Patents by Inventor James R. Ketchum

James R. Ketchum 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).

  • Polymer removal from a polymer mixer
    Patent number: 7878700
    Abstract: A method and apparatus for controlling the removal of polymer from a mixer using an outlet gate that is coupled to an actuator by way of a pair of flanges, one flange carrying a protuberance and the other flange carrying a depression into which the protuberance fits in a sliding manner.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: February 1, 2011
    Assignee: Equistar Chemicals, LP
    Inventor: James R. Ketchum
  • Polymer removal from a polymer mixer
    Publication number: 20100074045
    Abstract: A method and apparatus for controlling the removal of polymer from a mixer using an outlet gate that is coupled to an actuator by way of a pair of flanges, one flange carrying a protuberance and the other flange carrying a depression into which the protuberance fits in a sliding manner.
    Type: Application
    Filed: September 23, 2008
    Publication date: March 25, 2010
    Inventor: James R. Ketchum
  • Method for conveying polymer
    Publication number: 20080292742
    Abstract: A method for transferring molten polymer through a chute having sharp internal corners, the chute bridging spaced apart processing units, wherein at least the internal corners of the chute are rounded and smoothed to at least a mirror shine.
    Type: Application
    Filed: May 25, 2007
    Publication date: November 27, 2008
    Inventor: James R. Ketchum