| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 055492000 | Internal frame or support means | 27 |
| 20080264020 | 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 overmold preferably comprises molded, foamed, polyurethane. A variety of media pack shapes can be used. | 10-30-2008 |
| 20090158697 | AIR FILTER - Amongst other things, there is provided an air filter that is for use in a duct having one or more walls. The air filter comprises a peripheral frame that includes a substantially resilient and compressible casing, and a substantially rigid internal skeleton within the casing. The air filter also comprises a filter element attached about its entire perimeter in sealed relation to the casing of the peripheral frame. The filter element is adapted to remove contaminants from air passing through the duct. When the air filter is in use, it is positioned in the duct such that the casing of the peripheral frame is compressed against the walls of the duct in substantially air-sealed relation therewith. | 06-25-2009 |
| 20090199525 | FRAME FOR FILTER PACK - A filter pack includes filter media formed into a filter structure having a front, a back and at least one side surface; and a frame adhered to the at least one side surface and comprising an adhesive and an adhesive carrier. The adhesive carrier can be a sheet of material which can be impregnated with the adhesive, one example being a sheet of the filter material itself. The adhesive carrier can alternatively be a single use tray mold for holding the adhesive while it cures, and which is left into the final product. | 08-13-2009 |
| 20090249755 | AIR FILTER - An apparatus and method for filtering air in residential and commercial applications is described herein. The air filter may have a support frame which secures to the intake grille of an HVAC system. A filter media may be placed in the support frame to filter air as it passes through the air filter. The filter media may be replaced when the filter media becomes too dirty to effectively filter air. The dirty filter media may be removed from the frame and a new clean media may be replaced in the frame. | 10-08-2009 |
| 20100071324 | Grease Removal Apparatus, Systems and Methods - A filter assembly includes a filter pad comprising fibers including natural, synthetic and/or hybrid fibers. A stabilizer frame formed of a non-metallic material may be imbedded in the filter pad. The stabilizer frame may be configured to provide support to the filter pad to maintain the filter pad in a generally flat configuration. In accordance with a particular embodiment, the filter pad may be comprised of at least first and second fibrous mats that are coupled together. In this embodiment, the stabilizer frame may be disposed between and coupled with the first and second fibrous mats. | 03-25-2010 |
| 20100229515 | Peaky filter - A peaky filter comprises a covering and a corresponding base, a supporting frame connected between the covering and the base, and a multifold filter covering the exterior of the supporting frame. The supporting frame includes plural transversely spaced first supports and plural connectors. Each support has a supporting rod and a plurality of longitudinally spaced supporting members connected to the supporting rod. Each supporting member has a first supporting leg and a second supporting leg extending radially and outwardly from the supporting rod. Each connector has a first connecting part and a second connecting part, which are used for respectively connecting one end of the first supporting leg of one support and one end of the second supporting leg of another adjacent support to connect elastically the plurality of transversely spaced supports, and consequently alter the size of the supporting frame and the filtering area of the filter. | 09-16-2010 |
| 20110000174 | RING FILTER ELEMENT - The present invention relates to a ring filter element ( | 01-06-2011 |
| 20110067370 | FILTER - A filter element is longitudinally formed in a frusto-conical shape The filter element has a plurality of radially extending members that form a propeller shaped cross-section, and a propeller-shaped moulded bottom that enhances dust fall from the exterior. A frusto-conically-shaped inner cage facilitates the shape of the filter element. | 03-24-2011 |
| 20110203240 | FILTER ELEMENT AND FILTER DEVICE - A filter element may include an annular filter body and an internal support frame. The filter body may be supported radially on the inside of the internal support frame. At least one end disk may be disposed at the filter body and the internal support frame. The end disk may have a central disk opening and a radial seal arranged coaxially to the disk opening. The internal support frame may have a plurality of radial centering elements distributed in the circumferential direction. The frame may be projected inwardly and extends to a radial end on the inside at an inner wall of the end disk. The inner wall may enclose the disk opening. | 08-25-2011 |
| 20120216497 | Air Filter Unit having a Radially Divided Housing - In a filter element ( | 08-30-2012 |
| 20120266578 | Filter Element for Filtering Fluids - A filter element for filtering fluids has a support tube having a circumferential wall provided with passages for a fluid. A hollow elongate filter medium is arranged axially on the support tube. The passages are adapted in regard to size; distribution; or size and distribution to a fluidic configuration of the filter element such that non-uniform fluid flows that exist in operation of the filter element upstream of the support tube are compensated. The filter element is used in particular in air filters for internal combustion engines. | 10-25-2012 |
| 20120317943 | Filter element and housing for a filter element - A filter element ( | 12-20-2012 |
| 20120324849 | Filter Element for Fluid Filtration, in Particular for Intake Air of Internal Combustion Engines - A filter element ( | 12-27-2012 |
| 20130167494 | Filter and Method of the Same - the present invention is characterized in that a filter made of resin comprises a through-hole film portion ( | 07-04-2013 |
| 20140157739 | Grease Removal Apparatus, Systems and Methods - A filter assembly includes a filter pad comprising fibers including natural, synthetic and/or hybrid fibers. A stabilizer frame formed of a non-metallic material may be imbedded in the filter pad. The stabilizer frame may be configured to provide support to the filter pad to maintain the filter pad in a generally flat configuration. In accordance with a particular embodiment, the filter pad may be comprised of at least first and second fibrous mats that are coupled together. In this embodiment, the stabilizer frame may be disposed between and coupled with the first and second fibrous mats. | 06-12-2014 |
| 20140245708 | AIR FILTER ASSEMBLY - An air filter assembly having a primary filter element, a secondary filter element, and a housing with an outlet tube is disclosed. The primary filter element is operably installed within the housing and has an interior volume. The secondary filter element is operably installed within the primary filter element interior volume and has an interior volume defined by a first wall extending between a closed end cap and an opposite open end cap. The open end cap of the secondary filter element defines a sealing structure having a first portion extending into the secondary filter interior volume. The outlet tube is operably connected to the housing air outlet opening and includes an inset collar being at least partially disposed within the secondary filter interior volume and extending over at least a part of the sealing structure first portion. | 09-04-2014 |
| 20140260140 | PAINT BOOTH FILTER - The invention is a filter for paint booth filtration systems. The filter has a housing made up of a peripheral wall, which extends around the entire periphery of the filter, and opposing filter-retaining screens. The filter-retaining screens form the upstream and downstream faces of the filter. The filtration element may be a frame with lattice and a rigidifying channel therearound combined with a filtration material extended around the frame. The filtration material may be slit and expanded paper that is joined at overlapping edges, or merely overlapped, to form a sleeve. One or more of the filtration elements are mounted in the housing substantially parallel to one another and to the screens. | 09-18-2014 |
| 20140352271 | CRANKCASE VENTILATION FILTER ASSEMBLY; COMPONENTS; AND METHODS - Crankcase ventilation filter arrangements and components therefore are described. Example arrangements are described. In one, a serviceable filter cartridge includes a check valve therein, for protection during vehicle rollover. Handle arrangements are also described. Methods of use are described. | 12-04-2014 |
| 20150027092 | Support Tube for a Filter Element - A filter element has a support grid structure with a first axial end and a second axial end. A filter medium surrounds annularly the support grid. The support grid has structural web members that are connected and form a hollow-cylindrical grid structure that surrounds a cylindrical interior. At least three of the structural web members or structural web sections connect to each other to define a through opening. A fluid flow is enabled in radial direction relative to a center axis of the hollow-cylindrical grid structure through the through openings. A first average opening cross-section of the through openings in a first region adjacent to a first axial end is greater than a second average opening cross-section of the through openings in a second region adjacent to the second axial end. | 01-29-2015 |
| 20150121822 | FILTER CAGE AND FILTER ASSEMBLY FOR BAGHOUSE FILTER - Disclosed herein is a filter assembly ( | 05-07-2015 |
| 20160123282 | HOLLOW FILTER ELEMENT, FILTER HOUSING AND FILTER - A hollow filter element, including: a filter medium ( | 05-05-2016 |
| 20160136559 | GREASE REMOVAL APPARATUS, SYSTEMS AND METHODS - A filter assembly includes a filter pad comprising fibers including natural, synthetic and/or hybrid fibers. A stabilizer frame formed of a non-metallic material may be imbedded in the filter pad. The stabilizer frame may be configured to provide support to the filter pad to maintain the filter pad in a generally flat configuration. In accordance with a particular embodiment, the filter pad may be comprised of at least first and second fibrous mats that are coupled together. In this embodiment, the stabilizer frame may be disposed between and coupled with the first and second fibrous mats. | 05-19-2016 |
| 20160138445 | OIL-SEPARATING DEVICE, IN PARTICULAR FOR A CRANKCASE VENTILATION SYSTEM OF AN INTERNAL COMBUSTION ENGINE - An oil-separating device for crankcase ventilation of an internal combustion engine may include a hollow member that extends axially in a longitudinal axis and through which a gas flow charged with oil can flow. The gas flow may flow against an oil separation ring disposed within or formed in the hollow member. The hollow member may contain a substantially rotationally symmetrical flow guiding member that has a flow projection located in the longitudinal axis and that has a flow contour that radially increases in a downstream direction so that gas can flow around the flow guiding member and so that the gas flow between the flow contour and the inner side of the hollow member can strike the oil separation ring in an accelerated manner. | 05-19-2016 |
| 20160158682 | Filter Element, In Particular for Gas Filtration - A filter element has a curved filter medium body, which at least partially encloses a flow chamber, and a carrier connector that is guided through the filter medium body. The carrier connector is a carrier of a sealing element for sealing the contact with a flow channel, wherein a section of the sealing element is arranged between the carrier connector and the filter medium body. | 06-09-2016 |
| 20160158685 | HEAT SEALED RECYCLABLE FILTER - A rigid support is disposed in a filtration media element. A first gas-permeable filtration media layer is disposed in an overlapping orientation with a second gas-permeable filtration media layer. The first and second layers define a void in which the support is disposed. The first layer is attached to the second layer near opposing edges of the first and second layers and at an attachment termination point substantially centrally located on the filtration media element. The filtration media element has a first media end and an opposite, second media end. The support has a first support portion that extends from the first media end toward the attachment termination point. The support has second and third support portions that extend from the first support portion toward the second media end with a gap between the second and third support portions in which the attachment termination point is disposed. | 06-09-2016 |
| 20160376951 | Filter Assemblies; Components; and, Methods - Filter arrangements and components therefore are described. Example arrangements are described. In one, a serviceable filter cartridge includes upper and lower end pieces, each having a seal thereon; the upper having a rigid protection thereon, the lower having a non-circular outer perimeter. | 12-29-2016 |
| 20160378057 | FILTER FRAME AND FILTER ASSEMBLY - A frame for sandwiching and holding a filter includes a first frame portion, a second frame portion, a plurality of first tapered projections, and a plurality of second tapered projections. At least the first tapered projections are disposed so as to be sandwiched by the second tapered projections with respect to an arrangement direction. Shapes, in a section in a plane perpendicular to the arrangement direction of at least one of the first tapered projections and the second tapered projections, of the at least one of the first tapered projections and the second tapered projections have first sides substantially perpendicular to a bottom thereof and second sides inclined with respect to the bottom. | 12-29-2016 |
