Patents by Inventor Eugene R. Shedivy

Eugene R. Shedivy 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).

  • Discharge air reset for a constant volume air changeover bypass
    Patent number: 10876756
    Abstract: A method of controlling a discharge air reset in an heating, ventilation, air conditioning, and refrigeration (HVACR system includes determining, by a controller, a space temperature in a conditioned space, a setpoint temperature of the conditioned space, and an operating mode of a variable-air-volume (VAV) box for the conditioned space. The controller determines whether the operating mode of the VAV box matches an operating mode of an HVACR unit. A deviation from the setpoint temperature of the conditioned space for the VAV box for the conditioned is calculated in response to determining the VAV box is in a same mode as the HVACR unit. A statistical deviation from the setpoint temperature of the conditioned space is calculated. A discharge air setpoint temperature is determined based on the statistical deviation from the setpoint temperature of the conditioned space. The controller sets the discharge air setpoint temperature of the HVACR unit using the determined discharge air setpoint temperature.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: December 29, 2020
    Assignee: TRANE INTERNATIONAL INC.
    Inventors: Aaron E. Opatz, Ronnie R. Moffitt, John Arthur Murphy, James Kenneth McKeever, Eugene R. Shedivy
  • DISCHARGE AIR RESET FOR A CONSTANT VOLUME AIR CHANGEOVER BYPASS
    Publication number: 20200208865
    Abstract: A method of controlling a discharge air reset in an heating, ventilation, air conditioning, and refrigeration (HVACR system includes determining, by a controller, a space temperature in a conditioned space, a setpoint temperature of the conditioned space, and an operating mode of a variable-air-volume (VAV) box for the conditioned space. The controller determines whether the operating mode of the VAV box matches an operating mode of an HVACR unit. A deviation from the setpoint temperature of the conditioned space for the VAV box for the conditioned is calculated in response to determining the VAV box is in a same mode as the HVACR unit. A statistical deviation from the setpoint temperature of the conditioned space is calculated. A discharge air setpoint temperature is determined based on the statistical deviation from the setpoint temperature of the conditioned space. The controller sets the discharge air setpoint temperature of the HVACR unit using the determined discharge air setpoint temperature.
    Type: Application
    Filed: January 11, 2019
    Publication date: July 2, 2020
    Inventors: Aaron E. Opatz, Ronnie R. Moffitt, John Arthur Murphy, James Kenneth McKeever, Eugene R. Shedivy
  • Optimization of building ventilation by system and zone level action
    Patent number: 6919809
    Abstract: A method of selecting a ventilation control strategy from among a plurality of ventilation control strategies. The method comprises the steps of: determining if a CO2 signal is present and valid; selecting a CO2 based ventilation control strategy if the CO2 signal is present and valid; selecting a second ventilation control strategy if the CO2 signal is not present or is invalid; and operating using the selected strategy. The selection step occurs in a zone controller.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: July 19, 2005
    Assignee: American Standard International Inc.
    Inventors: Brad M. Blunn, Tedd P. Johnson, Eugene R. Shedivy, James K. McKeever, Chad A. Bjorklund, Dwight J. Watercott