Patents by Inventor Lauri Karhu

Lauri Karhu 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 for measuring particle size distribution
    Patent number: 5578771
    Abstract: Particle size distribution of a flowing material that is composed of solid particles in a carrier fluid is measured employing a measuring element that comprises first and second measuring members having respective confronting measuring surfaces of predetermined area and a mechanism for causing relative movement of the measuring members toward and away from each other. The area of each measuring surface is at least 0.008-0.5 cm.sup.2 per percent solids of the flowing material.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: November 26, 1996
    Assignee: Outokumpu Mintec OY
    Inventor: Lauri Karhu