Patents by Inventor Adam Christopher Hofmann
Adam Christopher Hofmann 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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Publication number: 20240122438Abstract: A dishwasher appliance includes a wash tub that defines a wash chamber, a sump for collecting wash fluid, a wash pump assembly in fluid communication with the sump for circulating the wash fluid, a diverter assembly fluidly coupled to the wash pump assembly for selectively directing the wash fluid, and a hydraulic manifold assembly fluidly coupled to the diverter assembly. The hydraulic manifold assembly includes a lower portion positioned over a diverter housing of the diverter assembly to at least partially define a diverter chamber of the diverter assembly and an upper portion joined to the lower portion to define a filter cleaning manifold and one or more spray arm channels.Type: ApplicationFiled: October 14, 2022Publication date: April 18, 2024Inventors: Kyle Edward Durham, Adam Christopher Hofmann, Craig Curtis
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Publication number: 20240081605Abstract: A dishwasher appliance includes a wash tub, a sump for collecting wash fluid, and a cylindrical filter screen positioned within the sump. A wash pump assembly includes a wash pump impeller and a supply conduit, the wash pump impeller being configured for urging the wash fluid through the cylindrical filter screen and into the supply conduit. A filter cleaning assembly includes a filter cleaning manifold positioned proximate the cylindrical filter screen and in fluid communication with the supply conduit and one or more vertical spray arms extending along the vertical direction adjacent the cylindrical filter screen, the one or more vertical spray arms defining a plurality of outer ports in fluid communication with the filter cleaning manifold, the plurality of outer ports being positioned and oriented for directing the wash fluid at least partially along a circumferential direction about the cylindrical filter screen.Type: ApplicationFiled: September 12, 2022Publication date: March 14, 2024Inventors: Adam Christopher Hofmann, Kyle Edward Durham
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Publication number: 20240081606Abstract: A dishwasher appliance includes a wash tub defining a wash chamber, a sump housing defining a sump for collecting wash fluid, the sump housing defining a drain basin, and a fluid circulation assembly positioned within the sump. The fluid circulation assembly includes a drain cover seated within the drain basin, a wash pump assembly seated on top of the drain cover, a filter cleaning manifold positioned over the wash pump assembly, and a plurality of mechanical fasteners that pass through filter cleaning manifold and into the sump housing to attach the filter cleaning manifold to the sump housing and to secure the wash pump assembly and the filter cleaning manifold within the sump.Type: ApplicationFiled: September 12, 2022Publication date: March 14, 2024Inventors: Kyle Edward Durham, Adam Christopher Hofmann
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Publication number: 20240065521Abstract: A method may include detecting one or more insertion actions for a loading one or more articles into the dishwashing appliance and directing, subsequent to the detected insertion actions, a dishwasher cycle within the dishwashing appliance. The method may also include detecting, subsequent to the dishwasher cycle, one or more removal actions for unloading the one or more articles from the dishwashing appliance. The method may further include evaluating the detected removal actions against the detected insertion actions and directing a user interface of the dishwashing appliance based on the evaluation.Type: ApplicationFiled: August 31, 2022Publication date: February 29, 2024Inventors: Haitian Hu, Adam Christopher Hofmann, Hairong Li
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Publication number: 20240049941Abstract: A method of operating a dishwasher appliance including a drain pump includes detecting a flagged water response state within the dishwasher appliance during a washing operation, ceasing a current cycle segment of the washing operation in response to detecting the flagged water response state, initiating a drain sequence at the drain pump after the current cycle segment has been ceased, determining a next scheduled cycle segment of the washing operation following the current cycle segment in response to initiating the drain sequence, detecting a non-flagged water event following the flagged water response state, and initiating the next scheduled cycle segment of the washing operation in response to detecting the non-flagged water event.Type: ApplicationFiled: August 10, 2022Publication date: February 15, 2024Inventors: Kyle Edward Durham, Adam Christopher Hofmann, Christopher Brandon Ross
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Publication number: 20240048403Abstract: A method of operating a first domestic appliance associated with a user account and a second domestic appliance associated with the user account may include receiving a parameter signal including a parameter value from the first domestic appliance. The method may also identifying the parameter value as corresponding to a sharable parameter. The method further include recording the parameter value within a sharable field set of a pre-constructed table, after which the parameter value may be shared or analyzed further.Type: ApplicationFiled: August 2, 2022Publication date: February 8, 2024Inventors: Haitian Hu, Adam Christopher Hofmann, John Michael Todd, Hairong Li
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Patent number: 11882979Abstract: An appliance includes a tub defining a wash chamber, and a centrifugal pump in fluid communication with the wash chamber. The centrifugal pump includes a motor housing, a motor disposed in the motor housing, and a fluid impeller coupled to the motor. A diffuser housing assembly includes a first diffuser housing portion and a second diffuser housing portion. The first diffuser housing portion includes a groove and the second diffuser housing portion includes an extrusion. A diffuser vane is positioned on the motor housing. The diffuser vane engages in the groove of the first diffuser housing portion. The extrusion of the second diffuser housing portion encloses the diffuser vane into the diffuser housing assembly.Type: GrantFiled: May 27, 2022Date of Patent: January 30, 2024Assignee: Haier US Appliance Solutions, Inc.Inventors: Kyle Edward Durham, Adam Christopher Hofmann
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Publication number: 20230389772Abstract: A dishwashing appliance includes a tub defining a wash chamber, and a pump assembly disposed in the wash chamber. The pump assembly includes a first housing portion mounted to a second housing portion to form a pump housing. A cup of the second housing portion defines an air chamber. A tube extends from the first housing portion into the air chamber of the second housing portion. The tube defines an opening. An electrical wire passes through the tube and into the pump housing. A grommet is positioned in the opening of the tube, and sealingly engages the tube of the first housing portion at the air chamber of the second housing portion. The electrical wire passes through the grommet. A pump is disposed within the pump housing. The pump is in fluid communication with the wash chamber.Type: ApplicationFiled: June 1, 2022Publication date: December 7, 2023Inventors: Kyle Edward Durham, Adam Christopher Hofmann
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Publication number: 20230380655Abstract: An appliance includes a tub defining a wash chamber, and a centrifugal pump in fluid communication with the wash chamber. The centrifugal pump includes a motor housing, a motor disposed in the motor housing, and a fluid impeller coupled to the motor. A diffuser housing assembly includes a first diffuser housing portion and a second diffuser housing portion. The first diffuser housing portion includes a groove and the second diffuser housing portion includes an extrusion. A diffuser vane is positioned on the motor housing. The diffuser vane engages in the groove of the first diffuser housing portion. The extrusion of the second diffuser housing portion encloses the diffuser vane into the diffuser housing assembly.Type: ApplicationFiled: May 27, 2022Publication date: November 30, 2023Inventors: Kyle Edward Durham, Adam Christopher Hofmann
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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: 20230292979Abstract: A dishwashing appliance may include a cabinet, a tub, a spray assembly, a drain pump, and a controller. The tub may be positioned within the cabinet and define a wash chamber. The spray assembly may be positioned within the wash chamber. The drain pump may be in fluid communication with the wash chamber. The controller may be configured to initiate a washing operation. The washing operation may include activating the drain pump for an activation period, deactivating the drain pump for a deactivation period, detecting a first water condition upstream from the drain pump during the deactivation period, detecting, following detecting the first water condition, a second water condition upstream from the drain pump during the deactivation period, comparing the second water condition to the first water condition, and directing the drain pump based on the comparison of the second water condition to the first water condition.Type: ApplicationFiled: March 17, 2022Publication date: September 21, 2023Inventors: Adam Christopher Hofmann, Kyle Edward Durham
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Publication number: 20230263360Abstract: A dishwasher appliance is provided including a door pivotally mounted to a cabinet to provide selective access to a wash chamber and a user interface panel mounted to the door. A controller is in operative communication with the user interface panel and is configured to detect an abnormal button interaction with the user interface panel, determine that at least one cycle operating parameter has changed in response to the abnormal button interaction, and implement a responsive action, such as providing a user notification, seeking user confirmation, and reverting to prior settings if the abnormal button interaction was unintentional and resulted in a change in the cycle operating parameters.Type: ApplicationFiled: February 18, 2022Publication date: August 24, 2023Inventor: Adam Christopher Hofmann
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Patent number: 11445884Abstract: A dishwasher appliance includes a tub that defines a wash chamber for receipt of articles for washing. The dishwasher appliance also includes a lower spray assembly located in the wash chamber and configured to direct a spray of fluid into the wash chamber. The dishwasher appliance further includes an upper spray assembly located in the wash chamber above the lower spray assembly along the vertical direction. The upper spray assembly is configured to direct a spray of fluid into the wash chamber. A sump is positioned at a bottom of the wash chamber for receiving fluid from the wash chamber. The dishwasher appliance further includes a pump in fluid communication with the sump. The pump is configured to draw fluid from the sump. A main conduit extends between the pump and the upper spray assembly. The main conduit includes an upper end and a hole defined in the upper end.Type: GrantFiled: November 30, 2020Date of Patent: September 20, 2022Assignee: Haier US Appliance Solutions, Inc.Inventors: Christopher Brandon Ross, Matthew David Mersch, Adam Christopher Hofmann
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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: 20220167824Abstract: A dishwasher appliance includes a tub that defines a wash chamber for receipt of articles for washing. The dishwasher appliance also includes a lower spray assembly located in the wash chamber and configured to direct a spray of fluid into the wash chamber. The dishwasher appliance further includes an upper spray assembly located in the wash chamber above the lower spray assembly along the vertical direction. The upper spray assembly is configured to direct a spray of fluid into the wash chamber. A sump is positioned at a bottom of the wash chamber for receiving fluid from the wash chamber. The dishwasher appliance further includes a pump in fluid communication with the sump. The pump is configured to draw fluid from the sump. A main conduit extends between the pump and the upper spray assembly. The main conduit includes an upper end and a hole defined in the upper end.Type: ApplicationFiled: November 30, 2020Publication date: June 2, 2022Inventors: Christopher Brandon Ross, Matthew David Mersch, Adam Christopher Hofmann
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Patent number: 11330959Abstract: A dishwasher appliance includes a sump that defines a transition fill level where the cross sectional area of the sump increases. A pressure sensor is operably coupled to the sump for monitoring sump pressure and wash fluid level. A controller opens a water supply valve to provide a flow of water into the sump and monitors the sump pressure using the pressure sensor. The controller determines when the water has reached the transition fill level corresponding to a known transition fill volume. The controller determines a fill flow rate based on the amount of time needed to reach the transition fill volume and uses the fill flow rate to determine a remaining fill time needed to reach a target volume.Type: GrantFiled: February 6, 2020Date of Patent: May 17, 2022Assignee: Haier US Appliance Solutions, Inc.Inventors: Nasib Alhaffar, Adam Christopher Hofmann, Kyle Edward Durham
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Publication number: 20220015602Abstract: A dishwasher or dishwasher door, as provided herein, may include an inner panel and a dispenser assembly. The inner panel may define a stamped hole extending along an aperture axis. The dispenser assembly may be mounted to the inner panel. The dispenser assembly may include a retaining cup, a radial lip, a flat compression gasket, and a discrete bracket. The retaining cup may have an interior surface defining an additive compartment and an exterior surface defining a relief outside of the additive compartment. The retaining cup may be positioned through the stamped hole. The radial lip may be joined to the retaining cup forward from the stamped hole. The flat compression gasket may be disposed about the retaining cup against a front surface of the inner panel. The discrete bracket may be held between a back surface of the inner panel and the relief of the retaining cup.Type: ApplicationFiled: July 15, 2020Publication date: January 20, 2022Inventors: Jeremy Joseph Ryan, Adam Christopher Hofmann
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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: 11160433Abstract: A dishwashing appliance and a spray assembly, as provided herein, may include a manifold body, and a cammed diverter valve. The manifold body may be mountable within a wash chamber. The manifold body may define a fluid inlet, a first spray zone, and a second spray zone. The first spray zone may include a first spray outlet. The second spray zone may include a second spray outlet spaced apart from the first spray outlet. The cammed diverter valve may be mounted within the manifold body and be movable between a first zone position and a second zone position. The first zone position may direct wash fluid to the first spray zone and restrict wash fluid to the second spray zone. The second zone position may direct wash fluid to the second spray zone and restrict wash fluid to the first spray zone.Type: GrantFiled: January 22, 2020Date of Patent: November 2, 2021Assignee: Haier US Appliance Solutions, Inc.Inventors: Austin Horn, Adam Christopher Hofmann, Kyle Edward Durham, Craig Curtis, John Edward Dries
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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