Patents by Inventor Marshall Abernathy

Marshall Abernathy 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 controlling the formation of polymer accumulations during distillation of a vinylaromatic monomer
    Patent number: 4442048
    Abstract: A method for controlling the formation of polymer accumulations in a distillation column comprising accumulating liquid phase material containing a polymerization inhibitor in a seal pan; providing the seal pan with liquid-pervious weep hole means through the bottom of the pan and allowing a controlled quantity of polymerization inhibitor-containing liquid phase material to seep through the weep hole means to the underside of the seal pan; and apparatus useful for practicing the disclosed method.
    Type: Grant
    Filed: April 1, 1982
    Date of Patent: April 10, 1984
    Assignee: Cosden Technology, Inc.
    Inventors: Marshall Abernathy, Darrell E. Bailey