Patents by Inventor Oliver DWORNIK

Oliver DWORNIK 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: 11396894
    Abstract: In a hydraulic shield support system, a plurality of pressure intensifiers are respectively provided for a plurality of hydraulic props. Each pressure intensifier is operated to increase a system pressure to an increased pressure for supplying fluid at the increased pressure to a pressure chamber of the associated hydraulic prop. The plurality of pressure sensors measure the pressures of the fluid supplied to the respective hydraulic props. A control unit sets a plurality of desired pressures for the plurality of hydraulic props, and stops operation of the respective pressure intensifiers when the set desired pressure has been reached.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: July 26, 2022
    Assignee: Caterpillar Global Mining Europe GmbH
    Inventors: Oliver Dwornik, Franz-Heinrich Suilmann, Henner Rueschkamp
  • Publication number: 20200408226
    Abstract: In a hydraulic shield support system, a plurality of pressure intensifiers are respectively provided for a plurality of hydraulic props. Each pressure intensifier is operated to increase a system pressure to an increased pressure for supplying fluid at the increased pressure to a pressure chamber of the associated hydraulic prop. The plurality of pressure sensors measure the pressures of the fluid supplied to the respective hydraulic props. A control unit sets a plurality of desired pressures for the plurality of hydraulic props, and stops operation of the respective pressure intensifiers when the set desired pressure has been reached.
    Type: Application
    Filed: March 8, 2019
    Publication date: December 31, 2020
    Applicant: Caterpillar Global Mining Europe GmbH
    Inventors: Oliver DWORNIK, Franz-Heinrich SUILMANN, Henner RUESCHKAMP