Patents by Inventor Torsten Fritzsching

Torsten Fritzsching 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: 10960735
    Abstract: A cabin air filter is provided with a filter medium and a filter element frame that frames the filter medium and is configured to attach the cabin air filter to a filter housing. The filter element frame is provided with at least one engagement element configured to engage pivotably at least one receiving element of the filter housing for pivoting the cabin air filter relative to the filter housing about a pivot axis. The filter element frame also has at least one snap hook that locks with at least one locking element of the filter housing for blocking pivoting of the cabin air filter relative to the filter housing at least in a first direction about the pivot axis.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: March 30, 2021
    Assignee: Mann+Hummel GmbH
    Inventors: Markus Nefzer, Torsten Fritzsching, Mario Rieger, Dominik Haider, Stephan Kessler
  • Patent number: 10946324
    Abstract: A round filter element is provided with an elongate filter medium body with a wall structure flowed through by a fluid to be purified in a flow direction radially relative to a longitudinal axis of the filter medium body. A seal support for a sealing element is arranged adjacent to a radially outwardly positioned outer wall of the wall structure of the filter medium body and adjacent to an end face of the filter medium body. The seal support has across a major portion of its circumference a constant radial spacing relative to the outer wall of the wall structure of the filter medium body. The seal support has at least one radially inwardly oriented indentation located at a longitudinal side of the filter medium body and provided with a reduced radial spacing relative to the outer wall of the wall structure of the filter medium body.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: March 16, 2021
    Assignee: Mann+Hummel GmbH
    Inventors: Torsten Fritzsching, Pascal Neef, Robert Hasenfratz, Christoph Wittmers
  • 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
  • Publication number: 20210069630
    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: Application
    Filed: November 17, 2020
    Publication date: March 11, 2021
    Inventors: Pascal Neef, Torsten Fritzsching, Philipp Hettkamp, Arthur Sudermann, Friedrich Kupfer, Mario Rieger
  • Publication number: 20210069631
    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. A closed end disk is arranged at a first end of the filter element and closes off the interior of the filter element. An end disk with an opening to the interior of the filter element is arranged at a second end of the filter element oppositely positioned to the first end viewed in direction of the longitudinal axis. The closed end disk has a hollow pin projecting into the interior of the filter element in direction of the longitudinal axis. The filter system has a housing for receiving the exchangeable filter element with a housing part closable by a cover. The hollow pin of the closed end disk can be pushed onto a pin of the housing part.
    Type: Application
    Filed: November 18, 2020
    Publication date: March 11, 2021
    Inventors: Pascal Neef, Torsten Fritzsching, Philipp Hettkamp
  • 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: 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
  • Publication number: 20190344641
    Abstract: A cabin air filter is provided with a filter medium and a filter element frame that frames the filter medium and is configured to attach the cabin air filter to a filter housing. The filter element frame is provided with at least one engagement element configured to engage pivotably at least one receiving element of the filter housing for pivoting the cabin air filter relative to the filter housing about a pivot axis. The filter element frame also has at least one snap hook that locks with at least one locking element of the filter housing for blocking pivoting of the cabin air filter relative to the filter housing at least in a first direction about the pivot axis.
    Type: Application
    Filed: July 24, 2019
    Publication date: November 14, 2019
    Inventors: Markus Nefzer, Torsten Fritzsching, Mario Rieger, Dominik Haider, Stephan Kessler
  • Publication number: 20190308126
    Abstract: A round filter element is provided with an elongate filter medium body with a wall structure flowed through by a fluid to be purified in a flow direction radially relative to a longitudinal axis of the filter medium body. A seal support for a sealing element is arranged adjacent to a radially outwardly positioned outer wall of the wall structure of the filter medium body and adjacent to an end face of the filter medium body. The seal support has across a major portion of its circumference a constant radial spacing relative to the outer wall of the wall structure of the filter medium body. The seal support has at least one radially inwardly oriented indentation located at a longitudinal side of the filter medium body and provided with a reduced radial spacing relative to the outer wall of the wall structure of the filter medium body.
    Type: Application
    Filed: April 17, 2019
    Publication date: October 10, 2019
    Inventors: Torsten Fritzsching, Pascal Neef, Robert Hasenfratz, Christoph Wittmers
  • 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
  • Patent number: 10391841
    Abstract: A cabin air filter is provided with a filter medium and a filter element frame that frames the filter medium and is configured to attach the cabin air filter to a filter housing. The filter element frame is provided with at least one engagement element configured to engage pivotably at least one receiving element of the filter housing for pivoting the cabin air filter relative to the filter housing about a pivot axis. The filter element frame also has at least one snap hook that locks with at least one locking element of the filter housing for blocking pivoting of the cabin air filter relative to the filter housing at least in a first direction about the pivot axis.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: August 27, 2019
    Assignee: MANN+HUMMEL GmbH
    Inventors: Markus Nefzer, Torsten Fritzsching, Mario Rieger, Dominik Haider, Stephan Kessler
  • 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: 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
  • Publication number: 20190060816
    Abstract: A hollow filter element for insertion into an openable filter housing has a filter medium body configured as a hollow body surrounding an inwardly positioned flow space. At least one end disk is connected to the filter medium body and covers an axial end face of the filter medium body. A positioning element is arranged at the at least one end disk and interacts with a housing-associated blade of the filter housing. The positioning element receives the housing-associated blade with form fit in two different transverse directions relative to the longitudinal axis of the filter medium body. The positioning element has a positioning recess.
    Type: Application
    Filed: November 1, 2018
    Publication date: February 28, 2019
    Inventors: Christoph Wittmers, Nadine Donauer, Andreas Franz, Marcel Holzwarth, Pedro Miguel Pereira Madeira, Joachim-Paul Krieger, Martin Gruber, Manfred Winter, Torsten Fritzsching
  • Publication number: 20180050296
    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: Application
    Filed: October 13, 2017
    Publication date: February 22, 2018
    Inventors: Torsten Fritzsching, Pedro Miguel Pereira Madeira, Andreas Franz, Nadine Donauer, Martin Gruber, Joachim-Paul Krieger, Marcel Holzwarth, Manfred Winter
  • Publication number: 20180036665
    Abstract: A filter element is provided with a support body and one or more filter medium bodies arranged on the support body. One or more guide elements are arranged on the support body and guide the filter element in an insertion direction in a receiving filter housing, when the filter element is inserted in the insertion direction into the receiving filter housing. A filter device with such a filter element and a filter housing is provided. The filter housing has a counter guide element engaging the one or more guide elements of the filter element.
    Type: Application
    Filed: October 13, 2017
    Publication date: February 8, 2018
    Inventors: Torsten Fritzsching, Robert Hasenfratz, Andreas Franz, Sascha Bauer
  • Publication number: 20180036667
    Abstract: A secondary element with a first open end and a second end positioned opposite the first end has a filter medium arranged about a longitudinal axis of the secondary element and extending from the first open end to the second end. A closed end disc is disposed at the second end and seal-tightly closes off the second end. The closed end disc has a first connecting element that, for an intended installation of the secondary element in a filter system, is configured to interact with a second connecting element of a support tube of the filter system to secure the secondary element on the support tube. A filter system with such a secondary element has a support tube provided with a complementary second connecting element, wherein the secondary element is secured on the support tube by the first and second connecting elements engaging each other.
    Type: Application
    Filed: October 19, 2017
    Publication date: February 8, 2018
    Inventors: Pascal Neef, Joachim Schuldt, Torsten Fritzsching, Prabhu Kumaresan, Mridul Sharma