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Document Title |
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7618480 |
Filter assembly and method
A filter assembly comprising a filter head having inlet and outlet ports; a filter bowl attached to the filter head, wherein the filter bowl has a drain hole located at the bottom of the filter...
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7601192 |
Recirculation filter
The invention relates to an improved electrostatic filter and filter media for filtering contaminants, such as particulates and vapor phase contaminants, from a confined environment such as...
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7597745 |
Filter materials for adsorbing hydrocarbons
A porous filter medium forms a filter or liner for extracting hydrocarbons from vapors emitted from a motorized vehicle, device or appliance fuel tank. The filter medium is a polymer network of a...
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7597733 |
Liquid absorbing filter assembly and system
A filter assembly for use in sidestream gas sampling assembly. The filter assembly of the present invention includes a hydrophilic member that is constructed from a porous material and is situated...
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7594946 |
Air-cleaner filter material for internal combustion engine and air-cleaner element
The invention provides an air-cleaner filter material for an internal combustion engine, which comprises a dust-collecting layer comprising a melt-blown nonwoven fabric having a maximum pore size...
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7592178 |
Filter integrity tester
An apparatus and method for testing the integrity of a filter under humid conditions is provided. The apparatus includes an injection assembly which is located on a first side of the filter and a...
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7591883 |
Microfiber supported nanofiber membrane
A nanofiber membrane is formed on a microfiber membrane. The nanofiber membrane may be electro sprayed directly onto the microfiber membrane and becomes integrated with the microfiber membrane to...
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7588619 |
Cross-flow filter media and filter assembly
A filter media including a first sheet having an inner surface and an outer surface, a second sheet having an inner surface and an outer surface, wherein the inner surface of the first sheet and...
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7572307 |
Filter assembly for vacuum cleaner and vacuum cleaner incorporating such assembly
A filter apparatus and a vacuum cleaner incorporating the filter apparatus are disclosed. The filter apparatus has a first, fine filter assembly and a second, coarse filter assembly. The fine...
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7559966 |
Exhaust gas filter
An exhaust gas filter comprises an outer tube, a plurality of center-closing filter units each having an isolation plate; and a plurality of center-opening filter units having an annular isolation...
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7556663 |
Dual pleated air filter
A dual pleated air filter according to the present disclosure may include two or more generally parallel, pleated filter elements layered perpendicular to the influent air stream and having the...
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7544225 |
Device for filtering a gas flowing through a line
A device for filtering a gas flowing through a line, particularly for filtering the air flow in an intake line of an internal combustion engine, including a filter element which is insertable in a...
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7534287 |
Porous sintered composite materials
The present invention is directed to porous composite materials comprised of a porous base material and a powdered nanoparticle material. The porous base material has the powdered nanoparticle...
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7527663 |
Ventilation system providing NBC protection
A ventilation system providing NBC protection for at least one closed security space and/or protection space with constant slight excess pressure, the ventilation system substantially having an air...
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7520923 |
Antimicrobial filtration article
The present invention relates generally to a filtration article, such as a protective facemask, a method for using a filtration article, and a method for preparing a filtration article. In...
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7520913 |
Non-cylindrical filter elements, and methods
A filter element that has at least two, planar, non-curved filtration panels. In a preferred embodiment, the filter element has three panels, providing a generally triangular filter element. The...
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7520280 |
Rebreather apparatus
A rebreather apparatus having a gas scrubber canister with a generally oval or elliptical cross section. The canister being configured so that exhaled gases pass through the adsorbent in a radial...
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7517944 |
Process for producing polycarbonate
Provided a process for producing a polycarbonate which comprises reacting an aqueous alkali solution of a dihydric phenol with phosgene in the presence of an organic solvent to produce a...
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7517377 |
Dust collecting unit for use in cleaner
This dust collecting unit for use in a cleaner includes an inlet port through which air and dust is taken in, a dust catch room into which the air and dust taken in through the inlet port is led,...
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7513923 |
Variable impedance air filter for electronic systems
In one embodiment, a removable air filter is mounted proximate to where electrical equipment is mounted in a case. The filter has at least two sections with different finite air impedances. The...
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7501013 |
Fuel adsorption sheet, manufacturing method thereof, and air cleaner
A fuel adsorption sheet includes a sheet base. A fuel adsorbent and a reinforcing net are arranged in the sheet base. The reinforcing net is formed by a plurality of cords extending in at least...
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7501003 |
Composite filter media
The invention provides a renewable composite filter media for removal of particles from a fluid stream. The filter media includes a membrane filtration layer comprising a porous polymeric membrane...
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7494587 |
Device having multi-pores magneto-rubber filter
A filter is made of a rubber having magnetism to attract metal paricles in a fluid for filtering impurities. The filter can be used in a hydraulic transmission system or even an air filter used in...
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7488364 |
Layered disposable air filter with dust capture topology
An apparatus for air filtration comprises a substrate, the substrate including a first side and a second side, a plurality of openings in the substrate, each opening in the plurality of openings...
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7485169 |
Semiconductor manufacturing facility utilizing exhaust recirculation
A semiconductor manufacturing process facility requiring use therein of air exhaust for its operation, such facility including clean room and gray room components, with the clean room having at...
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7485165 |
Air filtering device for protection suits
An air filtering device for protection suits includes a case in which a fan unit is received and a filtering unit is engaged with a hole in a wall of the case and located outside of the case. A...
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7468099 |
Image forming apparatus
An image forming apparatus includes an image forming portion that forms a toner image on a recording material, in which the image forming portion is provided in a main body of the image forming...
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7462213 |
Method of minimizing cross contamination between clean air rooms in a common enclosure
A method of operating a plurality of clean room in a compound within a common enclosure and supplying each room with filtered air by a blower-filter unit by arranging the clean rooms and the...
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7455706 |
Filter system for electronic equipment enclosure
A filter system including a method for self cleaning the filter system of an electronic equipment enclosure where air flow is monitored either by monitoring fan performance of air flow velocity...
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7452412 |
High-efficiency filter device and method for making same
A high-efficiency filter for removing or collecting trace levels of chemical compounds includes a randomly oriented glass substrate, a primer coating and a carbon coating. The present filter is...
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7427307 |
Electric vacuum cleaner
An electric vacuum cleaner has a dust collecting section for removing dust and an electric air blower mounted in its main body and comprises a filter for removing dust from air sucked into the dust...
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7416576 |
Fiber bed assembly and fiber bed therefor
A fiber bed assembly for a mist eliminator that operates at high efficiency and inhibits re-entrained liquid from leaving the mist eliminator. The fiber bed assembly has a construction that...
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7416574 |
Filter apparatus, exposure apparatus, and device-producing method
A filter apparatus for improving gas temperature stability while maintaining a high impurity removal capacity. The filter apparatus includes a filter for removing impurities from a gas and a...
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7413587 |
Disposable filter for a fluid handling device and a method for using the same
A fluid handling device having a support frame and a plurality of filter frames attached thereto. Each of the filter frames has an outer frame member that removably secures a filter; the filters...
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7413586 |
In-tool and out-of-tool protection of extreme ultraviolet (EUV) reticles
A reticle carrier for an Extreme Ultraviolet (EUV) reticle may include nested grids of electret fibers to provide active protection from contamination without a power supply. The reticle carrier...
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7399333 |
Filter element and process for producing the same
The present invention provides a filter element and a method for producing the same, which do not generate pollution during waste disposal, can be easily produced, improve the pressure loss and...
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7396376 |
Seal arrangement for filter element; filter element assembly; and, methods
A filter element arrangement is provided which includes a media pack comprising Z-filter media, a preform and an overmold sealing a portion of the interface between the preform and the media pack,...
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7390342 |
Filter element
A hollow filter element for removing material that is entrained in a gas stream. The filter element comprises a wall of a filtration medium which defines a hollow space so that a gas stream can...
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7387656 |
Fiber collecting media strip for a mist eliminator
A fiber bed mist eliminator has a fiber bed which is formed of a composite fiber bed collecting media strip including a collection layer which is not subjected to needle punching. The fiber bed can...
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7387655 |
Air filtration unit
An air filtration unit for use in a work environment includes a housing disposed with an air filtration system and light source. The housing includes a handle and corner caps to prevent damage and...
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7357823 |
Disposable filter within a removable chamber
A vacuum cleaner includes a housing, a nozzle inlet, a suction generator and a dirt cup. The dirt cup includes a dirt collection chamber, an inlet and an open end. Additionally, the vacuum cleaner...
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7354473 |
NBC-building protection system and method
A combined building air-conditioning unit and NBC protection system, containing an enclosed space housing a building air-conditioning unit and further including a plurality of chambers, a first...
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7344582 |
Filter assembly
This invention relates to a filter assembly for removing material that is entrained in a gas stream. The filter assembly comprises a housing which comprises head and body parts, with an inlet port...
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7344580 |
Filter unit
Converting machines give rise to polluted air which must be removed with the aid of fans and filters. The invention aims at removal of the polluted air in such a way that the servicing interval is...
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7332010 |
High pressure filter/separator and locking mechanism
Disclosed is a two or three phase separator including a centrifugal separator, a demister (if a three phase separator), and a filter contained within a housing. The filter uses an outside-in flow...
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7332009 |
Separator arrangement for gas/liquid separation; apparatus; and, methods
A serviceable gas/liquid separator is provided. The gas/liquid separator has a cross-section with one long axis and one short axis, with an aspect ratio of at least 1.3. A preferred cross-section,...
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7332004 |
Effluent filtering and containment apparatus
An apparatus for filtering and containing grease or other effluent discharged from a drain spout of an exhaust fan includes a hollow housing and top and bottom portions covering each end thereof. A...
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7329293 |
Disposable filtration system for bagless vacuum cleaners
According to the present invention, a bagless vacuum cleaner includes a dust chamber, a primary filter and a second filter. The dust chamber includes an entrance and an exit. The primary filter is...
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7326272 |
Synthetic, duolayer, filter element
A multilayer, pleatable, filter material is made of at least one melt-blown, fleece layer and at least one carded, fleece layer that are attached to one another without use of adhesives for...
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7326266 |
Coalescing type filter apparatus and method
A coalescing type gas filter includes a filtering element enclosed in an inner chamber which is housed in an outer chamber and a drain device to simultaneously drain accumulated liquid in both the...
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