Patents by Inventor Erick Heimrich

Erick Heimrich 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 for the refining of steel
    Patent number: 4174212
    Abstract: A method of producing steel, particularly stainless steel with a high Cr content, having a C content of 0.03% or less which consists of firstly, lowering the C content of a molten steel bath into the preferred range of about 0.2% to about 0.4% by treating the bath with gaseous oxygen under atmospheric pressure, and secondly, subjecting the steel bath to the simultaneous effect of agitation, as by the passage of an inert gas upwardly there through, and a sub-atmospheric pressure until the C content is lowered into the desired low range.
    Type: Grant
    Filed: March 10, 1978
    Date of Patent: November 13, 1979
    Assignee: A. Finkl & Sons Co.
    Inventors: Hannsgearg G. Bauer, Manfred Walter, Erick Heimrich