A coupling device is disclosed for coupling a container to a closure. The container has a container sidewall extending between a first container end and a second container end. A container undercut is defined in an outer surface of the container sidewall. The closure has a closure sidewall extending between a first closure end and a second closure end. A closure outer sidewall is located radially outward from the closure sidewall and defines a slot between the closure sidewall and the closure outer sidewall. The second container end is received within the slot of the closure. A major projection and a major depression are located between the second container end and the slot of the closure cooperating for securing the closure to the container. A minor projection and a minor depression located between the container sidewall and the closure sidewall for cooperating for additionally securing the closure to the container.

A dispensing pump includes a polymer compression spring assembly. The dispensing pump includes a pump base, and a dispensing head having a piston stem. The polymer compression spring assembly includes a slotted tubular spring element and first and second loading cones received at opposing ends of the slotted tubular spring element. The first loading cone is fixed relative to the pump base while the second loading cone is axially movable with the piston stem and dispensing head. The tubular spring element is disposed coaxially about the piston stem between the cones. When the dispensing head is compressed, the loading cones axially compress toward each other whereby the slotted tubular spring element radially expands to create an opposing contraction force, and in turn, an axial extension force. When released, the spring element elastically contracts to its at rest shape, returning the loading cones and dispensing head to their at rest positions.

A dispenser includes a body having a an exterior surface, an interior surface, a first chamber, a first opening in fluid communication with the first chamber and extending through the body, a second opening in fluid communication with the first chamber and extending through the body, a first valve and a second valve disposed on the body, the valves having a closed and an open configuration, and an actuator disposed at least partially within the first chamber. The actuator may be configured to increase and decrease pressure in the first chamber such that the first valve and the second valve change from their respective closed configurations to their respective open configurations and from their respective open configurations to their respective closed configurations. When in the closed configuration, flow through the valves is impeded.

An eco-friendly pumping device includes a press pumping unit, a bottle, and a replaceable soft bag disposed in the bottle. An opening part of the replaceable soft bag is directly connected to the press pumping unit. The interior of the replaceable soft bag forms a closed space and a negative pressure state simultaneously when operating the press pumping unit because of vacuum effect. A shape and an inner volume of the flexible bag body are squeezed automatically by external air pressure outside because of vacuum effect as the time of use and amount of use increase. The replaceable soft bag can be directly wedged to the press pumping unit to replace an empty one, so that the fluid material in the replaceable soft bag does not need to be poured and transferred into the bottle, and the fluid material does not contact with hands.

Pump systems and methods are disclosed for removing liquid for hand-portable containers. The pump systems include a moveable piston housed in a main chamber and inlet and outlet valves located at one end of the main chamber, where the inlet and outlet valves open and close in response to movement of the piston.

A pump and a dispensing device with a pump for dispensing a preferably liquid product are proposed, wherein the pump comprises a spring sleeve for a spring, which separates the spring from the product, and/or wherein the pump comprises a sealed spring chamber for a spring.

A pump dispenser having a bottle with a neck and a pump assembly. The pump assembly includes an actuator, a closure connected to the actuator and coupled to the neck of the bottle, a dip tube, and a dual chamber pump. The dual chamber pump includes a piston assembly, a sealing cap, and a housing, which includes a pump chamber, a storage chamber having a cavity, and a core. The sealing cap is rigidly connected to the core and closes the storage chamber at a lower portion such that the substance to be released remains stored in the storage chamber cavity. When the actuator is pushed down for a first time by a user, a piston assembly moves to push down a connecting stem, which pushes down the sealing cap to open the storage chamber for releasing the substance contained in the storage chamber from the bottle.

A dispenser for dispensing a flowable product from a container has a pump module mounted on the container at an opening thereof. The pump module includes a pump body, which defines a pump chamber and a pump chamber inlet for product to flow from the container interior into the pump chamber. A pump actuator is operable in a pumping stroke relative to the pump body to vary the volume of the pump chamber and dispense the product. The pump includes a movable body portion which is operable in a displacement stroke into the container. The movable portion has a displacement body with a product-engaging face directed onto an interior product space of the container upstream of the pump chamber inlet, to assist priming. Below this a disrupter member, a grid of narrow bars, projects to penetrate the product.

A device for dispensing fluid products includes one or more containers, each storing one fluid product, a unique pump provided with a dosage chamber enclosing a dose of mixture of the fluid products, and including an actuating member, and a manifold associating the pump to the containers for dispensing the fluid products. The manifold includes one or more hollow tubes each extending into a container and forming a channel for the flow of the fluid product from the container towards the pump. As well, the tubes of the manifold are rigid and at least one tube of the manifold includes means for regulating the volumetric ratio of the fluid product flow, these regulating means being integrated inside the rigid tube.

[Object] To provide a trigger sprayer including a valve through which liquid flows with very high efficiency. [Solution] The present invention is directed to a trigger sprayer for, in a state of being attached to a container, causing liquid inside the container to be sprayed from a nozzle part 3 through a passage by rotating a trigger part to move a piston part 5 to apply pressure to liquid inside a cylinder portion 42A of a cylinder structure 4, including: an F valve 2 provided in a passage between the cylinder portion 42A and the container; and an S valve 1 provided in a passage section between the cylinder portion 42A and the nozzle part 3, wherein the S valve 1 includes a first valve body 11 and a first valve seat 12, the first valve body 11 is oppressed against the first valve seat 12, and when the first valve body 11 moves away from the first valve seat 12 so that the S valve 1 opens, the first valve body 11 moves in the same direction as the direction that the liquid flows.