Patents by Inventor John A. Kirpatrick

John A. Kirpatrick 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).

  • Method and apparatus for embossing the inside surface of a cup-shaped article
    Patent number: 4870846
    Abstract: A draw/emboss work station (600) of the invention includes emboss punch (594) moveable by a hydraulic system under control of a press slide (34). An emboss punch head (632) is moved downwardly into a cup-shaped article (626) to bring the article into a draw/emboss die (604). The emboss punch head (632) does not rotate while the draw die (604) does. The draw die (604) is allowed to rotate by thrust bearings (610 and 612). As the emboss punch head (632) pushes into the cup-shaped article (626) the downward rotational force is taken by the thrust bearing (612). As the emboss punch head (632) is withdrawn from the cup-shaped article (626) the upward rotational force is taken by the thrust bearing (610).
    Type: Grant
    Filed: March 15, 1988
    Date of Patent: October 3, 1989
    Assignee: Allied Products Corporation
    Inventors: John D. Budrean, John A. Kirpatrick