# US 12,601,099 B2 · Dispenser assembly for a laundry treatment appliance > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,601,099 B2 - Document ID: US12601099B2 - Status: Granted - Kind: B2 - Application number: 18/539,747 - Filed: 2023-12-14 - Published: 2025-06-19 - Granted: 2026-04-14 - Earliest claimed: 2023-12-14 - Assignees: Haier US Appliance Solutions, Inc. - Applicants: Haier US Appliance Solutions, Inc. - Inventors: FikreAdam Damtew; Ravisai Vulisi - Web page: https://patentgrep.com/patent/US12601099B2 ## CPC - D06F 39/022: {in a liquid state (D06F39/024 takes precedence)} - D06F 25/00: Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air (control of washing or of washing and drying D06F33/00, D06F34/00; domestic laundry dryers D06F58/00) - D06F 33/37: of metering of detergents or additives - D06F 34/14: Arrangements for detecting or measuring specific parameters - D06F 39/02: Devices for adding soap or other washing agents - D06F 2103/00: Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers - D06F 2103/60: related to auxiliary conditioning or finishing agents, e.g. filling level of perfume tanks - D06F: LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES ## Abstract A laundry treatment appliance includes a cabinet forming a receiving space therein; a tub provided within the receiving space; and a dispenser assembly provided within the receiving space, the dispenser assembly being in fluid communication with the tub. The dispenser assembly includes a drawer body insertable to and retractable from the cabinet and provided adjacent to the tub, the drawer body defining at least one receiving compartment; a removable cartridge selectively positioned within the at least one receiving compartment between an inserted position and a removed position; a dosing compartment provided in the drawer body, wherein the dosing compartment is in fluid communication with the removable cartridge when the removable cartridge is in the inserted position; and a sensor in operable communication with the dosing compartment, the sensor configured to sense a level of fluid within the dosing compartment. ## Claims ### Claim 1 A laundry treatment appliance defining a mutually orthogonal vertical direction, a lateral direction, and a transverse direction, the laundry treatment appliance comprising: a cabinet forming a receiving space therein; a tub provided within the receiving space; and a dispenser assembly provided within the receiving space, the dispenser assembly being in fluid communication with the tub, the dispenser assembly comprising: a drawer body insertable to and retractable from the cabinet and provided adjacent to the tub, the drawer body defining a front region and a middle region provided sequentially along the transverse direction, the drawer body defining a first aperture formed through a bottom surface thereof and a second aperture formed through the bottom surface and spaced apart from the first aperture along the transverse direction, the second aperture being in fluid communication with the front region; at least one receiving compartment provided in the middle region; a removable cartridge selectively positioned within the at least one receiving compartment between an inserted position and a removed position; a dosing compartment provided in the drawer body separate from the at least one receiving compartment, wherein the dosing compartment is in fluid communication with the removable cartridge when the removable cartridge is in the inserted position; and a sensor in operable communication with the dosing compartment, the sensor configured to sense a level of fluid within the dosing compartment. ### Claim 2 (depends on 1) The laundry treatment appliance of claim 1, further comprising: a first valve positioned between the at least one receiving compartment and the dosing compartment, wherein the first valve operably connects with the removable cartridge when the removable cartridge is in the inserted position. ### Claim 3 (depends on 2) The laundry treatment appliance of claim 2, wherein the first valve is a check valve having a normally closed position when the removable cartridge is in the removed position. ### Claim 4 (depends on 1) The laundry treatment appliance of claim 1, further comprising a second valve provided at the dosing compartment apart from the first valve, the second valve being configured to selectively release fluid from the dosing compartment to the tub. ### Claim 5 (depends on 1) The laundry treatment appliance of claim 1, wherein the removable cartridge is a tank defining an additive receiving space therein. ### Claim 6 (depends on 1) The laundry treatment appliance of claim 1, wherein the dispensing assembly further comprises: a cover positioned over the dosing compartment; and a vent opening defined through the cover, the vent opening allowing fluid communication between the dosing compartment and an ambient atmosphere. ### Claim 7 (depends on 6) The laundry treatment appliance of claim 6, wherein the sensor is positioned outside of the dosing compartment along the vertical direction, and wherein the sensor in operable communication with the dosing compartment through vent opening. ### Claim 8 (depends on 1) The laundry treatment appliance of claim 1, wherein the second aperture is positioned closer to the front region than the first aperture and is configured to receive fluid from one or more manual cups in the front region. ### Claim 9 (depends on 1) The laundry treatment appliance of claim 1, wherein the first aperture is positioned below a rear portion of the removable cartridge such that pressing downward on the rear portion causes a front portion of the removable cartridge to rise for removal. ### Claim 10 (depends on 1) The laundry treatment appliance of claim 1, wherein the first aperture extends across an entire lateral width of the drawer body. ### Claim 11 A dispenser assembly for a laundry treatment appliance, the laundry treatment appliance comprising a cabinet and a tub provided within the cabinet, the dispenser assembly defining a vertical direction, a lateral direction, and a transverse direction, the dispenser assembly comprising: a drawer body insertable to and retractable from the cabinet and provided adjacent to the tub, the drawer body defining a front region and a middle region provided sequentially along the transverse direction, the drawer body defining a first aperture formed through a bottom surface thereof and a second aperture formed through the bottom surface and spaced apart from the first aperture along the transverse direction, the second aperture being in fluid communication with the front region; at least one receiving compartment provided in the middle region; a removable cartridge selectively positioned within the at least one receiving compartment between an inserted position and a removed position; a dosing compartment provided in the drawer body separate from the at least one receiving compartment, wherein the dosing compartment is in fluid communication with the removable cartridge when the removable cartridge is in the inserted position; and a sensor in operable communication with the dosing compartment, the sensor configured to sense a level of fluid within the dosing compartment. ### Claim 12 (depends on 11) The dispenser assembly of claim 11, further comprising: a first valve positioned between the at least one receiving compartment and the dosing compartment, wherein the first valve operably connects with the removable cartridge when the removable cartridge is in the inserted position. ### Claim 13 (depends on 12) The dispenser assembly of claim 12, wherein the first valve is a check valve having a normally closed position when the removable cartridge is in the removed position. ### Claim 14 (depends on 11) The dispenser assembly of claim 11, further comprising a second valve provided at the dosing compartment apart from the first valve, the second valve being configured to selectively release fluid from the dosing compartment to the tub. ### Claim 15 (depends on 11) The dispenser assembly of claim 11, wherein the removable cartridge is a tank defining an additive receiving space therein. ### Claim 16 (depends on 11) The dispenser assembly of claim 11, further comprising: a cover positioned over the dosing compartment; and a vent opening defined through the cover, the vent opening allowing fluid communication between the dosing compartment and an ambient atmosphere. ### Claim 17 (depends on 16) The dispenser assembly of claim 16, wherein the sensor is positioned outside of the dosing compartment along the vertical direction, and wherein the sensor in operable communication with the dosing compartment through vent opening. ### Claim 18 (depends on 11) The dispenser assembly of claim 11, wherein the second aperture is positioned closer to the front region than the first aperture and is configured to receive fluid from one or more manual cups in the front region. ### Claim 19 (depends on 11) The dispenser assembly of claim 11, wherein the first aperture is positioned below a rear portion of the removable cartridge such that pressing downward on the rear portion causes a front portion of the removable cartridge to rise for removal. ### Claim 20 (depends on 11) The dispenser assembly of claim 11, wherein the first aperture extends across an entire lateral width of the drawer body.