Patents by Inventor Nadine DONAUER

Nadine DONAUER 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).

  • Patent number: 10946323
    Abstract: A round filter element has a filter medium body with a wall to be flowed through by a fluid to be purified in a radial direction relative to a longitudinal axis of the filter medium body. A circumferentially extending seal carrier is arranged at or adjacent to an end face of the filter medium body. A sealing element is supported at the seal carrier adjacent to a radial outer side of the filter medium body. A positioning element extends into the filter medium body and engages with form fit a correlated housing-associated counter positioning element of a filter housing when the round filter element is installed in the filter housing. The seal carrier separates flow-tightly a raw side of the round filter element from a clean side of the round filter element when the round filter element is installed in the filter housing.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: March 16, 2021
    Assignee: MANN+HUMMEL GmbH
    Inventors: Pascal Neef, Nadine Donauer, Philipp Hettkamp, Torsten Fritzsching, Pedro Miguel Pereira Madeira
  • Patent number: 10940418
    Abstract: A round filter element has a filter medium body with a wall to be flowed through by a fluid to be purified radially relative to a longitudinal axis of the filter medium body. The filter medium body has a longitudinally extending cross-sectional shape in a direction transverse to the longitudinal axis. The filter medium body has a first end face and a second end that are axially oppositely positioned relative to each other in a direction along the longitudinal axis of the filter medium body. A first end disk and a second end disk are arranged at the first and second end faces, respectively, and have the same cross-sectional shape. The filter medium body has a twist by being twisted about the longitudinal axis such that the axially oppositely positioned first and second end faces of the filter medium body are angularly displaced relative to each other.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: March 9, 2021
    Assignee: MANN+HUMMEL GmbH
    Inventors: Nadine Donauer, Pascal Neef
  • Patent number: 10898842
    Abstract: A filter element with at least one filter medium body and with a grip configured to hold and guide the filter element is provided. At least one locking element is arranged at the grip and configured to lock the filter element on a receiving filter housing. A filter device with such a filter element has a receiving filter housing to receive the filter element and a cover to secure the locking element in locked position on the filter housing.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: January 26, 2021
    Assignee: MANN+HUMMEL GmbH
    Inventors: Torsten Fritzsching, Pedro Miguel Pereira Madeira, Andreas Franz, Nadine Donauer, Martin Gruber, Joachim-Paul Krieger, Marcel Holzwarth, Manfred Winter
  • Patent number: 10883456
    Abstract: A filter element (10) is provided with open filter body (16) of a filter medium (18). The filter element (10) has at least one longitudinal mating surface (40) which is directed with at least one direction component axially to an element axis (14) of the filter element (10) and which is in contact with a corresponding longitudinal mating surface of the filter housing (11) for securing the filter element (10) axially to the element axis (14). The filter element (10) has at least one transverse retaining surface (52) which is directed with at least one direction component across the element axis (14). The transverse retaining surface (52) is separated from the at least one longitudinal retaining surface (40) and may be in contact with a corresponding transverse mating surface (56) of the filter housing (11) for securing the filter element (10) across the element axis (14).
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: January 5, 2021
    Assignee: MANN+HUMMEL GmbH
    Inventors: Pascal Neef, Werner Blossey, Mario Rieger, Robert Hasenfratz, Nadine Donauer, Andreas Weber
  • Patent number: 10881998
    Abstract: A filter device has an annular filter element with a filter medium body for radial fluid flow relative to a longitudinal axis. A sealing element arranged at an end face of the filter medium body seals relative to a housing component of a filter housing receiving the filter element. The sealing element has support walls delimiting a slit between them. The housing component has a receiving groove engaging across the sealing element and provided with opposed side walls. The housing component has a support rib projecting into slit. The support walls each have a first support surface at a side facing the slit and a second support surface at a side facing away from the slit. The side walls of the receiving groove are radially supported at the second support surfaces of the support walls. The support rib is supported radially at the first support surfaces of the support walls.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: January 5, 2021
    Assignee: MANN+HUMMEL GmbH
    Inventors: Nadine Donauer, Pedro Miguel Pereira Madeira
  • Patent number: 10773201
    Abstract: An annular filter element has a filter medium body configured to be flowed through by a fluid to be purified in a radial direction. A sealing element is arranged at the end face of the filter medium body and extends circumferentially around the end face. The sealing element has at least one first sealing section comprising a massive and large cross-sectional area and one or more second sealing sections with a cross-sectional area that is at least partially reduced in comparison to the large cross-sectional area. The one or more second sealing sections include a second sealing section with a groove-type recess, wherein the groove-type recess extends at least approximately across a length of the second sealing section with the groove-type recess or across a portion of said length.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: September 15, 2020
    Assignee: MANN+HUMMEL GmbH
    Inventors: Andreas Franz, Torsten Fritzsching, Nadine Donauer, Marcel Holzwarth, Pedro Miguel Pereira Madeira, Christoph Wittmers, Manfred Winter, Joachim-Paul Krieger, Martin Gruber
  • Patent number: 10744444
    Abstract: A filter element has a filter medium body enclosing an inwardly positioned flow space and having a center axis. A support frame is arranged at an inner side of the filter medium body. At least one circumferentially extending sealing ring lip is arranged at the filter medium body and projects axially in an axial direction relative to the center axis past an end face of the filter medium body. The sealing ring lip is designed to seal relative to a housing component of a receiving filter housing. A support ring is arranged at the end face of the filter medium body at a radial distance to the sealing ring lip in a radial direction relative to the center axis. The support ring is supported in the radial direction at the support frame and is formed as one piece together with the support frame.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: August 18, 2020
    Assignee: MANN+HUMMEL GmbH
    Inventors: Torsten Fritzsching, Pedro Miguel Pereira Madeira, Nadine Donauer, Andreas Franz, Marcel Holzwarth, Manfred Winter, Martin Gruber, Joachim-Paul Krieger
  • Patent number: 10702820
    Abstract: A filter element has a filter medium body with a first side and an oppositely positioned second side. A first sealing or supporting element is arranged at the first side. A second sealing or supporting element is arranged at the second side. The first side is positioned in a plane. The second side has a first section and a second section, wherein the first section has a first spacing relative to the first side and the second section has a second spacing relative to the first side, wherein the first and second spacings are different. One of the first and second sides is the inflow side of the filter medium body and the other one of the first and second sides is the outflow side of the filter medium body.
    Type: Grant
    Filed: August 26, 2018
    Date of Patent: July 7, 2020
    Assignee: MANN+HUMMEL GmbH
    Inventors: Pascal Neef, Pedro Miguel Pereira Madeira, Michael Heim, Nadine Donauer, Martin Wuebbeling
  • Patent number: 10702821
    Abstract: An annular filter element has a filter medium body that can be flowed through in a radial direction by a fluid to be cleaned. A central tube is arranged at an inner side of the filter medium body. A support collar is connected to the central tube and provides an end face forming an axial support surface for a housing component of a filter housing. A sealing element is connected to the support collar. The support collar has a radial side face, wherein the radial side face carries the sealing element and forms a sealing surface for the housing component, wherein the sealing surface is spaced apart from the axial support surface. The support collar is formed together with the central tube as one piece.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: July 7, 2020
    Assignee: MANN+HUMMEL GmbH
    Inventors: Nadine Donauer, Pedro Miguel Pereira Madeira
  • Patent number: 10512867
    Abstract: A filter assembly has a main filter element disposed in a filter housing and provided with an end disk with a first sealing element that seals the main filter element relative to the filter housing. A secondary filter element is disposed in the filter housing and is provided with an end disk with a second sealing element that seals the secondary filter element relative to the filter housing. The end disk of the secondary filter element is arranged relative to an axial direction of the filter assembly between the end disk of the main filter element and the filter housing. The end disk of the secondary filter element is arranged inside a flow cross section of a fluid outlet of the filter housing. The end disks of the main filter element and of the secondary filter element are axially supported on each other at least over sections thereof.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: December 24, 2019
    Assignee: MANN+HUMMEL GmbH
    Inventor: Nadine Donauer
  • Publication number: 20190308123
    Abstract: A filter device has a filter housing and a round filter element received in the interior of the filter housing. The round filter element has a filter medium body with a wall flowed through radially relative to a longitudinal axis of the filter medium body by a fluid to be purified. The round filter element has a first end disk and a second end disk arranged at opposed end faces of the filter medium body. The filter medium body has an inwardly positioned flow space inside the filter medium body that is the raw side of the round filter element. A support grid is arranged externally at the wall of the filter medium body. The filter housing has a housing cover with a flow guiding rib arranged at an inner side of the housing cover facing the interior. The flow guiding rib projects into the inwardly positioned flow space.
    Type: Application
    Filed: April 17, 2019
    Publication date: October 10, 2019
    Inventors: Pascal Neef, Nadine Donauer, Fabian Wagner, Torsten Fritzsching
  • Publication number: 20190308125
    Abstract: A round filter element has a filter medium body with a wall to be flowed through by a fluid to be purified in a radial direction relative to a longitudinal axis of the filter medium body. A circumferentially extending seal carrier is arranged at or adjacent to an end face of the filter medium body. A sealing element is supported at the seal carrier adjacent to a radial outer side of the filter medium body. A positioning element extends into the filter medium body and engages with form fit a correlated housing-associated counter positioning element of a filter housing when the round filter element is installed in the filter housing. The seal carrier separates flow-tightly a raw side of the round filter element from a clean side of the round filter element when the round filter element is installed in the filter housing.
    Type: Application
    Filed: April 17, 2019
    Publication date: October 10, 2019
    Inventors: Pascal Neef, Nadine Donauer, Philipp Hettkamp, Torsten Fritzsching, Pedro Miguel Pereira Madeira
  • Publication number: 20190270045
    Abstract: A round filter element has a filter medium body with a wall to be flowed through by a fluid to be purified radially relative to a longitudinal axis of the filter medium body. The filter medium body has a longitudinally extending cross-sectional shape in a direction transverse to the longitudinal axis. The filter medium body has a first end face and a second end that are axially oppositely positioned relative to each other in a direction along the longitudinal axis of the filter medium body. A first end disk and a second end disk are arranged at the first and second end faces, respectively, and have the same cross-sectional shape. The filter medium body has a twist by being twisted about the longitudinal axis such that the axially oppositely positioned first and second end faces of the filter medium body are angularly displaced relative to each other.
    Type: Application
    Filed: May 21, 2019
    Publication date: September 5, 2019
    Inventors: Nadine Donauer, Pascal Neef
  • Publication number: 20190224608
    Abstract: A filter element has a filter medium body and sealing material strips extending at least partially circumferentially in a circumferential direction of the filter medium body at an inflow side of the filter medium body and at least at one additional side of the filter medium body. A first one of the sealing material strips carries at least one holding tab. The at least one holding tab projects past the first sealing material strip. The at least one holding tab is embodied at least partially of a material of the first sealing material strip. A filter device with such a filter element arranged in a filter housing is provided.
    Type: Application
    Filed: April 4, 2019
    Publication date: July 25, 2019
    Inventors: Pascal Neef, Nadine Donauer
  • Patent number: 10316804
    Abstract: A filter housing (11) has at least one inlet (15) and at least one outlet (17) for the fluid. The filter element (10) includes a filter body of a filter medium (18).The filter element (10) is configured to be arranged in a filter housing (11) separating the at least one inlet (15) from the at least one outlet (17). An element axis (14) of the filter element (10) and a housing axis (25) of the filter housing (11) can be aligned parallel or axially to an installation direction (12) of the filter element into the filter housing. The filter element (10) may include at least one guide crosspiece (46, 48) which extends axially and radially outward on a peripheral exterior side (26), relative to the element axis (14), of the filter element (10).
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: June 11, 2019
    Assignee: MANN+HUMMEL GmbH
    Inventors: Robert Hasenfratz, Fabian Wagner, André Roesgen, Christian Thalmann, Frank Pflueger, Nadine Donauer, Werner Blossey, Mario Rieger, Andreas Weber, Pascal Neef
  • Publication number: 20190134546
    Abstract: A filter device having a base filter element has a filter housing with a longitudinally extended cross-sectional shape, wherein an inlet opening and an outlet opening are arranged in the filter housing on opposing sides.
    Type: Application
    Filed: October 16, 2017
    Publication date: May 9, 2019
    Inventors: Pascal Neef, Nadine Donauer, Philipp Hettkamp, Arthur Sudermann, Torsten Fritzsching, Mario Rieger, Michael Heim
  • Publication number: 20190070545
    Abstract: A filter device has an annular filter element with a filter medium body for radial fluid flow relative to a longitudinal axis. A sealing element arranged at an end face of the filter medium body seals relative to a housing component of a filter housing receiving the filter element. The sealing element has support walls delimiting a slit between them. The housing component has a receiving groove engaging across the sealing element and provided with opposed side walls. The housing component has a support rib projecting into slit. The support walls each have a first support surface at a side facing the slit and a second support surface at a side facing away from the slit. The side walls of the receiving groove are radially supported at the second support surfaces of the support walls. The support rib is supported radially at the first support surfaces of the support walls.
    Type: Application
    Filed: November 1, 2018
    Publication date: March 7, 2019
    Inventors: Nadine Donauer, Pedro Miguel Pereira Madeira
  • Publication number: 20190070548
    Abstract: An annular filter element has a filter medium body configured to be flowed through by a fluid to be purified in a radial direction. A sealing element is arranged at the end face of the filter medium body and extends circumferentially around the end face. The sealing element has at least one first sealing section comprising a massive and large cross-sectional area and one or more second sealing sections with a cross-sectional area that is at least partially reduced in comparison to the large cross-sectional area. The one or more second sealing sections include a second sealing section with a groove-type recess, wherein the groove-type recess extends at least approximately across a length of the second sealing section with the groove-type recess or across a portion of said length.
    Type: Application
    Filed: November 2, 2018
    Publication date: March 7, 2019
    Inventors: Andreas Franz, Torsten Fritzsching, Nadine Donauer, Marcel Holzwarth, Pedro Miguel Pereira Madeira, Christoph Wittmers, Manfred Winter, Joachim-Paul Krieger, Martin Gruber
  • Publication number: 20190070549
    Abstract: A filter element has a filter medium body enclosing an inwardly positioned flow space and having a center axis. A support frame is arranged at an inner side of the filter medium body. At least one circumferentially extending sealing ring lip is arranged at the filter medium body and projects axially in an axial direction relative to the center axis past an end face of the filter medium body. The sealing ring lip is designed to seal relative to a housing component of a receiving filter housing. A support ring is arranged at the end face of the filter medium body at a radial distance to the sealing ring lip in a radial direction relative to the center axis. The support ring is supported in the radial direction at the support frame and is formed as one piece together with the support frame.
    Type: Application
    Filed: November 2, 2018
    Publication date: March 7, 2019
    Inventors: Torsten Fritzsching, Pedro Miguel Pereira Madeira, Nadine Donauer, Andreas Franz, Marcel Holzwarth, Manfred Winter, Martin Gruber, Joachim-Paul Krieger
  • Patent number: D890316
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: July 14, 2020
    Assignee: MANN+HUMMEL GmbH
    Inventors: Pedro Miguel Pereira Madeira, Pascal Neef, Nadine Donauer