Patents by Inventor Mary J. Lorenzen

Mary J. Lorenzen 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).

  • Diesel particulate filter regeneration system including shore station
    Patent number: 8844270
    Abstract: The present disclosure relates to a diesel exhaust treatment device including a catalytic converter positioned upstream from a diesel particulate filter. An electric heater is positioned between the catalytic converter and the diesel particulate filter. A shore station can be used to provide power and combustion air to the diesel exhaust treatment device during regeneration of the diesel particulate filter.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: September 30, 2014
    Assignee: Donaldson Company, Inc.
    Inventors: John T. Herman, Mary J. Lorenzen, Wenzhong Zhang, Joanne Wagner
  • Exhaust treatment device with electric regeneration system
    Patent number: 8769938
    Abstract: The present disclosure relates to a diesel exhaust treatment device including a catalytic converter positioned upstream from a diesel particulate filter. An electric heater is positioned between the catalytic converter and the diesel particulate filter. A shore station can be used to provide power and combustion air to the diesel exhaust treatment device during regeneration of the diesel particulate filter.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: July 8, 2014
    Assignee: Donaldson Company, Inc.
    Inventors: Wayne M. Wagner, John T. Herman, Mary J. Lorenzen, Wenzhong Zhang
  • EXHAUST TREATMENT DEVICE WITH ELECTRIC REGENERATION SYSTEM
    Publication number: 20120291895
    Abstract: The present disclosure relates to a diesel exhaust treatment device including a catalytic converter positioned upstream from a diesel particulate filter. An electric heater is positioned between the catalytic converter and the diesel particulate filter. A shore station can be used to provide power and combustion air to the diesel exhaust treatment device during regeneration of the diesel particulate filter.
    Type: Application
    Filed: February 21, 2012
    Publication date: November 22, 2012
    Applicant: Donaldson Company, Inc.
    Inventors: Wayne M. Wagner, John T. Herman, Mary J. Lorenzen, Wenzhong Zhang
  • Exhaust treatment device with electric regeneration system
    Patent number: 8117832
    Abstract: The present disclosure relates to a diesel exhaust treatment device including a catalytic converter positioned upstream from a diesel particulate filter. An electric heater is positioned between the catalytic converter and the diesel particulate filter. A shore station can be used to provide power and combustion air to the diesel exhaust treatment device during regeneration of the diesel particulate filter.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: February 21, 2012
    Assignee: Donaldson Company, Inc.
    Inventors: Wayne M. Wagner, John T. Herman, Mary J. Lorenzen, Wenzhong Zhang
  • Diesel Particulate Filter Regeneration System Including Shore Station
    Publication number: 20100319331
    Abstract: The present disclosure relates to a diesel exhaust treatment device including a catalytic converter positioned upstream from a diesel particulate filter. An electric heater is positioned between the catalytic converter and the diesel particulate filter. A shore station can be used to provide power and combustion air to the diesel exhaust treatment device during regeneration of the diesel particulate filter.
    Type: Application
    Filed: January 19, 2010
    Publication date: December 23, 2010
    Inventors: Wayne M. Wagner, Joanne Wagner, John T. Herman, Mary J. Lorenzen, Wenzhong Zhang
  • Dispensing System with Remotely Mounted Metering Device
    Publication number: 20080302089
    Abstract: A system is disclosed for dispensing a reactant into an exhaust stream. The system dispenses a mixture of reactant and pressurized air into the exhaust stream. This system includes a mixing manifold that mounts to an exhaust pipe that carries the exhaust stream. The system also includes a metering device remotely mounted from the mixing manifold.
    Type: Application
    Filed: June 5, 2008
    Publication date: December 11, 2008
    Inventors: Paul Way, Matthew P. Hanson, Mary J. Lorenzen