Patents by Inventor Scott Shankle

Scott Shankle 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).

  • Apparatus for extracting plasticizer
    Patent number: 6223449
    Abstract: An apparatus for extracting plasticizer from polymer structures includes, in one embodiment, a evacuation chamber, a heat source and a cooling chamber are all coupled to a conduit having a motorized fan for cycling gases through the components. The plasticizer is evaporated within the evacuation chamber by the heat source and entrained in a gaseous stream passing through the evacuation chamber. The plasticizer enriched gases are then passed through the cooling chamber wherein the plasticizer is condensed prior to being cycled back to the evacuation chamber. A gas heater aid in maintaining a constant gas flow temperature within the evacuation chamber.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: May 1, 2001
    Assignee: Johnson Research & Development Company, Inc.
    Inventors: Lonnie G. Johnson, John M. Baxley, Scott Shankle, Jeffrey Shane Matthews