Patents by Inventor Justin G. Modic

Justin G. Modic 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: 4545232
    Abstract: An apparatus is provided for performing multiple operations on a conventional open-die forge press, and includes a rotatable top punch assembly and stationary bottom die assembly. The top punch assembly includes a mounting fixture secured to the press crosshead, a holder plate rotatably mounted on the fixture, a plurality of punches extending downwardly from the holder plate, and motor means for indexing the punches sequentially into forging position over the bottom die assembly. A method is also provided for making valve pots, including upsetting a heated metal block in a split die and punching a hole through the block, the improvement in which during the upsetting step a vertically reciprocable member is extended so as to close a bottom opening in the split die, in order that the split die will function as a closed die, and during the punching step the reciprocable member is retracted so as to allow a punch-core to fall through said opening.
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: October 8, 1985
    Assignee: United States Steel Corporation
    Inventors: Wayne A. Martin, Justin G. Modic
  • Patent number: 4497194
    Abstract: An apparatus is provided for performing multiple operations on a conventional open-die forge press, and includes a rotatable top punch assembly and stationary bottom die assembly. The top punch assembly includes a mounting fixture secured to the press crosshead, a holder plate rotatably mounted on the fixture, a plurality of punches extending downwardly from the holder plate, and motor means for indexing the punches sequentially into forging position over the bottom die assembly. A method is also provided for making valve pots, including upsetting a heated metal block in a split die and punching a hole through the block, the improvement in which during the upsetting step a vertically reciprocable member is extended so as to close a bottom opening in the split die, in order that the split die will function as a closed die, and during the punching step the reciprocable member is retracted so as to allow a punch-core to fall through said opening.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: February 5, 1985
    Assignee: United States Steel Corporation
    Inventors: Wayne A. Martin, Justin G. Modic