Patents by Inventor J. Gregory Moriarity

J. Gregory Moriarity 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).

  • Heated die lips for controlling extruded polymer film thicknesses
    Patent number: 6273701
    Abstract: Lip die structures include thrust developing elements spaced along one lip at first points for flexing those first points toward and away from the other lip and controlled by a thickness monitor spaced downstream along the web being produced from the lip die. First heating elements are carried by the one lip aligned with the thrust developing elements and are controlled by the thickness monitor to selectively heat the first heating elements responsive to monitored decreases in web thickness. Second heating elements are also carried by the first lip intermediate the first heating elements and are controlled by the thickness monitor to actuate, selectively, the second heating elements responsive to monitored decreases in thickness of said web.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: August 14, 2001
    Inventor: J. Gregory Moriarity