Patents by Inventor Michael RYGAARD HANSEN

Michael RYGAARD HANSEN 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).

  • Apparatus and methods for the control of hydraulic actuators
    Patent number: 10830257
    Abstract: Methods of controlling an actuator during operation using a hydraulic circuit, and related apparatus, are described. The circuit has a first path section along which fluid is supplied to a first chamber of the actuator using a first valve and a second path section along which fluid is extracted from a second chamber of the actuator using a second valve. Pressure data associated with a pressure of the fluid supplied to the first side of the actuator are obtained, a pilot pressure pPilot is produced based on the data and the first and second valves are configured based on the pilot pressure pPilot.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: November 10, 2020
    Assignee: National Oilwell Varco Norway AS
    Inventors: Michael Rygaard Hansen, Jesper Kirk Sørensen
  • APPARATUS AND METHODS FOR THE CONTROL OF HYDRAULIC ACTUATORS
    Publication number: 20180180066
    Abstract: Methods of controlling an actuator during operation using a hydraulic circuit, and related apparatus, are described. The circuit has a first path section along which fluid is supplied to a first chamber of the actuator using a first valve and a second path section along which fluid is extracted from a second chamber of the actuator using a second valve. Pressure data associated with a pressure of the fluid supplied to the first side of the actuator are obtained, a pilot pressure pPilot is produced based on the data and the first and second valves are configured based on the pilot pressure pPilot.
    Type: Application
    Filed: June 8, 2016
    Publication date: June 28, 2018
    Applicant: National Oilwell Varco Norway AS
    Inventors: Michael RYGAARD HANSEN, Jesper Kirk SØRENSEN,