Patents by Inventor John Frederic Billingham

John Frederic Billingham 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).

  • Process for carbon dioxide recovery from a process tool
    Patent number: 7018444
    Abstract: A system for removing and purifying a carbon dioxide-containing stream from a batch process tool is provided. A multi-phase contaminated stream containing at least carbon dioxide and one or more co-solvent is removed from a process tool and conveyed to at least one intermediate pressure separator. The contaminant-containing stream is separated into an intermediate pressure carbon dioxide-enriched vapor stream and an intermediate pressure solvent and contaminant-enriched stream in the intermediate pressure separator.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: March 28, 2006
    Assignee: Praxair Technology, Inc.
    Inventors: John Frederic Billingham, Thomas John Bergman, Jr., Richard Martin Kelly, Kenneth Leroy Burgers, William Thoru Kobayashi
  • Annular column for cryogenic rectification
    Patent number: 6023945
    Abstract: An annular column, particularly useful for cryogenic rectification, comprising coaxially oriented, radially spaced cylindrical column walls defining a first column region, and a second column region between the walls, wherein different fluid mixtures are rectified in each of the first column and second column regions.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: February 15, 2000
    Assignee: Praxair Technology, Inc.
    Inventors: Kenneth Kai Wong, John Frederic Billingham, Dante Patrick Bonaquist, Bayram Arman, Raymond Francis Drnevich, Minish Mahendra Shah, Todd Alan Skare
  • Annular column for cryogenic rectification
    Patent number: 5946942
    Abstract: An annular column, particularly useful for cryogenic rectification, comprising coaxially oriented, radially spaced cylindrical column walls defining a first column region, and a second column region between the walls, wherein different fluid mixtures are rectified in each of the first column and second column regions.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: September 7, 1999
    Assignee: Praxair Technology, Inc.
    Inventors: Kenneth Kai Wong, John Frederic Billingham, Dante Patrick Bonaquist, Bayram Arman, Raymond Francis Drnevich, Minish Mahendra Shah, Todd Alan Skare
  • Method for operating a cryogenic rectification column
    Patent number: 5921109
    Abstract: A method for operating a cryogenic rectification column for the separation of the components of air by cryogenic rectification, whereby the column may be operated above its design capacity without encountering flooding, by passing vapor upward through the column at a flowrate which generates a pressure drop within the column of at least 0.7 inches of water per foot of packing height through a height of defined structured packing sheets having a different structure in their upper and lower portions.
    Type: Grant
    Filed: October 21, 1998
    Date of Patent: July 13, 1999
    Assignee: Praxair Technology, Inc.
    Inventors: John Frederic Billingham, Daniel Mark Seiler, Michael James Lockett
  • Cryogenic rectification system with modular cold boxes
    Patent number: 5896755
    Abstract: A cryogenic rectification system for producing oxygen having a feed air preparation system and a plurality of same size cold box modules operating in parallel and in conjunction with the feed air preparation system.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: April 27, 1999
    Assignee: Praxair Technology, Inc.
    Inventors: Kenneth Kai Wong, Dante Patrick Bonaquist, John Frederic Billingham, Michael Douglas Monteith, Neil Mark Prosser