Patents by Inventor Robert H. Erickson

Robert H. Erickson 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 forming permanent magnets within a motor yoke
    Patent number: 4713877
    Abstract: A method of forming a 360.degree. ceramic permanent magnet by utilizing a hot isostatic pressing technique on a ceramic preform paterial cylindrically formed and placed inside a deformable metal housing having an inner diameter that is approximately the same but only slightly larger than the outer diameter of the preform. A solid steel mandrel is provided in the center diameter of the hollow cylindrical preform. Crystal alignment and densification of the ceramic material is achieved by using the hot isostatic pressing technique applied to the outside of the housing, preform and mandrel assembly.
    Type: Grant
    Filed: February 5, 1986
    Date of Patent: December 22, 1987
    Assignee: Ford Motor Company
    Inventors: Edward H. Abbott, Robert H. Erickson, William F. Horn