Patents by Inventor Ernst F. Matyi

Ernst F. Matyi 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 securing drum blanks on isostatic mandrel
    Patent number: 5138918
    Abstract: A method and apparatus for securing a drum blank for machining includes inserting a cylindrical mandrel within a bore of a drum blank, introducing a liquid support material into a space between the outer diameter of the mandrel and the inner diameter of the drum blank, and solidifying the support material. Once the support material is solidified, the drum blank is securely held to the mandrel. Machining operations can be performed by mounting the assembly in a lathe. After machining is completed, the support material may be treated so that the mandrel can be removed from the drum blank. The mandrel may then be recycled.
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: August 18, 1992
    Assignee: Xerox Corporation
    Inventors: Anthony A. Attardi, Alexander A. Antonelli, Stuart B. Berger, Frederick A. Warner, William G. Herbert, Paul J. Kaveny, Joseph Mammino, Ernst F. Matyi