Patents by Inventor Ralf Muhlhausen

Ralf Muhlhausen 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).

  • Connection
    Patent number: 6722346
    Abstract: A connection for a feed line at a feed pump pumping fuel out of a fuel tank, includes a nonreturn valve disposed in a horizontal portion of a connection stub. The connection stub is held on the feed pump by a latching device. The connection permits a particularly compact configuration of the feed pump.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: April 20, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventor: Ralf Mühlhausen
  • G-rotor pump
    Publication number: 20040037726
    Abstract: In a G-rotor pump for the conveyance of fuel in a motor vehicle, pockets are arranged in an external rotor. Dirt particles in the fuel can collect in the pockets. A wear of regions of the external rotor and of the internal rotor which roll on one another is consequently kept particularly low.
    Type: Application
    Filed: June 4, 2003
    Publication date: February 26, 2004
    Inventors: Sabine Burhenne, Cicero Constantin, Johannes Deichmann, Karsten Meiser, Ralf Muhlhausen
  • Connection
    Publication number: 20020096147
    Abstract: A connection for a feed line at a feed pump pumping fuel out of a fuel tank, includes a nonreturn valve disposed in a horizontal portion of a connection stub. The connection stub is held on the feed pump by a latching device. The connection permits a particularly compact configuration of the feed pump.
    Type: Application
    Filed: January 14, 2002
    Publication date: July 25, 2002
    Inventor: Ralf Muhlhausen