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5614096 Compressed adsorbent filter cake  
A compressed adsorbent filter cake for removing caffeine from liquids. The filter cake is composed of a compressed matrix of fibrous material; and adsorbent particulate material integrated within...
5611929 Adsorbent filter bed with pliant and stiff members and method for removing impurities from liquid  
A filter bed for removing impurities from a liquid stream is described. The filter bed comprises a mat of pliant fibers and relatively stiff fibers. The filter bed may additionally include...
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...
5603830 Caffeine adsorbent liquid filter with integrated adsorbent  
An adsorbent filter for removing caffeine from liquids. The filter is composed of a matrix of fibrous material; and adsorbent particulate material integrated within the matrix of fibrous material,...
5601716 Filter material  
The invention concerns a filter material particularly useful in the manufacture of tea bags, coffee bags, coffee filters and the like. The filter material includes an at least two layer non-woven...
5595659 Filter material for removing chlorine from cold water in preparing a human-consumable beverage  
A filter material for removing chlorine from cold water used in preparing a human-consumable beverage having at least one layer of a mat of laid fibers of cellulosic fibers and synthetic textile...
5591335 Filter cartridges having nonwoven melt blown filtration media with integral co-located support and filtration  
Filtration medium is formed of a mass of nonwoven melt blown support and filtration fibers which are integrally co-located with one another. The support fibers have, on average, relatively larger...
5587239 Ball-like structures and contacting materials for wastewater-treatment  
Disclosure describes ball-like structures formed from bundled, crimped fibers rounded around a central portion thereof as a core, the core being formed with a molten-fused structure and having the...
5586997 Bag filter  
The present invention provides a bag filter comprising a melt-blown fibrous nonwoven web formed into a bag configuration with a closed end, an open end, an inside surface, and an outside surface....
5582892 Dimensionally stable particle-loaded PTFE web  
A mechanically compacted composite article comprising a PTFE fibril web that entraps particles retains more of its longitudinal dimension, when subjected to mechanical and/or thermal stress, than...
5554287 Cellulose matrix filter material  
A filter material forming a filter layer consisting substantially exclusively of celluloses and cellulose derivatives. In addition to cellulose acetate fibers, the filter layer contains, in the...
5543060 Method for processing blood for human transfusion  
A device for processing donated blood comprises a porous medium interposed between the collection bag and a satellite bag into which a component separated by centrifugation can be expressed, the...
5538634 Solid phase extraction filtration disk and method for its manufacture  
A solid phase extraction (SPE) filtration disk provides a glass fiber disk embedded with bonded silica/particulate chemistries homogeneously dispersed throughout the disk. Bonded...
5529838 Wool filter for dust-proof mask comprising a nonwoven fabric of random wool fibers and slit film fibers  
A wool filter for a dust-proof mask is disclosed, in which wool fibers are mixed with chemical resin film slitting yarns so as to manufacture a non-woven fabric, thereby doubling the electrostatic...
5527569 Conductive filter laminate  
The present invention is an improved electrically conductive filter media particularly suitable for use in applications where static electricity must be dissipated. The filter media of the present...
5512173 Demineralization apparatus and cloth for packing diluting chamber of the demineralization apparatus  
The invention is a demineralization apparatus comprising an anode chamber disposed at one end of a vessel having an anode at the inside of the anode chamber. A cathode chamber is disposed at the...
5503745 Filtering medium and a process for producing the same  
A filtering medium which is unchanged in the maximum pore size even when heating sterilization, high temperature filtration, etc. are carried out, yet has a high tensile strength, can be processed...
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...
5486411 Electrically charged, consolidated non-woven webs  
A consolidated non-woven web made by post-treating a precursor nonwoven web including consolidating the web laterally by drawing, thereby reducing the maximum pore size measure of the web and...
5478470 Filter material 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...
5470485 Electrostatically-effective air filter material  
An air filter material for intercepting dust is disclosed. The material is free of lubricants and antistatic agents, and consists of a blend of (I) polyolefin fibers and (II) polyacrylonitrile...
5468529 Magnetic filter material comprising a self-bonding nonwoven fabric of continuous thermoplastic fibers and magnetic particulate within the fibers  
A magnetic filter material is disclosed. The filter material according to the present invention comprises a spray-spun, self-bonded, nonwoven fibrous structure consisting essentially of 40 to 99%...
5468536 Sorbent articles  
A microfibrous sorbent article is provided. The microfibrous sorbent article comprises an elongate boom having a substantially oval cross-section. The boom is formed of multiple adjacent...
5466379 Method of removing oil and oil like environmental contaminants from water of ground surfaces  
Oil and oil products are adsorbed with a three-dimensional lattice structure formed by coating individual glass fibers, assembling them and drying them at a temperature of about 150° C. so that...
5464117 Separation-science membrane dispenser  
A separation-science disc dispenser (10) has a storage chamber (12) disposed normally to a base (20) that possesses a slot (24) into which a slidable member (26) resides. The storage chamber (12)...
5456836 High-efficiency, self-supporting filter element made from fibers  
A self-supporting filter element is produced from a precursor fiber web according to one of several methods. The precursor fiber web contains heat-shrinkable fibers or binder fibers or both. The...
5456835 Device and process for removing free hemoglobin from blood  
A filter and a hollow-fiber or flat-sheet membrane for removing hemoglobin from whole blood or blood fractions are disclosed. The filter comprises a laid textile web which has been modified to...
5454946 Filter material for filtering leucocytes from blood  
A filter material for filtering leucocytes from a fraction of or whole human blood, comprises a web having a thickness of at least about 1 millimeter and a bulk density of about 0.05 to 0.4 g/cm3....
5445736 Device and filter element for processing blood for human transfusion  
A device for processing donated blood comprises a porous medium interposed between the collection bag and a satellite bag into which a component separated by centrifugation can be expressed, the...
5443735 Method and device for inhibiting bacterial growth on sorbent media  
A method for inhibiting the growth of microorganisms on sorbents selected from the group consisting of absorbents and adsorbents that are susceptible to undesirable microorganism growth when...
5431829 Polymethylpentene filtration medium  
The present invention provides a filtration medium comprising a fibrous mass of nonwoven polymethylpentene fibers. Moreover, a filter element comprising the aforesaid fibrous mass of nonwoven...
5425877 Membrane element for reverse osmosis  
The invention relates to membrane elements for reverse osmosis, comprising a permeate pipe with a membrane wound around it, around which glass fibers are wound radially and fixed by reaction...
5423989 Plasma forming device  
Devices are provided for producing plasma or serum from blood samples, where the plasma or serum is substantially free of red blood cells, hemoglobin, and metabolites and degradation products...
5417889 Method for preparing filter aid for analytical use  
A method for making a filter aid for tangled short-length ceramic fibers having a bulk density in the range of about 0.02-0.18 g/cm3 includes cutting long ceramic fibers in water, dehydrating,...
5407582 Method of treating power generating plant condensate  
A method of treating fossil-fueled power generating plant condensate at start-up by passing the contaminated condensate at start-up of a power generating plant through a filter medium prior to or...
5403489 Solid phase extraction method and apparatus  
A method and apparatus for performing solid phase extraction (SPE) on a fluid that contains solubles and suspended solids. The method includes: (a) providing a volume of fluid that contains...
5403478 Oil-based fluid absorbent article  
An oil-based article absorbs oil-based fluid on a surface. The article is made of a cloth and a flotation material encased in the cloth to assist in the absorption of oil-based fluid and the...
5380432 Fuel filter with electrostatic charge preventing media  
A fuel filter having a housing made of an electrically non-conductive material has a chamber disposed within the housing and the housing has an inlet and an outlet both in communication with the...
5374192 Child survival and training apparatus  
A survival and training apparatus for children is constructed in the form of a teddy bear. The teddy bear has an exterior casing formed of multiple durable materials including a fluorescent fabric...
5368734 Triboelectric filtration material  
An electrically charged air filter which comprises a blend of clean expanded porous polytetrafluoroethylene fibers and clean polyamide fibers.
5364533 Process for separating serum and plasma  
A process for separating and recovering serum and plasma components from a whole blood sample including passing a whole blood sample through a separating filter formed of a blood cell separating...
5360654 Sorbent articles  
A microfibrous sorbent article is provided. The microfibrous sorbent article comprises an elongate boom having a substantially oval cross-section. The boom is formed of multiple adjacent...
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...
5346624 Method and apparatus for treatment of aqueous solutions  
A method and apparatus for removing ionic and suspended particulate impurities from a liquid by directing the liquid through a bed including a mixture of ion exchange fibers and inert fibers. The...
5340479 Depth filter cartridge and method and apparatus for making same  
A depth filter formed of a plurality of substantially continuous intertwined filaments including a central support zone formed of support filaments having a first diameter and a filter zone formed...
5316674 Device for processing blood for human transfusion  
A device for processing donated blood comprises a porous medium interposed between the collection bag and a satellite bag into which a component separated by centrifugation can be expressed, the...
5300234 Method of filtering beverages and chemical, pharmaceutical, or similar liquids  
A method of filtering beverages and other liquids. To avoid the considerable ecoproblems encountered with the filter aids of known procedures, which must be thrown away, the filtering active...
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...
5292438 Filtration medium including uniformly porous planar substrate and uniformly spaced apart thermoplastic resin  
A novel filtration medium, preferably of the closed loop belt type, comprising a woven substrate which is overlaid by a disparate layer comprising a plurality of individual thermoplastic resin...
5290449 Blood filter material  
A filter material for filtering leucocytes from a fraction of or whole human blood, comprises a textile web having a thickness of between about 2 millimeters to about 12 millimeters and a bulk...