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5500029 |
Filter element and method of manufacture
A unitary candle filter employs a wrapping of continuous filamentary ceramic material in the form of a yarn or twine wrapped over a porous ceramic support tube to hold the support structure intact...
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5486410 |
Fibrous structures containing immobilized particulate matter
A fibrous structure comprising a composite fiber matrix loaded with immobilized functional particulate and including void spaces forming tortuous flow paths, is provided. The particulate is...
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5484466 |
Air filter element with radial seal sealing gasket
An air filter element includes a media pack formed by inner and outer tubular liners and by a sleeve of filter media located between the liners. Moldable potting compound (e.g., Plastisol) is...
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5480621 |
Electrically conductive honeycomb as an exhaust gas catalyst carrier body
A honeycomb body assembly, in particular a catalyst carrier body, includes at least one electrically heatable honeycomb body having layered metal sheets forming a stack with a plurality of channels...
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5478372 |
High temperature, chemical resistant laminate for filtration systems
A self-supporting laminate formed from an expanded polytetrafluoroethylene membrane material and a coated metal mesh material is described that is self-supporting and can be formed into a pleated...
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5462665 |
Hydrophobic yarn filter fabric for a concrete press mould
A filter for use in a concrete press mould, the filter comprising a fabric being knit or woven at least in part from heat meltable yarns and having a fabric density which permits the passage of...
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5462586 |
Oil-and water repellent gas-permeable filter
An oil- and water-repellent filter which contains a porous filter material that has its internal and external surfaces coated with a compound formed by combining a fluoropolymer having a...
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5460790 |
Catalytic vessel for receiving metal catalysts by deposition from the gas phase
A catalytic vessel for adsorbing catalytic metals, such as from automotive exhaust gases, and carrying out three-way catalysis includes an inlet at an upstream end, a plurality of catalytic...
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5456740 |
High-efficiency metal membrane getter element and process for making
A getter-filter composite membrane element, comprising a sinterable getter material and a sinterable metal filter material, the composite element defining a matrix of substantially interconnected...
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5454858 |
Process of using mist collector cartridge
A mist collector cartridge for collecting airborne liquids, and more particularly, a filter media having vertically oriented interconnected pleats treated with a low surface energy material to...
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5453118 |
Carbon-filled fuel vapor filter system
A carbon-filled fuel vapor filter system, including a polymer housing, the polymer housing including a hose inlet, a hose outlet, and a formed block of carbon pellets or granules with a polymer...
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5435958 |
Method for making a humidity exchanger medium
The humidity exchanger medium is manufactured by forming a laminate of (i) a corrugated sheet and (ii) a flat sheet bonded to points of contact of a ridged surface of the corrugated sheet, the...
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5427597 |
Layered air filter medium having improved efficiency and pleatability
A filter and method for making the filter. The filter has a first filter layer of high efficiency melt blown filter medium having an efficiency of pre-HEPA to HEPA, and a second filter layer of...
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5415675 |
Fragranced return air filters
A fragrance return air filter is provided with an air filter for removing impurities from air being forced through the air filter and at least one fragrant impregnated sponge strip mounted on the...
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5409515 |
Filter apparatus and filter element
A filter apparatus that is compact and that provides a large filtration area includes filter elements each constructed in cylindrical form by spirally winding a filter medium. Such medium includes...
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5397630 |
Expanded fiber composite structure for use in a charged air filter
An expanded fiber composite structure and process for making an expanded fiber composite structure are provided. The expanded fiber composite structure is made up of a fiber mat held in partial...
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5393325 |
Composite hydrogen separation metal membrane
Composite hydrogen separation metal membranes are disclosed that contain an intermediate layer separating a base metal and a coating metal, wherein the intermediate layer is not a pure metal or...
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5389121 |
Composite of layers of glass fibers of various filament diameters
The disclosure of this invention describes a composite glass fiber structure that includes first and second layers of glass fibers extending in adjacent parallel relation; synthetic resin coating...
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5385873 |
High temperature resistant material
A high temperature resistant material including between approximately 28 and 60 dry weight percent of high temperature resistant ceramic fibers and between approximately 20 and 50 dry weight...
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5370721 |
Ceiling fan filter
A ceiling fan filter for filtering the air in a room having a ceiling fan is made from at least one layer of resilient polymeric fiber filter material. Each layer has a length, a width, an upper...
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5358553 |
Membrane and separation process
Mixtures of hydrogen and hydrocarbons may be separated by a membrane formed of a thin dense layer of platinum or palladium on the inside of a porous graphite tube.
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5356461 |
Gas separation membrane
A multilayer membrane for separating gas mixtures includes a polymer supporting membrane with a voids volume of more than 50% and a coating of two or more separating layers made of two or more...
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5356459 |
Production and use of improved composite fluid separation membranes
Multilayer composite membranes are produced in a one-step coating process that provides an interior gas separation layer and an external defect sealing layer.
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5352274 |
Air filter and method
An air filter is provided for removing gaseous impurities from the air such as formaldehyde, acetaldehyde, acrolein, acetone and other chemical compounds. The filter utilizes a plurality of...
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5350443 |
Filter sheet material for passenger cabins in motor vehicles
Disclosed is a filter sheet material for passenger cabins in motor vehicles, especially for the removal of unpleasant exhaust fumes, whereby on one and the same air permeable support material, a...
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5348571 |
Apparatus for dedusting a gas at high temperature
The apparatus for dedusting a gas by electrostatic precipitation includes an advantageously steel housing and a plurality of discharge electrodes and collecting electrodes arranged in the housing....
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5342434 |
Gas permeable coated porous membranes
A gas permeable material having continuous pores through it, in which the pore interiors are coated with a coating composition of the formula: ##STR1## wherein B is selected from the class...
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5338340 |
Filter and method of making same
An odor-removing filter approaching the carbon-particle loading of a filled filter may be formed by spraying or roll coating the adhesive against one or more faces of a porous, fibrous,...
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5332426 |
Agglomerated activated carbon air filter
A self-supporting filter of adsorbent particles is provided by agglomerating the adsorbent particles with a thermoplastic binder and forming a self-supporting filter with a low pressure drop and...
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5322671 |
Catalytic vessel
A catalyst vessel including an inlet at an upstream end, a plurality of catalytic chambers located downstream of the conduit, wherein at least two chambers are connected by a plate having one or...
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5318831 |
Dust collecting filter cloth
A filter cloth having a needle felt layer laminated to a nonwoven fabric sheet made of ultrafine fibers. The fibers of the nonwoven fabric sheet have a fineness of 0.2 denier or less and the fabric...
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5310414 |
Method of forming separation membranes
Gas mixtures such as H 2 /CO 2 may be separated by passage through a filter bed of nanocrystalline ceramic particles on a bed of alumina particles.
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5308703 |
Adsorbent having good heat conductivity
An adsorbent having high adsorption characteristics and high heat conductivity, which comprises a heat conductive sheet and at least one adsorbing sheet provided on at least one surface of the heat...
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5304351 |
Semi-oval shaped carrier having excellent thermal stress resistance and thermal fatigue resistance for automobile exhaust gas-purifying catalyst
A semi-oval shaped metallic carrier having an excellent thermal stress resistance and thermal fatigue resistance and used for an automobile exhaust gas-purifying catalyst, in which the carrier is...
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5304227 |
Electret filters
An electret filter made of a resin whose angle of contact upon wetting with pure water is no smaller than 95 degrees, as well as an electret filter made of a resin whose angle of contact upon...
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5302191 |
Denuder for gas sampling
A denuder for collection of gases, consisting of a plurality of generally parallel elongated tubes having a surface formed from an inert non-metallic material, said tubes being configured and...
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5294411 |
Honeycomb body with heatable catalytic active coating
A catalyst carrier body has a honeycomb element with walls defining a multiplicity of channels through which a gas can flow. The honeycomb element has a catalytically active surface layer. The...
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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...
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5288298 |
Antimicrobial air filter and method of making same
An antimicrobial air filter has a layer of fabric bearing porous activated carbon particulate deodorizing agents, a layer of polymeric expanded foam filter media impregnated with a biostat type...
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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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5283106 |
Nonwoven material of two or more layers, in particular with long-term filter properties and manufacture thereof
There is disclosed a multilayered filter material comprising nonwovens made of fibers or filaments of identical or different polymers, said filter material being composed of a depth filter and a...
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5281255 |
Gas-separation process
A process for separating condensable organic components from gas streams. The process makes use of a membrane made from a polymer material that is glassy and that has an unusually high free volume...
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5273818 |
Expanded fiber composite structure having a cylindrical shape and useful as a filter
An expanded fiber composite structure and process for making an expanded fiber composite structure are provided. The expanded fiber composite structure is made up of a fiber mat held in partial...
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5269925 |
Filter comprising multiple layers of non-woven filter fabric of decreasing porosity
An apparatus and method for removing particles from refinery fluid hydrocarbon and organic streams comprising an elongated housing containing multiple layers of non-woven fabric arranged in said...
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5262129 |
Ozone filter and method of production thereof
An ozone filter for decomposing ozone in the air is disclosed. The ozone filter is composed of a carrier formed by paper made of inorganic fibers having a porosity of 70 to 95%. The carrier is...
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5260035 |
Apparatus and method for modifying gaseous mixtures
An apparatus, system and method are disclosed for modifying a gaseous mixture. The apparatus comprises a unitary body having an inlet end, an outlet end, and a multiplicity of cells extending from...
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5256476 |
Fan blade comprising adsorbent particles, fine plastic particles and reinforcing fibers
Provided are molded adsorbents comprising a mixture of adsorbent particles, fine plastic particles and a reinforcing fiber, the mixture having been molded utilizing the fine plastic particles and,...
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5256103 |
Ventilation arrangement for the interior of a vehicle, in particular a heating and/or air-conditioning unit for a motor vehicle
A ventilation arrangement for the interior of a motor vehicle, having at least a heating or air-conditioning unit. The ventilation arrangement has a fan for air exchange in the interior and a...
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5250094 |
Ceramic filter construction and method
A ceramic fiber filter media is provided which includes ceramic fiber material and an effective amount of fluid fiber material. Preferably the media also contains therein thermoconductive fiber...
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5240480 |
Composite mixed conductor membranes for producing oxygen
The present invention relates to novel multi-layer composite solid state membranes which are capable of separating oxygen from oxygen-containing gaseous mixtures at elevated temperatures. The...
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