Patents by Inventor Timothy A. Leitzel

Timothy A. Leitzel 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).

  • Well block for metallurgical vessel
    Patent number: 6763981
    Abstract: A well block for use in a refractory lining in a metallurgical vessel for holding molten metal. The well block is comprised of a body formed of a refractory material. The body has a top surface, a bottom surface, an inner surface defining a bore that extends through the body from the top surface to the bottom surface, and a double-curved outer surface having at least one peak or valley formed thereon.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: July 20, 2004
    Assignee: North American Refractories Co.
    Inventors: Israel Peretz, Timothy A. Leitzel
  • Well block for metallurgical vessel
    Publication number: 20030201588
    Abstract: A well block for use in a refractory lining in a metallurgical vessel for holding molten metal. The well block is comprised of a body formed of a refractory material. The body has a top surface, a bottom surface, an inner surface defining a bore that extends through the body from the top surface to the bottom surface, and a double-curved outer surface having at least one peak or valley formed thereon.
    Type: Application
    Filed: April 29, 2002
    Publication date: October 30, 2003
    Applicant: North American Refractories Co.
    Inventors: Israel Peretz, Timothy A. Leitzel
  • High density ceramic metal composite exhibiting improved mechanical properties
    Patent number: 6103651
    Abstract: This invention is directed to ceramic metal composite useful as a refractory and having improved abrasion, corrosion, and oxidation resistance. The ceramic metal composite of the present invention is comprised of ceramic refractory aggregate, metal particulate, and a nonaqueous binder wherein the ceramic refractory aggregate, metal particulate, and binder residuals react to form a three-dimensional ceramic-metal matrix. The ceramic-metal matrix is further stabilized by bonds between the metal particulate, reaction products of the metal particulate, and the ceramic refractory aggregate.
    Type: Grant
    Filed: February 7, 1996
    Date of Patent: August 15, 2000
    Assignee: North American Refractories Company
    Inventor: Timothy A. Leitzel