Patents by Inventor Justin D. Warner

Justin D. Warner 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).

  • Cooling member
    Patent number: 8495890
    Abstract: A cooling member for a variable speed drive is disclosed. The cooling member includes including at least two channels, each channel including at least one inlet and at least one outlet, a first passageway configured to provide fluid to the at least two channels through the at least one inlet of each channel, a second passageway configured to receive fluid from the at least one outlet of each channel the at least two channels, and a connector to connect the cooling member to a second cooling member.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: July 30, 2013
    Assignee: Johnson Controls Technology Company
    Inventors: Ivan Jadric, Steve M. Hoover, Kathleen S. Rogers, Michael S. Todd, Mathias R. Fox, Christopher J. Keizer, Ronald C. Perry, Matthew T. Boerma, Justin D. Warner, Scott V. Slothower, Julie S. Muszynski, David J. Laforme
  • Permanent magnet synchronous motor and drive system
    Patent number: 8258664
    Abstract: A hybrid motor for powering a compressor of a chiller system includes a first rotor portion and a first stator portion configured as a permanent magnet motor and a second rotor portion and a second stator portion configured as a reluctance motor. The second rotor portion includes a reluctance-type rotor, and the second stator portion includes electromagnetic windings capable of inducing a rotary magnetic field. The first rotor portion and the second rotor portion are attached to a common drive shaft. The reluctance motor is arranged to generate start-up torque and initiate rotation of the drive shaft until the drive shaft achieves a predetermined rotational speed. The permanent magnet motor is arranged to power the drive shaft between the predetermined rotational speed and a maximum rotational speed.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: September 4, 2012
    Assignee: Johnson Controls Technology Company
    Inventors: Justin D. Warner, Ivan Jadric, Michael S. Todd, Zhiqiao Wu, Shreesha Adiga Manoor, Konstantin Borisov, Scott Victor Slothower, Kanishk Dubey, John C. Hansen
  • COOLING MEMBER
    Publication number: 20100071396
    Abstract: A cooling member for a variable speed drive is disclosed. The cooling member includes including at least two channels, each channel including at least one inlet and at least one outlet, a first passageway configured to provide fluid to the at least two channels through the at least one inlet of each channel, a second passageway configured to receive fluid from the at least one outlet of each channel the at least two channels, and a connector to connect the cooling member to a second cooling member.
    Type: Application
    Filed: December 2, 2009
    Publication date: March 25, 2010
    Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
    Inventors: Ivan JADRIC, Steve M. HOOVER, Kathleen S. ROGERS, Michael S. TODD, Mathias R. FOX, Christopher J. KEIZER, Ronald C. PERRY, Matthew T. BOERMA, Justin D. WARNER, Scott V. SLOTHOWER, Julie S. MUSZYNSKI, David J. LAFORME