Patents by Inventor Wolfgang Schrenk

Wolfgang Schrenk 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).

  • POWER TRANSMISSION WHEEL WITH TORSIONAL DAMPERS
    Publication number: 20080283322
    Abstract: A power transmission wheel having a hub and a rim is disclosed. The hub has a central annular portion for operatively engaging a power transmitting shaft. The rim has an inner annular portion and an outer annular portion for operatively engaging a flexible power transmitting element. The central annular portion is disposed inside the inner annular portion with a rolling-element bearing therebetween. At least one hub blade is disposed radially between the inner and outer annular portions. At least one rim blade extends radially from one of the inner and outer annular portions towards the other of the inner and outer annular portions. The power transmission wheel has at least two elastomeric dampers. Each damper is interposed between one of the at least one hub blade and one of the at least one rim blade. An engine and vehicles using the power transmission wheels are also disclosed.
    Type: Application
    Filed: December 6, 2007
    Publication date: November 20, 2008
    Applicant: BRP-ROTAX GMBH & CO. KG
    Inventors: Stefan GRUBER, Christian BERGER, Norbert KORENJAK, Wolfgang SCHRENK, Thomas WEINZIERL, Johann WICKENHAUSER
  • Ignition housing for internal combustion engine
    Patent number: 7409949
    Abstract: A two-stroke internal combustion engine including a molded ignition housing connected to the crankcase of the engine which protects the electric generator of two-stroke internal combustion engine.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: August 12, 2008
    Assignee: BRP-Rotax GmbH & Co. KG
    Inventors: Günther Zauner, Ernst Mayringer, Johann Wickenhauser, Mario Schreiber, Thomas Weinzierl, Wolfgang Schrenk
  • IGNITION HOUSING FOR INTERNAL COMBUSTION ENGINE
    Publication number: 20080173170
    Abstract: A two-stroke internal combustion engine including a molded ignition housing connected to the crankcase of the engine which protects the electric generator of two-stroke internal combustion engine.
    Type: Application
    Filed: January 23, 2007
    Publication date: July 24, 2008
    Applicant: BRP-ROTAX GMBH & CO. KG
    Inventors: Gunther Zauner, Ernst Mayringer, Johann Wickenhauser, Mario Schreiber, Thomas Weinzierl, Wolfgang Schrenk
  • Watercraft having air/water separating device
    Patent number: 6769942
    Abstract: A watercraft comprises a hull, an internal combustion engine, a propulsion system, and an air/water separating device. The separating device comprises a container having an inlet port and an outlet port. The inlet port enables at least ambient air to enter the container and the outlet port is communicated to the air intake of the engine. The separating device has structure providing spaced apart generally vertical surfaces that define a plurality of elongated tortuous paths between the inlet and outlet ports. The tortuous paths have one or more angular portions and are positioned and configured such that the ambient air passes through the elongated tortuous paths so that water suspended in the air is separated from the air as the air passes through angular portions of the paths with the separated water flowing downwardly along the surfaces to a bottom of the container by gravity.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: August 3, 2004
    Assignee: Bombardier Recreational Products Inc.
    Inventors: Robert Bourret, Dominic Dagenais, Eric Ouellette, Gaétan Lecours, Andreas Winter, Wolfgang Schrenk