Patents by Inventor Mario Rieger

Mario Rieger 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).

  • Publication number: 20250242288
    Abstract: A gas filter system including a housing, a first filter element having a first filter medium and a second filter element having a second filter medium, the first and second filter elements being arranged inside the housing and the first filter medium and the second filter medium surrounding a common longitudinal axis, wherein a flexible sealing lip protrudes in the axial direction from the first filter medium, wherein the housing has a first sealing surface for sealing abutment against the sealing lip, wherein a rigid sealing rib protrudes from the second filter element, the sealing rib having a second sealing surface for sealing abutment against the sealing lip, wherein the sealing lip is compressed between the first sealing surface and the second sealing surface, and wherein the second sealing surface faces radially outwardly.
    Type: Application
    Filed: March 19, 2025
    Publication date: July 31, 2025
    Inventors: Pascal NEEF, Christoph WITTMERS, Andreas WEBER, Dennis STARK, Mario RIEGER, Markus HANSELMANN, Peter PEKNY, Eva HALLBAUER, Daniel SCHMID, Steffen GERLACH, Friedrich KUPFER, Philipp HETTKAMP, Johannes GRAD, Pedro Miguel PEREIRA MADEIRA, Dieter WEISS
  • Publication number: 20250214019
    Abstract: A gas filter system including an outer filter element having a first filter medium arranged between a first end cap and a second end cap, and an inner filter element having a second filter medium arranged between a third end cap and a fourth end cap, wherein the first filter medium is arrangeable to surround the second filter medium, wherein the first, third and fourth end caps are open, wherein the outer filter element is closed at the second end cap, wherein the outer filter element has an axial protrusion at the second end cap that protrudes into the inner filter element and exhibits a radially outward facing sealing surface, and wherein the fourth end cap of the inner filter element has a second sealing section for sealing abutment against the sealing surface of the protrusion.
    Type: Application
    Filed: March 18, 2025
    Publication date: July 3, 2025
    Inventors: Pascal NEEF, Christoph WITTMERS, Andreas WEBER, Dennis STARK, Mario RIEGER, Markus HANSELMANN, Peter PEKNY, Eva HALLBAUER, Daniel SCHMID, Steffen GERLACH, Friedrich KUPFER, Philipp HETTKAMP, Johannes GRAD, Pedro Miguel PEREIRA MADEIRA, Dieter WEISS
  • Publication number: 20250214016
    Abstract: A gas filter system comprising an outer filter element having a first filter medium arranged between a first end cap and a second end cap, and an inner filter element having a second filter medium arranged between a third end cap and a fourth end cap, the first filter medium being arrangeable to surround the inner filter medium, wherein the first, second, third and fourth end caps are open.
    Type: Application
    Filed: March 18, 2025
    Publication date: July 3, 2025
    Inventors: Pascal NEEF, Christoph WITTMERS, Andreas WEBER, Dennis STARK, Mario RIEGER, Markus HANSELMANN, Peter PEKNY, Eva HALLBAUER, Daniel SCHMID, Steffen GERLACH, Friedrich KUPFER, Philipp HETTKAMP, Johannes GRAD, Pedro Miguel PEREIRA MADEIRA, Dieter WEISS
  • Publication number: 20250214022
    Abstract: A gas filter system including a housing with a sealing projection and a housing groove; an outer filter element having a first filter medium with a first end cap and a second end cap; and an inner filter element having a second filter medium with a third end cap and a fourth end cap, wherein the first end cap has a first axial end cap projection and the third end cap has a second axial end cap projection, the end cap projections being arranged in the housing groove; the first and second end cap projections forming a common groove into which the sealing projection protrudes for sealing abutment against the first end cap and the third end cap at the common groove. The use of an outer filter element and/or an inner filter element in the gas filter system.
    Type: Application
    Filed: March 19, 2025
    Publication date: July 3, 2025
    Inventors: Pascal NEEF, Christoph WITTMERS, Andreas WEBER, Dennis STARK, Mario RIEGER, Markus HANSELMANN, Peter PEKNY, Eva HALLBAUER, Daniel SCHMID, Steffen GERLACH, Friedrich KUPFER, Philipp HETTKAMP, Johannes GRAD, Pedro Miguel PEREIRA MADEIRA, Dieter WEISS
  • Publication number: 20250214018
    Abstract: A gas filter system including an outer filter element having a first filter medium arranged between a first end cap and a second end cap, and an inner filter element having a second filter medium arranged between a third end cap and a fourth end cap, wherein the first, second and third end caps are open, the inner filter element is closed at the fourth end cap, the first filter medium is arrangeable to surround the second filter medium, such that the first end cap of the outer filter element surrounds the third end cap of the inner filter element, the first and third end caps are sealed against each other, and such that the second end cap of the outer filter element surrounds the fourth end cap of the inner filter element, and the second and fourth end caps are sealed against each other.
    Type: Application
    Filed: March 18, 2025
    Publication date: July 3, 2025
    Inventors: Pascal NEEF, Christoph WITTMERS, Andreas WEBER, Dennis STARK, Mario RIEGER, Markus HANSELMANN, Peter PEKNY, Eva HALLBAUER, Daniel SCHMID, Steffen GERLACH, Friedrich KUPFER, Philipp HETTKAMP, Johannes GRAD, Pedro Miguel PEREIRA MADEIRA, Dieter WEISS
  • Publication number: 20250214021
    Abstract: A gas filter system including an outer filter element having a first filter medium arranged between a first end cap and a second end cap, and an inner filter element having a second filter medium arranged between a third end cap and a fourth end cap, wherein the first, third and fourth end caps are open, wherein the outer filter element is closed at the second end cap, wherein the first filter medium is arrangeable to surround the second filter medium, such that the outer filter element is sealed against the inner filter element between the second end cap and the fourth end cap.
    Type: Application
    Filed: March 18, 2025
    Publication date: July 3, 2025
    Inventors: Pascal NEEF, Christoph WITTMERS, Andreas WEBER, Dennis STARK, Mario RIEGER, Markus HANSELMANN, Peter PEKNY, Eva HALLBAUER, Daniel SCHMID, Steffen GERLACH, Friedrich KUPFER, Philipp HETTKAMP, Johannes GRAD, Pedro Miguel PEREIRA MADEIRA, Dieter WEISS
  • Patent number: 12233369
    Abstract: An air filter element for an air filter for an internal combustion engine is provided with a filter medium surrounding annularly a longitudinal axis of the air filter element. A first end disk is provided at a first end face of the air filter element, wherein the filter medium is embedded in the first end disk at the first end face. A clean air seal is configured to seal a raw side of the air filter against a clean side of the air filter. The clean air seal and the first end disk are embodied together as one piece. The clean air seal protrudes continuously radially past the filter medium. A filter housing for the air filter element is provided with a filter pot and a cover and has a clean air outlet and a raw air inlet arranged at a side wall of the filter pot.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: February 25, 2025
    Assignee: MANN+HUMMEL GmbH
    Inventors: Pascal Neef, Torsten Fritzsching, Philipp Hettkamp, Arthur Sudermann, Friedrich Kupfer, Mario Rieger
  • Publication number: 20240278162
    Abstract: A round filter element for filtering gaseous fluid has a particle filter medium body and a separate noxious gas filter medium body arranged concentrically to the particle filter medium body. Particle filter medium body and noxious gas filter medium body surround an inwardly positioned flow chamber. A first common end plate flow-tightly covers a respective first end face of particle filter medium body and noxious gas filter medium body. A second common end plate flow-tightly covers a respective second end face of particle filter medium body and noxious gas filter medium body. A gas-permeable support element is arranged at a wall of the particle filter medium body or of the noxious gas filter medium body. The gas-permeable support element projects into material of at least one of the first and second common end plates and is fixedly connected thereto. A filter device is provided with such a filter element.
    Type: Application
    Filed: April 29, 2024
    Publication date: August 22, 2024
    Inventors: Daniel SCHMID, Philipp HETTKAMP, Eva HALLBAUER, Volkmar CHOWANIETZ, Mario RIEGER
  • Publication number: 20240278164
    Abstract: A round filter element for gaseous fluid has a particle filter medium body formed as a hollow body for particle filtration and a separate harmful gas filter medium body formed as a hollow body for harmful gas filtration arranged concentrically to the particle filter medium body; together they surround an inner flow chamber. Particle filter medium body and harmful gas filter medium body each have opposed end faces with end disks. A flow-tight separate connection element is connected to an end disk of the particle filter medium body and engages a neighboring end disk of the harmful gas filter medium body or is connected to an end disk of the harmful gas filter medium body and engages a neighboring end disk of the particle filter medium body to produce a flow-tight connection with the neighboring end disk, respectively. A filter device is provided with such a round filter element.
    Type: Application
    Filed: April 29, 2024
    Publication date: August 22, 2024
    Inventors: Daniel SCHMID, Philipp HETTKAMP, Jürgen FREISINGER, Mario RIEGER
  • Publication number: 20240278163
    Abstract: A round filter element for filtering gaseous fluid has a particle filter medium body and a separate noxious gas filter medium body arranged concentrically in relation to the particle filter medium body. The particle filter medium body and the noxious gas filter medium body surround an inwardly positioned flow chamber. A first common end plate flow-tightly covers a respective first end face of the particle filter medium body and of the noxious gas filter medium body. A second common end plate flow-tightly covers a respective second end face of the particle filter medium body and of the noxious gas filter medium body. The particle filter medium body is a filter bellows and the noxious gas filter medium body is a filter bellows. A filter device having a filter housing is provided with such a filter element.
    Type: Application
    Filed: April 29, 2024
    Publication date: August 22, 2024
    Inventors: Daniel SCHMID, Philipp HETTKAMP, Eva HALLBAUER, Volkmar CHOWANIETZ, Mario RIEGER
  • Publication number: 20240145740
    Abstract: A humidifier has a housing with inlet and outlet for a first fluid and inlet and outlet for a second fluid. A plate stack with channel plates sequentially arranged in a stacking direction is arranged in the housing. The channel plates have flow channels for the first and second fluids, respectively, separated by semipermeable membranes. The plate stack has a first end plate arranged at a first end and a second end plate arranged at a second end, wherein the first and second ends face away from each other in stacking direction. The housing has a receiving device interacting with a counter receiving device at the plate stack for supporting and sealing the plate stack in the housing. The counter receiving device extends in a plane normal to the stacking direction and is arranged at the first or second end plate. A plate stack for the humidifier is provided.
    Type: Application
    Filed: January 8, 2024
    Publication date: May 2, 2024
    Inventors: Alexander KORN, Ralph KEMPER, Herbert PIETROWSKI, Matthias MUELLER, Mario RIEGER
  • Patent number: 11959443
    Abstract: A filter element for a filter system for filtering a fluid has a filter bellows arranged about a longitudinal axis and enclosing an interior of the filter element. An end disk that is provided with an opening to the interior of the filter element is arranged at the filter bellows. The end disk has a bead that is arranged at the opening to the interior and partially surrounds the opening to the interior. The bead projects outwardly in a direction of the longitudinal axis. The filter system has a housing with a cover and a housing part closable by the cover. The filter element can be exchangeably arranged in the housing. The bead, in a mounted state of the filter element in the housing, engages a complementary receptacle arranged at an inner side of the cover.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: April 16, 2024
    Assignee: MANN+HUMMEL GmbH
    Inventors: Pascal Neef, Torsten Fritzsching, Philipp Hettkamp, Arthur Sudermann, Friedrich Kupfer, Mario Rieger
  • Patent number: 11857903
    Abstract: A cover for a filter system for filtering a fluid has a fluid channel arranged at an inner side of the cover. The cover has a rim and at least one opening arranged in the rim to allow the fluid to pass through, wherein the opening is connected in fluid communication with the fluid channel. The fluid channel is connected in fluid communication with the interior of a filter element of the filter system. A seal for the cover has a first sealing ring and a second sealing connected to each other by flanks. The filter system has a housing with a housing part that is closable by the cover. A filter element is exchangeably arranged in the housing, and the fluid channel of the cover is connected in fluid communication to the interior of the filter element.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: January 2, 2024
    Assignee: MANN+HUMMEL GmbH
    Inventors: Pascal Neef, Torsten Fritzsching, Philipp Hettkamp, Mario Rieger
  • Patent number: 11826688
    Abstract: A filter device is provided with a filter housing and a filter element arranged in the filter housing. The filter element is provided with an annular filter medium body that has an inflow side. The filter housing has a dirt collecting region in flow communication with the inflow side of the annular filter medium body. The dirt collecting region has an annular circumferentially extending configuration. A flow-tight separation element is arranged at or adjacent to the annular filter medium body. The dirt collecting region adjoins the flow-tight separation element. An inflow region is positioned at the inflow side of the annular filter medium body and immediately adjoins the dirt collecting region. The dirt collecting region has a radial extension relative to a longitudinal axis of the annular filter medium body, and the radial extension of the dirt collecting region is larger than a radial extension of the inflow region.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: November 28, 2023
    Assignee: MANN+HUMMEL GmbH
    Inventors: Mario Rieger, Pedro Miguel Pereira Madeira, Stefan Kunze, Ulrich Dehnen, Johannes Stuerner, Markus Beylich
  • Patent number: 11471807
    Abstract: A filter housing for a filter device is provided with an inlet housing arranged upstream of a filter element. The inlet housing has an inflow opening for introducing a fluid to be purified into the filter housing. The inlet housing has an overflow opening at an outlet of the inlet housing, wherein the overflow opening conveys the fluid to be purified to the filter element. The inlet housing has an inlet channel disposed between the inflow opening and the overflow opening. The inlet channel has an intermediately positioned channel section located between the inflow opening and the overflow opening, wherein a cross-sectional shape of the intermediately positioned channel section differs from a cross-sectional shape of the inflow opening and from a cross-sectional shape of the overflow opening.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: October 18, 2022
    Assignee: MANN+HUMMEL GmbH
    Inventors: Mario Rieger, Pedro Miguel Pereira Madeira, Stefan Kunze, Ulrich Dehnen, Johannes Stuerner, Markus Beylich
  • Patent number: 11338235
    Abstract: A filter device is provided with a filter housing provided with a housing wall and with a filter element arranged in the filter housing. The filter element has an annular filter medium body and an end disk arranged at an end face of the filter medium body. The filter medium body surrounds in a ring shape an inwardly positioned flow space for receiving a fluid to be filtered. An annular circumferentially extending flow path is positioned between an outer contour of the end disk and an inner side of the housing wall of the filter housing. Guide vanes project into the annular circumferentially extending flow path. The guide vanes are fastened at the end disk at the filter element. A cover is arranged at the end disk at the filter element and covers a portion of the annular circumferentially extending flow path.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: May 24, 2022
    Assignee: MANN+HUMMEL GmbH
    Inventors: Mario Rieger, Pedro Miguel Pereira Madeira, Stefan Kunze, Ulrich Dehnen, Johannes Stuerner, Markus Beylich
  • Patent number: 11247159
    Abstract: A filter device is disclosed having a round filter element having a filter medium body with an open interior. The filter element is installable into a filter housing having a base filter housing and a housing cover, in which an inflow opening of the cover overlaps against and aligns with an inflow opening of a base housing part such they form a continuous inflow opening. A support mesh cage arranged on the radially outer wall of the annular filter medium body. The filter housing has a longitudinally extended cross-sectional shape in which the inflow opening and an outlet opening are both arranged on the base housing part at opposing sides of the base housing part.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: February 15, 2022
    Assignee: MANN+HUMMEL GmbH
    Inventors: Pascal Neef, Nadine Donauer, Philipp Hettkamp, Arthur Sudermann, Torsten Fritzsching, Mario Rieger, Michael Heim
  • Patent number: 11219855
    Abstract: A filter module is provided with a filter housing provided with an inflow opening. A filter element with an annular filter medium body with an elongate cross-sectional shape is arranged inside the filter housing. A flow path is defined between the inflow opening of the filter housing and an inflow side of the filter medium body. A swirl device is arranged in the flow path and impresses a swirl onto an incoming fluid. The swirl device is a part separate from an outer wall of the filter housing. The swirl device is arranged axially upstream of the inflow side of the filter medium body. The swirl device is provided with a displacement body arranged inside the filter housing adjacent to the inflow opening. The displacement body forms a flow guiding element.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: January 11, 2022
    Assignee: MANN+HUMMEL GmbH
    Inventors: Mario Rieger, Pedro Miguel Pereira Madeira, Stefan Kunze, Ulrich Dehnen, Johannes Stuerner, Markus Beylich
  • Patent number: 11192054
    Abstract: A filter element is provided with an annular filter medium body and an end disk arranged at an end face of the annular filter medium body. Guide vanes are arranged adjacent to the end disk, wherein the guide vanes extend radially past an outer contour of the end disk and project into a flow path upstream of an inflow side of the annular filter medium body. The guide vanes are held at the end disk.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: December 7, 2021
    Assignee: MANN+HUMMEL GmbH
    Inventors: Mario Rieger, Pedro Miguel Pereira Madeira, Stefan Kunze, Ulrich Dehnen, Johannes Stuerner, Markus Beylich
  • Publication number: 20210138380
    Abstract: A cover for a filter system for filtering a fluid has a fluid channel arranged at an inner side of the cover. The cover has a rim and at least one opening arranged in the rim to allow the fluid to pass through, wherein the opening is connected in fluid communication with the fluid channel. The fluid channel is connected in fluid communication with the interior of a filter element of the filter system. A seal for the cover has a first sealing ring and a second sealing connected to each other by flanks. The filter system has a housing with a housing part that is closable by the cover. A filter element is exchangeably arranged in the housing, and the fluid channel of the cover is connected in fluid communication to the interior of the filter element.
    Type: Application
    Filed: November 17, 2020
    Publication date: May 13, 2021
    Inventors: Pascal Neef, Torsten Fritzsching, Philipp Hettkamp, Mario Rieger