Patents by Inventor Lawrence E. Shelley

Lawrence E. Shelley 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).

  • Process for charging dry terephthalic acid into a reactor
    Patent number: 4365078
    Abstract: This invention concerns a method of charging dry terephthalic acid into a reactor which may contain glycol and be under elevated pressure and elevated temperature. According to the invention a suspension of terephthalic acid in a gas such as nitrogen is formed and this suspension is charged into the reactor.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: December 21, 1982
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Lawrence E. Shelley
  • Preparation of high molecular weight polyester
    Patent number: 4254253
    Abstract: This invention comprises an improvement in the preparation of high molecular weight polyester, said improvement comprising simultaneously and continuously crystallizing, drying and heating low molecular weight particulated, melt polymerized linear condensation polyester prepolymer resin by subjecting said prepolymer resin to a high frequency energy field in the range from about 20.0 to about 300 megahertz for a period of time ranging from about 20 to 90 seconds.
    Type: Grant
    Filed: February 21, 1980
    Date of Patent: March 3, 1981
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: James W. Brent, Jr., Lawrence E. Shelley