Patents by Inventor Dennis A. Acuncius

Dennis A. Acuncius 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).

  • Cast thermally stable high temperature nickel-base alloys and casting made therefrom
    Patent number: 4043810
    Abstract: A cast thermally stable high temperature nickel-base alloy characterized by superior oxidation resistance, sustainable hot strength and retention of ductility on aging is provided by maintaining the alloy chemistry within the composition molybdenum 13.7% to 15.5%; chromium 14.7% to 16.5%; carbon up to 0.1%, lanthanum in an effective amount to provide oxidation resistance up to 0.08%; boron up to 0.015%; manganese 0.3% to 1.0%; silicon 0.2% to 0.8; cobalt up to 2.0%; iron up to 3.0%; tungsten up to 1.0%; copper up to 0.4%; phosphorous up to 0.02%; sulfur up to 0.015%; aluminum 0.1% to 0.5% and the balance nickel while maintaining the Nv number less than 2.31.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: August 23, 1977
    Assignee: Cabot Corporation
    Inventors: Dennis A. Acuncius, Robert B. Herchenroeder, Russell W. Kirchner, William L. Silence