Patents by Inventor Volkmar Delitzsch

Volkmar Delitzsch 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 of visualizing the flow pattern of a fluid using optically active, radioactive or chemically active particles of desired density
    Patent number: 4264330
    Abstract: The invention is concerned with particles consisting of a compound of an active material and foamed plastic, the mean density of the particles being adjustable to the special value of a foregiven fluid such that they can float in the fluid. Particles of this kind can be used (as "tracer" particles) for disturbance-free visualization of fluid flows and for suspending active materials of higher density than that of the fluid homogeneously in the fluid volume.Concerning the first usage, the flow pattern of a flowing aqueous fluid is visualized by spacedly suspending in the fluid approximately spherical particles of a foamed plastic labeled with zinc sulfide phosphor and having a diameter smaller than 0.5 millimeters and by exciting the phosphor with pulses from a UV laser.
    Type: Grant
    Filed: November 28, 1979
    Date of Patent: April 28, 1981
    Inventors: Dieter Schmidt, Volkmar Delitzsch