Patents by Inventor Marcel Holzwarth

Marcel Holzwarth 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: 20150135666
    Abstract: A tank venting filter is provided with a housing extending in a direction of a longitudinal filter axis and provided with a bottom side and a topside opposite the bottom side. A filter element is arranged in the housing. The housing has an air inlet at the bottom side and an air outlet at the topside. The air inlet is provided in the housing transverse to the longitudinal filter axis. The housing has a housing bottom at the bottom side, wherein the housing bottom closes off a filter interior of the housing in a downward direction and is positioned at a spacing from the filter element. The housing bottom has an inner side facing the filter interior. The inner side ends in the air inlet and is positioned at least sectionwise at an obtuse angle relative to the longitudinal filter axis.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 21, 2015
    Inventors: Marcel Holzwarth, Michael Heim, Adriano Horiye
  • Publication number: 20150135956
    Abstract: A tank venting filter is provided with a housing defining a longitudinal filter axis that is vertically oriented in operation. The housing has a top end and a bottom end and is provided with an air inlet at the bottom end and with an air outlet at the top end. The air outlet is connectable to a tank. The housing is provided with a constriction above the air inlet. A filter element is disposed in the housing and fluidically arranged between the air inlet and the air outlet. The filter element is provided with a first filter. The constriction has an opening cross-section surface area that is less than 40% of an opening cross-section surface area of the air inlet.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 21, 2015
    Inventors: Marcel Holzwarth, Daniel Schmid, Florian Keller
  • Publication number: 20150113931
    Abstract: A filter element has a filter medium with a first end and a second end in an axial direction of the filter medium. A first end disk is connected to the first end and has an outflow opening. A second end disk is connected to the second end and has an engaging section, wherein the engaging section engages a counter engaging section of a filter housing of the filter element such that the filter element is received, secured against rotation, in the filter housing. The second end disk is provided with an aperture.
    Type: Application
    Filed: October 30, 2014
    Publication date: April 30, 2015
    Inventors: Frank Bartel, Marcel Holzwarth, Matthias Weller
  • Publication number: 20140157737
    Abstract: An oil mist separator for separating aerosol oil from an oil-laden gas has an impactor. The impactor has a nozzle device with at least one nozzle for gas to be freed from oil, wherein the at least one nozzle has a streaming region. The impactor further has at least one deflector body having a separating region for the oil, wherein the separating region is positioned in the streaming region of the at least one nozzle. The separating region has a surface structure that is monolithically formed with the at least one deflector body. The surface structure has elevations and recesses arranged alternatingly in all directions transversely to a main streaming direction of the at least one nozzle.
    Type: Application
    Filed: February 16, 2014
    Publication date: June 12, 2014
    Applicant: MANN+HUMMEL GMBH
    Inventors: Thomas Schleiden, Marcel Holzwarth, Heinz Fuchs, Juergen Kosicki