Patents by Inventor John Alistair Clarke

John Alistair Clarke 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).

  • Conditioning of air supply
    Patent number: 6662575
    Abstract: A method and apparatus for conditioning a supply of bleed air from an aircraft engine to a system using such bleed air, including passing the bleed air to a turbine over which the air is expanded to produce a power output, and regulating the power output thereby to control the condition of the air downstream of the turbine.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: December 16, 2003
    Assignee: Honeywell Normalair-Garrett Limited
    Inventor: John Alistair Clarke
  • Air cycle cooling system
    Patent number: 6658873
    Abstract: An air cycle cooling system for cooling a first heat load and a second heat load, the system including a compressor to pressurise air in the system, and an expansion apparatus for allowing the compressed air to expand and cool for use in cooling the first and second heat loads, and wherein at least a proportion of the air utilised for cooling the first heat load is recycled to the compressor and at least a proportion of the air utilised for cooling the second heat load is utilised as a coolant in a primary heat exchanger to cool the air from the first heat load prior to the air from the first heat load being expanded in the expansion apparatus.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: December 9, 2003
    Assignee: Honeywell Normalair-Garrett Limited
    Inventors: John Alistair Clarke, Bernard Francis
  • Conditioning of air supply
    Publication number: 20030029177
    Abstract: A method and apparatus for conditioning a supply of bleed air from an aircraft engine to a system using such bleed air, including passing the bleed air to a turbine over which the air is expanded to produce a power output, and regulating the power output thereby to control the condition of the air downstream of the turbine.
    Type: Application
    Filed: August 6, 2002
    Publication date: February 13, 2003
    Inventor: John Alistair Clarke
  • Air cycle cooling system
    Publication number: 20030019237
    Abstract: An air cycle cooling system for cooling a first heat load and a second heat load, the system including a compressor to pressurise air in the system, and an expansion apparatus for allowing the compressed air to expand and cool for use in cooling the first and second heat loads, and wherein at least a proportion of the air utilised for cooling the first heat load is recycled to the compressor and at least a proportion of the air utilised for cooling the second heat load is utilised as a coolant in a primary heat exchanger to cool the air from the first heat load prior to the air from the first heat load being expanded in the expansion apparatus.
    Type: Application
    Filed: July 24, 2002
    Publication date: January 30, 2003
    Inventors: John Alistair Clarke, Bernard Francis Sampson