Patents by Inventor Hans-Juergen Finke

Hans-Juergen Finke 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).

  • Hydraulic or pneumatic drive for actuating a fitting comprising a control valve or selector valve
    Patent number: 9528534
    Abstract: A safety circuit for valves actuated hydraulically via a positioning cylinder. The positioning cylinder in one embodiment is configured to be hydraulically or pneumatically depressurized in an emergency. The positioning cylinder has two cylinder chambers configured to be fluidically connected via a working line. A first and a second series-connected shut-off valve are provided in the working line. The positioning cylinder in another embodiment is configured to be hydraulically or pneumatically actuated in an emergency. The positioning cylinder has at least one first cylinder chamber configured, in an emergency, to be supplied with pressurized fluid via a first pressure medium flow path. A first and a second series-connected shut-off valve are provided in the first pressure medium flow path.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: December 27, 2016
    Assignees: Robert Bosch GmbH, E. ON Anlagenservice GmbH
    Inventors: Hans-Juergen Finke, Meik Brinkmann, Dirk Bracht
  • HYDRAULIC OR PNEUMATIC DRIVE FOR ACTUATING A FITTING COMPRISING A CONTROL VALVE OR SELECTOR VALVE
    Publication number: 20140026747
    Abstract: A safety circuit for valves actuated hydraulically via a positioning cylinder. The positioning cylinder in one embodiment is configured to be hydraulically or pneumatically depressurized in an emergency. The positioning cylinder has two cylinder chambers configured to be fluidically connected via a working line. A first and a second series-connected shut-off valve are provided in the working line. The positioning cylinder in another embodiment is configured to be hydraulically or pneumatically actuated in an emergency. The positioning cylinder has at least one first cylinder chamber configured, in an emergency, to be supplied with pressurized fluid via a first pressure medium flow path. A first and a second series-connected shut-off valve are provided in the first pressure medium flow path.
    Type: Application
    Filed: October 20, 2011
    Publication date: January 30, 2014
    Inventors: Hans-Juergen Finke, Meik Brinkmann, Dirk Bracht