Patents by Inventor Ludger Hermanns

Ludger Hermanns 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).

  • Pump element, hydraulic block with pump element, and installation method
    Patent number: 8622718
    Abstract: The invention relates to a pump element for installation in a pump bore of a hydraulic block, which includes a pump plunger, a restoring spring for the pump plunger, and an inlet valve having an inlet valve cover, in which a closing spring and a closing body are arranged. According to the invention, the inlet valve cover has a high pressure sealing section, which rests against the valve seat element in the axial direction with spring force support provided by the restoring spring. The valve seat element is positively connected to the pump plunger at least before installation of the pump element in the pump bore. Centering elements are provided for centering the inlet valve cover relative to the valve seat element. The invention further relates to a hydraulic block and to an installation method.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: January 7, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Nicole Kathan, Ludger Hermanns, Marc Zimmermann
  • PUMP ELEMENT, HYDRAULIC BLOCK WITH PUMP ELEMENT, AND INSTALLATION METHOD
    Publication number: 20100276234
    Abstract: The invention relates to a pump element for installation in a pump bore of a hydraulic block, which includes a pump plunger, a restoring spring for the pump plunger, and an inlet valve having an inlet valve cover, in which a closing spring and a closing body are arranged. According to the invention, the inlet valve cover has a high pressure sealing section, which rests against the valve seat element in the axial direction with spring force support provided by the restoring spring. The valve seat element is positively connected to the pump plunger at least before installation of the pump element in the pump bore. Centering elements are provided for centering the inlet valve cover relative to the valve seat element. The invention further relates to a hydraulic block and to an installation method.
    Type: Application
    Filed: September 24, 2008
    Publication date: November 4, 2010
    Inventors: Nicole Kathan, Ludger Hermanns, Marc Zimmermann