Patents by Inventor Helmut Lukas
Helmut Lukas 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: 7846329Abstract: A replaceable liquid filter, particularly for the lubricating oil of an internal combustion engine, having a substantially cup-shaped housing with a concentrically disposed outlet opening for the filtered liquid and at least one inlet opening for the liquid to be filtered and a filter element sealingly disposed between the inlet opening and the outlet opening. The housing is connected to a top plate, and the top plate is connected to an end plate. A connector for releasably coupling the replaceable liquid filter to a mating part is disposed concentrically in the region of the cover plate, such that the connector extends axially beyond the contour of the replaceable liquid filter.Type: GrantFiled: December 15, 2005Date of Patent: December 7, 2010Assignee: Mann+Hummel GmbHInventors: Helmut Luka, Dieter Schreckenberger, Rainer Loos, Markus Kolczyk
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Patent number: 7553409Abstract: A replaceable liquid filter, particularly for the lubricating oil of an internal combustion engine, including a substantially cup-shaped housing with a concentrically arranged outlet opening for filtered liquid and at least one inlet opening for the liquid to be filtered, and a filter element disposed in a sealing manner in the housing between the inlet opening and the outlet opening. The housing is connected to a top plate, and the top plate is connected to an end plate. The top plate encloses a displacement space which is disposed in an inlet chamber in the mating part, such that the inlet opening in the top plate is disposed in the region of the displacement space and/or a backflow check valve is disposed in the area of the outlet opening such that the backflow check valve is positioned axially outside the effective filter element surface.Type: GrantFiled: December 15, 2005Date of Patent: June 30, 2009Assignee: Mann & Hummel GmbHInventors: Helmut Luka, Markus Kolczyk, Dieter Schreckenberger, Rainer Loos
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Publication number: 20060157394Abstract: A replaceable liquid filter, particularly for the lubricating oil of an internal combustion engine, including a substantially cup-shaped housing with a concentrically arranged outlet opening for filtered liquid and at least one inlet opening for the liquid to be filtered, and a filter element disposed in a sealing manner in the housing between the inlet opening and the outlet opening. The housing is connected to a top plate, and the top plate is connected to an end plate. The top plate encloses a displacement space which is disposed in an inlet chamber in the mating part, such that the inlet opening in the top plate is disposed in the region of the displacement space and/or a backflow check valve is disposed in the area of the outlet opening such that the backflow check valve is positioned axially outside the effective filter element surface.Type: ApplicationFiled: December 15, 2005Publication date: July 20, 2006Applicant: Mann & Hummel GmbHInventors: Helmut Luka, Markus Kolczyk, Dieter Schreckenberger, Rainer Loos
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Publication number: 20060131225Abstract: A replaceable liquid filter, particularly for the lubricating oil of an internal combustion engine, having a substantially cup-shaped housing with a concentrically disposed outlet opening for the filtered liquid and at least one inlet opening for the liquid to be filtered and a filter element sealingly disposed between the inlet opening and the outlet opening. The housing is connected to a top plate, and the top plate is connected to an end plate. A connector for releasably coupling the replaceable liquid filter to a mating part is disposed concentrically in the region of the cover plate, such that the connector extends axially beyond the contour of the replaceable liquid filter.Type: ApplicationFiled: December 15, 2005Publication date: June 22, 2006Applicant: Mann & Hummel GmbHInventors: Helmut Luka, Dieter Schreckenberger, Rainer Loos, Markus Kolczyk
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Patent number: 6994768Abstract: A cylindrical filter element which comprises a folded filter medium, in particular having a pleated configuration, which is annularly secured to a hollow cylinder, two expanded film axial end plates, and a support tube which is integrated into the cylindrical filter element and upon which the folded filter medium may be affixed. The support tube has an annular components adjacent respective axial end plates which has an interlocking fit with the film end plates and which may be connected to a sealing element.Type: GrantFiled: May 21, 2002Date of Patent: February 7, 2006Assignee: Filterwerk Mann & Hummel GmbHInventors: Guenter Jokschas, Helmut Luka, Norbert Strassenberger, Gerhard Vilsmaier, Matthaeus Huber
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Patent number: 6852217Abstract: A filter with a cylindrical filter cartridge in which the filter cartridge has a recess 23, through which functional parts, such as a water level sensor 25 and a water discharge tube 24, can be inserted. This filter may be used, for example, as a fuel filter in which the separated water can be removed from the housing through the functional parts. The functional parts are arranged on a support member 26 and extended through the recess 23, 23a in the filter cartridge 19, and can be accommodated in a space saving manner on the housing cover 12. As a result, the fuel filter can be accommodated particularly in cramped installation spaces in the engine compartment of an internal combustion engine.Type: GrantFiled: June 15, 2001Date of Patent: February 8, 2005Assignee: Filterwerk Mann & Hummel GmbHInventors: Guenter Jokschas, Helmut Luka, Jochen Reyinger
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Patent number: 6662954Abstract: A filter cartridge comprising an annularly closed filter medium provided with end disks (16). Within the interior of the cartridge there is a support tube (24), which is made in one piece and has a radial sealing ring (25) in its interior. The outside diameter of the support tube is chosen such that the support tube can be inserted into the filter cartridge. This produces a sealing effect between the end disks (16) and the outer circumference of the support tube. The filter cartridge of the invention has the advantage of being cost-effective to produce and simple to assemble.Type: GrantFiled: June 18, 2001Date of Patent: December 16, 2003Assignee: Filterwerk Mann & Hummel GmbHInventors: Renate Gottwald-Grill, Helmut Luka
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Publication number: 20030146149Abstract: A filter element including an annular support body, a filter medium, which is preferably a filter paper folded in a zigzag shape, positioned on the annular support body, and end disks, which are positioned on the axial end faces of the filter medium and glued or welded to the filter medium. The filter element is characterized in that a seal carrier is provided on the support body in the vicinity of one or both end disks, and a seal, particularly an elastomer seal, is affixed to the seal carrier in an interlocking manner. The seal carrier is designed to be radially elastic. The filter of the invention is particularly suitable for filtering liquids.Type: ApplicationFiled: October 23, 2002Publication date: August 7, 2003Applicant: Filterwerk Mann & Hummel GmbHInventors: Walter Binder, Helmut Luka, Norbert Strassenberger, Gerhard Vilsmaier, Matthaeus Huber, Renate Gottwald-Grill
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Patent number: 6599342Abstract: A filter cartridge (16), especially for installation in an air filter of an internal combustion engine having a housing (10) with an inlet (12) for untreated air and an outlet (13) for clean air, the filter cartridge preferably being made of a pleated filter medium, and being provided with sealing elements on end plates (18, 19) arranged at the axial end faces of the filter cartridge. A support body (17) is provided on the inner wall of the filter cartridge with support surfaces (23) for axially and radially positioning the filter cartridge. A seal element (26) extending axially along the support body is also provided in the area of the support body.Type: GrantFiled: January 2, 2002Date of Patent: July 29, 2003Assignee: Filterwerk Mann & Hummel GmbHInventors: Heinz Andress, Helmut Luka, Bertram Uebelhoer, Gerhard Mayer, Werner Blossey
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Patent number: 6511101Abstract: A support tube for a fluid filter, particularly a support tube made of synthetic resin material, which is made up of two substantially identical tube parts (3) each of which has at least one inlet opening (4), at least one outlet opening (5) and at least one radial sealing area (6) and/or axial sealing area (7), and at least one connecting region (8) which engages the other tube part to connect the tube parts and form an assembled support tube.Type: GrantFiled: March 24, 1999Date of Patent: January 28, 2003Assignee: Filterwerk Mann & Hummel GmbHInventors: Bruno Sommer, Helmut Luka
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Publication number: 20030010707Abstract: A cylindrical filter element which comprises a folded filter medium, in particular having a pleated configuration, which is annularly secured to a hollow cylinder, two expanded film axial end plates, and a support tube which is integrated into the cylindrical filter element and upon which the folded filter medium may be affixed. The support tube has an annular components adjacent respective axial end plates which has an interlocking fit with the film end plates and which may be connected to a sealing element.Type: ApplicationFiled: May 21, 2002Publication date: January 16, 2003Applicant: Filterwerk Mann & Hummel GmbHInventors: Guenter Jokschas, Helmut Luka, Norbert Strassenberger, Gerhard Vilsmaier, Matthaeus Huber
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Publication number: 20020112459Abstract: A filter cartridge (16), especially for installation in an air filter of an internal combustion engine having a housing (10) with an inlet (12) for untreated air and an outlet (13) for clean air, the filter cartridge preferably being made of a pleated filter medium, and being provided with sealing elements on end plates (18, 19) arranged at the axial end faces of the filter cartridge. A support body (17) is provided on the inner wall of the filter cartridge with support surfaces (23) for axially and radially positioning the filter cartridge. A seal element (26) extending axially along the support body is also provided in the area of the support body.Type: ApplicationFiled: January 2, 2002Publication date: August 22, 2002Inventors: Heinz Andress, Helmut Luka, Bertram Uebelhoer, Gerhard Mayer, Werner Blossey
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Patent number: 6391193Abstract: Several filter elements (13, 14) for purifying a liquid are connected with a connecting piece (21) to form a single structural unit which is then arranged in a filter housing (12). One of the advantages of the invention is that the filter elements (13, 14) can be connected before they are introduced into the filter housing (12). This makes the final assembly of the complete filter (11) considerably easier by reducing the number of parts. The connecting piece (21) can also be used to separate a flow of liquid into two partial flows which can be filtered through different filter elements so that they differ in their degree of purity.Type: GrantFiled: December 4, 2000Date of Patent: May 21, 2002Assignee: Filterwerk Mann & Hummel GmbHInventor: Helmut Luka
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Publication number: 20020038780Abstract: A filter with a cylindrical filter cartridge in which the filter cartridge has a recess 23, through which functional parts, such as a water level sensor 25 and a water discharge tube 24, can be inserted. This filter may be used, for example, as a fuel filter in which the separated water can be removed from the housing through the functional parts. The functional parts are arranged on a support member 26 and extended through the recess 23, 23a in the filter cartridge 19, and can be accommodated in a space saving manner on the housing cover 12. As a result, the fuel filter can be accommodated particularly in cramped installation spaces in the engine compartment of an internal combustion engine.Type: ApplicationFiled: June 15, 2001Publication date: April 4, 2002Inventors: Guenter Jokschas, Helmut Luka, Jochen Reyinger
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Publication number: 20020036165Abstract: A filter element (15) for filtering a liquid or gaseous medium including a pleated filter (16) of paper or non-woven fabric, and end plates (17, 18) on end faces of the filter element, with the end plates preferably being made of thermoplastic synthetic resin material, at least one of the end plates carrying a sealing element (19, 25, 27, 28) which is connected to the end plate by at least two lateral surfaces (20, 21).Type: ApplicationFiled: September 10, 2001Publication date: March 28, 2002Inventors: Bruno Sommer, Helmut Luka, Ludwig Schott
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Publication number: 20020020662Abstract: A filter cartridge comprising an annularly closed filter medium provided with end disks (16). Within the interior of the cartridge there is a support tube (24), which is made in one piece and has a radial sealing ring (25) in its interior. The outside diameter of the support tube is chosen such that the support tube can be inserted into the filter cartridge. This produces a sealing effect between the end disks (16) and the outer circumference of the support tube. The filter cartridge of the invention has the advantage of being cost-effective to produce and simple to assemble.Type: ApplicationFiled: June 18, 2001Publication date: February 21, 2002Inventors: Renate Gottwarld-Grill, Helmut Luka
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Patent number: 6066332Abstract: A medicament for immediately treating painful, inflammatory and/or febrile diseases contains as active substance ibuprofen as a racemate, as a racemic mixture with its enantiomers, as a pseudoracemate (mixtures of equal parts of S- and R-ibuprofen) or as a mixture of different parts of S- and R-ibuprofen in a range between pure S- and pure R-ibuprofen in the form of a pharmaceutically applicable nanosol and satisfies all requirements of an immediate-effect pharmaceutic form. It can in addition be combined with a slow-release medicament that contains as active substance ibuprofen as a racemic compound, as a pseudoracemate (mixtures of equal parts of S- and R-ibuprofen) or as a mixture of different parts of S- and R-ibuprofen in a range between pure S- and pure R-ibuprofen, in the form of a pharmaceutically applicable, gelatine-based nanosol.Type: GrantFiled: December 1, 1995Date of Patent: May 23, 2000Assignees: Alfatec-Pharma GmbH, PAZ Arzneimittelentwicklungsgesellschaft mbHInventors: Jens-Christian Wunderlich, Otto Schuster, Helmut Lukas, Ursula Schick
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Patent number: 6039780Abstract: A filter arrangement with a cellular structure in which a plurality of filter chambers extend in the direction of the medium to be filtered. There is a filter cloth or fabric attached to each of the two sides of a cell frame which closes the filter chambers on both sides. The filter chambers are each provided with a filling of predominantly active charcoal granules. To achieve a simple and advantageous structure of the filter arrangement, the cellular structure is in the form of a rectangular cell frame each with rectangular filter chambers, preferably made of synthetic resin. Appropriate, right-angled partition walls inside the cell frame and the installation of reinforcement members can result in filter chambers of optimum size.Type: GrantFiled: September 2, 1998Date of Patent: March 21, 2000Assignee: Filterwerk Mann & Hummel GmbHInventors: Karl Ernst Hummel, Helmut Luka, Bruno Sommer
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Patent number: 5879423Abstract: A filter, especially for the interior ventilation of vehicles, including at least one filter body configured as a plate-like element and a frame surrounding the plate-like element, the frame being made from at least two frame parts joined together in the plane of the plate-like element.Type: GrantFiled: March 5, 1996Date of Patent: March 9, 1999Assignee: Filterwerk Mann & Hummel GmbHInventors: Helmut Luka, Bruno Sommer
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Patent number: 5620505Abstract: A filter having a filter element disposed in a filter housing; the filter element being formed of a pleated filter paper or a nonwoven filter material and being of substantially planar or flat configuration. Sealing elements in the form of a rolled seal are provided on at least two lateral surfaces of the filter in order to seal the filter element in the filter housing.Type: GrantFiled: August 29, 1995Date of Patent: April 15, 1997Assignee: Filterwerk Mann & Hummel GmbHInventors: Volker Koch, Helmut Luka, Nikolaus Moser, Bruno Sommer, Manfred Wagner