The present invention relates to a modular closure device (7) for a device for dispensing a product, comprising: an outlet nozzle (9) comprising: an outlet orifice (15) at the front, a rear opening, a product intake orifice, top valve comprising a shut-off member (17) that closes of the outlet orifice, a deformable membrane (22) that seals the rear opening closed, designed so that a depression inside the nozzlee forces the shut-off member toward its closed position, and a rigid frame extending between the outlet orifice and the membrane; a bell housing having an end wall and base opening opposite this end wall, the edges of the base opening being fixed to the nozzle, the membrane sealing the base opening closed. The invention also relates to a dispensing device comprising this closure device.

A nebulizer for nebulizing a fluid and a reservoir with a fluid are proposed. The reservoir includes a collapsible bag with the fluid, where the bag extends in a circumferential direction within the housing part and wherein the reservoir is manually rotated for tensioning the nebulizer.

A fluid dispensing device having a flexible fluid pouch and a dispensing assembly, the dispensing assembly having a top piece and a bottom piece, the top piece having a flexible actuator including a flexible dome and a flexible flange extension, the bottom piece having a bottom portion of a pump chamber, a pump chamber inlet, a chamber inlet valve, and a bottom portion of an outlet valve, the top piece and the bottom piece mated together to form a pump chamber and an outlet valve, said device configured to allow bidirectional fluid flow through either or both inlet and outlet valves, and to dispense a volume of fluid that is less than the volume of said pump chamber. The flexible pouch may have a single opening or two openings. In the case of a single opening, the entire dispensing assembly is in the interior of the pouch. In the case of two openings, only the flexible dome extends to the exterior of the pouch. The outlet valve is configured so that the more pressure that is applied to the flexible fluid pouch, the more tightly the outlet valve seals.

A pump for a vial intended to contain a cosmetic product. The pump includes a dosing chamber with a variable volume defined at least partially by a deformable element between an initial state and a deformed state. The pump further includes a guiding rod passing through the deformable element, the latter sliding along the rod when it undergoes a deformation. The deformable element includes an outlet lip delimiting an outlet orifice, surrounding a section of the rod, and bearing in a sealed manner against the rod or deviating from the rod according to the pressure in the chamber. The rod includes means for maintaining the outlet lip bearing in a sealed manner against the rod when the membrane is in the initial state thereof whatever the pressure in the chamber and whatever the pressure around the pump.

The invention relates to a dosing device designed to equip a container including a deformable reservoir containing a product. The device includes an insert that includes a dosing chamber that can be deformed by pressure from the product coming from the reservoir. The dosing chamber includes a top valve for the intake of the product from the reservoir, a bottom valve dispensing the product, and a deformable body connecting the top valve and the bottom valve. The dosing chamber is configured such that, under pressure from the product coming from the reservoir, the top valve is closed by the deformation of a first portion of the chamber, the bottom valve remaining closed, whereupon, the bottom valve opens under the effect of the deformation of the body.

A discharge head for a liquid dispenser having a coupling device fastening to an outlet connector of a liquid store, a liquid inlet, and a discharge opening. The discharge head has a pump device conveying liquid from the liquid inlet to the discharge opening, and a ventilation channel. The discharge head has an end surface by which the liquid store is substantially closed off at the distal end of the outlet connector and which is extended through by the liquid inlet. The end surface and the coupling device are formed as part of a common main component. The end surface has a ventilation aperture which is part of the ventilation channel and through which air flows into the liquid store in an inflow direction. The ventilation aperture has a minimum clear cross section of at most 3.Math.10.sup.2 mm.sup.2.

The invention relates to a system (S) for dispensing a product, comprising a pump (P) with a flexible pumping bellows, a lower-end flexible tubular wall section of which is automatically assembled on a chimney of a rigid end piece by interlocking of two complementary hooks, ensuring a sealed connection by pressing together of two complementary annular surfaces.

A pump dispenser has a deformable pump chamber constituted by first and second part-chambers each having a respective resiliently deformable faceted chamber wall and a connecting conduit communicating between them. They may be moulded in one piece and require no separate restoring spring. The first and second part-chambers may be disposed in line between a pump body providing an inlet valve from a container and a movable actuator cap providing a valved outlet.

The disclosure relates to a fluid pump including a plastomer spring with a captive valve element provided in an integrally formed valve chamber. The spring includes a first end portion and a second end portion and one or more spring sections connecting the first end portion to the second end portion, which spring sections can be compressed in the axial direction from an initial condition to a compressed condition and can subsequently expand to their initial condition. The valve chamber is formed in the first end portion.

A pump dispenser has a deformable pump chamber constituted by first and second part-chambers each having a respective resiliently deformable faceted chamber wall and a connecting conduit communicating between them. They may be moulded in one piece and require no separate restoring spring. The first and second part-chambers may be disposed in line between a pump body providing an inlet valve from a container and a movable actuator cap providing a valved outlet.