Patents by Inventor David B. Messersmith

David B. Messersmith 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).

  • Patent number: 9644889
    Abstract: A liquefied natural gas (LNG) facility that employs a system to remove incondensable material from one or more refrigeration cycles within the facility. One or more embodiments of the present invention can be advantageously employed in an open-loop refrigeration cycle to remove at least a portion of one or more high vapor pressure components that have accumulated in the refrigerant cycle over time. In addition, several embodiments can be advantageously employed to stabilize facility operation in the event of drastic changes to the concentration of the natural gas feed stream introduced into the facility.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: May 9, 2017
    Assignee: ConocoPhillips Company
    Inventors: Weldon L. Ransbarger, Megan V. Evans, Attilio J. Praderio, David B. Messersmith
  • Publication number: 20100058803
    Abstract: A liquefied natural gas (LNG) facility that employs a system to remove incondensable material from one or more refrigeration cycles within the facility. One or more embodiments of the present invention can be advantageously employed in an open-loop refrigeration cycle to remove at least a portion of one or more high vapor pressure components that have accumulated in the refrigerant cycle over time. In addition, several embodiments can be advantageously employed to stabilize facility operation in the event of drastic changes to the concentration of the natural gas feed stream introduced into the facility.
    Type: Application
    Filed: September 4, 2009
    Publication date: March 11, 2010
    Applicant: CONOCOPHILLIPS COMPANY
    Inventors: Weldon L. Ransbarger, Megan V. Evans, Attilio J. Praderio, David B. Messersmith