Patents by Inventor Neil Mark Prosser

Neil Mark Prosser 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).

  • Cold compression cryogenic rectification system for producing low purity oxygen
    Patent number: 6626008
    Abstract: A cryogenic rectification system for producing low purity oxygen from an auxiliary column to a double column system wherein the auxiliary column is reboiled by fluid taken from an intermediate level of the higher pressure column or by a portion of cooled feed air which is cold compressed to a higher pressure prior to the reboiling.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: September 30, 2003
    Assignee: Praxair Technology, Inc.
    Inventors: Neil Mark Prosser, Minish Mahendra Shah
  • Cryogenic rectification system for producing low purity oxygen using shelf vapor turboexpansion
    Patent number: 6622520
    Abstract: A cryogenic rectification system for producing low purity oxygen from an auxiliary column to a double column system and which can also effectively produce nitrogen gas product and/or one or more liquid products wherein the lower pressure column of the double column system is reboiled in part by turboexpanded shelf vapor which is condensed in an intermediate reboiler and preferably subcooled prior to passage into the lower pressure column.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: September 23, 2003
    Assignee: Praxair Technology, Inc.
    Inventors: Neil Mark Prosser, Minish Mahendra Shah
  • Multicomponent refrigerant fluids for low and cryogenic temperatures
    Publication number: 20030042463
    Abstract: Multicomponent refrigerant fluids for generating refrigeration, especially over a wide temperature range including cryogenic temperatures, which are advantageous over conventional refrigerant fluids especially for certain applications, and which are non-toxic, non-flammable and low or non-ozone-depleting and preferably are maintained in variable load form through compression, cooling, expansion and warming steps in a refrigeration cycle.
    Type: Application
    Filed: July 24, 2002
    Publication date: March 6, 2003
    Inventors: Bayram Arman, Neil Mark Prosser, M. Abdul-Aziz Rashad, Henry Edward Howard
  • Cryogenic air separation system for elevated pressure product
    Patent number: 6286336
    Abstract: A cryogenic air separation system particularly useful for producing elevated pressure product wherein additional reflux is generated by a heat pump circuit operating between the upper portion and an intermediate location of the lower pressure column of a double column.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: September 11, 2001
    Assignee: Praxair Technology, Inc.
    Inventor: Neil Mark Prosser
  • Cryogenic rectification system for producing low purity oxygen and high purity oxygen
    Patent number: 5916262
    Abstract: A cryogenic rectification system wherein low purity oxygen is recovered from a side column or the lower pressure column of a double column while a portion of the low purity oxygen is fed to an auxiliary column driven by fluid having a high nitrogen concentration wherein high purity oxygen is produced.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: June 29, 1999
    Assignee: Praxair Technology, Inc.
    Inventors: Neil Mark Prosser, James Richard Handley, Ravindra Fulchand Pahade, Brien Scott Wierzchowski
  • 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
  • Cryogenic rectification system with kettle liquid column
    Patent number: 5675977
    Abstract: A cryogenic rectification system for producing oxygen and nitrogen employing a kettle liquid column which processes oxygen-enriched kettle liquid from a higher pressure column and which is reboiled by a fluid taken from below the top of the higher pressure column.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: October 14, 1997
    Assignee: Praxair Technology, Inc.
    Inventor: Neil Mark Prosser