Patents by Inventor Charles E. B. Green

Charles E. B. Green 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).

  • Calculating airflow values from HVAC systems
    Patent number: 8653769
    Abstract: A method of calculating a control parameter for a component in an HVAC system includes receiving a plurality of input signals, and calculating a value of the control parameter using a control parameter equation having a plurality of predetermined coefficients and a plurality of variables, each variable corresponding to one of the input signals. This equation is stored in and subsequently fetched from memory associated with a component of the HVAC system, such as a blower motor controller or a system controller. In some embodiments, the equation is stored in a device for interfacing a system controller with a blower motor assembly.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: February 18, 2014
    Assignee: Nidec Motor Corporation
    Inventor: Charles E. B. Green
  • Calculating airflow values for HVAC systems
    Patent number: 8242723
    Abstract: A method of calculating a control parameter for a component in an HVAC system includes receiving a plurality of input signals, and calculating a value of the control parameter using a control parameter equation having a plurality of predetermined coefficients and a plurality of variables, each variable corresponding to one of the input signals. This equation is stored in and subsequently fetched from memory associated with a component of the HVAC system, such as a blower motor controller or a system controller. In some embodiments, the equation is stored in a device for interfacing a system controller with a blower motor assembly.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: August 14, 2012
    Assignee: Nidec Motor Corporation
    Inventor: Charles E. B. Green
  • Calculating Airflow Values For HVAC Systems
    Publication number: 20090082908
    Abstract: A method of calculating a control parameter for a component in an HVAC system includes receiving a plurality of input signals, and calculating a value of the control parameter using a control parameter equation having a plurality of predetermined coefficients and a plurality of variables, each variable corresponding to one of the input signals. This equation is stored in and subsequently fetched from memory associated with a component of the HVAC system, such as a blower motor controller or a system controller. In some embodiments, the equation is stored in a device for interfacing a system controller with a blower motor assembly.
    Type: Application
    Filed: September 25, 2008
    Publication date: March 26, 2009
    Applicant: Emmerson Electric Co.
    Inventor: Charles E. B. Green
  • Offset PWM signals for multiphase motor
    Patent number: 7193388
    Abstract: A multi phase motor includes a switching array for interconnecting a power source to each phase. A current sensor senses current supplied from the power source via the switching array to the winding and a controller generates offset PWM signals for controlling the switching array to supply power to each of the phases of the winding. The offset timing allows the individual phase currents to be determined from a single current sensor.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: March 20, 2007
    Assignee: Emerson Electric Co.
    Inventors: James L. Skinner, Charles E. B. Green