Patents by Inventor James Emmett Grant, Jr.

James Emmett Grant, Jr. 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).

  • Surface determination and automatic milling in spinnerette manufacturing
    Patent number: 6161050
    Abstract: A numerically controlled milling machine is used to mill the surface of a coined spinnerette after punching and before broaching the holes in the spinnerette. A probe is mounted on the milling machine to obtain data points on the bumpy surface of the coined spinnerette. The low points in predetermined areas off of the protuberances on the bumpy surface of the coined spinnerette are detected. Splines connecting the low points in, e.g., concentric rings if the holes in the finished spinnerette will be in rings, are used to generate a representation of the finished surface. A spiral tool path is obtained using the representation of the finished surface and G-codes are generated to control the milling machine to move a tool along the tool path. After the coined spinnerette has been milled, conventional finishing, including broaching is performed.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: December 12, 2000
    Assignee: Eastman Chemical Company
    Inventors: Ernest Edward Jessee, Michael Ray McLaughlin, Timothy Martin Pinto, James Emmett Grant, Jr.
  • Surface determination and automatic milling in spinnerette manufacturing
    Patent number: 5733079
    Abstract: A numerically controlled milling machine is used to mill the surface of a coined spinnerette after punching and before broaching the holes in the spinnerette. A probe is mounted on the milling machine to obtain data points on the bumpy surface of the coined spinnerette. The low points in predetermined areas off of the protuberances on the bumpy surface of the coined spinnerette are detected. Splines connecting the low points in, e.g., concentric rings if the holes in the finished spinnerette will be in rings, are used to generate a representation of the finished surface. A spiral tool path is obtained using the representation of the finished surface and G-codes are generated to control the milling machine to move a tool along the tool path. After the coined spinnerette has been milled, conventional finishing, including broaching is performed.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: March 31, 1998
    Assignee: Eastman Chemical Company
    Inventors: Ernest Edward Jessee, Michael Ray McLaughlin, Timothy Martin Pinto, James Emmett Grant, Jr.