Patents by Inventor John Neil Buffington

John Neil Buffington 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).

  • SYSTEM, ASSEMBLY AND METHOD FOR PORT CONTROL
    Publication number: 20110232915
    Abstract: A port control system including a group of port control assemblies at least one of which delaying passage of a plug and at least one of which preventing passage of a plug, each assembly of the group configured to shift a sleeve to open one or more ports responsive to contact with a same sized plug upon fluid pressure differential across the plug; and at least one second group of port control assemblies at least one of which delaying passage of a plug and at least one of which preventing passage of a plug, each assembly of the group configured to shift a sleeve to open one or more ports responsive to contact with a same sized plug upon fluid pressure differential across the plug. A method is included.
    Type: Application
    Filed: March 23, 2010
    Publication date: September 29, 2011
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Justin Kellner, John Neil Buffington, Matthew D. Solfronk, John Travis Harris