Patents by Inventor Paul-Josef NIESCHWIETZ

Paul-Josef NIESCHWIETZ 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: 11167338
    Abstract: A hydraulic cylinder comprising a cylinder, a piston element movably guided in the cylinder in a working direction and comprising an active surface, and a first opening for feeding a fluid into a cylinder chamber by the active surface. A working pressure of the fluid acting on the active surface drives the piston element in the working direction. The active surface includes a first partial surface and at least one second partial surface, the cylinder chamber being divided into a first sub chamber with the first opening by the first active surface and a second partial surface with a second opening by the second partial surface, and the partial surfaces are hydraulically separated from each other at least in a selectable operating mode.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: November 9, 2021
    Assignee: SMS group GmbH
    Inventors: Karsten Busch, Paul-Josef Nieschwietz, Frederik Knauf
  • Publication number: 20190217373
    Abstract: A hydraulic cylinder comprising a cylinder, a piston element movably guided in the cylinder in a working direction and comprising an active surface, and a first opening for feeding a fluid into a cylinder chamber by the active surface. A working pressure of the fluid acting on the active surface drives the piston element in the working direction. The active surface includes a first partial surface and at least one second partial surface, the cylinder chamber being divided into a first sub chamber with the first opening by the first active surface and a second partial surface with a second opening by the second partial surface, and the partial surfaces are hydraulically separated from each other at least in a selectable operating mode.
    Type: Application
    Filed: March 31, 2017
    Publication date: July 18, 2019
    Inventors: Karsten BUSCH, Paul-Josef NIESCHWIETZ, Frederik KNAUF