Patents by Inventor David M. Wynnick

David M. Wynnick 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).

  • Variable speed motor control method and apparatus
    Patent number: 9310089
    Abstract: An HVAC unit includes an HVAC motor and a system controller. The HVAC motor is coupled to a motor controller. The motor controller is configured to receive a command signal bearing a digitally encoded operating level of the HVAC motor. The system controller is coupled to the motor controller, and is configured to transmit the command signal to the motor controller. The system controller modulates the command signal with the digitally encoded operating level in response to a service demand.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: April 12, 2016
    Assignee: Lennox Industries Inc.
    Inventors: Mark G. Beste, Brian Hudson, Roger C. Hundt, David Omlor, Stephen A. Walter, David M. Wynnick
  • Airflow managing system, a method of monitoring the airflow in an HVAC system and a HVAC system
    Patent number: 8880224
    Abstract: An airflow managing system for monitoring airflow of a HVAC system, a HVAC system and a method of monitoring the airflow in a HVAC system is provided. In one embodiment, the airflow managing system includes: (1) an air pressure sensor configured to obtain an air pressure measurement directly from a scroll of an air blower of the HVAC system and (2) a HVAC controller configured to determine an airflow rate for the HVAC system based on the air pressure measurement and corresponding parameters associated with the air blower.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: November 4, 2014
    Assignee: Lennox Industries Inc.
    Inventors: Erroll L. Eaton, Mark D. Hess, Richard A. Mauk, Stephen A. Walter, David M. Wynnick
  • VARIABLE SPEED MOTOR CONTROL METHOD AND APPARATUS
    Publication number: 20100298983
    Abstract: An HVAC unit includes an HVAC motor and a system controller. The HVAC motor is coupled to a motor controller. The motor controller is configured to receive a command signal bearing a digitally encoded operating level of the HVAC motor. The system controller is coupled to the motor controller, and is configured to transmit the command signal to the motor controller. The system controller modulates the command signal with the digitally encoded operating level in response to a service demand.
    Type: Application
    Filed: January 27, 2010
    Publication date: November 25, 2010
    Applicant: Lennox Industries, Incorporated
    Inventors: Mark G. Beste, Brian Hudson, Roger C. Hundt, David Omlor, Stephen A. Walter, David M. Wynnick
  • AIRFLOW MANAGING SYSTEM, A METHOD OF MONITORING THE AIRFLOW IN AN HVAC SYSTEM AND A HVAC SYSTEM
    Publication number: 20100298993
    Abstract: An airflow managing system for monitoring airflow of a HVAC system, a HVAC system and a method of monitoring the airflow in a HVAC system is provided. In one embodiment, the airflow managing system includes: (1) an air pressure sensor configured to obtain an air pressure measurement directly from a scroll of an air blower of the HVAC system and (2) a HVAC controller configured to determine an airflow rate for the HVAC system based on the air pressure measurement and corresponding parameters associated with the air blower.
    Type: Application
    Filed: January 27, 2010
    Publication date: November 25, 2010
    Applicant: Lennox Industries, Incorporated
    Inventors: Erroll L. Eaton, Mark D. Hess, Richard A. Mauk, Stephen A. Walter, David M. Wynnick