Patents Assigned to Rotator AS
  • Flow-measuring valve device and method
    Patent number: 7159602
    Abstract: A flow measuring valve device (1) for fluid, the flow measuring valve (1) comprising a first restriction (48) and a second restriction (76) connected in series with the first restriction (48), the flow rates of said restrictions (48, 76) being unequally dependent on the viscosity of the fluid, and a method for determining the viscosity of the fluid by means of the device.
    Type: Grant
    Filed: November 28, 2002
    Date of Patent: January 9, 2007
    Assignee: Rotator AS
    Inventor: Morten Halvorsen