Patents by Inventor Roland Bley

Roland Bley 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).

  • Hydraulic system
    Patent number: 7159704
    Abstract: A hydraulic system in a motor vehicle for operating a friction clutch is described, including a slave cylinder acting upon a spring plate of the clutch, and a manually or automatically operated master cylinder acting upon the slave cylinder. The hydraulic system includes a two-stage spring device.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: January 9, 2007
    Assignee: Luk Lamellen Und Kupplungsbau Beteiligungs KG
    Inventors: Roland Bley, Matthias Zink
  • Hydraulic system
    Publication number: 20050006195
    Abstract: A hydraulic system in a motor vehicle for operating a friction clutch is described, including a slave cylinder acting upon a spring plate of the clutch, and a manually or automatically operated master cylinder acting upon the slave cylinder. The hydraulic system includes a two-stage spring device.
    Type: Application
    Filed: June 16, 2004
    Publication date: January 13, 2005
    Applicant: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Roland Bley, Matthias Zink