Patents by Inventor Anthony Clark Rodman

Anthony Clark Rodman 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).

  • Patent number: 8375705
    Abstract: An exhaust control system for use with a combustion engine is disclosed. The exhaust control system may have an exhaust passage configured to receive a flow of exhaust from the combustion engine, a particulate filter located within the exhaust passage, and an oxidation catalyst located upstream of the filter. The oxidation catalyst may be configured to promote regeneration of the particulate filter and may have an activation temperature range. The exhaust control system may also have a heating device located to selectively warm the oxidation catalyst to within the activation temperature range, and a controller in communication with the combustion engine and the heating device. The controller may be configured to detect a loading of the particulate filter exceeding a first loaded threshold amount, and to detect a low temperature condition of the combustion engine.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: February 19, 2013
    Assignee: Caterpillar Inc.
    Inventors: Anthony Clark Rodman, Cornelius Nicolae Opris
  • Patent number: 8196392
    Abstract: An exhaust system for use with a combustion engine is disclosed. The exhaust system may have an exhaust passage configured to receive a flow of exhaust from the combustion engine, a particulate filter located within the exhaust passage, and a heating device located to selectively warm the flow of exhaust passing through the particulate filter. The exhaust system may also have a controller in communication with the combustion engine and the heating device. The controller may be configured to continuously determine an amount of particulate matter within the particulate filter, continuously determine a desired regeneration temperature based on the amount of particulate matter, and continuously determine an error value as a function of the desired regeneration temperature and an actual regeneration temperature. The controller may be further configured to determine an amount of particulate matter within the particulate filter, and adjust an amount of warming provided by the heating device based on the error value.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: June 12, 2012
    Assignee: Caterpillar Inc.
    Inventors: Anthony Clark Rodman, Cornelius Nicolae Opris
  • Publication number: 20090293456
    Abstract: An exhaust system for use with a combustion engine is disclosed. The exhaust system may have an exhaust passage configured to receive a flow of exhaust from the combustion engine, a particulate filter located within the exhaust passage, and a heating device located to selectively warm the flow of exhaust passing through the particulate filter. The exhaust system may also have a controller in communication with the combustion engine and the heating device. The controller may be configured to continuously determine an amount of particulate matter within the particulate filter, continuously determine a desired regeneration temperature based on the amount of particulate matter, and continuously determine an error value as a function of the desired regeneration temperature and an actual regeneration temperature. The controller may be further configured to determine an amount of particulate matter within the particulate filter, and adjust an amount of warming provided by the heating device based on the error value.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 3, 2009
    Inventors: Anthony Clark Rodman, Cornelius Nicolae Opris
  • Publication number: 20090293455
    Abstract: An exhaust control system for use with a combustion engine is disclosed. The exhaust control system may have an exhaust passage configured to receive a flow of exhaust from the combustion engine, a particulate filter located within the exhaust passage, and an oxidation catalyst located upstream of the filter. The oxidation catalyst may be configured to promote regeneration of the particulate filter and may have an activation temperature range. The exhaust control system may also have a heating device located to selectively warm the oxidation catalyst to within the activation temperature range, and a controller in communication with the combustion engine and the heating device. The controller may be configured to detect a loading of the particulate filter exceeding a first loaded threshold amount, and to detect a low temperature condition of the combustion engine.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 3, 2009
    Inventors: Anthony Clark Rodman, Cornelius Nicolae Opris
  • Patent number: 7356987
    Abstract: An exhaust gas recirculation system for a power source, has at least one inlet port configured to receive at least a portion of a flow of exhaust produced by the power source. The exhaust gas recirculation system also has an electrode disposed upstream of the at least one inlet port and configured to charge particulate matter in the flow of exhaust. The exhaust gas recirculation system further has at least one collection surface configured to allow the at least one electrode to repel the charged particulate matter away from the at least one inlet port towards the at least one collection surface.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: April 15, 2008
    Assignee: Caterpillar Inc.
    Inventors: Matthew Thomas Kiser, David Michael Thaler, Anthony Clark Rodman, Matthew Earnest Williams