Patents by Inventor Charles F. Maitland

Charles F. Maitland 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).

  • Regeneration of caustic solutions
    Patent number: 7578984
    Abstract: A caustic recovery system comprising an oxygen source adapted to provide a gas stream comprising at least 30% oxygen. A method of regenerating caustic comprising intermingling spent caustic with a gas stream comprising at least 30% oxygen.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: August 25, 2009
    Assignee: Fluor Technologies Corporation
    Inventor: Charles F. Maitland
  • Regeneration of caustic solutions
    Publication number: 20040170543
    Abstract: A caustic recovery system comprising an oxygen source adapted to provide a gas stream comprising at least 30% oxygen. A method of regenerating caustic comprising intermingling spent caustic with a gas stream comprising at least 30% oxygen.
    Type: Application
    Filed: April 26, 2004
    Publication date: September 2, 2004
    Inventor: Charles F. Maitland
  • Coke drum system with movable floor
    Patent number: 6113745
    Abstract: Methods and compositions are provided which decrease the risk and spillage associated with discharging coke from a coking vessel. The risk to workers is decreased by eliminating the need for workers to be near the coking vessel while the head is being removed. The spillage is decreased by modifying the effective diameter of the coke chute inlet in a manner which allows it to catch any materials discharged from the coking vessel both during and after the opening of the bottom head. The process can enhance drum draining and further eliminate the need for process piping to facilitate the draining of water from the coking vessel.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: September 5, 2000
    Assignee: Fluor Corporation
    Inventors: Charles F. Maitland, Bruce Kerr, Samuel A. Martin, Michael B. Knowles, Leslie P. Antalffy