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5776385 |
Method of making activated carbon composites from supported crosslinkable resins
A method for making an activated carbon composite which involves providing a crosslinkable resin and a support material which is wettable by the resin. The support material can be cotton, chopped...
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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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5766290 |
Cross flow filter design
An improved cross flow ceramic filter is disclosed for utilization in high temperature, high pressure applications such as found in hot gas cleaning in coal based power generation. The cross flow...
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5753014 |
Membrane filter and a method of manufacturing the same as well as a membrane
A membrane filter comprises a membrane provided with pores with a pore size between 5 nm and 50 μm. The membrane may easily and reliably be processed with use of silicon micromachining through...
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5750026 |
Device for removal of contaminants from fluid streams
A device for purifying a workstream of contaminants and method of making. One device is made of an inorganic monolithic porous particulate filter and a continuous uninterrupted coating of activated...
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5744036 |
Pleated filter arrangement
A pleated filter medium arrangement including a sheet of pleated porous filtering media nestingly engaged between adjacent pleats by a pleated sheet of thermobondable plastic screening with...
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5743940 |
Process for producing gas adsorbent
A process for producing a fabric absorbent that is capable of efficient removal of odorous substances, in particular malodorous substances. The absorbent is obtained by exposing an organic...
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5741421 |
Filter device
A filter device with a preferably hollow-cylindrical, pleated filter element which is arranged concentrically around a cylinder axis and through which a medium to be filtered passes. Seals are...
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5730770 |
Two-stage air filter for use with electronic enclosures
A two-stage filter unit utilizing coarse and fine filter media in series, with the coarse filter media being detachable from a housing containing the fine filter media, the filter being especially...
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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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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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5714126 |
Respirator filter system
The present invention provides a respirator filter system suitable for filtering toxic agents, including organic vapors, acid gases, formaldehyde, ammonia, and methylamine as well as pesticides, CS...
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5702503 |
Composite gas separation membranes and making thereof
A composite membrane made of an asymmetric porous support and an ultrathin layer having a thickness of less than 100 nm is provided. A method of making the membrane and method for carrying out gas...
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5698165 |
Ozone filter and process for producing the same
An ozone filter comprising a paper carrier made of inorganic fiber and having a high porosity is disclosed. Supported by the carrier is a zeolite powder having an SiO 2 /Al 2 O 3 molar ratio of...
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5690719 |
Removable filter for a forced air duct grill
A filter apparatus for mounting over an opening at an end of a forced air system duct has a filter frame with sidewalls between open front and back ends and a channel which opens inwardly of the...
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5681630 |
Air intake filter for electric appliances
Add-on filters for heated-air blowers and other electric motor-powered appliances. The filters are fabricated from a washable, flexible, reticulated foam which traps even minute solid and liquid...
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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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5677031 |
Porous PTFE structures
A porous polytetrafluoroethylene (PTFE) structure particularly for use as a liquid filter comprises particles of granular-type PTFE fused together to form a porous integral network. The structure...
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5674302 |
Automobile filter element
A filter element has a wavy filter portion including a plurality of ridges of a filter material, which are juxtaposed to one another and closed at their sides, and a flange portion extending along...
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5669949 |
Air filtration arrangement
Constructions and methods are described for collecting particulate material from gas streams. In certain specifically described air filter arrangements, a first, rigid, filter construction is used...
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5667544 |
Extended life filter apparatus
A particulate filter for a fluid stream being of preselected thickness with progressively increasing fibrous density from the upstream face toward the downstream face, the filter having a...
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5665148 |
Adsorption air filter and method for its production
An adsorption air filter has a self-supporting shaped structure of adsorber particles of regular or irregular form, which are joined to one another by binder particles also of regular or irregular...
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5662728 |
Particulate filter structure
A particulate filter structure and method for making the structure are disclosed. The structure includes a stable framework of relatively large denier fibers having a lower melting component and a...
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5641332 |
Filtraion device with variable thickness walls
This invention is directed at a cross-flow filtration device for receiving a feed stock and for separating the feed stock into filtrate and retentate, comprising a multicellular monolith structure...
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5637135 |
Chromatographic stationary phases and adsorbents from hybrid organic-inorganic sol-gels
Chromatographically active stationary phases and adsorbents are made from sol-gels produced by the hydrolysis and condensation of alkoxysilanes that contain hydrolyzable alkoxy groups and...
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5634952 |
Exhaust gas filter and apparatus for treating exhaust gases using the same
An imaginary plane dividing a profile of a rough surface of a filter into halves with equal volume is defined as a mean plane. Assuming cutting the filter with the mean plane, a ratio of the total...
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5614001 |
Hydrogen separator, hydrogen separating apparatus and method for manufacturing hydrogen separator
A hydrogen separator has a porous substrate having a through-hole, and a metal having a hydrogen separating ability coated on the inner surface of the through-hole of the porous substrate to close...
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5611832 |
Diesel particulate filter apparatus
According to the present invention, a filter body for collecting particulates is constituted of a fiber laminate material produced by laminating a fiber material comprising a core material in the...
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5609761 |
Filter medium and process for making same
In a process for the production of a filter medium in particular in the form of a pleated bellows for a filter cartridge for dust separation, at least one surface of the filter medium is provided...
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5607490 |
Filter having chemical resistance, antistatic property and water vapor resistance, and process for producing the same
A water vapor resistant filter comprising a permeable molded material, nonwoven fabric or felt comprising polyimide fiber having a repeating unit represented by formula (I) is described. The...
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5607647 |
Air filtering within clean environments
An air filtering system for filtering air streams for use in a clean environment to effectively remove a process-limiting molecular contaminant therefrom comprising sequentially arranged upstream...
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5593646 |
Method for producing an exhaust gas cleaning metal carrier
A metal carrier and a production method thereof for carrying an exhaust gas cleaning catalyst for automobiles, autobicycles, and industrial equipment. The metal carrier includes a metal honeycomb...
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5593482 |
Adsorbent assembly for removing gaseous contaminants
An adsorbent assembly is provided for removing gaseous contaminants from an enclosure having an adhesive layer, an adsorbent layer and a filtering layer. An exterior mounted assembly is also...
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5588976 |
Air filtration media
A fiber glass air filtration media includes a blanket of glass fibers with about 25% to 35% by weight of the glass fibers being fine glass fibers having an average diameter of less than 3.5 microns...
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5582632 |
Corona-assisted electrostatic filtration apparatus and method
A corona-assisted electrostatic filtration apparatus which includes a cathode, an anode filter element, and a means of establishing a nonalternating potential difference between the cathode and the...
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5575832 |
Regenerative hygroscopic filter and method
A regenerative hygroscopic filter having a housing containing an inlet port and an outlet port, and, a hydrophilic filter element positioned within the housing and disposed between the inlet and...
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5573811 |
Air filter and method of construction
The invention relates to a method of treating reticulated foam with a controlled migration treatment medium to produce an improved air filter. Reticulated foam is treated with a highly viscous oil...
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5571604 |
Adsorbent fibrous nonwoven composite structure
Disclosed is an adsorbent fibrous nonwoven structure composed of (1) a matrix of pulp fibers having a first exterior surface and a second exterior surface; and (2) an adsorbent material integrated...
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5567536 |
Inorganic ceramic paper, its method of manufacturing and articles produced therefrom
An inorganic ceramic paper includes inorganic ceramic fibers and an inorganic binder system of fibers consisting essentially of silica. The binder system initially includes organic materials as...
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5567231 |
Deodorants, deodorant sheets, filter sheets and functional papers as well as filtering mediums for exhaust gas
Deodorant comprising 5 to 100% by weight of a calcium phosphate compound having a molar ratio of Ca/P of 0.8 to 2.0, a deodorant sheet and filter sheet containing such calcium phosphate compound,...
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5556439 |
Unitary filter for pyrotechnic air bag inflator
A unitary rigid filter for use in a high temperature, high pressure application in a pyrotechnic airbag inflator includes a matrix structure formed of porous carbonaceous foam material coated with...
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5547481 |
Filter element having an inherently stable, permeably porous plastic body
A filter element for separating solid particles from a fluid medium. The filter element comprises a permeably porous, substantially inherently stable shaped body made substantially of polyethylene....
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5538545 |
Nonparticulating adsorbent recirculating filter
The present invention is an improved sorbent filter for use in both particulate filtration and absorption of gaseous contaminants in a variety of applications, such as for filtration in a computer...
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5536302 |
Adsorbent for removal of trace oxygen from inert gases
An adsorbent and a process for its use in removing trace oxygen from an inert gas. The adsorbent comprises a porous reducing support such as activated carbon, carbon black, coal, petroleum coke and...
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5534471 |
Ion transport membranes with catalyzed mixed conducting porous layer
The present invention relates to surface catalyzed ion transport membranes which demonstrate superior oxygen flux. The membranes comprise a porous mixed conducting multicomponent metallic oxide...
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5529609 |
Air cleaner having a three dimensional visco-elastic matrix of material
An air cleaner comprises a cleaning element having a three-dimensional visco-elastic matrix of material for adsorbing airborne particulate matter and for absorbing volatile liquids and a variety of...
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5525136 |
Gasketed multi-media air cleaner
An air cleaner incorporating a plurality of filtration techniques within a rigid, gasketed frame designed to fit in conventional filter tracks. A perimeter gasket attached to the frame leaving air...
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5518530 |
Connected body comprising a gas separator and a metal, and apparatus for separating hydrogen gas from a mixed gas
A connected body including a gas separator 10 and metallic members 21 and 22, each of which has a partly oxidized surface to be reliably connected with the gas separator. The gas separator includes...
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5512075 |
Folded filter element for filtering fluid
A deodorizing air filter is capable of improving the strength and deodorizing ability while suppressing an increase of ventilation resistance and pressure loss. A filter body has a series of filter...
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5505769 |
Titanium silicate aerogel element and humidity exchanger using matrix of aerogel element
A humidity exchanger element is formed from a corrugated sheet and a flat sheet laminated to points of contact of a ridged surface of the corrugated sheet. Each corrugated and flat sheet is formed...
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