Patents by Inventor Bernd Wehrum

Bernd Wehrum 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).

  • Publication number: 20070084784
    Abstract: The invention relates to a fuel delivery unit (2) wherein a space between a baffle pot (3) and a fuel pump (4) is filled with filter material (13) of a fuel filter (6). The baffle pot (3) is injection-molded onto the filter material (13) and is provided with a recess (14) for directly receiving the fuel pump (4). The fuel delivery unit (2) has an especially simple design and can be easily installed.
    Type: Application
    Filed: October 29, 2004
    Publication date: April 19, 2007
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Bernd Wehrum
  • Publication number: 20030175110
    Abstract: The invention relates to a pump having a pump casing, in which a pump chamber is formed, having an inlet leading to it and an outlet leading away from it. In the pump chamber there is a pump impeller, which is secured to a drive shaft, which can be driven in rotation and is mounted rotatably in bearings in the pump casing. Surfaces of the pump chamber which bear against the surfaces of the pump impeller and surfaces of the pump impeller which bear against the surfaces of the pump chamber have a coating of low thickness and high hardness which is applied by physical vapor deposition.
    Type: Application
    Filed: January 14, 2003
    Publication date: September 18, 2003
    Inventors: Christoph Schmidt, Bernd Wehrum
  • Publication number: 20020166809
    Abstract: In the case of a fine filter for a fuel feed unit of a motor vehicle, a filter element has at least two sections which surround the fuel feed unit concentrically. In the fitted state of the fine filter, the sections are fastened to the fuel feed unit and to a surge chamber. The filter element has proven particularly cost-effective and enables the use of a particularly small mesh width while requiring little space.
    Type: Application
    Filed: April 11, 2002
    Publication date: November 14, 2002
    Inventors: Bernd Wehrum, Gerd Weise