Patents by Inventor Roger Kollmeier

Roger Kollmeier 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: 9429221
    Abstract: Steering pinions and methods for producing the same are described. The steering pinion has a toothed section for meshing with a gear rack and a connection section for connecting to a steering shaft. The toothed section includes a toothed part and the connection section includes a connection part. The toothed part and the connection part are pressed together in a rotationally fixed manner.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: August 30, 2016
    Assignee: THYSSENKRUPP PRESTA AKTIENGESELLSCHAFT
    Inventors: Frank Birkwald, Christian Ziegler, Hubert Heck, Paul Schwarzhans, Roger Kollmeier, Aksel Maier, Kai Vohwinkel
  • Publication number: 20140137682
    Abstract: Steering pinions and methods for producing the same are described. The steering pinion has a toothed section for meshing with a gear rack and a connection section for connecting to a steering shaft. The toothed section includes a toothed part and the connection section includes a connection part. The toothed part and the connection part are pressed together in a rotationally fixed manner.
    Type: Application
    Filed: July 13, 2012
    Publication date: May 22, 2014
    Applicant: THYSSENKRUPP PRESTA AKTIENGESELLSCHAFT
    Inventors: Frank Birkwald, Christian Ziegler, Hubert Heck, Paul Schwarzhans, Roger Kollmeier, Aksel Maier, Kai Vohwinkel
  • Publication number: 20100132816
    Abstract: The invention relates to a check valve for a hydraulic power-assisted steering system, with a valve housing, into which a movable valve member is inserted, wherein the valve member interacts with sealing effect with a valve seat, and has lateral guide elements for guiding the valve member in the valve housing, wherein the movable valve member is a shaped metal part with uniform wall thickness and at least three guide elements having a constant width in the circumferential direction.
    Type: Application
    Filed: November 17, 2009
    Publication date: June 3, 2010
    Applicant: ThyssenKrupp Presta AG
    Inventors: Peter Hölzle, Roger Kollmeier, Niels Worringen
  • Publication number: 20090199707
    Abstract: A hydraulic working cylinder of a steering system for a motor vehicle, wherein a piston having a piston rod is displaceably disposed in the working cylinder and the working cylinder has a working chamber into which leads at least one line connection for supply and discharge of pressurized medium. A ring is disposed in the working chamber, and a groove is provided in an inner wall of the working cylinder and is in communication with the line connection. The groove extends from the line connection to an upper region of the working chamber, and the ring closes off the groove relative to the working chamber with the exception of an upper region of the groove that is disposed adjacent to the upper region of the working chamber.
    Type: Application
    Filed: March 14, 2007
    Publication date: August 13, 2009
    Inventor: Roger Kollmeier