Patents by Inventor Rosa Maria Leal
Rosa Maria Leal 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: 11466883Abstract: According to one embodiment, a system includes a first and second cooling system, an automation controller, one or more sensors, and a hardware controller separate from the automation controller. The hardware controller processes various temperature set points in conjunction with a timer and configures the activation or deactivation of the first and second cooling systems accordingly.Type: GrantFiled: April 12, 2021Date of Patent: October 11, 2022Assignee: Lennox Industries Inc.Inventors: Anuradha Sundararajan, John Manby, Anna Vishinsky, Alan E. Bennett, Rosa Maria Leal
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Publication number: 20210231328Abstract: According to one embodiment, a system includes a first and second cooling system, an automation controller, one or more sensors, and a hardware controller separate from the automation controller. The hardware controller processes various temperature set points in conjunction with a timer and configures the activation or deactivation of the first and second cooling systems accordingly.Type: ApplicationFiled: April 12, 2021Publication date: July 29, 2021Inventors: Anuradha Sundararajan, John Manby, Anna Vishinsky, Alan E. Bennett, Rosa Maria Leal
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Patent number: 11054162Abstract: Provided are a method and apparatus for verifying or correcting the temperature sensor and compressor pairings within the HVAC system control logic, indicating that a sensor is logically paired with the specific compressor, from amongst a tandem compressor group, to which the sensor is coupled.Type: GrantFiled: June 11, 2020Date of Patent: July 6, 2021Assignee: Lennox Industries Inc.Inventors: Harold Gene Havard, Jr., Rosa Maria Leal, Anuradha Sundararajan
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Patent number: 11015826Abstract: According to one embodiment, a system includes at least one of a cooling system and a heating system, an automation controller, a sensor, and a switch. The automation controller provides a first input indicating a first temperature set point. The sensor detects a temperature of a second space proximate the sensor and provides a second input indicating the temperature of the second space and a second temperature set point. The switch activates at least one of the cooling system and the heating system based on the second temperature set point in response to a determination that the second input overrides the first input.Type: GrantFiled: July 13, 2016Date of Patent: May 25, 2021Assignee: Lennox Industries Inc.Inventors: Anuradha Sundararajan, John Manby, Anna Vishinsky, Alan E. Bennett, Rosa Maria Leal
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Publication number: 20200300492Abstract: Provided are a method and apparatus for verifying or correcting the temperature sensor and compressor pairings within the HVAC system control logic, indicating that a sensor is logically paired with the specific compressor, from amongst a tandem compressor group, to which the sensor is coupled.Type: ApplicationFiled: June 11, 2020Publication date: September 24, 2020Applicant: Lennox Industries Inc.Inventors: Harold Gene HAVARD, JR., Rosa Maria LEAL, Anuradha SUNDARARAJAN
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Patent number: 10684032Abstract: Provided are a method and apparatus for verifying or correcting the temperature sensor and compressor pairings within the HVAC system control logic, indicating that a sensor is logically paired with the specific compressor, from amongst a tandem compressor group, to which the sensor is coupled.Type: GrantFiled: March 9, 2015Date of Patent: June 16, 2020Assignee: Lennox Industries Inc.Inventors: Harold Gene Havard, Jr., Rosa Maria Leal, Anuradha Sundararajan
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Patent number: 10635060Abstract: A method of controlling operations of an HVAC system includes measuring temperature within an enclosed space, receiving a setpoint temperature within the enclosed space, calculating a temperature difference between the measured temperature and the received setpoint temperature, and determining whether the temperature difference between the measured temperature and the received setpoint temperature is greater than or equal to a first predetermined temperature differential value. If the temperature difference between the measured temperature and the received setpoint temperature is greater than or equal to the first predetermined temperature differential value, determining whether the temperature difference between the measured temperature and the received setpoint temperature is greater than or equal to a second predetermined temperature differential value.Type: GrantFiled: June 6, 2019Date of Patent: April 28, 2020Assignee: Lennox Industries LLCInventors: Rosa Maria Leal, Alan Edens Bennett, Krag Wilson Mercer, Farhad Nick Abrishamkar
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Publication number: 20190286084Abstract: A method of controlling operations of an HVAC system includes measuring temperature within an enclosed space, receiving a setpoint temperature within the enclosed space, calculating a temperature difference between the measured temperature and the received setpoint temperature, and determining whether the temperature difference between the measured temperature and the received setpoint temperature is greater than or equal to a first predetermined temperature differential value. If the temperature difference between the measured temperature and the received setpoint temperature is greater than or equal to the first predetermined temperature differential value, determining whether the temperature difference between the measured temperature and the received setpoint temperature is greater than or equal to a second predetermined temperature differential value.Type: ApplicationFiled: June 6, 2019Publication date: September 19, 2019Applicant: Lennox Industries LLCInventors: Rosa Maria LEAL, Alan Edens BENNETT, Krag Wilson MERCER, Farhad Nick ABRISHAMKAR
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Patent number: 10338546Abstract: A method of controlling operations of an HVAC system includes measuring temperature within an enclosed space, receiving a setpoint temperature within the enclosed space, calculating a temperature difference between the measured temperature and the received setpoint temperature, and determining whether the temperature difference between the measured temperature and the received setpoint temperature is greater than or equal to a first predetermined temperature differential value. If the temperature difference between the measured temperature and the received setpoint temperature is greater than or equal to the first predetermined temperature differential value, determining whether the temperature difference between the measured temperature and the received setpoint temperature is greater than or equal to a second predetermined temperature differential value.Type: GrantFiled: March 2, 2016Date of Patent: July 2, 2019Assignee: Lennox Industries LLCInventors: Rosa Maria Leal, Alan Edens Bennett, Krag Wilson Mercer, Farhad Nick Abrishamkar
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Patent number: 10259086Abstract: Provided are a method and apparatus for reducing a refrigerant pressure difference within are HVAC system having a controller, one or more compressors, and at least two paths of refrigerant piping comprising alternative paths for refrigerant flow through the HVAC system. A valve is coupled to each refrigerant piping path for permitting, or preventing, refrigerant flow through each of the alternate paths of refrigerant piping. The controller may open at least one valve for a defined period of time in response to a triggering input to allow a refrigerant pressure difference within the HVAC system to dissipate across the opened valve.Type: GrantFiled: January 26, 2018Date of Patent: April 16, 2019Assignee: Lennox Industries Inc.Inventors: Harold Gene Havard, Jr., Rakesh Goel, Rosa Maria Leal, Thomas Edward Pate, Jr.
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Patent number: 10197304Abstract: An HVAC system, comprising a plurality of sensors, a tandem compressor comprising a first compressor and a second compressor, and a controller communicatively coupled to the plurality of sensors and the tandem compressor. The controller may determine a first interruption of power to the tandem compressor and identify a sensor corresponding to the first interruption of power. The controller is further operable to determine that the first interruption of power was caused at least in part by the refrigerant associated with the first compressor exceeding a tolerance condition. The controller may also reconfigure the tandem compressor, wherein on or off settings of the first compressor and the second compressor are determined based on a required load operation of the tandem compressor and the determination that the first interruption of power was caused at least in part by the refrigerant associated with the first compressor exceeding the tolerance condition.Type: GrantFiled: May 22, 2015Date of Patent: February 5, 2019Assignee: Lennox Industries Inc.Inventors: Harold Gene Havard, Jr., Rosa Maria Leal, Darko Hadzidedic, Jimmie Lee Curry, Anuradha Sundararajan, Der-Kai Hung, William Clay Toombs, Jr.
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Patent number: 10156396Abstract: The present invention provides for a system for operating a heating, ventilation, and air conditioning (HVAC) system. A controller operates compressors in tandem connected to an evaporator. In response to detection of a pre-freezing condition of in the coils of the evaporator, the controller adjusts an operating condition of the HVAC system.Type: GrantFiled: February 27, 2017Date of Patent: December 18, 2018Assignee: Lennox Industries Inc.Inventors: Der-Kai Hung, Harold Gene Havard, Jr., Rosa Maria Leal
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Publication number: 20180147676Abstract: Provided are a method and apparatus for reducing a refrigerant pressure difference within are HVAC system having a controller, one or more compressors, and at least two paths of refrigerant piping comprising alternative paths for refrigerant flow through the HVAC system. A valve is coupled to each refrigerant piping path for permitting, or preventing, refrigerant flow through each of the alternate paths of refrigerant piping. The controller may open at least one valve for a defined period of time in response to a triggering input to allow a refrigerant pressure difference within the HVAC system to dissipate across the opened valve.Type: ApplicationFiled: January 26, 2018Publication date: May 31, 2018Inventors: Harold Gene Havard, JR., Rakesh Goel, Rosa Maria Leal, Thomas Edward Pate, JR.
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Patent number: 9884394Abstract: Provided are a method and apparatus for reducing a refrigerant pressure difference within an HVAC system having a controller, one or more compressors, and at least two paths of refrigerant piping comprising alternative paths for refrigerant flow through the HVAC system. A valve is coupled to each refrigerant piping path for permitting, or preventing, refrigerant flow through each of the alternate paths of refrigerant piping. The controller may open at least one valve for a defined period of time in response to a triggering input to allow a refrigerant pressure difference within the HVAC system to dissipate across the opened valve.Type: GrantFiled: February 19, 2015Date of Patent: February 6, 2018Assignee: Lennox Industries Inc.Inventors: Harold Gene Havard, Jr., Rakesh Goel, Rosa Maria Leal, Thomas Edward Pate, Jr.
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Publication number: 20180017277Abstract: According to one embodiment, a system includes at least one of a cooling system and a heating system, an automation controller, a sensor, and a switch. The automation controller provides a first input indicating a first temperature set point. The sensor detects a temperature of a second space proximate the sensor and provides a second input indicating the temperature of the second space and a second temperature set point. The switch activates at least one of the cooling system and the heating system based on the second temperature set point in response to a determination that the second input overrides the first input.Type: ApplicationFiled: July 13, 2016Publication date: January 18, 2018Inventors: Anuradha Sundararajan, John Manby, JR., Anna Vishinsky, Alan E. Bennett, Rosa Maria Leal
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Patent number: 9759468Abstract: The present invention provides for a control system for operating a heating, ventilation, and air conditioning (HVAC) system. A controller operates compressors in tandem. In response to detection of a high pressure condition in refrigerant flowing through a high pressure side of the HVAC system, the controller operates the HVAC system with a first compressor on and a second compressor off.Type: GrantFiled: March 21, 2014Date of Patent: September 12, 2017Assignee: Lennox Industries Inc.Inventors: Der-Kai Hung, Harold Gene Havard, Jr., Rosa Maria Leal
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Publication number: 20170254553Abstract: A method of controlling operations of an HVAC system includes measuring temperature within an enclosed space, receiving a setpoint temperature within the enclosed space, calculating a temperature difference between the measured temperature and the received setpoint temperature, and determining whether the temperature difference between the measured temperature and the received setpoint temperature is greater than or equal to a first predetermined temperature differential value. If the temperature difference between the measured temperature and the received setpoint temperature is greater than or equal to the first predetermined temperature differential value, determining whether the temperature difference between the measured temperature and the received setpoint temperature is greater than or equal to a second predetermined temperature differential value.Type: ApplicationFiled: March 2, 2016Publication date: September 7, 2017Applicant: Lennox Industries LLCInventors: Rosa Maria LEAL, Alan Edens BENNETT, Krag Wilson MERCER, Farhad Nick ABRISHAMKAR
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Patent number: 9692347Abstract: Systems and methods involve controlling a variable-speed blower in a heating, ventilating, and air conditioning (HVAC) system to ensure the setting of a blower-proving switch to confirm airflow in a building. In one instance, a method involves ramping up the variable-speed blower so that the associated static pressure reaches a making point pressure of the blower-proving switch and then reducing the power to a desired power level. The method may also include maintaining the power level above a breaking point pressure. Other systems and methods are presented.Type: GrantFiled: June 13, 2014Date of Patent: June 27, 2017Assignee: Lennox Industries Inc.Inventors: Der-Kai Hung, Harold Gene Havard, Jr., Rosa Maria Leal, Steven C. Brown, Stephen A. Walter
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Publication number: 20170167777Abstract: The present invention provides for a system for operating a heating, ventilation, and air conditioning (HVAC) system. A controller operates compressors in tandem connected to an evaporator. In response to detection of a pre-freezing condition of in the coils of the evaporator, the controller adjusts an operating condition of the HVAC system.Type: ApplicationFiled: February 27, 2017Publication date: June 15, 2017Inventors: Der-Kai Hung, Harold Gene Havard, JR., Rosa Maria Leal
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Patent number: 9581371Abstract: The present invention provides for a system for operating a heating, ventilation, and air conditioning (HVAC) system. A controller operates compressors in tandem connected to an evaporator. In response to detection of a pre-freezing condition of in the coils of the evaporator, the controller adjusts an operating condition of the HVAC system.Type: GrantFiled: March 21, 2014Date of Patent: February 28, 2017Assignee: Lennox Industries Inc.Inventors: Der-Kai Hung, Harold Gene Havard, Jr., Rosa Maria Leal