Patents by Inventor Richard R. Dickson

Richard R. Dickson 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).

  • Exhaust gas particulate measuring system
    Patent number: 7404340
    Abstract: A gas sampling system 36 capable of testing and certifying internal combustion engines 16 under transient conditions is provided and includes a partial flow dilution tunnel 38, master and slave mass flow controllers 80,60 and a transient dilution air flow controlling arrangement 110. The transient dilution air flow controlling arrangement 110 measures the transient changes in intake air and varies the flow of diluent air to the partial flow dilution tunnel 38. By controlling the diluent air in this manner ensures that a particle sample can be taken at any time that is at a constant proportion to the exhaust flow rate.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: July 29, 2008
    Assignee: Caterpillar Inc.
    Inventors: Richard R. Dickson, Russell R. Graze, Jr.
  • Exhaust gas particulate measuring system
    Patent number: 7243559
    Abstract: A gas sampling system 36 capable of testing and certifying internal combustion engines 16 under transient conditions is provided and includes a partial flow dilution tunnel 38, master and slave mass flow controllers 80,60 and a transient dilution air flow controlling arrangement 110. The transient dilution air flow controlling arrangement 110 measures the transient changes in intake air and varies the flow of diluent air to the partial flow dilution tunnel 38. By controlling the diluent air in this manner ensures that a particle sample can be taken at any time that is at a constant proportion to the exhaust flow rate.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: July 17, 2007
    Assignee: Caterpillar Inc.
    Inventors: Richard R. Dickson, Russell R. Graze, Jr.
  • Exhaust gas particulate measuring system
    Publication number: 20040118223
    Abstract: A gas sampling system 36 capable of testing and certifying internal combustion engines 16 under transient conditions is provided and includes a partial flow dilution tunnel 38, master and slave mass flow controllers 80,60 and a transient dilution air flow controlling arrangement 110. The transient dilution air flow controlling arrangement 110 measures the transient changes in intake air and varies the flow of diluent air to the partial flow dilution tunnel 38. By controlling the diluent air in this manner ensures that a particle sample can be taken at any time that is at a constant proportion to the exhaust flow rate.
    Type: Application
    Filed: October 24, 2003
    Publication date: June 24, 2004
    Inventors: Richard R. Dickson, Russell R. Graze
  • Exhaust gas particulate measuring system
    Publication number: 20030167859
    Abstract: A gas sampling system 36 capable of testing and certifying internal combustion engines 16 under transient conditions is provided and includes a partial flow dilution tunnel 38, master and slave mass flow controllers 80,60 and a transient dilution air flow controlling arrangement 110. The transient dilution air flow controlling arrangement 110 measures the transient changes in intake air and varies the flow of diluent air to the partial flow dilution tunnel 38. By controlling the diluent air in this manner ensures that a particle sample can be taken at any time that is at a constant proportion to the exhaust flow rate.
    Type: Application
    Filed: July 10, 2001
    Publication date: September 11, 2003
    Inventors: Richard R. Dickson, Russell R. Graze
  • Method for controlling dilution air
    Patent number: 6615677
    Abstract: A method for controlling the dilution air supply to a partial flow dilution tunnel in a gas sampling system is provided. The gas sampling system is capable of testing and certifying internal combustion engines under transient conditions and includes a partial flow dilution tunnel, master and slave mass flow controllers and a transient dilution air flow controlling arrangement. The transient dilution air flow controlling arrangement measures the transient changes in intake air and varies the flow of diluent air to the partial flow dilution tunnel. By controlling the diluent air in this manner ensures that a particle sample can be taken at any time that is at a constant proportion to the exhaust flow rate.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: September 9, 2003
    Assignee: Caterpillar Inc
    Inventors: Richard R. Dickson, Russell R. Graze, Jr.
  • Method for controlling dilution air
    Publication number: 20030079555
    Abstract: A method for controlling the dilution air supply to a partial flow dilution tunnel in a gas sampling system is provided. The gas sampling system is capable of testing and certifying internal combustion engines under transient conditions and includes a partial flow dilution tunnel, master and slave mass flow controllers and a transient dilution air flow controlling arrangement. The transient dilution air flow controlling arrangement measures the transient changes in intake air and varies the flow of diluent air to the partial flow dilution tunnel. By controlling the diluent air in this manner ensures that a particle sample can be taken at any time that is at a constant proportion to the exhaust flow rate.
    Type: Application
    Filed: October 31, 2001
    Publication date: May 1, 2003
    Inventors: Richard R. Dickson, Russell R. Graze