Patents by Inventor Thomas L. Yount

Thomas L. Yount 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).

  • Vacuum system for controlling pressure in a polyester process
    Patent number: 5753190
    Abstract: The present invention discloses a polymerization system having at least two reaction chambers wherein vacuum is used to remove vapors therefrom comprising a single vacuum system for supplying vacuum in increasing amounts to successive reaction chambers. Also disclosed is a polymerization process having at least first and second reaction chambers in which the pressure is decreased successively from said first chamber to a final chamber.
    Type: Grant
    Filed: July 21, 1995
    Date of Patent: May 19, 1998
    Assignee: Eastman Chemical Company
    Inventors: Douglas M. Haseltine, Thomas L. Yount, Jimmy L. Ryans
  • Vaccum system for controlling pressure in a polyester process
    Patent number: 5466765
    Abstract: The present invention discloses a polymerization system having at least two reaction chambers wherein vacuum is used to remove vapors therefrom comprising a single vacuum system for supplying vacuum in increasing amounts to successive reaction chambers.
    Type: Grant
    Filed: March 9, 1995
    Date of Patent: November 14, 1995
    Assignee: Eastman Chemical Company
    Inventors: Douglas M. Haseltine, Thomas L. Yount, Jimmy L. Ryans
  • Split flow reactor trays for vertical staged polycondensation reactors
    Patent number: 5466419
    Abstract: This invention relates to a vertically disposed polymerization reactor having a series of essentially circular tray assemblies; each tray assembly having a central open vapor chimney and two split-flow paths each split-flow path containing one reverse flow path wherein the liquid polymer flow is reversed by means of a substantially semi-circular turnaround region; each tray having a liquid polymer tray inlet and a liquid polymer tray outlet for conducting a flow of the liquid polymer by means of a hydraulic gradient; each tray assembly being open at the top for escape of vapor from the liquid polymer flow to the central open vapor chimney; and each tray arranged in vertical disposition one above the other.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: November 14, 1995
    Inventors: Thomas L. Yount, Larry C. Windes, J. Wesley Adams
  • Reactor trays for a vertical staged polycondensation reactor
    Patent number: 5464590
    Abstract: This invention relates to a vertically disposed polymerization reactor having a series of essentially circular tray assemblies; each tray assembly having a central open vapor chimney and a single flow path composed of at least two loops wherein the liquid polymer flow is reversed by means of a substantially semi-circular turnaround wall; each tray having a liquid polymer tray inlet and a liquid polymer tray outlet for conducting a flow of the liquid polymer by means of a hydraulic gradient; each tray assembly being open at the top for escape of vapor from the liquid polymer flow to the central open vapor chimney; and each tray arranged in vertical disposition one above the other.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: November 7, 1995
    Inventors: Thomas L. Yount, J. Wesley Adams, Larry C. Windes
  • Oxyiodination process for manufacture of 2,6-diiodonaphthalene
    Patent number: 5082982
    Abstract: Disclosed is a process for preparation of a stream which is both selectively high in 2,6-diiodonaphthalene and also contains substantial quantities of diiodonaphthalene. First, naphthalene is oxyiodinated in the presence of a zeolite catalyst to produce a stream which is selectively high in 2-monoiodonaphthalene and the 2-monoiodonaphthalene is separated from the stream to produce a stream which is both selectively high in 2-monoiodonaphthalene and contains substantial quantities of 2-monoiodonaphthalene. Second, this stream is then oxyiodinated in the presence of a zeolite catalyst to produce a stream which is selectively high in 2,6-diiodonaphthalene and then 2,6-diiodonaphthalene is separated from the stream to produce the stream which is both selectively high in 2,6-diiodonaphthalene and contains substantial quantities of 2,6-diiodonaphthalene.
    Type: Grant
    Filed: November 2, 1990
    Date of Patent: January 21, 1992
    Assignee: Eastman Kodak Company
    Inventors: Thomas L. Yount, George G. Mayfield, Victor H. Agreda