Patents by Inventor Charles J. Petry

Charles J. Petry 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).

  • Patent number: 4648438
    Abstract: Methods and apparatus for feeding and continuously casting molten metal are described in which inert gas is applied to the moving mold surfaces and to the entering metal for the protection or shrouding of the molten metal surface within the mold cavity from oxygen and other detrimental atmospheric gases. The shrouding is by means of inert gas injected into the mold through a semi-sealing nosepiece, or directed at the mold cavity and passing through the necessary slight gaps around the nosepiece. At the same time, such inert gas is further circulated by channeling or shielding the circulated gas for blanketing and diffusing of the inert gas along the moving mold surfaces for cleansing them of undesired accompanying gases, such as atmospheric oxygen, water vapor, sulphur dioxide, carbonic acid gas, etc. as the mold surfaces approach the nosepiece before entering the mold region.
    Type: Grant
    Filed: August 15, 1985
    Date of Patent: March 10, 1987
    Assignee: Hazelett Strip-Casting Corporation
    Inventors: Robert W. Hazelett, Charles J. Petry, Stanley W. Platek
  • Patent number: 4593742
    Abstract: Apparatus for feeding and continuously casting molten metal is described in which inert gas is applied to the moving mold surfaces and to the entering metal for the protection or shrouding of the molten metal surface within the mold cavity from oxygen and other detrimental atmospheric gases. The shrouding is by means of inert gas injected into the mold through a semi-sealing nosepiece, or directed at the mold cavity and passing through the necessary slight gaps around the nosepiece. At the same time, such inert gas is further circulated by channeling or shielding the circulated gas for blanketing and diffusing of the inert gas along the moving mold surfaces for cleansing them of undesired accompanying gases, such as atmospheric oxygen, water vapor, sulphur dioxide, carbonic acid gas, etc. as the mold surfaces approach the nosepiece before entering the mold region.
    Type: Grant
    Filed: July 17, 1984
    Date of Patent: June 10, 1986
    Assignee: Hazelett Strip-Casting Corporation
    Inventors: Robert W. Hazelett, Charles J. Petry, Stanley W. Platek
  • Patent number: 4298053
    Abstract: An endless casting belt for machines for continuous casting of metals, said casting belt being provided with a layer of an anti-adhesion agent and having at least in the "welding zone" a coating resistant to stress corrosion cracking when in contact with the liquid metal to be cast and with the said anti-adhesion agent.
    Type: Grant
    Filed: March 7, 1975
    Date of Patent: November 3, 1981
    Assignee: Metallurgie Hoboken-Overpelt
    Inventors: John Dompas, Charles J. Petry
  • Patent number: 4092155
    Abstract: A machine for the casting of metals having a moulding cavity formed by at least a moving casting belt and side dams, in which the said casting belt is made of mild killed steel containing between 0.2 and 0.8% by weight of titanium.
    Type: Grant
    Filed: July 18, 1974
    Date of Patent: May 30, 1978
    Assignee: Metallurgie Hoboken-Overpelt
    Inventors: John M. Dompas, Charles J. Petry