Class 55/526 - Wadded or compressed

Subclass of Class 55 - Gas separation
Definition: Apparatus in which the mesh or expanded sheet has been gathered
No. of patents: 47
Last issue date: 02/01/2011

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Number	Title	Issue Date
7879126	Diesel particulate filter An improved particulate filtration system has an inlet, for the fluid to be filtered, connected to a housing containing a filter medium such that the fluid passes through the filter medium, and an outlet for the filtered fluid to exit. The filtration system's improv...	02/01/2011
7435280	Wire mesh filter with improved hoop strength A compressed wire mesh filter for an airbag assembly has one or more wires wrapped around the outer perimeter of the filter prior to final compression of the mesh to increase the hoop strength of the filter. ...	10/14/2008
7341615	Filter with locating feature A filter (10) and an inflator assembly (15) for use in an inflatable vehicle passenger restraint system. The inflator assembly (15) includes an inflator housing (70) having a wall (71), a combustion chamber (72) formed in an...	03/11/2008
7291196	Filamentary pad for improved mist elimination and mass transfer An apparatus and method of making a filamentary pad for improved mist elimination and mass transfer comprising a plurality of layers of mesh, each layer of mesh having a plurality of mesh openings defined therein. A plurality of preferential gas flow openings, each ...	11/06/2007
7264645	Plate-shaped filter element A plate-shaped filter element made from several wire cloth layers and having at least one layer in the form of a filter cloth is designed to allow particles of a certain size can be filtered out from a filterable material, whereby, in particular, particles can be fi...	09/04/2007
7208026	Heat-resistant filter To provide a heat resistant filter of which the reduction of tensile strength and folding endurance is small even when used as a filter material for a filter used at high temperatures, failure of the filter material is difficult even when used at high temperatures, ...	04/24/2007
7189274	Exhaust gas filter with at least one filter layer and method for producing a filter layer An exhaust gas filter for cleaning an exhaust gas of an internal combustion engine includes at least one strip-shaped filter layer made of a material through which a fluid can at least partly flow. The filter layer has a length in a longitudinal direction and a widt...	03/13/2007
7070640	Polymer, polymer microfiber, polymer nanofiber and applications including filter structures Disclosed are improved polymer materials. Also disclosed are fine fiber materials that can be made from the improved polymeric materials in the form of microfiber and nanofiber structures. The microfiber and nanofiber structures can be used in a variety of useful ap...	07/04/2006
7000777	Vibratory separator screens Screen assemblies for a vibratory separator, the screen assemblies in certain aspects having at least two screening members, the at least two screening members connected by sewing material, and methods for making such screen assemblies. ...	02/21/2006
6840977	Coolant for air-bag gas generator and production method therefor The present invention provides a coolant for an air bag inflator in which unevenness in density in the axial direction is reduced even though the coolant is compressed in its axial direction. The coolant is a molded product made of wire rods and compressed in...	01/11/2005
6743273	Polymer, polymer microfiber, polymer nanofiber and applications including filter structures Disclosed are improved polymer materials. Also disclosed are fine fiber materials that can be made from the improved polymeric materials in the form of microfiber and nanofiber structures. The microfiber and nanofiber structures can be used in a variety of useful ap...	06/01/2004
6196581	Airbag inflator and an airbag apparatus An airbag inflator includes non-azide gas generating propellants, surrounding an ignition device, disposed inside a housing. The gas generating propellants are surrounded by a coolant/filter device having a pressure loss of 0.3×10-2 to 1.5×10...	03/06/2001
5904756	Mist recovering method and apparatus In a mist recovering apparatus for recovering a mist contained in a gas, provided with a filter having pores of pore size increasing from a gas inlet side toward a gas outlet side, the gas containing the mist is passed from the gas inlet side of the filte...	05/18/1999
5894013	Catalyst for purifying exhaust gas A catalyst for purifying an exhaust gas includes a substrate, a catalyst carrier layer, a catalyst ingredient and a hydrocarbons supplier. The catalyst carrier layer is formed on the substrate. The catalyst ingredient is loaded on the catalyst carrier lay...	04/13/1999
5849054	Filter for an inflator The filter for an inflator of the present invention includes a cylindrical compressed mesh unit, which is multi-folded in its substantially entire length, and the multi-folded mesh unit is provided by folding a cylindrical wire mesh knitted from a single ...	12/15/1998
5833853	Radial-flow filter and method of manufacture A method of manufacture of a radial-flow filter particularly suitable for use as an input filter in a subterranean fluid (oil, gas, water) well starts with a length L of multi-perforate pipe, which may be an integral part of the production tubing of the w...	11/10/1998
5795371	Device and method for the sterilization of compressed air for medical use An apparatus and method for sterilizing air for medical uses applied to air compressors used in dentists' apparatuses. According to the invention, we use the heat of the air coming out from the air outlet provided on the head of the compressor, to reduce ...	08/18/1998
5711879	Radial-flow filter and method of manufacture A method of manufacture of a long radial-flow filter particularly suitable for use as an input filter in a subterranean fluid (oil, gas, water) well starts with a length of multi-perforate pipe, which may be an integral part of the well 's production tubi...	01/27/1998
5660606	Inflator filter for producing helical gas flow A filter (20) for use in an inflator assembly (10) is formed by combining a layer of filter media (22) with a barrier element such as metal foil sheet backing (24), and then subsequently wrapping the filter a plurality of times about a combustion chamber ...	08/26/1997
5441710	Air flow sterilizer An air flow containing microorganisms including fungal spores is sterilized by heating the air flow to a sufficient temperature to weaken cellular walls of the microorganisms, inducing turbulence in the air flow; and providing in the air flow sufficient c...	08/15/1995
5409513	Apparatus for removing caprolactam emissions Disclosed is an apparatus for removing caprolactam emissions from a broad variety of sources, especially from caprolactam polymerization operations and thermoplastic polycaprolactam processing operations which contains a header for collecting air containi...	04/25/1995
5217515	Abatement of tinkles in wire mesh Method and product made for preventing loose tinkles in a wire mesh product. Opposite ends of a sock of knitted wire mesh are subjected to a single-ply bonding operation such as electric resistance welding, thereby bonding the tinkles to the mesh. The soc...	06/08/1993
5204068	Filter A filter filters the gas generated by an air bag inflator. The gas comprises an alkali metal oxide. The inflator comprises a non-woven metal fibrous mat and small particles of a silicon compound, reactive with the alkali metal oxide, adhered to strands of...	04/20/1993
5135611	Method and apparatus for combined spray drying and gas cleaning A combined spray dryer and gas filter vessel in which a solution containing sulphuric acid and solids, and a hot drying gas, are introduced vertically through the top of the vessel into a spray zone. Solids are removed at a single point at the bottom of t...	08/04/1992
5064459	Filter arrangement for airbag gas generators A filter arrangement for an airbag gas generator of the type utilizing gas-producing propellant charge to generate gas to inflate an airbag, and having a filter chamber exhibiting contoured interior surfaces. A gas permeable filter material with a large e...	11/12/1991
5053122	Oil filtration and exhaust apparatus An oil filtration and exhaust apparatus for filtering particulates and gases from the recirculating oil of a vacuum pump which is adapted to remove gases from a process enclosure. The oil filtration and exhaust apparatus removes particulates and gases fro...	10/01/1991
5015383	Slotted screen scallops for high loading pressures and method of making same An elongated screen assembly, which in various forms, is useful as a scallop in a reactor, or as an underdrain for a gravity filter system, has a cross-section in a direction normal to its axis which is at least twice as wide as it is high. A method is al...	05/14/1991
4883507	Filter comprising a material obtained by freeze-drying, method of preparation and use especially in pharmacy The present invention relates, by way of a novel industrial product, to a filter for gaseous fluid, which contains a lyophilized and compressed filter element in the form of a porous layer....	11/28/1989
4765915	Porous filter media and membrane support means A method for filtering liquid or gaseous materials where the filtration is conducted with a porous filter media prepared from an aqueous wet-laid, lofted fiber-reinforced composite sheet, the composite sheet comprising a heat fusible polymer, reinforcing ...	08/23/1988
4636231	Panel air filter A filter element and method for making it include the steps of providing a pleated paper filtering media and providing a batt-like filtering media containing thermoplastic fibers which is slightly larger than the pleated paper filtering media. A ring-shap...	01/13/1987
4600562	Method and apparatus for filtering engine exhaust gas A filter for treating a particulate containing exhaust gas stream being discharged from an internal combustion engine. The filter includes a compressible bed through which the exhaust gas flows, said bed being comprised of a mass of randomly disposed meta...	07/15/1986
4511539	Recovery of precious metal The invention relates to the recovery of precious metal lost from precious metal-containing catalysts for example the precious metal-containing catalysts which are used in the production of nitric acid by ammonia oxidation. In more detail, a getter (as he...	04/16/1985
4460552	Process for the separation of air components, such as difficultly absorbable air impurities, out of air-gas mixtures The present invention provides an apparatus and process for separating and removing chemical impurities from air which impurities are difficult to absorb. The apparatus for carrying out the process of the present invention comprises a reaction tower (11, ...	07/17/1984
4329844	Diesel exhaust filter-incinerator A diesel exhaust particulate filter contains a high temperature depth type filter material arranged in a reflexive path throughout which diesel particulates are collected from engine exhaust gases passed therethrough. Upstream and downstream portions of t...	05/18/1982
4322385	Filters for vehicle occupant restraint system fluid supplies A filter assembly is provided for fluid supplies for vehicle occupant restraint systems which employ a combustible gas generator to inflate a confinement upon the occurrence of a collision. The filter assembly includes two sets of layers of porous filter ...	03/30/1982
4279629	Fire prevention filter for chimneys and the like This invention is concerned with a removable filter to prevent the buildup of Creosote in chimneys which become vulnerable to fires. A hollow enclosure means that is adapted to connect between the chimney and the fire source has within it a support for mountin...	07/21/1981
4268289	Flame arresting air filter element A flame arresting filter element for air intake systems has an outer ring of pleated filtering paper and an inner, concentric ring formed of expanded metal foil, longitudinally stretched and laterally compressed so as to be adapted to diffuse and quench f...	05/19/1981
4261718	Filter bed of compressed coils A filter bed for an air cleaner, or the like, comprising a compressed mass of coils each having axially spaced portions of different diameters. With this construction, the tendency of the coils to nest together over their entire lengths is reduced, and th...	04/14/1981
4256472	Mist filter for extracting moisture from outlet air from auto air conditioner In a mist filter for use in eliminating moisture from the humidity laden air traversing through the evaporator of an automobile or other air conditioner, the filter comprises a pair of corrugated screens, with the corrugation of each screen being arranged...	03/17/1981
4255173	Lead filter for internal combustion engine exhaust gases An automobile type exhaust gas lead filter is particularly applicable to diesel engine smoke reduction. It has a tubular housing with alumina coated metal wire fibers as the filter bed, which is centrally located. There are open spaces forming plenums at ...	03/10/1981

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Class 55/526 - Wadded or compressed