A trigger-type ejector includes: a pressure storage chamber formed in a nozzle head and communicating with a flow path through a communication hole; a pressure storage plunger including a large-diameter pressure receiving portion opposite a small-diameter pressure receiving portion and being movable between a close position where an ejection hole is closed and an open position where the ejection hole is opened; and a biasing member disposed in the pressure storage chamber and biasing the pressure storage plunger toward the close position, the trigger-type ejector being configured such that, when a pressure of a liquid in the pressure storage chamber becomes equal to or greater than a predetermined value, the pressure storage plunger moves from the close position to the open position against a biasing force of the biasing member and thus a liquid in the pressure storage chamber is ejected from the ejection hole to the outside.

A spring foam pump and a packaging container including the same are provided. Under the push of the pressing head (2), the liquid pump piston (71) and the air pump piston (72) force the fluid and gas in the liquid pump chamber (5) and the air pump chamber (6) to enter the gas-liquid mixing chamber (4) to form foam, respectively. Under the action of pressure, the foam flows out after passing through the foam channel (21). The sealing requirement is not very high, and it can be used in various environments. The packaging container comprises a container capable of containing fluid and the spring foam pump.

[Object] To provide a pump dispenser which allows accurate determination of a direction of spraying of liquid without a nozzle part moving toward a higher or lower position and, furthermore, whose trigger is excellent in operability. [Solution] The present invention is directed to an F valve attachment structure for, in a pump dispenser that causes a piston part to slide to apply pressure to liquid inside a cylinder part including an F valve and causes the liquid to squirt out from a nozzle part via an S valve, attaching the F valve to the inside of the cylinder part with use of a valve stopper, the F valve including: a valve body part; and a rod-like part extending upward from the valve body part, wherein the valve body part has a plurality of guide pieces and check pieces therearound, the valve stopper has a hole and notches in a ceiling part of the valve stopper, the notches allowing the guide pieces to pass through the notches, the valve stopper is fixable inside the cylinder part, when the valve body part of the F valve is inserted through the hole of the valve stopper, the check pieces are allowed to elastically pass through the hole, and after insertion, the check pieces of the F valve come into contact with the ceiling part of the valve stopper to be retained.

A trigger-type liquid ejector includes an ejector main body and a nozzle member. The ejector main body includes a vertical supply pipe, an ejection barrel and a trigger mechanism; and the trigger mechanism includes a main piston and a main cylinder. In the trigger-type liquid ejector, the ejector main body includes a connection tube, a closing-off plug, a reservoir cylinder, a reservoir plunger and a reservoir valve, and the ejection barrel extends forward from the reservoir cylinder.

A pump dispenser comprising a container having a neck (6) to which the pump is attached. A pump body (1) has an outward flange (91) through which it is supported on the edge of the container neck (6). A body/neck rotation stop mechanism (64,7) is provided by an interlock engagement between the pump body and the container neck, and has widely-spaced interlock projections (64) on the container neck (6), e.g. one or two projections, each having a circumferentially-directed abutment face (642). A series of spaced interlock teeth (71) projects down from the outward flange (91) of the pump body and these have respective abutment faces (711) to engage the neck projections and limit relative rotation of the pump body and neck. This can assure reliable action of a plunger-locking mechanism of the dispenser.

A method of producing a pump body for dispensing fluid product, the body having a casing with an inlet orifice which includes a valve having a ball retained in a cage, the method includes: moulding the casing by forming ribs in relief having two lateral faces which join together along an internal edge and an upper end having a free upper surface; introducing the ball into the cage below the upper ends; deforming the upper ends to form visors extending radially towards the interior of the casing to imprison the ball in the cage; with the ribs being formed with their free surface extending from one lateral edge to the other by forming a dome having a top, with the deformation of the upper ends being provided by causing a matrix to bear against the tops then via axial displacement from the matrix on a stroke for crushing domes.

An actuator for a hand operated foam dispensing pump that utilizes a folding nozzle is presented. The folding nozzle of the actuator is configured so as to lock the actuator in place and prevent operation of the pump when the nozzle is folded. The actuator substantially reduces pump closure loosening (back-off) and nozzle breakage during shipping of a filled product by eliminating trigger handles or other conventional nozzle types which protrude from the side of the actuator. As such, the new actuator is particularly well-suited for use in e-commerce where the shipping of unboxed products is becoming increasingly common. The actuator is configured such that actuator depression (actuation) cannot occur when the folding nozzle is in a folded position.

System for refilling with liquid a second inverted bottle disposed above a first bottle containing liquid via a filling interface, disposed between the two bottles, comprising a valve in two elastically deformable parts. Depending on the intensity of the application of a downward vertical force on the second bottle, the pump of this bottle is first depressed to open the vent under a first force, and, then, the valve deforms elastically under a second, more intense force in order to cause the transfer of the liquid from the first to the second bottle.

A fluid product dispenser having a fluid product reservoir (R) having a neck (R3), and an assembly (E) having a dispensing member (P), such as a pump or a valve, the dispenser having at least one cam track (22) and at least one lug (41) designed to follow the cam track (22) and a spring (5) for urging the lug (41) out of the cam track (22), the cam track (22) being integral with one of the fluid product reservoir (R) and the assembly (E) and the lug being integral with the other of the fluid product reservoir (R) and the assembly (E). One of the cam track (22) and the lug (41) is formed by a rotary member (4).

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.