Patents by Inventor Christopher J. Rynders, JR.

Christopher J. Rynders, JR. 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: 8444729
    Abstract: An exhaust particulate filter for an engine system includes an array of filter cartridges positioned within a shell, each of the cartridges having an electrically powered heating element coupled therewith. Exhaust gases may be distributed among the cartridges according to a single distribution pattern, and the filter can be regenerated without diverting, dividing or bypassing exhaust gases from the filter. The filter cartridges may be cylindrical or wedge-shaped, or of a variety of other configurations. Regeneration may take place according to a non-axial regeneration propagation profile. Other aspects include feedback control and feedforward control of regeneration based on sensing an electrical resistance property of each of the electrically powered heating elements.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: May 21, 2013
    Assignee: Caterpillar Inc.
    Inventors: Brett M. Bailey, Clifford E. Cotton, Christopher J. Rynders, Jr., Michael J. Readey, Michael J. Pollard, Robert L. Meyer
  • Publication number: 20110146234
    Abstract: A power system is provided. The power system includes a power source configured to generate a flow of exhaust including particulate matter. The power system also includes a fuel supply line connecting a fuel supply and the power source, and being configured to direct a fuel flow from the fuel supply to the power source. An additive injector is configured to inject an additive into the fuel flow. An ionization device is at least partially disposed within the flow of exhaust, and is configured to apply a charge to the particulate matter and the additive. A particulate filter is configured to remove the particulate matter and the additive from the flow of exhaust.
    Type: Application
    Filed: December 23, 2009
    Publication date: June 23, 2011
    Applicant: Caterpillar Inc.
    Inventors: Christopher J. Rynders, JR., Clifford Eugene Cotton, III, Brett Bailey
  • Publication number: 20090272263
    Abstract: An exhaust particulate filter for an engine system includes an array of filter cartridges positioned within a shell, each of the cartridges having an electrically powered heating element coupled therewith. Exhaust gases may be distributed among the cartridges according to a single distribution pattern, and the filter can be regenerated without diverting, dividing or bypassing exhaust gases from the filter. The filter cartridges may be cylindrical or wedge-shaped, or of a variety of other configurations. Regeneration may take place according to a non-axial regeneration propagation profile. Other aspects include feedback control and feedforward control of regeneration based on sensing an electrical resistance property of each of the electrically powered heating elements.
    Type: Application
    Filed: July 15, 2009
    Publication date: November 5, 2009
    Applicant: Caterpillar Inc.
    Inventors: Brett M. Bailey, Clifford E. Cotton, Christopher J. Rynders, JR., Michael J. Readey, Michael J. Pollard, Robert L. Meyer