Patents by Inventor Charles D. Preusch

Charles D. Preusch 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 improving magnets
    Patent number: 4564400
    Abstract: A method for producing magnets from powdered magnetic alloy, and magnets having improved remanence and good coercive force; the method comprises aligning a particle charge of magnet alloy within a container, which aligning may be achieved by use of a pulsating magnetic field; consolidating the charge after alignment to a density in excess of 95% of theoretical density by cold or hot isostatic pressing, or a combination thereof.
    Type: Grant
    Filed: March 8, 1984
    Date of Patent: January 14, 1986
    Assignee: Crucible Materials Corporation
    Inventors: Kalatur S. V. L. Narasimhan, Charles D. Preusch