Patents by Inventor Klaus Doege

Klaus Doege 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).

  • Exhaust gas filter device
    Patent number: 9629938
    Abstract: The invention relates to an exhaust gas filter device for filtering contaminants out of exhaust gases, comprising: a filtering apparatus for filtering the exhaust gases, wherein the exhaust gases enter the filtering apparatus at a filter inlet surface, flow through the filtering apparatus and exit the filtering apparatus at a filter outlet surface; and a distribution channel for distributing the exhaust gases to be filtered along the filter inlet surface, and a collection channel for collecting the filtered exhaust gases exiting at the filter outlet surface; wherein the cross section of the collection channel increases in the direction of flow of the exhaust gases and/or the cross section of the distribution channel decreases in the direction of flow of the exhaust gases.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: April 25, 2017
    Assignee: TZ Technisches Zentrum Entwicklungs- und Handelsgesellschaft mbH
    Inventors: Wigand Fitzner, Klaus Döge
  • Exhaust Gas Filter Device
    Publication number: 20150165083
    Abstract: The invention relates to an exhaust gas filter device for filtering contaminants out of exhaust gases, comprising: a filtering apparatus for filtering the exhaust gases, wherein the exhaust gases enter the filtering apparatus at a filter inlet surface, flow through the filtering apparatus and exit the filtering apparatus at a filter outlet surface; and a distribution channel for distributing the exhaust gases to be filtered along the filter inlet surface, and a collection channel for collecting the filtered exhaust gases exiting at the filter outlet surface; wherein the cross section of the collection channel increases in the direction of flow of the exhaust gases and/or the cross section of the distribution channel decreases in the direction of flow of the exhaust gases.
    Type: Application
    Filed: July 26, 2013
    Publication date: June 18, 2015
    Inventors: Wigand Fitzner, Klaus Döge
  • Impeller and stator for fluid machines
    Publication number: 20040184914
    Abstract: Impeller and stator for use in a fluid machine and consisting, for reducing flow noise and for improving the stability of the characteristic curve between the flow input and output cross-sections, of a solid material matrix with a plurality of flow channels for deflecting the flow and increasing the pressure.
    Type: Application
    Filed: January 20, 2004
    Publication date: September 23, 2004
    Inventors: Klaus Doege, Uwe Franzke, Ralph Krause