Patents by Inventor Edwin Koch
Edwin Koch 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: 11305216Abstract: A filter device for transmission oil has a filter element (24) insertable into a transmission oil pan (70) with a filter medium (32) separating an unfiltered side from a filtrate chamber connected to an outlet (38, 50, 72), to which a suction oil pump can be connected. The filter medium (32) has a first structural layer (46) having a predetermined surface area and predeterminable filter properties and has a second structural layer (44, 60) having predeterminable filter properties. The surface area of the second structural layer (44; 60) is different from the surface area of the first structural layer (46). The structural layers (44, 46, 60) encompass an inner filter cavity (30) and are pleated having the same type of pleats. The pleated structural layers (44, 46, 60) extend in axial alignment between two end caps (22, 34) of the filter element (24).Type: GrantFiled: September 6, 2018Date of Patent: April 19, 2022Assignee: HYDAC FILTERTECHNIK GMBHInventors: Matthias Schwender, Edwin Koch, Daniel Kleemann, Ute Lehmann, Alexander Nenno, Andre Michael Schneider
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Publication number: 20200206657Abstract: A filter device for transmission oil, having a filter element (24) which can be inserted into a transmission oil pan (70) and the filter medium (32) of which separates an unfiltered side from a filtrate chamber, which is connected in a fluid-conveying manner to an outlet (38, 50, 72), to which a negative-pressure device such as a suction oil pump, can be connected, wherein the filter medium (32) of the filter element (24) has at least one structural layer (46) having a predetermined surface area and predeterminable filter properties and having at least one further structural layer (44, 60) having predeterminable filter properties, wherein the surface area of the further structural layer (44; 60) is different from the surface area of the first structural layer (46), and wherein the respective structural layers (44, 46, 60) encompass an inner filter cavity (30), is characterized in that the respective structural layers (44, 46, 60) are pleated having the same type of pleats, in that the pleated structural layerType: ApplicationFiled: September 6, 2018Publication date: July 2, 2020Inventors: Matthias SCHWENDER, Edwin KOCH, Daniel KLEEMANN, Ute LEHMANN, Alexander NENNO, Andre Michael SCHNEIDER
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Patent number: 10596493Abstract: A support structure (16) for a filter element includes at least one surface part (10), in which one or more fluid passage openings (12a-12e) with predetermined opening cross-sections are formed. The opening cross-section of at least one fluid passage opening (12a-12e) is at least partially elliptical-shaped.Type: GrantFiled: October 6, 2012Date of Patent: March 24, 2020Assignee: HYDAC FILTER TECHNIK GMBHInventors: Matthias Schwender, Andreas Schmitz, Edwin Koch, Stefan Jochum
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Patent number: 10307699Abstract: A filtering element for filtering devices, comprising a filtering material (5) which defines a filtering space and is intended for the filtration of fluids, and at least one water indicator (13, 19, 23) which is provided at a location coming into contact with fluid during the filtration mode and indicates the presence of water in the fluid in a visually recognizable manner, is characterized in that the at least one water indicator (13, 19, 23) is provided on an end cap (7, 9) for mounting at one end of the filtering material (5), and/or is at least partially part of the end cap (7, 9), and/or is provided on a fluid-permeable supporting structure (21) surrounding the filtering material (5), and/or is at least partially part of the supporting structure (21).Type: GrantFiled: July 8, 2011Date of Patent: June 4, 2019Assignee: HYDAC FILTERTECHNIK GMBHInventors: Edwin Koch, Matthias Schwender, Andreas Schmitz
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Patent number: 10239002Abstract: A filter material (2) for fluids, in particular hydraulic fluids, includes a filter medium (4) having at least one layer, and a supporting structure (6) partially made of a plastic material and resting flatly in some surface areas on at least one side of the filter medium (4). The filter medium (4) and the supporting structure (6) are connected to one another by laminating, covering and/or by a melting process.Type: GrantFiled: June 22, 2011Date of Patent: March 26, 2019Assignee: HYDAC FILTERTECHNIK GMBHInventors: Matthias Schwender, Andreas Schmitz, Edwin Koch
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Patent number: 10071327Abstract: A filter medium for cleaning fluids includes a filter layer (9) formed from a filter material in a pleated web with a longitudinal direction (X) and a transverse direction (Y). A plastic grid (10) forms a support layer, bears against the filter layer (9) and has linear elements (12, 14) delimiting through openings (16) between them. Two groups of linear elements (12, 14) extend approximately at right angles to one another and delimit rectangular through openings (16). The linear elements (14) having a smaller diameter (d2) are in direct contact with the filter layer (9). The linear elements (12) having a larger diameter (d1) and having a greater spacing from one another relative to the filter layer (9) rest on the smaller diameter linear elements (14).Type: GrantFiled: December 23, 2013Date of Patent: September 11, 2018Assignee: HYDAC FILTERTECHNIK GMBHInventors: Edwin Koch, Matthias Schwender
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Publication number: 20150343353Abstract: A filter material, in particular for hydraulic filters, comprises at least one filter layer (18, 20, 22, 24), each individual filter fold (12) thereof being composed of a pair of filter bid halves (13), consists of a first structure (32) having warp threads (34) and weft threads (36), and of at least one further second structure (20, 22) with a predeterminable filtering characteristic, and is characterized in that the structures are designed such and are operatively connected to one another such that at least one channel guide (40) is formed in the filter layer (15, 20, 22, 24) in particular as a result of the arrangement and geometry of the warp threads (34) and well threads (36) of the first structure (32), said channel guide allowing an undisturbed flow through the respective filter fold half (13) over substantially the entire fold height.Type: ApplicationFiled: January 16, 2014Publication date: December 3, 2015Inventors: Matthias SCHWENDER, Andreas SCHMITZ, Stefan JOCHUM, Edwin KOCH
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Publication number: 20150290571Abstract: The invention relates to a filter medium for cleaning fluids, comprising at least one filler layer (9) which is formed from a filter material and which predetermines a preferably pleated web form of the filter medium having a longitudinal direction (X) and a transverse direction (Y), and at least one plastic grid (10) which as a support layer bears against at least one filter layer (9) and has linear elements (12, 14) which delimit through openings (16) between them.Type: ApplicationFiled: December 23, 2013Publication date: October 15, 2015Inventors: Edwin KOCH, Matthias SCHWENDER
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Patent number: 9108128Abstract: A filter has a filter medium (10) during operation clears fluid, particularly in the form of hydraulic fluid. The filter medium (10) is made of a material such that the potential difference to the fluid to be cleaned is low. The parts of the filter medium (10) have different potentials with respect to each other and/or the fluid to be cleaned such that they cancel each other at least partially, specific dissipation is aspired, or a return of electric charge to the associated filter medium (10) is provided, using a charge equalization situation.Type: GrantFiled: March 5, 2014Date of Patent: August 18, 2015Assignee: Hydac Filtertechnik GmbHInventors: Andreas Schmitz, Edwin Koch, Matthias Schwender, Claudia Brocker
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Publication number: 20140291235Abstract: A support structure (16) for a filter element, comprising at least one surface part (10), in which one or more fluid passage openings (12a-12e) with predetermined opening cross-sections are formed, is characterized in that the opening cross-section of at least one fluid passage opening (12a-12e) is at least partially elliptical-shaped.Type: ApplicationFiled: October 6, 2012Publication date: October 2, 2014Inventors: Andreas Schmitz, Matthias Schwender, Edwin Koch, Stefan Jochum
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Publication number: 20140238928Abstract: 1. Filter material (1) and filter clement (29) with filter material (1). 2. The invention relates to a filter material (1), in particular for hydraulic filters, such as oil filters, consisting of at least one individual layer (5) of a composite of glass fibres (7) with carbon fibres (9). The invention timber relates to a filter element with a corresponding filter material (1).Type: ApplicationFiled: August 28, 2012Publication date: August 28, 2014Inventors: Edwin Koch, Matthias Schwender, Andreas Schmitz, Stefan Jochum
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Publication number: 20140183120Abstract: A filter has a filter medium (10) during operation clears fluid, particularly in the form of hydraulic fluid. The filter medium (10) is made of a material such that the potential difference to the fluid to be cleaned is low. The parts of the filter medium (10) have different potentials with respect to each other and/or the fluid to be cleaned such that they cancel each other at least partially, specific dissipation is aspired, or a return of electric charge to the associated filter medium (10) is provided, using a charge equalization situation.Type: ApplicationFiled: March 5, 2014Publication date: July 3, 2014Applicant: Hydac Filtertechnik GmbHInventors: Andreas Schmitz, Edwin KOCH, Matthias` SCHWENDER, Claudia BROCKER
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Patent number: 8709249Abstract: A filter has a filter medium (10) during operation clears fluid, particularly in the form of hydraulic fluid. The filter medium (10) is made of a material such that the potential difference to the fluid to be cleaned is low. The parts of the filter medium (10) have different potentials with respect to each other and/or the fluid to be cleaned such that they cancel each other at least partially, specific dissipation is aspired, or a return of electric charge to the associated filter medium (10) is provided, using a charge equalization situation.Type: GrantFiled: December 18, 2008Date of Patent: April 29, 2014Assignee: Hydac Filtertechnik GmbHInventors: Andreas Schmitz, Edwin Koch, Matthias Schwender, Claudia Brocker
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Publication number: 20130180899Abstract: A filtering element for filtering devices, comprising a filtering material (5) which defines a filtering space and is intended for the filtration of fluids, and at least one water indicator (13, 19, 23) which is provided at a location coming into contact with fluid during the filtration mode and indicates the presence of water in the fluid in a visually recognizable manner, is characterized in that the at least one water indicator (13, 19, 23) is provided on an end cap (7, 9) for mounting at one end of the filtering material (5), and/or is at least partially part of the end cap (7, 9), and/or is provided on a fluid-permeable supporting structure (21) surrounding the filtering material (5), and/or is at least partially part of the supporting structure (21).Type: ApplicationFiled: July 8, 2011Publication date: July 18, 2013Inventors: Edwin Koch, Matthias Schwender, Andreas Schmitz
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Publication number: 20130146529Abstract: The invention relates to a filter material for fluids, in particular hydraulic fluids, comprising a single- or multi-layered filter medium (6) and a supporting structure which rests flatly on the at least one side thereof and consists of at least one individual fabric (10, 12) made of warp threads (28) and weft threads (32). Said filter material is characterized in that at least one set of warp threads (28) and/or weft threads (32) overlaps three or more adjacent warp threads (28) and/or weft threads (32) while forming a long-float weave.Type: ApplicationFiled: May 27, 2011Publication date: June 13, 2013Inventors: Matthias Schwender, Andreas Schmitz, Edwin Koch
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Publication number: 20130140228Abstract: The invention relates to a filter material (2) for fluids, in particular hydraulic fluids, comprising a filter medium (4) having at least one layer, and a supporting structure (6) which is partially made of a plastic material and rests flatly in some surface areas on at least one side of the filter medium (4). Said filter material is characterized in that the filter medium (4) and the supporting structure (6) are connected to one another by laminating, covering and/or by a melting process.Type: ApplicationFiled: June 22, 2011Publication date: June 6, 2013Inventors: Matthias Schwender, Andreas Schmitz, Edwin Koch
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Publication number: 20110005990Abstract: The invention relates to a filter, comprising a filter medium (10), which during operation is used to clean fluid, particularly in the form of hydraulic fluid, wherein the filter medium (10) is made of a material the potential difference to the fluid to be cleaned is low. The invention further relates to filter solutions, wherein parts of the filter medium (10) have different potentials with respect to each other and/or the fluid to be cleaned such that they cancel each other at least partially, or wherein specific dissipation is aspired, or wherein a return of electric charge to the associated filter medium (10) is provided, using a charge equalization situation.Type: ApplicationFiled: December 18, 2008Publication date: January 13, 2011Inventors: Andreas Schmitz, Edwin Koch, Matthias Schwender, Claudia Brocker
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Patent number: 7767086Abstract: A filter element includes a filter medium (10) extending between two end caps (12, 14) that are respectively connected to an associable end region (16, 18) of the filter medium (10). The filter medium is supported at least on one side on a supporting tube (20). At least one of the end caps (14) and/or at least one end region (16, 18) of the filter medium (10) has a contacting device (22) and/or the respective end cap (14) itself or its parts are embodied in such a way as to derive the electrostatic charges, especially occurring during the operation of the filter element to ensure that the charge generated on the filter medium (Meshpack) by tribo-electrical effects can escape towards a mass point or a mass site via the contacting device (22) or the respective end cap (14).Type: GrantFiled: September 28, 2004Date of Patent: August 3, 2010Assignee: Hydac Filtertechnik GmbHInventors: Edwin Koch, Matthias Schwender, Sören Lange
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Publication number: 20070251875Abstract: The invention relates to a filter element comprising a filter medium (10) extending between two end caps (12, 14) that are respectively connected to an associable end region (16, 18) of the filter medium (10), supported at least on one side on a supporting tube (20). The fact that at least one of the end caps (14) and/or at least one end region (16, 18) of the filter medium (10) comprises a contacting device (22) and/or the respective end cap (14) itself or parts thereof are embodied in such a way as to derive the electrostatic charges especially occurring during the operation of the filter element ensures that the charge generated on the filter medium (Meshpack) by tribo-electrical effects can escape towards a mass point or a mass site via the contacting device (22) or the respective end cap (14).Type: ApplicationFiled: September 28, 2004Publication date: November 1, 2007Inventors: Edwin Koch, Matthias Schwender, Soren Lange