Patents by Inventor Neelkanth Gupte
Neelkanth Gupte 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: 11920806Abstract: A leak detection system of a heating, ventilating, and air conditioning (HVAC) system includes a sensor configured to detect a UV tracer in a monitored gas volume of the HVAC system. The leak detection system also includes a controller communicatively coupled to the sensor. The controller is configured to modify operation of the HVAC system in response to the sensor detecting the UV tracer in the monitored gas volume.Type: GrantFiled: January 24, 2022Date of Patent: March 5, 2024Assignee: Johnson Controls Tyco IP Holdings LLPInventors: William F. McQuade, Neelkanth Gupte
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Patent number: 11892219Abstract: A multiple-circuit heating and cooling system includes a first refrigeration circuit having a first condenser and a first evaporator and a second refrigeration circuit having a second condenser and a second evaporator. The first condenser and the second condenser are arranged in a first row split configuration, and the second condenser is downstream of the first condenser relative to a first air flow directed across the second condenser and the first condenser. Additionally, the first evaporator and the second evaporator are arranged in a second row split configuration, and the first evaporator is downstream of the second evaporator relative to a second air flow directed across the first evaporator and the second evaporator.Type: GrantFiled: January 31, 2023Date of Patent: February 6, 2024Assignee: JOHNSON CONTROLS TYCO IP HOLDINGS LLPInventor: Neelkanth Gupte
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Publication number: 20230184618Abstract: A refrigerant leak management system for a heating, ventilating, and air conditioning (HVAC) system is disclosed. The system includes a controller communicatively coupled to one or more sensors disposed within the HVAC system. The controller measures a vibration pattern associated with a component of the HVAC system. The controller determines whether the vibration pattern is indicative of a refrigerant leak in the HVAC system. Additionally, the controller can modify operation of the HVAC system when the vibration pattern is indicative of the refrigerant leak in the HVAC system.Type: ApplicationFiled: February 6, 2023Publication date: June 15, 2023Inventors: Neelkanth Gupte, Jay C. Walser, James C. Perkins
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Publication number: 20230175743Abstract: A multiple-circuit heating and cooling system includes a first refrigeration circuit having a first condenser and a first evaporator and a second refrigeration circuit having a second condenser and a second evaporator. The first condenser and the second condenser are arranged in a first row split configuration, and the second condenser is downstream of the first condenser relative to a first air flow directed across the second condenser and the first condenser. Additionally, the first evaporator and the second evaporator are arranged in a second row split configuration, and the first evaporator is downstream of the second evaporator relative to a second air flow directed across the first evaporator and the second evaporator.Type: ApplicationFiled: January 31, 2023Publication date: June 8, 2023Inventor: Neelkanth Gupte
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Patent number: 11592214Abstract: A multiple-circuit heating and cooling system includes a first refrigeration circuit having a first condenser and a first evaporator and a second refrigeration circuit having a second condenser and a second evaporator. The first condenser and the second condenser are arranged in a first row split configuration, and the second condenser is downstream of the first condenser relative to a first air flow directed across the second condenser and the first condenser. Additionally, the first evaporator and the second evaporator are arranged in a second row split configuration, and the first evaporator is downstream of the second evaporator relative to a second air flow directed across the first evaporator and the second evaporator.Type: GrantFiled: April 20, 2018Date of Patent: February 28, 2023Assignee: Johnson Controls Tyco IP Holdings LLPInventor: Neelkanth Gupte
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Patent number: 11573149Abstract: A refrigerant leak management system for a heating, ventilating, and air conditioning (HVAC) system is disclosed. The system includes a controller communicatively coupled to one or more sensors disposed within the HVAC system. The controller measures a vibration pattern associated with a component of the HVAC system. The controller determines whether the vibration pattern is indicative of a refrigerant leak in the HVAC system. Additionally, the controller can modify operation of the HVAC system when the vibration pattern is indicative of the refrigerant leak in the HVAC system.Type: GrantFiled: January 15, 2018Date of Patent: February 7, 2023Assignee: Johnson Controls Tyco IP Holdings LLPInventors: Neelkanth Gupte, Jay C. Walser, James C. Perkins
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Publication number: 20220146132Abstract: leak detection system of a heating, ventilating, and air conditioning (HVAC) system includes a sensor configured to detect a UV tracer in a monitored gas volume of the HVAC system. The leak detection system also includes a controller communicatively coupled to the sensor. The controller is configured to modify operation of the HVAC system in response to the sensor detecting the UV tracer in the monitored gas volume.Type: ApplicationFiled: January 24, 2022Publication date: May 12, 2022Inventors: William F. McQuade, Neelkanth Gupte
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Patent number: 11231197Abstract: A leak detection system of a heating, ventilating, and air conditioning (HVAC) system includes a sensor configured to detect a UV tracer in a monitored gas volume of the HVAC system. The leak detection system also includes a controller communicatively coupled to the sensor. The controller is configured to modify operation of the HVAC system in response to the sensor detecting the UV tracer in the monitored gas volume.Type: GrantFiled: January 15, 2018Date of Patent: January 25, 2022Assignee: Johnson Controls Technology CompanyInventors: William F. McQuade, Neelkanth Gupte
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Patent number: 10996131Abstract: A refrigerant gas sensing system of a heating, ventilating, and air conditioning (HVAC) system, wherein the refrigerant gas sensing system is configured to collect a sample from a monitored gas volume, to introduce an ignition source to the sample, to detect an amount of combustion product in the sample after ignition, to determine an amount of leaked refrigerant in the monitored gas volume based on the measured amount of combustion product, and to indicate the amount of leaked refrigerant in the monitored gas volume.Type: GrantFiled: January 15, 2018Date of Patent: May 4, 2021Assignee: Johnson Controls Technology CompanyInventors: William F. McQuade, Neelkanth Gupte
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Patent number: 10677679Abstract: A refrigerant leak detection system for a heating, ventilation, and air conditioning (HVAC) system includes a vessel configured to receive an air sample. The refrigerant leak detection system includes a cooling device configured to cool the vessel and a liquid detection device configured to detect liquid in the vessel. The refrigerant leak detection system further includes an actuator configured to actuate a transfer mechanism to collect the air sample in the vessel.Type: GrantFiled: January 15, 2018Date of Patent: June 9, 2020Assignee: Johnson Controls Technology CompanyInventors: Neelkanth Gupte, William F. McQuade
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Publication number: 20190170384Abstract: A leak detection system of a heating, ventilating, and air conditioning (HVAC) system includes a sensor configured to detect a UV tracer in a monitored gas volume of the HVAC system. The leak detection system also includes a controller communicatively coupled to the sensor. The controller is configured to modify operation of the HVAC system in response to the sensor detecting the UV tracer in the monitored gas volume.Type: ApplicationFiled: January 15, 2018Publication date: June 6, 2019Inventors: William F. McQuade, Neelkanth Gupte
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Publication number: 20190170602Abstract: A refrigerant leak detection system for a heating, ventilation, and air conditioning (HVAC) system includes a vessel configured to receive an air sample. The refrigerant leak detection system includes a cooling device configured to cool the vessel and a liquid detection device configured to detect liquid in the vessel. The refrigerant leak detection system further includes an actuator configured to actuate a transfer mechanism to collect the air sample in the vessel.Type: ApplicationFiled: January 15, 2018Publication date: June 6, 2019Inventors: Neelkanth Gupte, William F. McQuade
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Publication number: 20190170603Abstract: A refrigerant leak management system for a heating, ventilating, and air conditioning (HVAC) system is disclosed. The system includes a controller communicatively coupled to one or more sensors disposed within the HVAC system. The controller measures a vibration pattern associated with a component of the HVAC system. The controller determines whether the vibration pattern is indicative of a refrigerant leak in the HVAC system. Additionally, the controller can modify operation of the HVAC system when the vibration pattern is indicative of the refrigerant leak in the HVAC system.Type: ApplicationFiled: January 15, 2018Publication date: June 6, 2019Inventors: Neelkanth Gupte, Jay C. Walser, James C. Perkins
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Publication number: 20190170598Abstract: A refrigerant gas sensing system of a heating, ventilating, and air conditioning (HVAC) system, wherein the refrigerant gas sensing system is configured to collect a sample from a monitored gas volume, to introduce an ignition source to the sample, to detect an amount of combustion product in the sample after ignition, to determine an amount of leaked refrigerant in the monitored gas volume based on the measured amount of combustion product, and to indicate the amount of leaked refrigerant in the monitored gas volume.Type: ApplicationFiled: January 15, 2018Publication date: June 6, 2019Inventors: William F. McQuade, Neelkanth Gupte
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Publication number: 20180306469Abstract: A multiple-circuit heating and cooling system includes a first refrigeration circuit having a first condenser and a first evaporator and a second refrigeration circuit having a second condenser and a second evaporator. The first condenser and the second condenser are arranged in a first row split configuration, and the second condenser is downstream of the first condenser relative to a first air flow directed across the second condenser and the first condenser. Additionally, the first evaporator and the second evaporator are arranged in a second row split configuration, and the first evaporator is downstream of the second evaporator relative to a second air flow directed across the first evaporator and the second evaporator.Type: ApplicationFiled: April 20, 2018Publication date: October 25, 2018Inventor: Neelkanth Gupte
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Publication number: 20050262872Abstract: A parallel tube heat exchanger receiving two-phase refrigerant flow from a common manifold is provided with an eductor nozzle in one end of the manifold so as to cause the flow of refrigerant to pass along one leg of the manifold and down another leg thereof so as to reenter the upstream end of the first leg by way of a crossover tube. In this way, the two-phase refrigerant flow to the parallel tubes is more uniformly distributed. In one embodiment of the invention, the manifold is a unitary tube with a centrally disposed, longitudinally extending partition to define two longitudinally extending chambers that fluidly communicate by gaps at the ends of the central partition.Type: ApplicationFiled: May 26, 2004Publication date: December 1, 2005Applicant: Carrier CorporationInventors: Paul Sacks, Steven Spencer, Neelkanth Gupte
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Publication number: 20050252230Abstract: A freezer includes a freezer compartment in which frozen items are stored and frozen. Air from the freezer compartment is drawn into a fan panel by a fan. The air is cooled in an evaporator and then returned to the freezer compartment. Flexible baffles are provided in the fan panel. During normal operation, the airflow created by the fan deflects the baffles, allowing the air to flow through the fan panel unhindered. When ice and frost forms on the evaporator, a defrost mode is initiated to melt the ice with heat generated by a heater. The fan is turned off, and the baffles drop to a straight vertical position due to gravity. The vertical baffles create resistance in the airflow and prevent the heated air and moisture generated by the heater from entering the freezer compartment and forming frost on the frozen items.Type: ApplicationFiled: May 17, 2004Publication date: November 17, 2005Inventors: Neelkanth Gupte, Jamie Lorzadeh, Daren Decker
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Publication number: 20050189090Abstract: A multiple pass, parallel tube heat exchanger with a collection header extending along the length of each of a first and second pass, is provided with a bypass tube which fluidly interconnects the downstream end of the collection header to a midpoint thereof, near the end of the first pass tubes and the beginning of the second pass tubes so as to enhance the flow distribution of two-phase refrigerant from the collection header to the second pass tubes. The distribution flow is further enhanced by the insertion of an eductor nozzle within the collection header, and with the inlet of the eductor nozzle being supplied by refrigerant flow from the condenser to thereby provide a motive flow of two-phase refrigerant in the loop which includes the latter half of the collection header and the bypass tubes.Type: ApplicationFiled: February 26, 2004Publication date: September 1, 2005Inventor: Neelkanth Gupte
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Publication number: 20050126215Abstract: The present invention discloses an improved heat transfer tube, an improved method of formation, and an improved use of such heat transfer tube. The present invention discloses a boiling tube for a refrigerant evaporator that provides at least one dual cavity nucleate boiling site. The present invention further discloses an improved refrigerant evaporator including at least one such boiling tube, and the method of making such a boiling tube.Type: ApplicationFiled: October 12, 2004Publication date: June 16, 2005Inventors: Petur Thors, Tommy Tyler, Neelkanth Gupte