Patents by Inventor Duane J. Szymanski

Duane J. Szymanski 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).

  • BATTERY CHARGING AND DISCHARGING OF MULTIPLE PACKS AT DIFFERENT STATES OF CHARGE (SOCs)
    Publication number: 20210226267
    Abstract: The present disclosure provides a method of selectively charging or discharging a system with multiple battery packs connected in parallel when at least one of the battery packs has a significantly different voltage or states of charge (SOCs) than the other battery packs. The method includes charging or discharging the battery pack(s) with a voltage or state of charge (SOC) farthest from a target value until the voltage(s) or SOC(s) is within a range of another battery pack at which point the battery packs may be connected and charging or discharging can resume for the set of connected packs. This process is repeated until all the battery packs are at a predetermined minimum or maximum voltage or SOC threshold. The present disclosure also provides a method for selectively operating and charging at least one of a plurality of battery packs depending on the respective states of the battery packs.
    Type: Application
    Filed: October 25, 2019
    Publication date: July 22, 2021
    Inventors: Martin T. Books, Pramod Suresh Magadi, Erik. L. Piper, John P. O'Brien, Duane J. Szymanski, Bradford K.O. Palmer, Subbarao Varigonda, Jaroslaw Leonarski, Joseph E. Paquette, Carl A. Jones
  • Exhaust component cleaning and requalification process
    Patent number: 9550217
    Abstract: According to one embodiment, a method for cleaning and requalifying a component of an exhaust aftertreatment system includes inspecting the component using an x-ray processing technique. The method further includes associating the plurality of cleaning techniques with a plurality of compositions of material, and cleaning the component according to at least one of the plurality of cleaning techniques associated with the composition of material.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: January 24, 2017
    Assignee: CUMMINS IP, INC.
    Inventors: Todd M. Wieland, Leslie E. Freeman, David G. Eames, Duane J. Szymanski, Mark G. Tang, William A. MacGregor, Leigh A. Rogoski
  • EXHAUST COMPONENT CLEANING AND REQUALIFICATION PROCESS
    Publication number: 20140053865
    Abstract: According to one embodiment, a method for cleaning and requalifying a component of an exhaust aftertreatment system includes inspecting the component using an x-ray processing technique. The method further includes associating the plurality of cleaning techniques with a plurality of compositions of material, and cleaning the component according to at least one of the plurality of cleaning techniques associated with the composition of material.
    Type: Application
    Filed: August 26, 2013
    Publication date: February 27, 2014
    Inventors: Todd M. Wieland, Leslie E. Freeman, David G. Eames, Duane J. Szymanski, Mark G. Tang, William A. MacGregor, Leigh A. Rogoski