Patents by Inventor Mark O. Warman

Mark O. Warman 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).

  • Closures for metallurgical vessel pouring apertures
    Patent number: 4913404
    Abstract: The invention provides a closure member for a taphole or closure of a metal and slag containing vessel comprising a plug including a temperature reactive component rapidly expandable when subjected to heat, and a component softening under the effect of heat whereby, in use, the closure member expands and fits the taphole to form a block thereto.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: April 3, 1990
    Assignee: British Steel Corporation
    Inventor: Mark O. Warman