A dispensing pump mechanism is provided. The pump comprises integrally molded temper-evidence part between a container collar and a spout; said collar has multiple off-centre outlet channel for dispensing one or more products from the container; said collar also comprises an integrated air vent to be blocked and opened by the rotation of the spout. The whole pump can be over-molded one-piece structure with elastic parts as being actuating parts. The pump improves the functions of the pump, such as lower restitution rate, less structural parts, lower cost, water/dust proof, lightweight, easy assembly.

A waterproof emulsion pump with an external spring includes a pump body extending into a bottle body, a pump chamber is arranged in the pump body, a locking bottle cover is connected to the pump body, a pumping component is arranged in the pump chamber, and a locking cover is connected to the pump body; a one-way valve is arranged at a lower end of the pump chamber, an upper end of the pumping component is connected with a pressing head capable of driving the pumping component to operate, the pumping component includes an upper pump rod, a spring is arranged between the upper pump rod and the locking cover, a lower end of the upper pump rod is connected with a lower pump rod, a liquid inlet groove opening is formed in the lower pump rod.

The invention is directed to a dispensing device comprising a rigid container, a flexible bladder, and a rigid stopper. The container is adapted to contain a product to be dispensed. The flexible bladder is disposed below and in fluid communication with the container. The bladder comprises a top end, a sidewall extending downwardly from the top end and terminates in a spout. The bladder is in a liquid tight engagement with the container and the product contained in the container is adapted to flow into the bladder. The rigid stopper is disposed within the flexible bladder and comprises a top end, and at least one sidewall extending downwardly from the top end, and terminates in an open bottom end. The stopper comprises a plurality of through holes.

[Object] To provide a trigger-type pump dispenser that makes it possible to prevent an out-of-nozzle squirting phenomenon that occurs at a final stage of sucking up of liquid out of a vessel into a cylinder.

[Solution] A trigger-type pump dispenser A includes a handle structure 1, a nozzle base structure 2 attached to the handle structure 1, a trigger 3, a cylinder structure 4, a cap 5 by which the cylinder structure 4 is held down and attached to the mouth of a vessel, a piston structure 6 that slides inside the cylinder structure 4, an inverted-mortar-shaped lip 61 formed in the piston structure 6, a spring 7 that springs the piston structure 6, a valve case 8 attached to the nozzle base structure 2, a mortar-shaped valve seat 81 formed in the valve case 8, a leak valve 9, attached to a bottom part of the cylinder structure 4, that has a bulging portion 91 at a tip thereof, a first valve FV, and a second valve SV. A movement of the piston structure 6 from top dead center to bottom dead center causes liquid in the cylinder structure 4 to be discharged from a nozzle orifice N. The bulging portion 91 at the tip of the leak valve 9 is disposed to pass through the inverted-mortar-shaped lip 61. A through-hole diameter D1 of the mortar-shaped valve seat 81 of the valve case 8 is smaller than a nozzle orifice diameter D2.

A dispensing pump mechanism is provided. The pump comprises integrally molded temper-evidence part between a container collar and a spout; said collar has multiple off-centre outlet channel for dispensing one or more products from the container; said collar also comprises an integrated air vent to be blocked and opened by the rotation of the spout. The whole pump can be over-molded one-piece structure with elastic parts as being actuating parts. The pump improves the functions of the pump, such as lower restitution rate, less structural parts, lower cost, water/dust proof, lightweight, easy assembly.

The invention relates to a dev ice for applying a viscous substance, in particular for the purposes of cosmetics, writing, painting, drawing, and/or marking, with a tank (40) for tire substance, an application apparatus (2), and a conveying device (3), which is configured such as to convey the substance out of the tank (40) to the application device. According to the invention, provision is made for the conveying device (3) to comprise a cylinder (10), a piston (30) arranged such as to be axially displaceable in the cylinder, a pump plunger (20) for the axial displacement of the piston (30), a first connection channel (41) between the cylinder (10) and the tank (40), and a second connection channel (21) between the cylinder (10) and the application apparatus (2), the piston (30) to be adjustable in relation to the pump plunger (20), for the piston (30) to open or close the first connection channel (41) depending on the setting in relation to the cylinder (10), and for the piston (30), depending on the position in relation to the pump plunger (20), to open or close the second connection channel (21).

The invention is directed to a dispensing device comprising a rigid container, a flexible bladder, and a rigid stopper. The container is adapted to contain a product to be dispensed. The flexible bladder is disposed below and in fluid communication with the container. The bladder comprises a top end, a sidewall extending downwardly from the top end and terminates in a spout. The bladder is in a liquid tight engagement with the container and the product contained in the container is adapted to flow into the bladder. The rigid stopper is disposed within the flexible bladder and comprises a top end, and at least one sidewall extending downwardly from the top end, and terminates in an open bottom end. The stopper comprises a plurality of through holes.

A sprayer system includes a sprayer head, at least two reservoirs, and a gripping portion. The reservoirs hold constituent components of a product. The product is emitted from a nozzle included in the sprayer head. The emission of the product results in the depletion of the components of one of the reservoirs to a greater extent than the remaining at least one reservoir and changes the center of gravity of the sprayer system.

A fluid dispenser comprising: a casing (E) that is provided with a dispenser head (11); and a refill cartridge (C) that includes a fluid reservoir (R); wherein the refill cartridge (C) is axially insertable into the casing (E) in such a manner as to connect the fluid reservoir (R) to the dispenser head (11); the fluid dispenser being characterized in that the refill cartridge (C) and the casing (E) are provided with connection means (17, 253) for connecting the refill cartridge (C) in the casing (E) by screw-fastening, so as to bring the fluid reservoir (R) into leaktight contact with the dispenser head (11), the movement, after screw-fastening, of the refill cartridge (C) in the casing (E) towards the dispenser head (11) delivering the fluid to the dispenser head (11).

An e-liquid bottle includes a main body for receiving e-liquid therein, and an e-liquid injecting member mounted on a bottleneck of the main body. The e-liquid injecting member includes a sleeve, a chamber formed inside the sleeve for storing e-liquid therein, a single valve connected between the bottleneck and an e-liquid suction portion of the chamber for controlling the e-liquid flow to the chamber, a piston installed in an e-liquid feeding portion of the chamber, an e-liquid guiding pipe formed on the piston and extending into the sleeve, a base mounted on the sleeve to engage with the e-liquid pipe and driven by the piston move back and forth along the chamber to control the pressure in the chamber, an e-liquid feeding tube connected to an e-liquid outlet of the e-liquid guiding pipe. An interval is formed between the piston and the base so that the piston can move along the interval towards the chamber to separate the e-liquid guiding pipe from the base and connect an e-liquid inlet of the e-liquid guiding pipe with the chamber.