Patents by Inventor Johnnie R. Hutchins

Johnnie R. Hutchins 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 discharge of product from vapor phase polymerization of monomers in a horizontal stirred-bed reactor
    Patent number: 4535134
    Abstract: A method and apparatus are disclosed for metering the removal of polymer or copolymer from the take-off end of a horizontal vapor phase polymerization stirred-bed reactor. The take-off zone discharge apparatus comprises a drain valve, which can seal off the reactor when needed, followed by an automatic discharge ball valve, which controls the discharge of product from the reactor. The discharge apparatus limits vapor losses, outlet pluggage, and downtime on the reactor. The discharge apparatus also can be operated for allowing residence time flexibility, increased catalyst yields, and improved product quality.
    Type: Grant
    Filed: March 31, 1983
    Date of Patent: August 13, 1985
    Assignee: Standard Oil Company (Indiana)
    Inventors: Mark X. de Lorenzo, Charles R. Hoffpauir, Johnnie R. Hutchins, Timmy R. Meyer, John E. Page, Michael E. Poehl