A trigger sprayer includes an engine with a piston chamber and an outlet fluid passage, and a piston that slides within the piston chamber and defines an interior bellows chamber. The bellows component is movable in the interior bellows chamber between an uncompressed position in which a fluid volume in the interior bellows chamber is minimized and a compressed position in which the fluid volume is maximized. The trigger sprayer further includes a trigger lever that pivots between a neutral position and an actuated position using a pair of S-shaped trigger springs. Pivotal movement of the trigger lever pushes the piston vertically in the piston chamber to drive fluid from the piston chamber into the interior bellows chamber and move the bellows component from the uncompressed position to the compressed position. Relaxation of the bellows component drives fluid from the interior bellows chamber to the outlet fluid passage.

The invention relates to a dispensing device (2) for dispensing a fluid. The dispensing device (2) comprises a pump device (4) for conveying the fluid from a container (3). The pump device (4) can be actuated preferably by means of an actuating lever (21) of the dispensing device (2) and/or is formed by a flexible bellows (5). Furthermore, a dispenser (1) for dispensing a fluid with a container (3) and a dispensing device (2) is disclosed.

A trigger sprayer includes an engine with a piston chamber and an outlet fluid passage, and a piston that slides within the piston chamber and defines an interior bellows chamber. The bellows component is movable in the interior bellows chamber between an uncompressed position in which a fluid volume in the interior bellows chamber is minimized and a compressed position in which the fluid volume is maximized. The trigger sprayer further includes a trigger lever that pivots between a neutral position and an actuated position using a pair of S-shaped trigger springs. Pivotal movement of the trigger lever pushes the piston vertically in the piston chamber to drive fluid from the piston chamber into the interior bellows chamber and move the bellows component from the uncompressed position to the compressed position. Relaxation of the bellows component drives fluid from the interior bellows chamber to the outlet fluid passage.

A pump container includes: a container body in which contents are accommodated; a pump unit which is coupled to the top part of the container body and ejects the contents accommodated in the container body; a head part which is coupled to the top side of the pump unit and has a contents-moving hole that causes the contents delivered from the pump unit to move upward; a button part which is coupled to the top side of the head part, operates the pump unit according to a user's press, and has a nozzle formed on one side thereof for ejecting the contents, delivered via the contents-moving hole, to the outside; and a pressure-reducing check valve which is disposed between the pump unit and the contents-moving hole and opens or closes the contents-moving hole according to a press on the button part.

Described is a dispenser for dispensing a fluid contained in a plastic bottle, including a ring nut having a cylindrical conduit for sucking the fluid; a concertina-like deformable element including side walls defining a dosing chamber; a ring identifying with the ring nut a locking system defining an operating and non-operating configurations; a dispensing head, which can be pressed by a user and having a collection chamber collecting the fluid flowing from the dosing chamber through a central opening of the ring; first and second shutoff elements defining, respectively, a check valve at the inlet and a check valve at the outlet of the dosing chamber; a locking element interfering with at least one between the first and the second shutoff elements to lock it in the fixed position and thereby occlude the suction conduit and/or the central opening in a stable manner at least in a dispensing configuration.

The invention relates to a closure device comprising a closure wall having a communication conduit passing through it and intended to close the opening of a container of a product and a stopper movable in the duct. The stopper comprises a cavity open on one side of the wall, closed by a bottom and comprising at least one lateral opening. In the closed position, this bottom closes the conduit, and in the open position, the side opening(s) and said bottom exit the conduit, the conduit thus being open in fluid communication through the stopper. The invention also relates to a product refill comprising a container closed by this closure device. It also relates to a dispensing device comprising this refill and a dispensing head.

A trigger sprayer is made from a single grade of polymer capable of being reused as post consumer resin. The design allows for upright and inverted actuation. A pre-compression diaphragm ensures that dispensing stroke delivers a complete and uniform amount of fluid.

To allow application to a structure in which atmospheric air enters a container and to prevent leakage of cosmetics and allow smooth discharge of the cosmetics, there is provided a cosmetic container including a container main body in which contents are accommodated, a pumping apparatus coupled to an opening at an upper end of the container main body and configured to discharge the contents accommodated in the container main body through a pumping action caused by the inherent elasticity of the pumping apparatus a discharge head which is connected to the pumping apparatus to apply a discharge pressure to the pumping apparatus and has an outlet provided at a front end to communicate with the pumping apparatus and allow the contents to exit, and an inflow tube which is connected to the pumping apparatus and extends to an inner bottom of the container main body to allow the contents to enter.

A packaging for storing and dispensing fluid contents comprises a body defining a reservoir, wherein the body comprises a base with an aperture defined therein, a receptacle configured to store the fluid contents therein is received within the reservoir of the body, and a one-way valve positioned in the aperture. The packaging further comprises an actuator comprising a channel and an opening configured to dispense the fluid contents out of the packaging. An intermediate connecting member comprising a first connection portion configured to engage the actuator, a bellow, a second connection portion configured to engage the body, and a duckbill valve integrally formed thereon extends between the body and the actuator. The duckbill valve is aligned with the channel, and the fluid contents of the receptacle flow out of the duckbill valve, through the channel, and out of the opening upon a user applying an input to the actuator.

The invention discloses an elastic bag foam pump, which comprises a bottle cover (1), an elastic bag (2), a piston rod (3), a piston (4), a liquid inlet one-way valve (6) and a gas inlet one-way valve (8), wherein the elastic bag (2) is a hollow thin-wall bag; the bag opening of the elastic bag is provided with a connection part (2.1); the connection part (2.1) is mounted on an annular wall (1.1) used for connection on the bottle cover (1) in a sealing way; the elastic bag (2) is provided with an inlet hole (1.8) through which an inlet pipe (2.4) is communicated with the bottle cover (1); the gas inlet one-way valve (8) is mounted at one side of the inlet hole (1.8); a piston rod upper end (3.1) is fixed to an upper wall connection part (2.3) of the elastic bag (2); the lower end of the piston rod (3) is provided with the piston (4); and a cylinder (1.2) is arranged in the middle of the bottle cover (1). The elastic bag foam pump has the advantages of simple structure, low cost and easy to use.