Patents by Inventor John R. Edens
John R. Edens 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).
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Patent number: 9328939Abstract: An air handling unit has a cabinet forming a duct, a mixed-flow blower assembly configured to provide airflow through the duct, and a refrigeration coil assembly disposed within the cabinet and downstream of the mixed-flow blower assembly. Another air handling unit has a cabinet forming a duct having a generally downstream direction and a blower assembly to provide airflow through the duct. The blower assembly may have an axis of rotation generally parallel to the downstream direction and the blower assembly may be configured to primarily expel air in a direction that has a directional component that extends radially away from the axis of rotation.Type: GrantFiled: October 30, 2009Date of Patent: May 3, 2016Assignee: Trane International Inc.Inventors: John R. Edens, Jeffrey L. Stewart
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Patent number: 8887518Abstract: A method of reducing a cyclical loss coefficient of an HVAC system efficiency rating of an HVAC system includes operating the HVAC system using a recorded electronic expansion valve position of an electronic expansion valve of the HVAC system, discontinuing operation of the HVAC system, and resuming operation of the HVAC system using an electronic expansion valve position that allows greater refrigerant mass flow through the expansion valve as compared to the recorded electronic expansion valve position.Type: GrantFiled: September 30, 2010Date of Patent: November 18, 2014Assignee: Trane International Inc.Inventors: Kevin B. Mercer, John R. Edens, Jonathan David Douglas
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Patent number: 8783048Abstract: A system and a method are provided for returning oil in a heating, ventilation, and air conditioning (HVAC) system by determining when an ambient zone temperature is equal to or less than a temperature limit and reversing a direction of refrigerant flow of the HVAC system based on the length of time. Also, a system and a method are provided for monitoring the length of operation in a first and a second heating mode and for reversing a direction of refrigerant flow based on the length of time operation occurs in the first and second heating modes. A system and a method having a first compressor, a first heating mode, a second heating mode, a defrost mode, and a controller is disclosed. The controller selectively controls initiation of the defrost mode in response to an HVAC system operating in a heating mode of operation for a predetermined amount of time.Type: GrantFiled: November 14, 2012Date of Patent: July 22, 2014Assignee: Trane International Inc.Inventors: John R. Edens, Alan D. Marble, Kevin B. Mercer, Gary L. Sapp, James Thomas Schaefer, Kristin L. Schaefer, Steven A. Tice
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Patent number: 8327658Abstract: A system and a method are provided for returning oil in a heating, ventilation, and air conditioning (HVAC) system by determining when an ambient zone temperature is equal to or less than a temperature limit and reversing a direction of refrigerant flow of the HVAC system based on the length of time. Also, a system and a method are provided for monitoring the length of operation in a first and a second heating mode and for reversing a direction of refrigerant flow based on the length of time operation occurs in the first and second heating modes. A system and a method having a first compressor, a first heating mode, a second heating mode, a defrost mode, and a controller is disclosed. The controller selectively controls initiation of the defrost mode in response to an HVAC system operating in a heating mode of operation for a predetermined amount of time.Type: GrantFiled: November 17, 2008Date of Patent: December 11, 2012Assignee: Trane International, Inc.Inventors: Jonathan D. Douglas, John R. Edens, Alan D. Marble, Kevin B. Mercer, Gary L. Sapp, James T. Schaefer, Jr., Kristen L. Schaefer, Steven A. Tice
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Publication number: 20120248212Abstract: In at least some embodiments, a hybrid heating system includes a heat pump and an auxiliary furnace. The system also includes a controller coupled to the heat pump and the auxiliary furnace. The controller, in response to receiving a heat request, selects either the heat pump or the auxiliary furnace based on an economic balance point algorithm.Type: ApplicationFiled: March 30, 2011Publication date: October 4, 2012Applicant: TRANE INTERNATIONAL INC.Inventors: Timothy Wayne Storm, Gerson L. Gavin, Jonathan David Douglas, John R. Edens, Willem M. Lange, IV
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Patent number: 8151585Abstract: A system and method is provided for monitoring a system pressure to infer whether a high pressure cut out (HPCO) switch has opened disabling a heating, ventilating, and air conditioning (HVAC) compressor. A system and method are also provided for determining whether to disable the heating, ventilating, and air conditioning (HVAC) compressor based on a status of a low pressure cut out (LPCO) switch, an ambient temperature, and system mode state. The systems and methods may be used interchangeably with the appropriate adjustments to decision limits, such as where the LPCO may be monitored to infer status and the HPCO status may be directly used with temperature and system mode state.Type: GrantFiled: September 26, 2008Date of Patent: April 10, 2012Assignee: Trane International Inc.Inventors: Jonathan D. Douglas, John R. Edens, Alan D Marble, Kevin B. Mercer, Gary L. Sapp, Brett R. Schneider, Steven A. Tice
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Publication number: 20120080179Abstract: A method of reducing a cyclical loss coefficient of an HVAC system efficiency rating of an HVAC system includes operating the HVAC system using a recorded electronic expansion valve position of an electronic expansion valve of the HVAC system, discontinuing operation of the HVAC system, and resuming operation of the HVAC system using an electronic expansion valve position that allows greater refrigerant mass flow through the expansion valve as compared to the recorded electronic expansion valve position.Type: ApplicationFiled: September 30, 2010Publication date: April 5, 2012Applicant: TRANE INTERNATIONAL INC.Inventors: Kevin B. Mercer, John R. Edens, Jonathan David Douglas
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Patent number: 8116911Abstract: A system and a method are provided for powering up a heating, ventilation, and air conditioning (HVAC) system and operating a sump heater for a compressor for a first predetermined period of time in response to the HVAC system being powered up. A heating, ventilation, and air conditioning system and a method for controlling the system are provided. The HVAC system includes a compressor, a sump heater associated with the compressor, and a controller configured to control the compressor and the sump heater so that the sump heater is not operated while the compressor is operated.Type: GrantFiled: November 17, 2008Date of Patent: February 14, 2012Assignee: Trane International Inc.Inventors: John J. Bailey, Jose L. Balderrama, Jonathan D Douglas, John R. Edens, Alan D. Marble, Gary L. Sapp, Kristen L. Schaefer, Brett R. Schneider, Steven A. Tice
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Patent number: 8113789Abstract: A system and method is provided for monitoring a system pressure to infer whether a high pressure cut out (HPCO) switch has opened disabling a heating, ventilating, and air conditioning (HVAC) compressor. A system and method are also provided for determining whether to disable the HVAC compressor based on a status of a low pressure cut out (LPCO) switch, an ambient temperature, and system mode state. The systems and methods may be used interchangeably with the appropriate adjustments to decision limits, such as where the LPCO may be monitored to infer status and the HPCO status may be directly used with temperature and system mode state.Type: GrantFiled: September 26, 2008Date of Patent: February 14, 2012Assignee: Trane International Inc.Inventors: Jonathan D. Douglas, John R. Edens, Carl L. Garrett, Alan D. Marble, Kevin B. Mercer, Gary L. Sapp, Kristin L. Schaefer, Brett R. Schneider, Steven A. Tice
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Publication number: 20110100051Abstract: An air handling unit has a cabinet forming a duct, a mixed-flow blower assembly configured to provide airflow through the duct, and a refrigeration coil assembly disposed within the cabinet and downstream of the mixed-flow blower assembly. Another air handling unit has a cabinet forming a duct having a generally downstream direction and a blower assembly to provide airflow through the duct. The blower assembly may have an axis of rotation generally parallel to the downstream direction and the blower assembly may be configured to primarily expel air in a direction that has a directional component that extends radially away from the axis of rotation.Type: ApplicationFiled: October 30, 2009Publication date: May 5, 2011Applicant: TRANE INTERNATIONAL INC.Inventors: John R. EDENS, Jeffrey L. STEWART
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Publication number: 20100125368Abstract: A system and a method are provided for powering up a heating, ventilation, and air conditioning (HVAC) system and operating a sump heater for a compressor for a first predetermined period of time in response to the HVAC system being powered up. A heating, ventilation, and air conditioning system and a method for controlling the system are provided. The HVAC system includes a compressor, a sump heater associated with the compressor, and a controller configured to control the compressor and the sump heater so that the sump heater is not operated while the compressor is operated.Type: ApplicationFiled: November 17, 2008Publication date: May 20, 2010Applicant: Trane International, Inc.Inventors: John J. BAILEY, Jose L. BALDERRAMA, Jonathan D. DOUGLAS, John R. EDENS, Alan D. MARBLE, Gary L. SAPP, Kristin L. SCHAEFER, Brett R. SCHNEIDER, Steven A. TICE
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Publication number: 20100123016Abstract: A system and a method are provided for returning oil in a heating, ventilation, and air conditioning (HVAC) system by determining when an ambient zone temperature is equal to or less than a temperature limit and reversing a direction of refrigerant flow of the HVAC system based on the length of time. Also, a system and a method are provided for monitoring the length of operation in a first and a second heating mode and for reversing a direction of refrigerant flow based on the length of time operation occurs in the first and second heating modes. A system and a method having a first compressor, a first heating mode, a second heating mode, a defrost mode, and a controller is disclosed. The controller selectively controls initiation of the defrost mode in response to an HVAC system operating in a heating mode of operation for a predetermined amount of time.Type: ApplicationFiled: November 17, 2008Publication date: May 20, 2010Applicant: TRANE INTERNATIONAL, INC.Inventors: Jonathan D. DOUGLAS, John R. EDENS, Alan D. MARBLE, Kevin B. MERCER, Gary L. SAPP, James T. SCHAEFER, JR., Kristin L. SCHAEFER, Steven A. TICE
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Publication number: 20100080713Abstract: A system and method is provided for monitoring a system pressure to infer whether a high pressure cut out (HPCO) switch has opened disabling a heating, ventilating, and air conditioning (HVAC) compressor. A system and method are also provided for determining whether to disable the heating, ventilating, and air conditioning (HVAC) compressor based on a status of a low pressure cut out (LPCO) switch, an ambient temperature, and system mode state. The systems and methods may be used interchangeably with the appropriate adjustments to decision limits, such as where the LPCO may be monitored to infer status and the HPCO status may be directly used with temperature and system mode state.Type: ApplicationFiled: September 26, 2008Publication date: April 1, 2010Applicant: TRANE INTERNATIONAL, INC.Inventors: Jonathan D. Douglas, John R. Edens, Alan D. Marble, Kevin B. Mercer, Gary L. Sapp, Brett R. Schneider, Steven A. Tice
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Publication number: 20100080712Abstract: A system and method is provided for monitoring a system pressure to infer whether a high pressure cut out (HPCO) switch has opened disabling a heating, ventilating, and air conditioning (HVAC) compressor. A system and method are also provided for determining whether to disable the HVAC compressor based on a status of a low pressure cut out (LPCO) switch, an ambient temperature, and system mode state. The systems and methods may be used interchangeably with the appropriate adjustments to decision limits, such as where the LPCO may be monitored to infer status and the HPCO status may be directly used with temperature and system mode state.Type: ApplicationFiled: September 26, 2008Publication date: April 1, 2010Applicant: Trane International, Inc.Inventors: Jonathan D. Douglas, John R. Edens, Carl L. Garrett, Alan D. Marble, Kevin B. Mercer, Gary L. Sapp, Kristin L. Schaefer, Brett R. Schneider, Steven A. Tice