Patents by Inventor Ramasamy Thiyagarajan
Ramasamy Thiyagarajan 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: 11944254Abstract: A dishwashing appliance includes a cabinet, a cabinet door for opening and closing the cabinet, a tub provided in the cabinet, the tub defining a wash chamber, an outlet defined at a first portion of the tub, an inlet defined at a second portion of the tub, an air flow duct defined between the inlet and the outlet, wherein air enters the air flow duct from the tub via the outlet and exits the air flow duct to the tub via the inlet, and an access panel removably attached to the air flow duct, the access panel defining a mounting plate protruding from an interior surface of the access panel.Type: GrantFiled: December 7, 2020Date of Patent: April 2, 2024Assignee: Haier US Appliance Solutions, Inc.Inventor: Ramasamy Thiyagarajan
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Publication number: 20230363616Abstract: A dishwashing appliance may include a cabinet, a tub, a pump, a spray assembly, a fluid recirculation duct, a cold water line, and a fan or a variable-flow restrictor. The tub may define a wash chamber. The pump may be configured to deliver a wash fluid to the wash chamber. The fluid recirculation duct may extend from a path inlet to a path outlet to recirculate air within the wash chamber. The path inlet may be defined in fluid communication between the wash chamber and the path outlet. The path outlet may be defined in fluid communication between the path inlet and the wash chamber downstream from the path inlet. The cold water line may define a cold water nozzle disposed within the fluid recirculation duct to provide a condensing, coldwater flow into the fluid recirculation duct between the path inlet and the path outlet.Type: ApplicationFiled: May 13, 2022Publication date: November 16, 2023Inventors: Ramasamy Thiyagarajan, Adam Christopher Hofmann
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Publication number: 20230337892Abstract: A dishwashing appliance may include a cabinet, a tub, a pump, a spray assembly, a fluid recirculation duct, a cold water loop, a heat exchanger, and a tub fan. The fluid recirculation duct may extend from a path inlet to a path outlet to recirculate air within a wash chamber. The cold water loop may define a cold water nozzle disposed within the fluid recirculation duct to provide a condensing, cold-water flow into the fluid recirculation duct between the path inlet and the path outlet. The heat exchanger may be mounted to the cold water loop outside of the fluid recirculation duct to cool water within the cold water loop. The tub fan may be configured to selectively motivate an airflow from the path inlet to the path outlet.Type: ApplicationFiled: April 26, 2022Publication date: October 26, 2023Inventor: Ramasamy Thiyagarajan
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Patent number: 11571105Abstract: A dishwasher appliance includes a cabinet having a wash chamber for receipt of articles for cleaning, a rack assembly slidably received into the wash chamber and configured for the receipt of the articles, and a fluid dispensing assembly for dispensing a fluid onto the articles in the rack assembly during operation of the dishwasher appliance. Further, the dishwasher appliance includes a spot detection assembly. The spot detection assembly includes a transparent component and an imaging device arranged adjacent to the transparent component. As such, the imaging device is configured to detect one or more fluid spots on the transparent component, which is indicative of fluid spots being present on the articles.Type: GrantFiled: November 24, 2020Date of Patent: February 7, 2023Assignee: HAIER US APPLIANCE SOLUTIONS, INC.Inventors: Habib Baydoun, Ramasamy Thiyagarajan
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Publication number: 20220273156Abstract: Dishwashing appliances and methods, as provided herein, may include features or steps such as, in a standalone sump and filter flush mode, measuring a water level in the sump of the dishwashing appliance. The sump and filter flush mode also includes comparing the measured water level in the sump to a preset value and draining water from the sump when the measured water level in the sump is greater than the preset value.Type: ApplicationFiled: March 1, 2021Publication date: September 1, 2022Inventors: Ramasamy Thiyagarajan, Adam Christopher Hofmann
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Publication number: 20220175213Abstract: A dishwashing appliance includes a cabinet, a cabinet door for opening and closing the cabinet, a tub provided in the cabinet, the tub defining a wash chamber, an outlet defined at a first portion of the tub, an inlet defined at a second portion of the tub, an air flow duct defined between the inlet and the outlet, wherein air enters the air flow duct from the tub via the outlet and exits the air flow duct to the tub via the inlet, and an access panel removably attached to the air flow duct, the access panel defining a mounting plate protruding from an interior surface of the access panel.Type: ApplicationFiled: December 7, 2020Publication date: June 9, 2022Inventor: Ramasamy Thiyagarajan
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Publication number: 20220160204Abstract: A dishwasher appliance includes a cabinet having a wash chamber for receipt of articles for cleaning, a rack assembly slidably received into the wash chamber and configured for the receipt of the articles, and a fluid dispensing assembly for dispensing a fluid onto the articles in the rack assembly during operation of the dishwasher appliance. Further, the dishwasher appliance includes a spot detection assembly. The spot detection assembly includes a transparent component and an imaging device arranged adjacent to the transparent component. As such, the imaging device is configured to detect one or more fluid spots on the transparent component, which is indicative of fluid spots being present on the articles.Type: ApplicationFiled: November 24, 2020Publication date: May 26, 2022Inventors: Habib Baydoun, Ramasamy Thiyagarajan
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Patent number: 11202553Abstract: A dishwashing appliance includes a tub defining a wash chamber. An inlet is defined in the tub and provides air flow into the wash chamber. A fan selectively urges air through the inlet in at least two different directions, including a first direction and a second direction. A diverter disk is proximate the inlet downstream of the fan and upstream of the wash chamber. The diverter disk defines an axial direction. The diverter disk is movable along the axial direction between a first position and a second position. The fan urges the diverter disk to move from the second position to the first position when the fan urges air through the inlet in the first direction, and the fan urges the diverter disk to move from the first position to the second position when the fan urges air through the inlet in the second direction.Type: GrantFiled: September 26, 2018Date of Patent: December 21, 2021Assignee: Haier US Appliance Solutions, Inc.Inventors: Thiyagarajan Sankaran Veerabhagu, Ramasamy Thiyagarajan, Kyle Edward Durham, Timothy Kopera
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Patent number: 11191420Abstract: A dishwashing appliance, as provided herein, may include a cabinet, a tub, a pump, a spray assembly, a first fluid path, and a second fluid path. The first fluid path may extend from a first path inlet to a first path outlet to recirculate air within a wash chamber. The first path inlet may be defined in fluid communication between the wash chamber and the first path outlet. The second fluid path may extend from a second path inlet to a second path outlet to direct ambient air to the wash chamber. The second path inlet may be defined in fluid communication between an ambient environment surrounding the dishwashing appliance and the second path outlet. The second path outlet may be defined in fluid communication between the second path inlet and the wash chamber downstream from the second path inlet.Type: GrantFiled: November 4, 2019Date of Patent: December 7, 2021Assignee: Haier US Appliance Solutions, Inc.Inventors: Ramasamy Thiyagarajan, Matthew David Mersch
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Patent number: 11166618Abstract: A dishwashing appliance includes a tub defining a wash chamber. The tub includes an inlet and an outlet. The dishwashing appliance also includes a drying system in fluid communication with the wash chamber. The drying system includes a heat pipe heat exchanger having a condenser section and an evaporator section. The evaporator section is downstream of the outlet. The condenser section is downstream of the evaporator section and upstream of the inlet. A thermoelectric assembly is in thermal communication with the heat pipe heat exchanger.Type: GrantFiled: September 7, 2018Date of Patent: November 9, 2021Assignee: Haier US Appliance Solutions, Inc.Inventors: Ramasamy Thiyagarajan, Adam Christopher Hofmann
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Patent number: 11122960Abstract: A dishwashing appliance, as provided herein, may include a cabinet, a tub, a water tank, a wet air duct, a dry air duct, a water supply conduit, a diverter valve, and a diverted branch. The tub may be housed within the cabinet and may define a wash chamber. The water tank may be mounted within the cabinet outside of the wash chamber. The wet air duct may extend from the wash chamber to the water tank. The dry air duct may extend from the water tank to the wash chamber. The water supply conduit may extend to the wash chamber. The diverter valve may be disposed along the water supply conduit upstream from the wash chamber. The diverted branch may extend from the diverter valve to the water tank to selectively guide water from the water supply conduit to the water tank.Type: GrantFiled: February 19, 2020Date of Patent: September 21, 2021Assignee: Haier US Appliance Solutions, Inc.Inventors: Adam Christopher Hofmann, Timothy Kopera, Ramasamy Thiyagarajan
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Patent number: 11122959Abstract: A dishwashing appliance, as provided herein, may include a cabinet, a tub, a pump, a spray assembly, a fluid recirculation duct, and a cold water line. The tub may be housed within the cabinet and define a wash chamber. The fluid recirculation duct may extend from a path inlet to a path outlet to recirculate air within the wash chamber. The path inlet may be defined in fluid communication between the wash chamber and the path outlet. The path outlet may be defined in fluid communication between the path inlet and the wash chamber downstream from the path inlet. The cold water line may extend through the fluid recirculation duct. The cold water line may define a cold water nozzle that is disposed within the fluid recirculation duct to provide a condensing, cold-water flow into the fluid recirculation duct between the path inlet and the path outlet.Type: GrantFiled: January 22, 2020Date of Patent: September 21, 2021Assignee: Haier US Appliance Solutions, Inc.Inventors: Timothy Kopera, Adam Christopher Hofmann, Ramasamy Thiyagarajan
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Patent number: 11109739Abstract: A dishwashing appliance includes a tub defining a wash chamber. An inlet is defined in the tub and provides air flow into the wash chamber. A diverter disk is proximate the inlet and upstream of the wash chamber. The diverter disk is rotatable between a first position and a second position. The diverter disk permits air flow into the wash chamber via the inlet in a first direction when the diverter disk is in the first position and in a second direction when the diverter disk is in the second position.Type: GrantFiled: May 18, 2018Date of Patent: September 7, 2021Assignee: Haier US Appliance Solutions, Inc.Inventors: Thiyagarajan Sankaran Veerabhagu, Ramasamy Thiyagarajan, Timothy Kopera, Adam Christopher Hofmann, Kyle Edward Durham
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Publication number: 20210251466Abstract: A dishwashing appliance, as provided herein, may include a cabinet, a tub, a water tank, a wet air duct, a dry air duct, a water supply conduit, a diverter valve, and a diverted branch. The tub may be housed within the cabinet and may define a wash chamber. The water tank may be mounted within the cabinet outside of the wash chamber. The wet air duct may extend from the wash chamber to the water tank. The dry air duct may extend from the water tank to the wash chamber. The water supply conduit may extend to the wash chamber. The diverter valve may be disposed along the water supply conduit upstream from the wash chamber. The diverted branch may extend from the diverter valve to the water tank to selectively guide water from the water supply conduit to the water tank.Type: ApplicationFiled: February 19, 2020Publication date: August 19, 2021Inventors: Adam Christopher Hofmann, Timothy Kopera, Ramasamy Thiyagarajan
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Publication number: 20210219814Abstract: A dishwashing appliance, as provided herein, may include a cabinet, a tub, a pump, a spray assembly, a fluid recirculation duct, and a cold water line. The tub may be housed within the cabinet and define a wash chamber. The fluid recirculation duct may extend from a path inlet to a path outlet to recirculate air within the wash chamber. The path inlet may be defined in fluid communication between the wash chamber and the path outlet. The path outlet may be defined in fluid communication between the path inlet and the wash chamber downstream from the path inlet. The cold water line may extend through the fluid recirculation duct. The cold water line may define a cold water nozzle that is disposed within the fluid recirculation duct to provide a condensing, cold-water flow into the fluid recirculation duct between the path inlet and the path outlet.Type: ApplicationFiled: January 22, 2020Publication date: July 22, 2021Inventors: Timothy Kopera, Adam Christopher Hofmann, Ramasamy Thiyagarajan
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Publication number: 20210127944Abstract: A dishwashing appliance, as provided herein, may include a cabinet, a tub, a pump, a spray assembly, a first fluid path, and a second fluid path. The first fluid path may extend from a first path inlet to a first path outlet to recirculate air within a wash chamber. The first path inlet may be defined in fluid communication between the wash chamber and the first path outlet. The second fluid path may extend from a second path inlet to a second path outlet to direct ambient air to the wash chamber. The second path inlet may be defined in fluid communication between an ambient environment surrounding the dishwashing appliance and the second path outlet. The second path outlet may be defined in fluid communication between the second path inlet and the wash chamber downstream from the second path inlet.Type: ApplicationFiled: November 4, 2019Publication date: May 6, 2021Inventors: Ramasamy Thiyagarajan, Matthew David Mersch
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Patent number: 10945584Abstract: A drying system includes a tub defining a wet chamber with an outlet defined in the tub. The drying system also includes a heat exchanger comprising a plurality of heat pipes. Each heat pipe of the plurality of heat pipes has an evaporator section and a condenser section. The evaporator sections of the plurality of heat pipes define an evaporator section of the heat exchanger. The condenser sections of the plurality of heat pipes of the heat exchanger define a condenser section of the heat exchanger. The evaporator section of the heat exchanger is in fluid communication with the outlet to receive a flow of humid air from the outlet. The dishwashing appliance also includes an inlet defined in the tub. The inlet is configured to receive a flow of dry air from the condenser section of the heat exchanger.Type: GrantFiled: July 30, 2018Date of Patent: March 16, 2021Assignee: Haier US Appliance Solutions, Inc.Inventors: Ramasamy Thiyagarajan, Adam Christopher Hofmann, Abhisek Agrawal
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Patent number: 10912442Abstract: A dishwashing appliance includes a tub defining a wash chamber. An inlet is defined in the tub and provides air flow into the wash chamber. An air handler selectively urges air through the inlet in one of a first direction and a second direction different from the first direction. The air flows from the inlet and through the wash chamber of the tub along a first defined path when the air handler urges air through the inlet in the first direction, and the air flows from the inlet and through the wash chamber of the tub along a second defined path when the air handler urges air through the inlet in the second direction.Type: GrantFiled: January 3, 2019Date of Patent: February 9, 2021Assignee: Haier US Appliance Solutions, Inc.Inventors: Thiyagarajan Sankaran Veerabhagu, Ramasamy Thiyagarajan, Timothy Kopera
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Patent number: 10834851Abstract: A washing machine appliance is provided herein. The washing machine appliance may include a cabinet, a heat-generating electronic circuit board, and a heat pipe. The cabinet may extend in a transverse direction from a front end to a rear end. The cabinet may define an interior volume therein. The cabinet may include a metal back panel positioned at the rear end and defining at least a portion of the interior volume. The heat-generating electronic circuit board may be positioned within the interior volume. The heat pipe may extend in conductive thermal communication between the heat-generating electronic circuit board and the metal back panel.Type: GrantFiled: September 4, 2018Date of Patent: November 10, 2020Assignee: Haier US Appliance Solutions, Inc.Inventors: Timothy Patrick Martin, Ramasamy Thiyagarajan, Troy Marshall Wright
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Patent number: 10827905Abstract: A dishwasher appliance includes a tub that defines a wash chamber. A door is mounted to the tub for selectively accessing the wash chamber of the tub. A vortex air dryer has four vents and a fan. The four vents are positioned and oriented for forming a vortex air flow in the wash chamber during operation of the fan.Type: GrantFiled: September 4, 2018Date of Patent: November 10, 2020Assignee: Haier US Appliance Solutions, Inc.Inventors: Thiyagarajan Sankaran Veerabhagu, Ramasamy Thiyagarajan, Timothy Kopera