Patents Assigned to Skarpenord Control Systems a.s.
  • Single acting hydraulic actuator with variable return force
    Patent number: 4791856
    Abstract: A spring operated valve actuator with variable return force includes a compact spring mechanism with a short but very powerful closing characteristic. The energy provided by the spring mechanism is applied during the entire movement of the valve, with varying forces localized according to particular needs. The spring mechanism and a movable piston member are mechanically and drivingly interconnected by a variable reduction mechanism.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: December 20, 1988
    Assignee: Skarpenord Control Systems A/S
    Inventors: Edgar Heim, Kurt Sande, Staaland, Torbjrn
  • Device for coupling and simultaneously locking of two components both radially and axially
    Patent number: 4735439
    Abstract: A self-coupling flange for coupling and at the same time both axially and radially locking two components especially is suited for coupling of an actuator to a valve. The flange includes an upper member to be fixed to or incorporated into one component and a lower part member to be fixed to another component. An annular piston having a locking ring is movable into an inner axial opening in the lower member to move the two members from an offset position to an aligned position with respective sloping contact faces in abutment.
    Type: Grant
    Filed: October 15, 1986
    Date of Patent: April 5, 1988
    Assignee: Skarpenord Control Systems a.s.
    Inventor: Kurt Sande