Patents by Inventor Achim Thomä

Achim Thomä 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).

  • Piston cylinder unit with a movement determination device
    Patent number: 6318524
    Abstract: A piston-cylinder unit includes a cylinder with a piston rod guide and a piston rod with a piston axially movably mounted in the cylinder so that the piston rod runs through a hole in the piston rod guide. A movement determination device comprising a transmitter portion and a receiver portion determine the movement of the piston from the travel time of waves generated by the transmitter portion. The movement determination device is arranged inside the piston rod guide, and waves reflected by the piston-piston rod component group are analyzed to determine the movement of this component group.
    Type: Grant
    Filed: January 14, 1999
    Date of Patent: November 20, 2001
    Assignee: Mannesmann Sachs AG
    Inventors: Dieter Lutz, Achim Thomä