container having the solution therein, a wick a part of which is...
4944996 Separating element  
The invention relates to a support intended to receive a mineral membrane for separation procedures, and processes for the production thereof. The support is formed by a carbon-carbon composite...
4936993 Apparatus for separation of blood components  
An apparatus for the separation of blood components, specifically for the removal of white blood cells and blood platelets from blood comprises a tubular housing providing at one end thereof with...
4935132 Drain pipe filter  
A drain pipe filter which includes a wire cage, first and second circular rims and a plurality of oil absorbing elongated fibers. The filter is placed within a drain pipe and functions to absorb...
4925560 Clog resistant high efficiency filter media  
A filter media (10) of the type supported across a fluid flow passage for collecting particulate out of the fluid and subsequently being moved out of the flow passage after becoming congested with...
4915839 Process for surface modifying a microporous membrane  
A process for surface modifying skinless hydrophilic microporous membrane having an internal microstructure throughout said membrane and a surface modifying amount of surface modifying agent bound...
4902433 Equipment and method for filtration using a fabric of polyacrylonitrile fibers  
A backwashable filter element consists essentially of a fabric of polyacrylonitrile fibres wherein the diameter of the fibres is in the range 10 to 50 microns and the density of the element is in...
4902427 Filter for removing heavy metals from drinking water  
A filter for reducing heavy metals in water employs particulate boneblack (bone char) material as a filtration agent. A layer of boneblack (bone char) impregnated filter material and a layer of...
4889630 Filter body  
A self-supporting composite filter for ultra filtration that can be backwashed has a central porous body which supports a thin diaphragm of fine porosity applied to the outer surface of the body....
4877527 Liquid filter of spiral wound construction with alternate layers of a surface area media and a depth media  
A liquid filter cartridge includes a centertube and a filtering media wrapped circumferentially about the centertube to provide a spirally wrapped media. The media includes a surface-type...
4869823 Rotary drum type solid-liquid separation apparatus  
A solid-liquid separation apparatus wherein a solid-liquid mixture is introduced into a rotary filtration drum having filter cloth mounted thereon and is allowed to pass through the filter cloth...
4865733 Cell separator device  
A cell separator which can separate cells, especially lymphocytes, with high selectivity and high efficiency without changing the cell population ratio of the cells. The cell separator comprises...