Patents by Inventor Denis A. Blank

Denis A. Blank 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).

  • Processing for grain-oriented silicon steel
    Patent number: 3976517
    Abstract: A process for producing electromagnetic silicon steel having a cube-on-edge orientation. The process includes the steps of: preparing an aluminum-bearing melt of silicon steel; casting the steel into an ingot; soaking the ingot at an elevated temperature; hot rolling the ingot into a bar of less than 2 inches in thickness; hot rolling the bar into a band of less than 0.2 inch in thickness, when the bar is at a temperature of from 1800 to 1900.degree.F; heat treating the steel; cold rolling the steel at a reduction of at least 75%; decarburizing the steel; and final texture annealing the steel.
    Type: Grant
    Filed: July 15, 1975
    Date of Patent: August 24, 1976
    Assignee: Allegheny Ludlum Industries, Inc.
    Inventors: Denis A. Blank, Edward C. Falkowski, Richard K. Pitler