Patents by Inventor Oliver Retzlaff

Oliver Retzlaff 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: 6945745
    Abstract: An industrial truck has a chassis (1), a lifting frame (5), a load holding device (10) that can move vertically along the lifting frame (5), and at least one movement device to move the lifting frame (5) relative to the chassis (1). The acceleration and/or the speed of movement of the lifting frame (5) that can be achieved by the movement device can be controlled as a function of at least one operating parameter of the industrial truck. The operating parameter is measured at least approximately continuously. One operating parameter is the current lifting height of the load holding device (10). An additional operating parameter is the weight of a load that is being held by the load holding device (10).
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: September 20, 2005
    Assignee: Still Wagner GmbH & Co. KG
    Inventor: Oliver Retzlaff
  • Publication number: 20030206793
    Abstract: An industrial truck has a chassis (1), a lifting frame (5), load holding means (10) that can move vertically along the lifting frame (5), and at least one movement device to move the lifting frame (5) relative to the chassis (1). The acceleration and/or the speed of movement of the lifting frame (5) that can be achieved by the movement device can be controlled as a function of at least one operating parameter of the industrial truck. The operating parameter is measured at least approximately continuously. One operating parameter is the current lifting height of the load holding means (10). An additional operating parameter is the weight of a load that is being held by the load holding means (10).
    Type: Application
    Filed: May 1, 2003
    Publication date: November 6, 2003
    Inventor: Oliver Retzlaff