# US 11,299,835 B2 · Laundry treating apparatus and control method for the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,299,835 B2 - Document ID: US11299835B2 - Status: Granted - Kind: B2 - Application number: 16/818,674 - Filed: 2020-03-13 - Published: 2020-07-02 - Granted: 2022-04-12 - Earliest claimed: 2016-12-16 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Kyosoon Chae; Dongsoo Lee; Sangwook Lee - Web page: https://patentgrep.com/patent/US11299835B2 ## CPC - D06F 34/20: Parameters relating to constructional components, e.g. door sensors - A47L 15/4214: {Water supply, recirculation or discharge arrangements; Devices therefor} - A47L 15/44: Devices for adding cleaning agents; {Devices for dispensing cleaning agents, rinsing aids or deodorants} - D06F 23/04: and rotating or oscillating about a vertical axis - D06F 29/00: Combinations of a washing machine with other separate apparatus in a common frame or the like, e.g. with rinsing apparatus - D06F 33/47: Responding to irregular working conditions, e.g. malfunctioning of pumps (safety arrangements D06F37/42) - D06F 37/28: Doors; Security means therefor - A47L 15/00: Washing or rinsing machines for crockery or tableware - D06F 21/06: about a vertical axis - D06F 23/00: 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 (with further drying means D06F25/00; program-control aspects D06F33/00) - 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 31/00: Washing installations comprising an assembly of several washing machines or washing units, e.g. continuous flow assemblies - D06F 34/24: Liquid temperature - D06F 37/304: {Arrangements or adaptations of electric motors} - D06F 37/40: for driving the receptacle and an agitator or impeller, e.g. alternatively {(D06F37/304, D06F37/308 take precedence)} - D06F 37/42: Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door - D06F 39/14: Doors or covers; Securing means therefor - D06F 2103/40: Opening or locking status of doors - D06F 2105/54: Changing between normal operation mode and special operation modes, e.g. service mode, component cleaning mode or stand-by mode - D06F 2105/60: Audible signals - D06F 2105/62: Stopping or disabling machine operation - D06F: LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES - A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08) ## Abstract A laundry treating apparatus includes a cabinet with first and second cabinet doors. A first washing apparatus processes laundry that is placed through the first cabinet door at the front. A second washing apparatus processes laundry that is placed through the second cabinet door at the top. The second washing apparatus includes: a tub that holds water and has an opening at a top that is accessible through the second opening of the cabinet; a tub cover that covers the top of the tub and defines an inlet through which the tub is accessible; a tub door on the tub cover that opens or closes the inlet of the tub cover separately from the second cabinet door opening or closing the second opening; a drum inside the tub configured to rotate about a vertical shaft; and a first sensor that generates a signal based on the tub door being open. ## Claims ### Claim 1 A laundry treatment apparatus comprising: a cabinet provided with an opening at a top of the cabinet; a cabinet door provided in the cabinet and configured to open or close the opening; a tub provided in the cabinet to hold water; a tub cover coupled to the top of the tub, wherein a height of the tub is provided smaller than a width of the tub; an inlet provided to penetrate the tub cover to communicate with the opening; a tub door provided at the tub cover to open or close the inlet, and provided separately from the cabinet door; a drum provided inside the tub and configured to rotate about a vertical rotational shaft; a driving unit coupled to the vertical rotational shaft and configured to rotate the vertical rotational shaft; a first sensor provided on at least one of the cabinet door, the tub cover, or the tub door and configured to sense whether the tub door is in an open state or in a closed state; and a second sensor provided on at least one of the cabinet door or the cabinet and configured to sense whether the cabinet door is in an open state or in a closed state. ### Claim 2 (depends on 1) The laundry treatment apparatus of claim 1, wherein the driving unit is controlled such that an operating of the driving unit is stopped or the operating is impossible based on that the second sensor senses the opening of the cabinet door. ### Claim 3 (depends on 1) The laundry treatment apparatus of claim 1, further comprising a display unit configured to notify the open state of the cabinet door based on that the second sensor senses the opening of the cabinet door. ### Claim 4 (depends on 1) The laundry treatment apparatus of claim 1, wherein the driving unit is controlled such that an operating of the driving unit is stopped or the operating is impossible based on that the first sensor senses the opening of the tub door. ### Claim 5 (depends on 1) The laundry treatment apparatus of claim 1, further comprising a display unit configured to notify the open state of the tub door based on that the first sensor senses the opening of the tub door. ### Claim 6 (depends on 1) The laundry treatment apparatus of claim 1, wherein the driving unit is controlled such that an operating of the driving unit is impossible based on that the first sensor senses the opening of the tub door and the second sensor senses the opening of the cabinet door. ### Claim 7 (depends on 1) The laundry treatment apparatus of claim 1, further comprising a display unit configured to notify the open state of the tub door and the cabinet door based on that the first sensor senses the opening of the tub door and the second sensor senses the opening of the cabinet door. ### Claim 8 (depends on 1) The laundry treatment apparatus of claim 1, wherein the drive unit is controlled to stop operation based on that the second sensor senses the opening of the cabinet door during operation of the drive unit. ### Claim 9 (depends on 1) The laundry treatment apparatus of claim 1, wherein the drive unit is controlled to stop operation based on that the first sensor senses the opening of the tub door during operation of the drive unit. ### Claim 10 (depends on 1) The laundry treatment apparatus of claim 1, wherein the tub door is provided under the cabinet door. ### Claim 11 (depends on 1) The laundry treatment apparatus of claim 1, wherein the cabinet door is provided spaced apart from the top of the tub door. ### Claim 12 (depends on 1) The laundry treatment apparatus of claim 1, further comprising: a first hinge rotatably coupling the cabinet door to the cabinet; and a second hinge rotatably coupling the tub door to the tub cover, wherein the first hinge and the second hinge are provided in parallel with each other. ### Claim 13 (depends on 1) The laundry treatment apparatus of claim 1, wherein the tub door includes a sealing unit provided to be in contact with an inner circumferential surface or an outer circumferential surface of the inlet.