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| Number | Title | Issue Date |
| 8187354 | Filtration media for filtering particulate material from gas streams A composite fabric formed by depositing a web of nanofibers electroblown from a first polymer onto a first support web comprising fibers of larger average diameter than the nanofibers spun from a compatible material, in the absence of an adhesive between the webs, a... | 05/29/2012 |
| 8182569 | 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, is an elliptical cross-section. Assemblies in which the separator uni... | 05/22/2012 |
| 8177876 | Reduced solidity web comprising fiber and fiber spacer or separation means A web can comprise a substantially continuous fiber mass and a separation means dispersed into the fiber. The web having a preferred thickness resulting from forming a polymer material and a particulate into a fine fiber layer can have a variety of end uses. A filtr... | 05/15/2012 |
| 8177875 | Aerosol separator; and method Crankcase ventilation arrangements are shown. Preferred wet laid media materials, for use in such arrangements are described. Also described and shown are example crankcase ventilation components, parts for use with a preferred media described and characterized.... | 05/15/2012 |
| 8147583 | Multiple layer filter media The invention provides a multiple layer filter media for removal of particles from a fluid stream. The multiple layer filter media may include a depth filtration layer, a membrane filtration layer and a support layer. Additional layers may be present. The membrane f... | 04/03/2012 |
| 8147584 | Filter medium The present invention relates to a filter composed of a multi-ply filter medium, which comprises at least one non-woven stiffening layer, at least one filtration layer, at least one covering layer and where necessary at least one non-woven microfibre layer, the non-... | 04/03/2012 |
| 8142535 | High dust holding capacity filter media Provided is a method of forming a self supporting fibrous nonwoven filter media comprising dispersing glass fibers, crimped polymer fibers, and cellulosic fibers in a fluid dispersion. The dispersion is subjected to a moving forming wire to form a fibrous web. Binde... | 03/27/2012 |
| 8105411 | Fluid filter system and method A system, in certain embodiments, includes a fluid filter that includes a first set of strips of a first filter material having a first density, and a second set of strips of a second filter material having a second density greater than the first density, wherein th... | 01/31/2012 |
| 8105410 | Water dissipation device with capillary action A water dissipation device for a breathing circuit is provided, including a bucket-shaped hollow composite structure having walls made of a first inner layer made of water vapor wicking material, and a second outer layer of a water vapor breathable medium surroundin... | 01/31/2012 |
| 8092566 | Filtration media for filtering particulate material from gas streams A composite fabric formed by depositing a web of nanofibers electroblown from a first polymer onto a first support web comprising fibers of larger average diameter than the nanofibers spun from a compatible material, in the absence of an adhesive between the webs, a... | 01/10/2012 |
| 8057567 | Filter medium and breather filter structure Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. Such filter units can be placed in t... | 11/15/2011 |
| 8029588 | Fine fiber media layer 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... | 10/04/2011 |
| 8021455 | Filter element and method A filter element having multiple formed layers of filtration media is disclosed. The media are layered so as to form a pore size gradient. The filter element is capable of removing both solid and liquid particulates from a moving fluid stream. The filter element has... | 09/20/2011 |
| 8012231 | Particulate matter analyzer, collecting filter and system for analyzing and collecting samples from fluids A particulate collection system, including a particulate matter analyzer and collecting filter, provides a method of analyzing and collecting samples from fluids, such as collecting particulate matter from air. A mass measuring unit and composition analyzing unit ca... | 09/06/2011 |
| 7993427 | Filter medium The present invention relates to a filter composed of a multi-ply filter medium, which comprises at least one non-woven stiffening layer, at least one filtration layer, at least one covering layer and where necessary at least one non-woven microfiber layer, the non-... | 08/09/2011 |
| 7942948 | Filter element including a composite filter media A filter element includes, in an exemplary embodiment, a first end cap, a second end cap, and a composite filter media structure. The composite filter media structure includes a base substrate that includes a nonwoven synthetic fabric formed from a plurality of bico... | 05/17/2011 |
| 7918913 | Reduced solidity web comprising fiber and fiber spacer or separation means A web can comprise a substantially continuous fiber mass and a separation means dispersed into the fiber. The web having a preferred thickness resulting from forming a polymer material and a particulate into a fine fiber layer can have a variety of end uses. A filtr... | 04/05/2011 |
| 7896941 | Product and method of forming a gradient density fibrous filter A filter media product and method of making the same wherein at least two filter media thicknesses of differing average coarse and fine fiber sizes are held in intertangled relationship forming a gradient density fibrous filter media with the fiber sizes having an o... | 03/01/2011 |
| 7896940 | Self-supporting pleated filter media The present invention is a filter that includes a length of filter media and a continuous, substantially nonlinear adhesive strand. The filter media has a front face and a rear face. The filter media has a plurality of pleats defined by a plurality of fold lines, ea... | 03/01/2011 |
| 7758665 | 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 be made very thin while retaining high efficiency in removing small ... | 07/20/2010 |
| 7717975 | Reduced solidity web comprising fiber and fiber spacer or separation means A web can comprise a substantially continuous fiber mass and a separation means dispersed into the fiber. The web having a preferred thickness resulting from forming a polymer material and a particulate into a fine fiber layer can have a variety of end uses. A filtr... | 05/18/2010 |
| 7674306 | Multilayered long life filter using convoluted foam A filtration device is disclosed, wherein filtering layers are formed from foam and include convolutions formed in at least one surface thereof. ... | 03/09/2010 |
| 7632328 | Filter apparatus for filtering the air for an internal combustion engine A filter device for filtering air in internal combustion engines equipped with a filter that can be inserted into a filter housing and has a flame-retardant effect. The filter comprises a main filter element and an upstream filter fleece whereby the flame-retardant ... | 12/15/2009 |
| 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 having an upstream side and a downstream side relative to the directi... | 03/10/2009 |
| 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 collecting section by driving the electric air blower, and a disposa... | 09/23/2008 |
| 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 temperature adjuster for adjusting the temperature of the gas to a predeter... | 08/26/2008 |
| 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 facilitates rapid drainage of liquid collected by the fiber bed. A pre-filte... | 08/26/2008 |
| 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 may include in-line sensors for in-situ monitoring of contamination. Gr... | 08/19/2008 |
| 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 being either a planar filter, pocket filter, or multiple pocket filter.... | 08/19/2008 |
| 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 reduce the production cost. The filter element and the method for produc... | 07/15/2008 |
| 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, and also forming an air cleaner seal for the filter element. The over... | 07/08/2008 |
| 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 flow from the space through the wall in order to be filtered. The wall c... | 06/24/2008 |
| 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 be made very thin while retaining high efficiency in removing small ... | 06/17/2008 |
| 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 provide stability. The air filtration system draws air into the housi... | 06/17/2008 |
| 7370766 | Filter cloth and replaceable filter module A filter cloth whose underside comprises substantially parallel, additional yarns 8 that are thicker than the rest of the yarns of the cloth, substantially parallel channels 9 being formed between the yarns, wherein filtered liquid passed through the c... | 05/13/2008 |
| 7361300 | Method of making extended area filter Methods are provided for making a porous filter that is useful in polymer melt spinning. The methods include pressing particles, such as a metal powder, to form a filter having a filter body integrally formed with a top cap and a bottom cap. The filter body and caps... | 04/22/2008 |
| 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 includes a filter assembly. The filter assembly includes a filter hou... | 04/15/2008 |
| 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 chamber having an ambient air inlet port, one prefilter and a blower for... | 04/08/2008 |
| 7344581 | Filter assembly A filter assembly for removing material that is entrained in a gas stream. The filter assembly comprises a filter element comprising a wall of a filtration medium which defines a hollow space, for a gas stream to flow from the space through the wall to be filtered. ... | 03/18/2008 |
| 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 in the head part for a gas stream to flow into the housing, the head ... | 03/18/2008 |
