Patents by Inventor Wolfgang Liebhart

Wolfgang Liebhart 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).

  • Patent number: 6957658
    Abstract: In a fuel tank installation including a fuel tank with an expansion volume, a filler neck connected to the fuel tank below a maximum fuel level of the tank for refueling the tank, a fill vent line for venting the fuel tank during refueling and an operating vent line for venting an expansion volume of the tank, the operating vent line extends within the fuel tank from the expansion volume of the fuel tank to a central penetration location and, at the central penetration location, through the wall of the tank together with the fill vent line.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: October 25, 2005
    Assignee: DaimlerChrysler AG
    Inventors: Barbara Aschoff, legal representative, Dorothea Aschoff, legal representative, Henning Aschoff, legal representative, J├╝rgen Kraus, Wolfgang Liebhart, Wolfgang Aschoff, deceased
  • Patent number: 6918416
    Abstract: In a fuel tank installation including a fuel tank with an expansion volume, a filler neck connected to the fuel tank for refueling, a fill vent line for venting the fuel tank during refueling and an operating vent line for venting the expansion volume of the tank, electrically operable valve means for blocking the operating vent line are arranged in a penetration area of the fuel tank where the operating vent line extends through the fuel tank.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: July 19, 2005
    Assignee: DaimlerChrysler AG
    Inventors: Wolfgang Aschoff, Jurgen Kraus, Wolfgang Liebhart
  • Publication number: 20050016625
    Abstract: In a fuel tank installation including a fuel tank with an expansion volume, a filler neck connected to the fuel tank for refueling, a fill vent line for venting the fuel tank during refueling and an operating vent line for venting the expansion volume of the tank, electrically operable valve means for blocking the operating vent line are arranged in a penetration area of the fuel tank where the operating vent line extends through the fuel tank.
    Type: Application
    Filed: June 20, 2003
    Publication date: January 27, 2005
    Inventors: Wolfgang Aschoff, Jurgen Kraus, Wolfgang Liebhart
  • Publication number: 20040256006
    Abstract: In a fuel tank installation including a fuel tank with an expansion volume, a filler neck connected to the fuel tank below a maximum fuel level of the tank for refueling the tank, a fill vent line for venting the fuel tank during refueling and an operating vent line for venting an expansion volume of the tank, the operating vent line extends within the fuel tank from the expansion volume of the fuel tank to a central penetration location and, at the central penetration location, through the wall of the tank together with the fill vent line.
    Type: Application
    Filed: June 20, 2003
    Publication date: December 23, 2004
    Inventors: Wolfgang Aschoff, Jurgen Kraus, Wolfgang Liebhart, Barbara Ascoff, Dorothea Aschoff, Henning Aschoff
  • Patent number: 6158803
    Abstract: A vehicle sun roof with a cover (3) intended to cover a roof opening (5) when in the closed position and to be both pushed upwards at its rear edge so as to be at least in the aeration position, and elevated relative to its closed position so as to be at least in the open position. Furthermore, the vehicle roof has a cover elevating and displacing device (3) along at least one guide integrated to the roof, which has also a bearing device extending from the rear edge area of the cover. In order for the roof to have a more stable bearing when in the open position and to keep, at the same time, the same smooth appearance as in the closed position, a bearing device (43) is provided which has an inactive position at or below the cover level (3).
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: December 12, 2000
    Assignee: Webasto Karosseriesysteme GmbH
    Inventors: Peter Reihl, Bernhard Wingen, Walter Schatzler, Francois De Gaillard, Erwin Kohout, Wolfgang Liebhart
  • Patent number: 5740842
    Abstract: A fuel tank arrangement for a motor vehicle. The arrangement includes a fuel tank containing fuel therein and having a gas space disposed above the fuel, and a venting device connected to the fuel tank. The venting device includes an activated charcoal filter and a venting conduit connecting the gas space to the activated charcoal filter for establishing gas communication therebetween. A stop valve is disposed in the venting conduit and is adapted to open gas communication between the gas space and the activated charcoal filter during refueling. Moreover, a fuel separator is disposed in the venting conduit for separating fuel from a gas flow through the venting conduit thereby yielding separated fuel.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: April 21, 1998
    Assignees: Walter Alfmeier GmbH + Co. Prazisions-Baugruppenelemente, Mercedes Benz AG
    Inventors: Josef Maier, Dieter Simon, Wolfgang Liebhart, Thomas Theuer, Klaus Muller, Rolf Walter, Dieter Scheurenbrandt, Manfred Weil, Wolfgang Freiwald, Gerhard Kiermaier