A spray nozzle chip is presented having: a first layer provided with a first layer orifice, a mechanically flexible nozzle layer provided with a nozzle orifice, the spray nozzle chip having a valve functionality obtained by movement of the nozzle layer relative to the first layer due to pressure changes, wherein the nozzle orifice is closed when the nozzle layer is in a default non-pressurised state and wherein the nozzle orifice is opened and set in fluid communication with the first layer orifice when the nozzle layer is deformed due to pressure during a spraying operation, and wherein the spray nozzle chip further has a sealing layer configured to rupture when the nozzle layer is deformed due to applied pressure during a spraying operation.

The invention relates to a self-closing dispensing head for a pressurised container having a dispensing valve for dispensing media, in particular viscous, self-foaming and/or gel-type products, the dispensing head (1) having an outlet (3) which can be closed by a closing element (6).

A dispensing device for dispensing a foamable product. The dispensing device comprises a valve. The valve comprises: a plug; a seat configured to receive the plug; and one or more resilient arms coupled to the plug, configured to bias the plug against the seat. The valve has a closed configuration in which the plug is received by the seat, and an open configuration in which the plug is displaced from the seat.

A dispensing head for a system for dispensing a product is described herein. The head includes a body having a housing that is provided with an anvil around which a nozzle is mounted. The nozzle includes an outlet orifice to place the housing in communication with the exterior, and wherein the head includes a membrane added around the periphery of the anvil in the housing in such a way as to form between the membrane and the nozzle a path for dispensing the product.

The invention relates to a self-closing dispensing head for a pressurised container having a dispensing valve for dispensing media, in particular viscous, self-foaming and/or gel-type products, the dispensing head (1) having an outlet (3) which can be closed by a closing element (6).

A multiple dose syringe has a first valve defining a first valve opening pressure and a second valve defining a second valve opening pressure. A storage chamber in fluid communication with the second valve stores multiple doses of a substance therein and includes an outlet for dispensing multiple doses of the stored substance therethrough. A compression surface is movable between first and second positions and defines a compression chamber between the compression surface and the first valve. Movement of the compression surface in a direction from the first position toward the second position dispenses substance in the compression chamber through the first valve and out of the syringe. Movement of the compression surface in a direction from the second position toward the first position causes substance to flow from the storage chamber through the second valve and into the compression chamber.

A dispensing system includes a container for a fluid substance having a hollow stem and dispensing means for feeding the pressurised substance thereto. A cap includes a base body including a first seat for coupling to the stem, the base body partially defining a conduit presenting a first end in fluid communication with the seat and a second end coupled with a spray nozzle. A pressure regulator regulates passage of the substance according to the pressure in the stem to reduce passage due to an increase in pressure in the cavity and increase the passage otherwise, in order to maintain an essentially constant pressure downstream of the regulator even in the presence of variable upstream pressure. A valve element on the conduit between the regulator and the nozzle may close the conduit when the pressure present inside the latter is below a predetermined threshold and open the conduit otherwise.

A multiple dose syringe has a first valve defining a first valve opening pressure and a second valve defining a second valve opening pressure. A storage chamber in fluid communication with the second valve stores multiple doses of a substance therein and includes an outlet for dispensing multiple doses of the stored substance therethrough. A compression surface is movable between first and second positions and defines a compression chamber between the compression surface and the first valve. Movement of the compression surface in a direction from the first position toward the second position dispenses substance in the compression chamber through the first valve and out of the syringe. Movement of the compression surface in a direction from the second position toward the first position causes substance to flow from the storage chamber through the second valve and into the compression chamber.

A dispensing head for a system for dispensing a product is described herein. The head includes a body having a housing that is provided with an anvil around which a nozzle is mounted. The nozzle includes an outlet orifice to place the housing in communication with the exterior, and wherein the head includes a membrane added around the periphery of the anvil in the housing in such a way as to form between the membrane and the nozzle a path for dispensing the product.

An atomizer device for atomizing a liquid under increased pressure, comprising an atomizer body 14 with one or more atomizing openings from which a mist formed from the liquid escapes during operation. The device comprises a valve device 20, 30 upstream of the atomizer body. The valve device 20, 30 comprises a valve cavity 31 with a valve body 32 and a spring chamber 21 in which spring means 22 are compressible counter to a spring tension. The valve body 24 receives the liquid in valve cavity 31 with a first operative cross-section D1, which first operative cross-section is smaller than a second operative cross-section D2 of spring chamber 21 in which spring means 22 are compressible.