Patents by Inventor Gerhard Elfinger

Gerhard Elfinger 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: 6499562
    Abstract: A muffler for pulsating gases, especially exhaust gases of internal combustion engines, comprises a housing into which an inlet conduit enters, from which at least on outlet conduit exits and which is divided by at least one partition wall into at least two chambers. In this muffler the flow cross section of a flow path connecting two chambers and/or of an outlet conduit can be varied by means of an adjustable closure element. An actuating element acting on the closure element is provided in the region of the exit cross section of the inlet conduit.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: December 31, 2002
    Assignee: Zeuna-Staerker GmbH & Co. KG
    Inventors: Gerhard Elfinger, Wolfgang Hahnl, Friedrich Wellner, Andreas Mayr, Klaus Spindler, Thomas Koehler, Hans Bussmann