# US 2025/0375784 A1 · A locking mechanism, a dispensing pump assembly, a container system and a method for using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0375784 A1 - Document ID: US20250375784A1 - Status: Published application - Kind: A1 - Application number: 18/877,008 - Filed: 2023-06-21 - Published: 2025-12-11 - Earliest claimed: 2022-06-23 - Assignees: Silgan Dispensing Systems (Wuxi) Co. Ltd. - Applicants: Silgan Dispensing Systems (Wuxi) Co. Ltd. - Inventors: Xi Li; Li Zhang; Linxing MAO - Web page: https://patentgrep.com/patent/US20250375784A1 ## CPC - B05B 11/1059: {Means for locking a pump or its actuation means in a fixed position (B05B11/1091 takes precedence)} - B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D) ## Abstract The present invention relates to a locking mechanism, a dispensing pump assembly, a container system and a method for using the same. A locking mechanism for a dispensing pump comprises: a movable button actuatable by a user to move between an initial position and a pressed position; a slidable switch embedded in the button, being actuatable by the user to move between an open position and a close position, such that the locking mechanism changes between an unlocking state and a locking state; and a rotatable annular member cooperating with the switch, which can be actuated by the switch such that a sliding movement of the switch causes rotation of the annular member, wherein: when the locking mechanism is in the unlocking state, the annular member allows the user to actuate the button so as to enable a dispensing; and when the locking mechanism is in the locking state, the annular member prevents the movement of the button so as to prohibit the dispensing. ## Claims ### Claim 1 A locking mechanism for a dispensing pump, comprising: a movable button actuatable by a user to move between an initial position and a pressed position; a slidable switch embedded in the button, the switch being actuatable by the user to move between an open position and a close position, such that the locking mechanism changes between an unlocking state and a locking state; a rotatable annular member cooperating with the switch, which can be actuated by the switch such that a sliding movement of the switch causes rotation of the annular member, wherein: when the locking mechanism is in the unlocking state, the annular member allows the user to actuate the button so as to enable a dispensing; and when the locking mechanism is in the locking state, the annular member prevents the movement of the button so as to prohibit the dispensing. ### Claim 2 (depends on 1) The locking mechanism according to claim 1, wherein the locking mechanism further comprises an actuator located below the button for actuating the dispensing pump, the actuator being connected with the button and actuated by the button, wherein the actuator comprises at least one guiding post, at least a portion of which is received in a corresponding guiding groove of the annular member, and the guiding post is movable between a first end and a second end of the guiding groove relative to the annular member. ### Claim 3 (depends on 2) The locking mechanism according to claim 2, wherein: when the locking mechanism is in the locking state, the guiding post is located at the first end of the guiding groove which prevents the guiding post from moving down; and when the locking mechanism is in the unlocking state, the guiding post is located at the second end of the guiding groove which allows the guiding post to move down. ### Claim 4 (depends on 3) The locking mechanism according to claim 3, wherein the first end of the guiding groove comprises a barrier at the bottom to prevent the guiding post from moving down, and the second end of the guiding groove is open at the bottom to allow the guiding post to move down. ### Claim 5 (depends on 2) The locking mechanism according to claim 2, wherein the actuator comprises a first guiding post and a second guiding post; the annular member comprises a first guiding groove and a second guiding groove receiving the first guiding post and the second guiding post, respectively; when the annular member is actuated, the first guiding post and the second guiding post move in the same direction with respect to the annular member. ### Claim 6 (depends on 2) The locking mechanism according to claim 2, wherein the switch comprises: a base; a slider extending outward from the base; and an engaging portion located on the inside of the base, which is configured to engage with the annular member so as to actuate the annular member. ### Claim 7 (depends on 6) The locking mechanism according to claim 6, wherein the switch further comprises an extension portion extending inward from the engaging portion, and when the switch is in an intermediate position, the extension portion is configured to extend inward and slightly exceed an outer end of a tab of the actuator, such that when the extension portion passes the tab upon sliding the switch, it rubs slightly against the tab, thereby producing a crisp sound and/or providing the user with a tactile prompt that a switchover has been implemented. ### Claim 8 (depends on 6) The locking mechanism according to claim 6, wherein the switch is located on only one side of the locking mechanism. ### Claim 9 (depends on 2) The locking mechanism according to claim 2, wherein the annular member comprises: a central through-opening, through which the dispensing pump passes; at least one lateral flange configured to limit the stroke of the annular member; and a receiving portion configured to receive the engaging portion of the switch and to cooperate with it, such that a sliding motion of the switch is converted into a rotational motion of the annular member. ### Claim 10 (depends on 2) The locking mechanism according to claim 2, wherein the button further comprises: a top lid; a first fastener configured to fix the button to an outer cover; a second fastener configured to fix the button to the actuator; a sidewall comprising a window enabling the switch to be visible to the user and through which the slider of the switch extends such that the slider is accessible to the user; a limit stop configured to limit the open position and Close position of the switch; and/or a stroke guide for guiding the movement of the switch such that the switch moves along a predetermined travel path. ### Claim 11 (depends on 2) The locking mechanism according to claim 2, wherein the actuator further comprises: a central channel for receiving the dispensing pump, inside of which comprises a connector in fluid communication with the dispensing pump; and a lateral channel for receiving a nozzle so as to enable the dispensing by means of the dispending pump via the nozzle when the actuator moves down. ### Claim 12 (depends on 1) The locking mechanism according to claim 1, wherein the locking mechanism further comprises an outer cover which receives the button on the inside and allows the button to move down, the outer cover further comprising a nozzle guiding channel for receiving and guiding the movement of the nozzle. ### Claim 13 (depends on 12) The locking mechanism according to claim 12, wherein an outer surface of the switch and/or the button do not exceed an outer surface of the outer cover. ### Claim 14 (depends on 12) The locking mechanism according to claim 12, wherein the outer cover and/or the button have a rectangular outer contour. ### Claim 15 (depends on 1) A dispensing pump assembly, comprising: the locking mechanism according to claim 1; a nozzle for dispensing a material; a dispensing pump for pumping the material, which is connected to the actuator; and a collar connected with the dispensing pump and located outside of the dispensing pump, which is also connected to the outer cover and the container, and the collar further comprises at least one lateral opening which limits the stroke of a lateral flange of the annular member. ### Claim 16 (depends on 15) A container system comprising: the dispensing pump assembly according to claim 15; a tube connected with a lower end of the dispensing pump; and a container which defines a storage chamber for containing a material, the container being hermetically connected with the dispensing pump assembly at the top circumference, wherein the tube extends into the container, and when the switch is at the open position, pressing the button allows the material to be dispensed from the container. ### Claim 17 (depends on 16) The container system according to claim 16, wherein the container has a rectangular outer contour. ### Claim 18 (depends on 16) A method for using the container system according to claim 16, comprising: sliding the switch from a close position to an open position such that the locking mechanism switches from a locking state to an unlocking state, and at the same time, the guiding post of the actuator moves from the first end of the guiding groove to its second end relative to the annular member; and pressing the button to move it down from an initial position to a pressed position such that the actuator is caused to actuate the dispensing pump to dispense the material from the container via the nozzle. ### Claim 19 (depends on 18) The method according to claim 18, wherein when an intermediate position is passed by upon sliding the switch, the extension portion of the switch passes by and slightly rubs against the tab of the actuator, thereby producing a crisp sound and/or providing the user with a tactile prompt that a switchover has been implemented.