A pump includes a housing forming a chamber; a dispensing opening; and a regulator fixedly arranged in the chamber. The regulator includes an inner valve for regulating a flow of liquid between the container and the chamber; an outer valve for regulating a flow of liquid between the chamber and the dispensing opening; a stem resilient along its length, sideways bendable, and extending in a longitudinal direction of the housing between the inner valve and the outer valve; and a displacement guide located at an outer portion of the stem on an inner side of the outer valve. An outer perimeter of the displacement guide and a portion of an internal surface of a guide region located adjacent the displacement guide are adapted to transfer the sideways bending of the stem to a relative displacement between the outer valve and the housing along the longitudinal direction of the housing.

A fluid dispenser member, such as a pump, having a body (11) for mounting in the opening of a fluid reservoir so as to take fluid therefrom. The body (11) has a fluid chamber (15) that defines a fluid inlet in the form of a socket (12). The dispenser member includes a dip tube (2) for extending into the fluid reservoir so as to take fluid therefrom, the dispenser member further having a reducer sleeve (3) that internally receives an end (21) of the dip tube (2), and that is engaged axially in the socket (12) of the body (11), such that fluid communication is established between the dip tube (2) and the chamber (15) of the body (11). The dip tube (2) presents an outside diameter less than 1 mm and is made of a material that is transparent or translucent.

A trigger-type liquid dispenser includes valve member, which is provided in flow path to control liquid to flow in direction in flow path. Valve member includes intake-side check valve, which permits flow of liquid from container side to pump side and prevents flow of liquid from pump side to container side, and discharge-side check valve, which permits flow of liquid from pump side to nozzle side and prevents flow of liquid from nozzle side to pump side. Discharge-side check valve is formed in umbrella shape that is elastically deformable freely in radial direction and has outer circumferential end configured to contact inner circumferential surface of flow path, with contact force of outer circumferential end with respect to inner circumferential surface of flow path being distributed non-uniformly in circumferential direction.

A device for dispensing a fluid, including: a feed pipe, a dispensing pipe arranged in order to convey a fluid in a dispensing direction, a deformable pouch, a feed valve, and a dispensing valve. In an open state the feed valve allows fluid to pass from the feed pipe to the inside of the pouch, and, in a closed state, does not allow this. In an open state the dispensing valve allows fluid to pass from the inside of the pouch to the dispensing pipe, and, in a closed state, does not allow this. The dispensing valve is held in the device by tightening between inner walls of the dispensing pipe.

Disclosed is a spraying apparatus. The disclosed spraying apparatus includes a housing having a flow path from an inlet to an outlet, through which content passes, a pump provided in the housing and configured to extract content from a container for replenishment or discharging the content, a valve provided in the flow path and configured to selectively shield the flow path, in conjunction with movement of the pump, and an inverted extractor provided in the flow path and configured to extract the content from the container, in conjunction with movement of the pump in an inverted state.

A trigger sprayer (100) may include a tube retainer (110) fitted in a valve body (120), a piston (140) fitted in the valve body and an integrated trigger (150) and biasing member (154) connected to the piston and the valve body and biased in part by the attachment of a shroud (130) to the trigger sprayer.

Provided is a trigger dispensing head applicable to a bottle of a trigger dispensing device having a cylinder chamber, a main vent passage, a sleeve, a secondary vent passage, a manually-operable piston, a suction duct, and a dispensing duct. The sleeve is provided with an annular inner sleeve wall delimiting a pressure chamber, and an annular outer sleeve wall externally spaced from the annular inner sleeve wall.

A sprayer for liquids (10) is disclosed with a trigger pump comprising a body (11) which can be applied to the mouth of a container and a liquid delivery nozzle, a pumping chamber (22) being formed in the body (11) which is in communication with the inside of the container and the delivery nozzle (16), through a one-way suction and delivery valve (30), a USD (Upside Down) device being provided rearward of said pumping chamber which allows operation of the sprayer in the upright and upside down position, consisting in a cylindrical chamber (40) closed at the top with a stopper (27) and having at its bottom a hole (44) in communication with said pumping chamber (22), shut off in the Up position by a ball (42) which, in the Down position, frees said hole (44) and slots (47) formed in the wall (46) of the chamber (40), putting the inside of the container into communication with the pumping chamber (42) through said slots (47) and said hole (44), said cylindrical chamber being slanted backwards so as to allow the operation of the sprayer also in horizontal position.

A device for dispensing a fluid, which includes: a feed pipe, a dispensing pipe arranged in order to convey a fluid in a dispensing direction, a deformable pouch, a feed valve, which, in an open state, allows fluid to pass from the feed pipe to the inside of the pouch, and, in a closed state, does not allow this, and a dispensing valve, which, in an open state, allows fluid to pass from the inside of the pouch to the dispensing pipe, and, in a closed state, does not allow this, wherein the dispensing valve is held in the device by tightening between inner walls of the dispensing pipe.

Device for dispensing a fluid, comprising: a feed pipe, a dispensing pipe arranged in order to convey a fluid in a dispensing direction, a deformable pouch, a feed valve, which, in an open state, allows fluid to pass from the feed pipe to the inside of the pouch, and, in a closed state, does not allow this, and a dispensing valve, which, in an open state, allows fluid to pass from the inside of the pouch to the dispensing pipe, and, in a closed state, does not allow this, wherein the dispensing valve is held in the device by tightening between inner walls of the dispensing pipe.