Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 8157881 | Collapsible extended surface filter and air cleaner system using collapsible extended surface filter An air cleaner comprises an enclosing structure having support members spaced a distance from top and bottom walls. A collapsible extended surface pleated media filter has end members and a pleated mechanical media filter. The end members have an outer surface and a... | 04/17/2012 |
| 8137427 | Filter element with pleat support combs A filter element includes support grid secured about its periphery edges to a periphery frame member. A pleated filter media is secured to the frame member and is sized and positioned to fully cover the filter fluid aperture. The support grid is positioned such that... | 03/20/2012 |
| 8075658 | Filter element A filter element has a zigzag-shaped fold pack of folds. At least one terminal element is folded parallel to the folds of the fold pack. The at least one terminal element has a first leg, a second leg, and a third leg. The first leg is arranged substantially perpend... | 12/13/2011 |
| 8062404 | Filter insert A filter insert insertable seal-tightly into a filter housing has a filter element having end faces. At least one of the end faces of the filter element is engaged by a reinforcement clamp provided with a sealing element. The reinforcement clamp and the sealing elem... | 11/22/2011 |
| 8029589 | Laser welding method and filter element produced by it A method is provided for connecting a filter medium to a connection element, wherein the filter medium and the connection element are brought into contact with each other and connected to each other by exposure to laser radiation. The connection element may be welde... | 10/04/2011 |
| 7959700 | Filter orientation ribs The present invention provides an orientation device for enforcing correct orientation of a pleated filter element during installation into a filter support frame or filter housing, for example an automotive air cleaner. The orientation device includes at least one ... | 06/14/2011 |
| 7758666 | Filter element A filter element and related method for separating particles from a particle laden unfiltered gas flow and a method for manufacturing such a filter element, wherein the filter element includes a first filter wall having a plurality of first through-flow openings for... | 07/20/2010 |
| 7753981 | Filter unit and filter unit panel The present invention provides filter units that, when joined together, allow joining portions thereof to be fixed together satisfactorily and can prevent air from leaking at the joining portions. A filter unit includes a filter medium that has been pleated and a fr... | 07/13/2010 |
| 7727299 | Extended surface pleat air filter A high efficiency air filter for use in a standard return air grille is provided. Standard return air grilles possess filter receptacles for accepting air filters, a closeable cover with a cover flange for engaging air filters and a duct interface that leads away fr... | 06/01/2010 |
| 7674307 | Self supported fluid filter A self supported cylindrical corrugated filter. The corrugations of the filter define a first and second end. Two arcuate side walls join the first and second end. The filter has a substantially planar front surface and a substantially planar rear surface. The front... | 03/09/2010 |
| 7615091 | Filter element, air cleaner, and methods A filter arrangement includes a filter element, a frame construction secured to the filter element, and a handle member secured to the filter element. In preferred embodiments, the handle member is secured to the frame construction. Preferably, the filter element in... | 11/10/2009 |
| 7540897 | System for a plate-shaped filter element in a gas filter housing A system is disclosed for a plate-shaped filter element (2) in a gas filter housing (1). The filter element (2) has filter material (3), which is folded in a zigzag shape, having filter folds closed at the front edges, and the closure ( | 06/02/2009 |
| 7442221 | Filter element A filter element, particularly a secondary element for a filter system in the intake tract of an internal combustion engine, which filter element includes a zig-zag pleated filter medium surrounded by a circumferential frame of polyurethane foam. The frame has a sub... | 10/28/2008 |
| 7435278 | Deep filter element suitable for replacing a shallow filter element and having a support frame made from thin stock A deep format filter element has a peripheral frame with outwardly protruding mounting flanges. The mounting flanges simulate the periphery of a shallow format filter element to allow the deep format filter element to replace the shallow format filter element in man... | 10/14/2008 |
| 7425226 | Fluid filter with canted fanfold pleats Fanfold filter element has filtering media pleats canted at a predetermined angle relative to a reference plane such that the depth of each pleat is greater than the depth of a mounting frame to increase effective filtering area. The frame is canted by a correspondi... | 09/16/2008 |
| 7425227 | Pleated filter element with offset emboss pattern A pleated fluid filter element for removing particulate matter from a fluid stream that comprises a pleated filter media provided with a plurality of pleats having peaks and valleys and having a clean and dirty side. The pleated filter media further has arrays of el... | 09/16/2008 |
| RE40481 | Air filtration device for internal combustion engine Filtration method and device for filtering solid contaminants from a stream of a flowing fluid such as internal combustion engine intake air. An imperforate housing has a tubular inlet exiting at its downstream end into a conically divergent first wall section termi... | 09/09/2008 |
| 7419526 | Conformal filter cartridges and methods Conformal filter cartridges, filtering apparatus using the conformal filter cartridges, and methods of manufacturing the conformal filter cartridges are disclosed. The conformal filter cartridges may include a bed of filter material between a pair of support plates,... | 09/02/2008 |
| 7410520 | Foldable filter for an air filtration unit and method A method for packaging, shipping, displaying and positioning a foldable filter having a hinge into an air filtration unit wherein the foldable filter is pivotable about the hinge between a collapsed position and an expanded position. The method includes the steps of... | 08/12/2008 |
| 7377954 | Performance air filtration cartridge An air filtration cartridge has annular filter media having a hollow interior and extending axially between first and second distally opposite end caps. The first end cap is an outlet end cap having flow straightening structure integrally formed therewith and spanni... | 05/27/2008 |
| 7377963 | Adsorption filter and manufacturing method thereof An adsorption filter includes at least one thin plate honeycomb filtering medium carrying a gas-adsorbing medium thereon and a filter case housing the honeycomb filtering medium therein. The thin plate honeycomb filtering medium is disposed in the filter case in suc... | 05/27/2008 |
| 7364602 | Air cleaner assembly An air cleaner assembly for use with a conventional household air conditioning system with a duct having an opening sized to receive a standard panel filter comprises a peripheral frame sized to be received within the opening in the return duct and sized to receive ... | 04/29/2008 |
| 7364607 | Wrought fiber sheet and filter unit A wrought fiber sheet or air cleaning filter unit that exhibits high performance and is biodegradable so as to enable reducing load upon environment. The wrought fiber sheet is produced by coupling biodegradable fiber sheets having electret properties by means of a ... | 04/29/2008 |
| 7360530 | Air cleaner A housing 11 accommodates a pleated filter element 14. A fuel adsorbent member 16 is arranged in the housing 11 at a position downstream from the filter element 14. The fuel adsorbent member 16 adsorbs evaporative fuel leaki... | 04/22/2008 |
| 7354470 | Multiple retainer bridge A multiple retainer bridge device is provided for securing a utility member (e.g., a magnet or bracket) to posts on a housing member (e.g., a filter housing). When assembled, the utility member is staked onto the posts. A single retainer member prevents the utility ... | 04/08/2008 |
| 7347883 | High flow air filtration system for ford truck An apparatus for filtering air includes a filter housing and a battery tray integral with the filter housing. The battery tray may be coupled to the filter housing via a ramp. The filter housing may comprise a first wall, a second wall, and a third wall, wherein the... | 03/25/2008 |
| 7344577 | Filter frame for bag house filter, and method A filter tube frame for use with a filter bag house. The filter tube frame includes an end cap having a pivotable handle attached thereto to facilitate removal of the tube frame from the bag house. The handle includes a lever surface adapted to engage a tube sheet s... | 03/18/2008 |
| 7341613 | Filter elements having injection molded thermoplastic seals and methods of making same Seals for filter elements having filter packs with seals around the periphery thereof adjacent to one of the faces are produced by injection molding the seal onto the filter pack using an ethylene-propyleneterpolymer (EPDM) thermoplastic material. Preferably, the th... | 03/11/2008 |
| 7332011 | Equipment air filter assembly A filter assembly for a structure having an air intake, the filter assembly including a filter media that is sized and shaped to cover the air intake. The ends of the filter media are connected by an elastic fastener, such that the filter media and the fastener enci... | 02/19/2008 |
| 7323105 | High capacity direct flow filter with maintained channel width A direct flow filter includes a pleated filter element filtering fluid flowing axially therethrough parallel to the wall segment pleat tip bend lines. Embossments on the wall segments have a height extending along a lateral direction into a respective flow channel t... | 01/29/2008 |
| 7320524 | Projector and air filtration device thereof An air filtration device for projector includes a holder, a filter, and a rack. The rack is movably disposed in the holder for supporting the filter. When the rack moves to a first position, the rack is received within the holder. When the rack moves from the first ... | 01/22/2008 |
| 7316736 | Carbon filter panel for an air cleaner A carbon filter panel for an air cleaner is provided according to an embodiment of the invention. The carbon filter panel includes a frame including one or more side members and a frame interior space and a plurality of spaced-apart carbon elements extending across ... | 01/08/2008 |
| 7309369 | Filter module The invention relates to a filter module in the form of a hollow body with at least one chamber. The walls of the hollow body are made of a non-metallic material that can be comminuted and/or disintegrated in a recycling process. The material is a paper product, suc... | 12/18/2007 |
| 7303605 | Snap together filter A fluid filter is provided with a snap-together housing for the filter media. The housing is designed with two main parts that are easily snapped together to encapsulate the filter media. The filter housing is substantially cylindrical, and contains an inlet on one ... | 12/04/2007 |
| 7303604 | Filter arrangement; sealing system; and methods A filter pack includes a filter construction and a sealing system for sealing the construction within a duct or housing. The filter construction has first and second opposite flow faces and is configured for a straight-through flow. The sealing system includes a fra... | 12/04/2007 |
| 7300486 | Filter elements having injection molded thermoplastic seals and methods of making same Seals for filter elements having filter packs with seals around the periphery thereof adjacent to one of the faces are produced by injection molding the seal onto the filter pack using a cell-less thermoplastic material. Preferably, the thermoplastic material is com... | 11/27/2007 |
| 7294162 | Exhaust filter An exhaust filter having a pleated filter media mounted between end caps is disclosed herein. The filter has a construction suitable for high temperature environments such as engine exhaust systems. ... | 11/13/2007 |
| 7294160 | Air cleaner The present invention comprises concerns a novel air cleaner having an inner mesh barrier. This inner mesh barrier has a plurality of openings, and is generally cylindrical, having an inner mesh barrier liner surface, and an inner mesh barrier outer surface. Further... | 11/13/2007 |
| 7291197 | Particulate trap filter element A filter element has a filter media and at least one base member. The filter element further has a ceramic paste connecting the filter media to the at least one base member. ... | 11/06/2007 |
| 7288130 | Cassette filter A cassette filter comprising a frame and a pleated filter material that is inserted therein, in addition to a protective grid having passage holes. The protective grid is fastened at a distance from the filter material in the frame and has a flow resistance that is ... | 10/30/2007 |
