Patents by Inventor Kai Knickmann

Kai Knickmann 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).

  • Exchangeable filter insert
    Patent number: 8501002
    Abstract: The invention concerns a filter insert (1) that is provided as an exchangeable insert in a filter, in particular an oil filter, fuel filter or the like of an internal combustion engine. The filter comprises a filter housing (3) that can be separated along a separating plane (2) and the exchangeable filter insert (1) extending in an axial direction (18). Two housing parts (4, 5) of the filter housing (3) are sealed relative to one another along the separating plane (2) by means of a seal (6). The seal (6) is secured slidably and captively in the axial direction (18) on the filter insert (1).
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: August 6, 2013
    Assignee: Mann + Hummel GmbH
    Inventors: Kai Knickmann, Ralf Blum, Wolfgang Cedzich, Andreas Franz, Roland Hartmann, Herbert Jainek, Gunnar-Marcel Klein, Markus Kolczyk, Thomas Petschl, Steffen Ritter, Mathias Schuster, Birgit Herbst, Ralf Kaiser, Uwe Kaiser, Joachim Kegel, Hans-Günter Wächter
  • Exchangeable Filter Insert
    Publication number: 20100170842
    Abstract: The invention concerns a filter insert (1) that is provided as an exchangeable insert in a filter, in particular an oil filter, fuel filter or the like of an internal combustion engine. The filter comprises a filter housing (3) that can be separated along a separating plane (2) and the exchangeable filter insert (1) extending in an axial direction (18). Two housing parts (4, 5) of the filter housing (3) are sealed relative to one another along the separating plane (2) by means of a seal (6). The seal (6) is secured slidably and captively in the axial direction (18) on the filter insert (1).
    Type: Application
    Filed: November 29, 2007
    Publication date: July 8, 2010
    Applicant: MANN+HUMMEL GMBH
    Inventors: Kai Knickmann, Ralf Blum, Wolfgang Cedzich, Andreas Franz, Roland Hartmann, Herbert Jainek, Gunnar-Marcel Klein, Markus Kolczyk, Thomas Petschl, Steffen Ritter, Mathias Schuster, Birgit Herbst, Ralf Kaiser, Uwe Kaiser, Joachim Kegel, Hans-Guenter Waechter
  • Self-venting filter element for a fuel filter arrangement
    Patent number: 7014766
    Abstract: A filter element (4; 4?) for a fuel filter arrangement has a first end disk (15; 15?) and a second end disk (16; 16?) between which extends a return line (18; 35), each opening into an outlet opening (24; 24?) on the outside of the filter element (4; 4?). The fuel filter housing (2) for such a filter element (4; 4?) has a fuel connection (11) which opens in a guide tube (10) above a bottom area (7, 8) of the filter housing (2). A first filter sealing area (22) cooperates with a first housing sealing area (9) and a second filter sealing area (21) cooperates with a second housing sealing area (12).
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: March 21, 2006
    Assignee: Mann & Hummel GmbH
    Inventors: Klaus Mack, Kai Knickmann
  • Self-venting filter element for a fuel filter arrangement
    Publication number: 20040211720
    Abstract: A filter element (4; 4′) for a fuel filter arrangement has a first end disk (15; 15′) and a second end disk (16; 16′) between which extends a return line (18; 35), each opening into an outlet opening (24; 24′) on the outside of the filter element (4; 4′). The fuel filter housing (2) for such a filter element (4; 4′) has a fuel connection (11) which opens in a guide tube (10) above a bottom area (7, 8) of the filter housing (2). A first filter sealing area (22) cooperates with a first housing sealing area (9) and a second filter sealing area (21) cooperates with a second housing sealing area (12).
    Type: Application
    Filed: January 23, 2004
    Publication date: October 28, 2004
    Applicant: MANN & HUMMEL GMBH
    Inventors: Klaus Mack, Kai Knickmann