# US 12,006,621 B2 · Washer appliance having door with removable service tray > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,006,621 B2 - Document ID: US12006621B2 - Status: Granted - Kind: B2 - Application number: 17/389,512 - Filed: 2021-07-30 - Published: 2023-02-02 - Granted: 2024-06-11 - Earliest claimed: 2021-07-30 - Assignees: Haier US Appliance Solutions, Inc. - Applicants: Haier US Appliance Solutions, Inc. - Inventors: Adam Raymond Mora; Venkata Chakradhar Rangu; Neelapala Gopinath Yadav - Web page: https://patentgrep.com/patent/US12006621B2 ## CPC - D06F 39/14: Doors or covers; Securing means therefor - D06F 23/04: and rotating or oscillating about a vertical axis - D06F 37/24: in machines with a receptacle rotating or oscillating about a vertical axis - E05D 7/081: the pivot axis of the wing being situated near one edge of the wing, especially at the top and bottom, e.g. trunnions - E05F 1/1207: {with a coil spring parallel with the pivot axis} - E05F 1/1215: {with a canted-coil torsion spring} - E05F 3/20: in hinges - E05F 5/02: specially for preventing the slamming of {swinging} wings {during final closing movement, e.g. jamb stops} - D06F 17/06: by rotary impellers - E05Y 2600/626: Plates or brackets - E05Y 2900/312: for washing machines or laundry dryers - D06F: LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES - E05D: HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS (pivotal connections in general F16C11/00) - E05F: DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING - E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF ## Abstract A washing appliance having a removable service tray. The tray may include a cartridge removably received within a door of the appliance. A spring assembly may be positioned within the cartridge for assisting in opening the door. The cartridge and its components may be concealed from the view of a user at the front of the appliance. ## Claims ### Claim 1 A washing appliance, comprising: a cabinet defining a vertical direction, a lateral direction extending between opposing sides, and a transverse direction extending between a front and back; a wash tub positioned in the cabinet and defining a wash chamber accessed through an opening positioned over the wash chamber; a wash drum rotatably mounted within the wash chamber and configured for receiving articles for washing; a door positioned at the opening, the door configured for selectively pivoting between an open position allowing access to the wash chamber through the opening and a closed position in which the door covers the opening, the door defining an interior; a cartridge removably received within the interior of the door, the cartridge defining a rear-facing opening providing access to a cartridge interior, the cartridge extending longitudinally along the lateral direction between opposing ends; a plurality of fasteners positioned in the cartridge interior and releasably attaching the cartridge with the door; a pair of rotatable stanchions positioned at the opposing ends of the cartridge, the rotatable stanchions removably connected with the cabinet; and a spring assembly positioned within the interior of the cartridge and connected with the pair of rotatable stanchions, wherein the spring assembly is configured to assist in moving the door to the open position, wherein the spring assembly comprises a pair of axles positioned at opposing ends of the cartridge, the pair of axles connected with the pair of rotatable stanchions so that the pair of axles and pair of rotatable stanchions rotate together about an axis that is parallel to the lateral direction; and wherein the pair of axles are contained entirely within the cartridge interior and are positioned within the pair of torsional springs. ### Claim 2 (depends on 1) The washing appliance of claim 1, wherein the cartridge further comprises a plurality of fastener bosses configured for orienting the fasteners along the transverse direction. ### Claim 3 (depends on 1) The washing appliance of claim 1, wherein the cartridge further comprises a nylon reinforced plastic. ### Claim 4 (depends on 1) The washing appliance of claim 1, where the cartridge is configured such that upon removal of the fasteners, the cartridge can be completely removed from the door by sliding along the transverse direction. ### Claim 5 (depends on 1) The washing appliance of claim 1, wherein the spring assembly further comprises a pair of torsional springs, contained entirely within the cartridge interior, positioned at opposing ends of the cartridge and configured to resist movement of the door into the closed position. ### Claim 6 (depends on 1) The washing appliance of claim 1, wherein the fasteners comprise screws or bolts each having a longitudinal axis oriented along the transverse direction when the cartridge is received into the door. ### Claim 7 (depends on 1) The washing appliance of claim 1, wherein the door comprises a transparent material forming a window through which a user can observe the wash chamber. ### Claim 8 A washing appliance, comprising: a cabinet; a wash tub supported by the cabinet and defining a wash chamber accessed through an opening positioned over the wash chamber; a wash drum rotatably mounted within the wash chamber and configured for receiving articles for washing; a door positioned at the opening, the door configured for selectively pivoting about a longitudinal axis between an open position and a closed position; a cartridge removably attached to the door, the cartridge having a top surface covered at least partially by the door, the cartridge having a cartridge interior, the cartridge extending longitudinally along a lateral direction between opposing ends, wherein the door defines an interior near the longitudinal axis into which the cartridge is removably received; at least one fastener releasably attaching the cartridge with the door; a pair of rotatable stanchions positioned at the opposing ends of the cartridge, the stanchions removably connected with the cabinet; and a spring assembly positioned within the cartridge interior and connected with the pair of rotatable stanchions, wherein the spring assembly provides assistance in moving the door to the open position, wherein the spring assembly comprises a pair of axles positioned at opposing ends of the cartridge and contained entirely within the cartridge interior, the pair of axles connected with the pair of rotatable stanchions so that the pair of axles and pair of rotatable stanchions rotate together about an axis that is parallel to the lateral direction. ### Claim 9 (depends on 8) The washing appliance of claim 8, wherein the spring assembly further comprises a pair of torsional springs positioned at opposing ends of the cartridge, contained entirely within the cartridge interior, and configured to resist movement of the door into the closed position. ### Claim 10 (depends on 8) The washing appliance of claim 8, wherein the pair of axles are positioned within the pair of torsional springs. ### Claim 11 (depends on 8) The washing appliance of claim 8, further comprising a dampener connected with the spring assembly and configured for slowing movement of the door between the open position and the closed position. ### Claim 12 (depends on 8) The washing appliance of claim 8, wherein the least one fastener comprises a plurality of fasteners, and wherein the cartridge further comprises a plurality of fastener bosses configured for orienting the plurality of fasteners along the transverse direction and into the door. ### Claim 13 (depends on 12) The washing appliance of claim 12, where the cartridge is configured such that upon removal of the plurality of fasteners, the cartridge can be completely taken out of the door by moving the cartridge along the transverse direction. ### Claim 14 (depends on 8) The washing appliance of claim 8, wherein the at least one fastener comprises screws or bolts each having a longitudinal axis oriented along the transverse direction when the cartridge is received into the door. ### Claim 15 (depends on 8) The washing appliance of claim 8, wherein the door comprises a transparent material forming a window through which a user can observe the wash chamber. ### Claim 16 A washing appliance, comprising: a cabinet defining a vertical direction, a lateral direction extending between opposing sides, and a transverse direction extending between a front and back; a wash tub positioned in the cabinet and defining a wash chamber accessed through an opening positioned over the wash chamber; a wash drum rotatably mounted within the wash chamber and configured for receiving articles for washing; a door positioned at the opening, the door configured for selectively pivoting between an open position allowing access to the wash chamber through the opening and a closed position in which the door covers the opening; a cartridge removably connected with the door, the cartridge defining a rear-facing opening providing access to a cartridge interior, the cartridge extending longitudinally along the lateral direction between opposing ends; a plurality of fasteners positioned in the cartridge interior and releasably attaching the cartridge with the door; a pair of rotatable stanchions positioned at the opposing ends of the cartridge, the rotatable stanchions removably connected with the cabinet; and a spring assembly positioned within the interior of the cartridge, the spring assembly comprising a pair of axles and a pair torsional springs, wherein each of the rotatable stanchions is connected to an end of one of the axles at opposing ends of the cartridge so that the pair of axles and pair of rotatable stanchions rotate together about an axis that is parallel to the lateral direction.