Patents by Inventor Brij B. Maini

Brij B. Maini 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).

  • Method and apparatus for measuring fluid viscosity
    Patent number: 4890482
    Abstract: A transient flow capillary viscometer is provided for establishing a measure of the viscosity of a highly viscous test fluid. More particularly, a capillary tube filled with the test fluid is provided. The viscometer relies upon inducing a step change in the differential pressure across the ends of the capillary tube, which causes the fluid to flow therein. The resultant decrease in pressure drop as a function of time, i.e. the half-life of pressure decay, is monitored and provides an approximate measure indicative of the viscosity of the fluid.
    Type: Grant
    Filed: August 22, 1988
    Date of Patent: January 2, 1990
    Assignee: Alberta Oil Sands Technology and Research Authority
    Inventor: Brij B. Maini