Patents by Inventor Lars Buchmann

Lars Buchmann 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: 10919471
    Abstract: An apron for a vehicle is formed of a plurality of partial aprons. In order to prevent damage to the apron requiring a complete replacement of the apron, the novel apron has a plurality of partial aprons, wherein at least one of the partial aprons has a predetermined breaking point that is configured to break earlier than the other partial apron in case of mechanical stress.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: February 16, 2021
    Assignee: Siemens Mobility GmbH
    Inventors: Michael Kuczmik, Linda Schoenweiss, Konstantin Rubinchik, Fritz Leiker, Lars Buchmann, Dirk Jolas
  • Patent number: 8757114
    Abstract: A control valve for controlling pressure medium flows, including: a valve housing having a hollow construction and having at least one feed connection, at least two working connections, and at least one discharge connection; a control piston held displaceably inside the valve housing, through which, dependent on position, the feed connection can be connected via at least one pressure medium line to the one or to the other working connection, while the respectively other working connection is connected via at least one second pressure medium line to the discharge connection. The control piston has a piston cavity and the first pressure medium line includes a feed opening allocated to the feed connection and a discharge opening allocated to the working connections, with each of these openings opening into the piston cavity.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: June 24, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Jens Hoppe, Lars Buchmann
  • Publication number: 20130019830
    Abstract: A control valve, in particular a proportional valve for controlling a device for adjusting the rotation angle position of a camshaft with respect to a crankshaft of an internal combustion engine, including a hollow-cylindrical valve housing (1), which has a plurality of openings (2) that are arranged circumferentially in a radial plane for connecting to a pressure medium connection (P) and can be closed via a non-return valve (4) designed as a curved spring band (3). According to the invention, the openings (2) arranged in a radial plane are arranged at different angle distances to each other, and the shape and the rotation angle position of the curved spring band (3) serving as a non-return valve (4) is matched thereto.
    Type: Application
    Filed: April 5, 2011
    Publication date: January 24, 2013
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Jens Hoppe, Lars Buchmann
  • Publication number: 20120073535
    Abstract: A control valve for controlling pressure medium flows, including: a valve housing having a hollow construction and having at least one feed connection, at least two working connections, and at least one discharge connection; a control piston held displaceably inside the valve housing, through which, dependent on position, the feed connection can be connected via at least one pressure medium line to the one or to the other working connection, while the respectively other working connection is connected via at least one second pressure medium line to the discharge connection. The control piston has a piston cavity and the first pressure medium line includes a feed opening allocated to the feed connection and a discharge opening allocated to the working connections, with each of these openings opening into the piston cavity.
    Type: Application
    Filed: May 6, 2010
    Publication date: March 29, 2012
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Jens Hoppe, Lars Buchmann