Patents by Inventor Warren C. Hartz

Warren C. Hartz 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).

  • Caster roll core and shell assembly and method of manufacturing the same
    Patent number: 5823926
    Abstract: An improved caster roll core and shell assembly includes two overlays of stainless steel of different hardness which are deposited on the surface of the roll core, thus prolonging the life of the roll. The method for manufacturing the roll is also described.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: October 20, 1998
    Assignee: Norandal USA, Inc.
    Inventor: Warren C. Hartz
  • Method of manufacturing a caster roll core and shell assembly
    Patent number: 5598633
    Abstract: An improved caster roll core and shell assembly are manufactured wherein two overlays of stainless steel of different hardness are deposited on the surface of the roll core, thus prolonging the life of the roll.
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: February 4, 1997
    Assignee: Norandal USA, Inc.
    Inventor: Warren C. Hartz
  • Caster shell surface coating method
    Patent number: 5265332
    Abstract: A method of preventing galling between the shell and the core of a roll casting machine during the operation of a roll casting machine comprises coating by electroplating the inside diameter of the roll shell with a layer of chromium to a coating thickness in the range of 0.001 in. to 0.01 in. before the shell is shrink-fitted on the core.
    Type: Grant
    Filed: December 8, 1992
    Date of Patent: November 30, 1993
    Assignee: Norandal USA, Inc.
    Inventor: Warren C. Hartz