Patents by Inventor Nguyet-Minh Cao

Nguyet-Minh Cao 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).

  • Electromechanical friction brake
    Patent number: 8448757
    Abstract: The invention relates to an electromechanical friction brake, for example in the form of a disc brake having an electromechanical actuation device. The electric motor of the actuation device presses a frictional brake lining against a brake disc by means of a reduction gearbox and a ball ramp mechanism. The actuation device is supported by a spring washer that is pretensioned so strongly that when the disc brake is released it acts on a segment with a falling spring characteristic; that is, a spring force exerted by the spring washer on the frictional brake lining increases with increasing tension of the disc brake.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: May 28, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Herbert Vollert, Bertram Foitzik, Willi Nagel, Bernd Goetzelmann, Dirk Hofmann, Nguyet-Minh Cao
  • ELECTROMECHANICAL FRICTION BRAKE
    Publication number: 20100243387
    Abstract: The invention relates to an electromechanical friction brake, for example in the form of a disc brake having an electromechanical actuation device. The electric motor of the actuation device presses a frictional brake lining against a brake disc by means of a reduction gearbox and a ball ramp mechanism. The actuation device is supported by a spring washer that is pretensioned so strongly that when the disc brake is released it acts on a segment with a falling spring characteristic; that is, a spring force exerted by the spring washer on the frictional brake lining increases with increasing tension of the disc brake.
    Type: Application
    Filed: November 14, 2008
    Publication date: September 30, 2010
    Inventors: Herbert Vollert, Chi-Thuan Cao, Nguyet-Minh Cao, Bertram Foitzik, Willi Nagel, Bernd Goetzelmann, Dirk Hofmann