Patents by Inventor Markus Dropmann

Markus Dropmann 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 evaluation unit for determining the piston position
    Patent number: 9778015
    Abstract: The present disclosure relates to a piston-cylinder unit with a cylinder jacket and a piston rod longitudinally shiftably guided in the cylinder jacket as well as an evaluation unit which determines the position of the piston rod with respect to the cylinder jacket by the intrinsic electrical properties of an interconnection of cylinder jacket, piston rod and piston, wherein the piston rod is short-circuited against the cylinder or the cylinder head in a manner suitable for high frequencies via one or more contact elements in the region of the exit opening of the piston rod out of the cylinder head.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: October 3, 2017
    Assignee: Liebherr-Elektronik GmbH
    Inventors: Markus Dropmann, Alfred Engler
  • PISTON-CYLINDER UNIT WITH EVALUATION UNIT FOR DETERMINING THE PISTON POSITION
    Publication number: 20150114220
    Abstract: The present disclosure relates to a piston-cylinder unit with a cylinder jacket and a piston rod longitudinally shiftably guided in the cylinder jacket as well as an evaluation unit which determines the position of the piston rod with respect to the cylinder jacket by the intrinsic electrical properties of an interconnection of cylinder jacket, piston rod and piston, wherein the piston rod is short-circuited against the cylinder or the cylinder head in a manner suitable for high frequencies via one or more contact elements in the region of the exit opening of the piston rod out of the cylinder head.
    Type: Application
    Filed: October 31, 2014
    Publication date: April 30, 2015
    Inventors: Markus Dropmann, Alfred Engler