Patents by Inventor Uwe Felber
Uwe Felber has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9855825Abstract: The use of a filter element with a body which has material which is suitable for adsorption of gases and vapors, the body being in the form of a honeycomb body, is, with regard to the object of supplying a substantially closed chamber with filtered inlet air in trouble-free fashion, the inlet air being virtually completely freed from pollutants which are present in the form of aerosols, gases, liquid droplets or solid particles, and a filter element of simple construction being used, wherein the filter element is used for supplying filtered inlet air to an at least partially closed-off chamber, the inlet air being freed from pollutants which are present in the form of aerosols, gases, liquid droplets or solid particles.Type: GrantFiled: May 19, 2015Date of Patent: January 2, 2018Assignee: CARL FREUDENBERG KGInventors: Uwe Felber, Thomas Stoesser, Ulrich Stahl, Thomas Wolff
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Publication number: 20150328962Abstract: The use of a filter element with a body which has material which is suitable for adsorption of gases and vapors, the body being in the form of a honeycomb body, is, with regard to the object of supplying a substantially closed chamber with filtered inlet air in trouble-free fashion, the inlet air being virtually completely freed from pollutants which are present in the form of aerosols, gases, liquid droplets or solid particles, and a filter element of simple construction being used, wherein the filter element is used for supplying filtered inlet air to an at least partially closed-off chamber, the inlet air being freed from pollutants which are present in the form of aerosols, gases, liquid droplets or solid particles.Type: ApplicationFiled: May 19, 2015Publication date: November 19, 2015Inventors: Uwe Felber, Thomas Stoesser, Ulrich Stahl, Thomas Wolff
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Patent number: 8858668Abstract: A filter element includes a holding frame with an intake opening, an air intake disposed on the intake opening, and an anti-twist mechanism configured such that the filter element is only insertable into a filter housing in one position. The anti-twist mechanism includes a body with two asymmetrically configured recesses extending along a longitudinal axis of the holding frame. The filter element also includes two bellows disposed on the holding frame, the bellows and holding frame delimiting a cavity.Type: GrantFiled: January 9, 2012Date of Patent: October 14, 2014Assignee: Carl Freudenberg KGInventors: Uwe Felber, Ulrich Stahl, Claudio Marin
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Patent number: 8858670Abstract: A filter arrangement for filtering the supply air of an engine, comprising a filter element with a folded filter medium, whereby the folded filter medium comprises longitudinal folds with fold walls and fold troughs, and a filter housing for receiving the filter element, whereby the filter housing comprises an upper part and a bottom part. A first insertion tongue is arranged on the upper part and a second insertion tongue is arranged on the bottom part, whereby at least one insertion tongue engages in a fold trough and whereby the insertion tongues press a fold wall between themselves is characterized in that, in regard to the problem of improving the sealing concept of the prior art and of preventing the passage of dust from the raw air side to the clean air side with a high degree of reliability, the filter element comprises side strips manufactured from a compressible material that can be compressed to at least 80% of its thickness in the unloaded state.Type: GrantFiled: December 10, 2013Date of Patent: October 14, 2014Assignee: Carl Freudenberg KGInventors: Ulrich Stahl, Uwe Felber, Marcel Beisel
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Publication number: 20140157740Abstract: A filter arrangement for filtering the supply air of an engine, comprising a filter element with a folded filter medium, whereby the folded filter medium comprises longitudinal folds with fold walls and fold troughs, and a filter housing for receiving the filter element, whereby the filter housing comprises an upper part and a bottom part. A first insertion tongue is arranged on the upper part and a second insertion tongue is arranged on the bottom part, whereby at least one insertion tongue engages in a fold trough and whereby the insertion tongues press a fold wall between themselves is characterized in that, in regard to the problem of improving the sealing concept of the prior art and of preventing the passage of dust from the raw air side to the clean air side with a high degree of reliability, the filter element comprises side strips manufactured from a compressible material that can be compressed to at least 80% of its thickness in the unloaded state.Type: ApplicationFiled: December 10, 2013Publication date: June 12, 2014Applicant: CARL FREUDENBERG KGInventors: Ulrich STAHL, Uwe FELBER, Marcel BEISEL
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Publication number: 20140065498Abstract: A filter module (1) for cleaning a fluid, including a housing (2) with an inlet opening (3) and an outlet opening (4), wherein the housing (2) forms an accommodation space (5) in which at least one filter element (6) is accommodated, wherein the filter element (6) exhibits a filter medium (7) which is configured like a block in view of the problem of configuring a filter model such that the dead space in the housing is as small as possible, that the filter module has good filter performance and a cost-effective as well as time-saving fabrication and offers effective use of a filter medium, characterized in that the filter medium (7) is pleated and is telescoped into a block (8).Type: ApplicationFiled: August 20, 2013Publication date: March 6, 2014Applicant: CARL FREUDENBERG KGInventors: Thomas FISCHER, Hannes CLASEN, Uwe FELBER, Klaus LEISTER
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Patent number: 8597392Abstract: A filter arrangement for filtering intake air of a vehicle engine includes a filter element including a folded filter medium having a plurality of lengthwise folds, each fold having a fold wall and a fold valley so as to form a plurality of fold walls and fold valleys. the arrangement further includes a filter housing accommodating the filter element and having a top and a bottom part, a first insertable lamella disposed on the top part, and a second insertable lamella disposed on the bottom part and extending into a first one of the plurality of fold valleys, wherein the first insertable lamella extends into an adjacent one of the plurality of fold valleys so as to compress the fold wall disposed between the first fold valley and the adjacent fold valley.Type: GrantFiled: December 1, 2010Date of Patent: December 3, 2013Assignee: Carl Freudenberg KGInventors: Ulrich Stahl, Uwe Felber, Claudio Marin
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Patent number: 8333817Abstract: A filter arrangement for filtering a fluid or gaseous medium, in particular in a motor vehicle, comprising a housing which holds a filter element in a receiving space, wherein the filter element has an edge region which bears at least in regions against the inner wall of the housing, is characterized, with regard to the problem of creating a filter arrangement which is of structurally simple design and has a high filter efficiency, in that the housing is shaped such that the receiving space tapers at least in regions in at least one spatial direction.Type: GrantFiled: April 28, 2008Date of Patent: December 18, 2012Assignee: Carl Freudenberg KGInventors: Uwe Felber, Ulrich Stahl
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Publication number: 20120174788Abstract: A filter element includes a holding frame with an intake opening, an air intake disposed on the intake opening, and an anti-twist mechanism configured such that the filter element is only insertable into a filter housing in one position. The anti-twist mechanism includes a body with two asymmetrically configured recesses extending along a longitudinal axis of the holding frame. The filter element also includes two bellows disposed on the holding frame, the bellows and holding frame delimiting a cavity.Type: ApplicationFiled: January 9, 2012Publication date: July 12, 2012Applicant: Carl Freudenberg KGInventors: Uwe Felber, Ulrich Stahl, Claudio Marin
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Patent number: 8157883Abstract: A filter element, comprising a first component, a second component, and a filter medium, which is situated between the components, the components being spaced apart by the filter medium, the components and the filter medium delimiting a permeable volume, and the filter medium implementing a wall surface, through which a fluid may pass for filtering, is characterized in regard to the object of designing and refining a filter element in such a way that it may be used in tight installation spaces in that the components are oriented inclined to one another or have surfaces inclined to one another.Type: GrantFiled: June 9, 2009Date of Patent: April 17, 2012Assignee: Carl Freudenberg KGInventors: Uwe Felber, Ulrich Stahl, Claudio Marin, Christian Arns
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Publication number: 20110131938Abstract: A filter arrangement for filtering intake air of a vehicle engine includes a filter element including a folded filter medium having a plurality of lengthwise folds, each fold having a fold wall and a fold valley so as to form a plurality of fold walls and fold valleys. the arrangement further includes a filter housing accommodating the filter element and having a top and a bottom part, a first insertable lamella disposed on the top part, and a second insertable lamella disposed on the bottom part and extending into a first one of the plurality of fold valleys, wherein the first insertable lamella extends into an adjacent one of the plurality of fold valleys so as to compress the fold wall disposed between the first fold valley and the adjacent fold valley.Type: ApplicationFiled: December 1, 2010Publication date: June 9, 2011Applicant: CARL FREUDENBERG KGInventors: Ulrich Stahl, Uwe Felber, Claudio Marin
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Publication number: 20110061352Abstract: A filter arrangement for filtering an air supply to a motor vehicle engine includes a filter element having a pleated filter medium, the pleated filter medium having an end face and a longitudinal side face, at least one of the end face and the longitudinal side face having a flap with a free end projecting from the respective face; and a filter housing receiving the filter element and having a housing wall, wherein the flap is configured to be placed tight against the housing wall.Type: ApplicationFiled: September 15, 2010Publication date: March 17, 2011Applicant: CARL FREUDENBERG KGInventors: Ulrich STAHL, Uwe FELBER, Claudio MARIN
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Publication number: 20100199620Abstract: A filter arrangement for filtering a fluid or gaseous medium, in particular in a motor vehicle, comprising a housing (1) which holds a filter element (3) in a receiving space (2), wherein the filter element (3) has an edge region (4) which bears at least in regions against the inner wall (5) of the housing (1), is characterized, with regard to the problem of creating a filter arrangement which is of structurally simple design and has a high filter efficiency, in that the housing (1) is shaped such that the receiving space (2) tapers at least in regions in at least one spatial direction.Type: ApplicationFiled: April 28, 2008Publication date: August 12, 2010Applicant: CARL FREUDENBERG KGInventors: Uwe Felber, Ulrich Stahl
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Publication number: 20090313960Abstract: A filter element, comprising a first component, a second component, and a filter medium, which is situated between the components, the components being spaced apart by the filter medium, the components and the filter medium delimiting a permeable volume, and the filter medium implementing a wall surface, through which a fluid may pass for filtering, is characterized in regard to the object of designing and refining a filter element in such a way that it may be used in tight installation spaces in that the components are oriented inclined to one another or have surfaces inclined to one another.Type: ApplicationFiled: June 9, 2009Publication date: December 24, 2009Applicants: CARL FREUDENBERG KG, MONTAPLAST GMBHInventors: Uwe Felber, Ulrich Stahl, Claudio Marin, Christian Arns
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Publication number: 20090301046Abstract: A filter element for use as an engine intake air filter, comprising a frame and a filter medium, wherein the frame at least partially surrounds the filter medium and wherein the frame comprises a sealing means that protrudes from the filter medium, is, with respect to the object of providing a filter element that exhibits a very high separation efficiency and is economically produced, characterized in that the frame is designed as a two-component part that comprises the sealing means and a seat for the filter medium.Type: ApplicationFiled: June 8, 2009Publication date: December 10, 2009Applicant: CARL FREUDENBERG KGInventors: Uwe FELBER, Ulrich STAHL, Claudio MARIN
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Patent number: 7569087Abstract: A filter element comprises a filter medium (1) with an inflow and an outflow side wherein at least one channel (2) which is variable in its dimensions is associated to the filter medium (1). An arrangement comprises a filter element and a flow channel, wherein the flow channel can be at least partially closed and opened by means of the filter element. Such a filter element and such an arrangement solve the objective to realize a filter system which ensures an engine-friendly operation mode and a long service life of the filter element.Type: GrantFiled: December 6, 2006Date of Patent: August 4, 2009Assignee: Carl Freudenberg KGInventors: Ulrich Stahl, Uwe Felber
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Patent number: 7540897Abstract: 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 (4) being made of essentially the same filter material which forms the filter folds, and having an edge area (5) projecting outward on both sides, and in which the two edge areas (5) are inserted into the housing (1) having insert struts (7), on the sides assigned to the end folds of he plate-shaped filter element (2), which engage the end folds (8) and ensure a leakage air rate of 0 to 4 m3/h at a differential pressure of at least 200 Pa.Type: GrantFiled: September 26, 2005Date of Patent: June 2, 2009Assignee: Carl Freudenberg KGInventors: Ulrich Stahl, Joern-Uwe Krueger, Uwe Felber
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Publication number: 20080110145Abstract: With respect to the object of providing a filter element with a sufficiently high filtration capacity and easy deformability, a filter element, comprising a first component (1), a second component (2) and a pleated filter medium (3) interposed between the components (1, 2), the components (1, 2) being disposed at a distance due to the filter medium (3), is characterized in that the filter element (3) is made of a non-woven fabric and pleated such that a distance between the components (1, 2) can be reversibly reduced, at least in some regions, when a force is applied.Type: ApplicationFiled: June 13, 2007Publication date: May 15, 2008Applicants: CARL FREUDENBERG KG, MONTAPLAST GMBHInventors: Bernhard BEER, Jorn-Uwe KRUGER, Rolf Daniel MERZ, Werner GERHARD, Ulrich STAHL, Uwe FELBER
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Publication number: 20080016829Abstract: A filter element comprises a filter medium (1) with an inflow and an outflow side wherein at least one channel (2) which is variable in its dimensions is associated to the filter medium (1). An arrangement comprises a filter element and a flow channel, wherein the flow channel can be at least partially closed and opened by means of the filter element. Such a filter element and such an arrangement solve the objective to realize a filter system which ensures an engine-friendly operation mode and a long service life of the filter element.Type: ApplicationFiled: December 6, 2006Publication date: January 24, 2008Applicant: CARL FREUDENBERG KGInventors: Ulrich STAHL, Uwe FELBER
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Publication number: 20060236664Abstract: A filter system including a first filter designed as a folded filter having fold peaks and fold valleys, having an air intake side and an air outlet side, and a second filter, which is situated on the air intake side of the first filter, the first filter and the second filter being bonded together using at least one weld.Type: ApplicationFiled: April 26, 2006Publication date: October 26, 2006Applicant: Carl Freudenberg KGInventors: Ulrich Stahl, Uwe Felber