A high flow valve for use in conjunction with a compressed gas, an aerosol or in bag-on-valve applications, and particularly to a valve having a housing that is supported by a mounting cup for a product container or can, and communicates with a product or product containment bag inside the can. A radial opening or orifice of the valve is positioned closer to a lower seal of the valve stem, rather than an upper seal or mounting cup gasket, to facilitate an increased flow rate for dispensing the product from the container and the valve.

An apparatus for dispensing a metered dose of a product, and a method for using the apparatus. The dispensing device has a charging configuration in which an outlet (112; 212) is closed and a metering chamber (120; 220) is configured to expand to its expanded configuration while receiving product through an inlet (111; 211). It also has a discharging configuration in which the outlet (112; 212) is open and the metering chamber (120; 220) is configured to contract to its contracted configuration while expelling the received product through the outlet (112; 212), thereby dispensing a metered dose of product. The dispensing device further comprises a latch mechanism (140; 240), configured to retain the dispensing device in the charging configuration until the metering chamber (120; 220) attains its expanded configuration. The method comprises actuating an actuator (130; 230) of the dispensing device, to fill the metering chamber, and releasing the actuator to dispense the metered dose of product

A dispensing valve comprising a metering valve for a pressurized aerosol application. The dispensing valve comprises a mounting cup, a gasket, a valve body and a valve housing defining a cavity. The valve housing is captively retained by the mounting cup and a spring biasing the valve body against the gasket into a normally closed position. A lower portion of the valve housing communicating with the product to be dispensed. A valve stem is coupled to the valve body and an actuator is supported by the valve stem. The metering valve is delimited by a metering valve seat and a stop. A metering member is movable, within the metering chamber, to dispense a predetermined quantity of product. The metering valve seat comprising at least one micro vent which facilitates supplying air to the metering valve seat to break a seal formed by surface tension of the product to be dispensed.

A metering valve having an elongate moveable stem arranged for axial movements within a container and defining a discharge passage. A flexible bag for containing a liquid formulation to be dispensed from the metering valve surrounds a lower end of the metering valve. The bag is fillable through a fill passage defined by the valve and from an exterior of the container. A one-way valve, disposed in operable combination with the fill passage, prevents liquid formulation in the bag from escaping to ambient through the fill passage but allows the bag to be filled after the lower end of the valve and the bag are inserted into the container and the container is pressurized with a propellant.

The present invention addresses the problem of turbophoresis and provides a relatively simple and low cost solution for a metered dose inhaler, in particular, a pressure-actuated metered dose inhaler. A metering valve (100) comprises a valve body (110), a valve stem (130) mounted within the valve body (110) and a spring element (140) for biasing the valve stem (130) in an at rest position. A pre-metering region (170) is formed in the valve stem (130) which is provided with a miniature valve seal (210) at its inlet (180). The miniature valve seal (210) effectively isolates the pre-metering region (170) from surrounding bulk formulation (4) within a canister (1) in which the metering valve (100) is mounted when the valve stem (130) is in the at rest position.

The present invention addresses the problem of turbophoresis and provides a relatively simple and low cost solution for a metered dose inhaler, in particular, a pressure-actuated metered dose inhaler. A metering valve (100) comprises a valve body (110), a valve stem (130) mounted within the valve body (110) and a spring element (140) for biasing the valve stem (130) in an at rest position. A pre-metering region (170) is formed in the valve stem (130) which is provided with a miniature valve seal (210) at its inlet (180). The miniature valve seal (210) effectively isolates the pre-metering region (170) from surrounding bulk formulation (4) within a canister (1) in which the metering valve (100) is mounted when the valve stem (130) is in the at rest position.

An apparatus for delivering a predetermined quantity of content from a pressurized container includes a dispensing assembly which sits on the container and connects with an upper portion of a valve stem of the valve assembly, wherein the dispensing assembly includes a) an actuator cap having a discharge passage, which is open or obstructed and wherein the actuator cap acts as a metering chamber in combination with b) an adaptor which fits inside the cap and also snuggly engages the valve stem. The cap fits snuggly over the adjuster to define a metering chamber which depending on its position can close off the metered chamber or open it to the dispensing conduit nozzle. When the cap is depressed it pushes down on the adjuster which depresses the valve. The chamber fills, but nothing is released until the upstroke.

A metering valve having an elongate moveable stem arranged for axial movements within a container and defining a discharge passage. A flexible bag for containing a liquid formulation to be dispensed from the metering valve surrounds a lower end of the metering valve. The bag is fillable through a fill passage defined by the valve and from an exterior of the container. A one-way valve, disposed in operable combination with the fill passage, prevents liquid formulation in the bag from escaping to ambient through the fill passage but allows the bag to be filled after the lower end of the valve and the bag are inserted into the container and the container is pressurized with a propellant

A dispensing valve comprising a metering valve for a pressurized aerosol application. The dispensing valve comprises a mounting cup, a gasket, a valve body and a valve housing defining a cavity. The valve housing is captively retained by the mounting cup and a spring biasing the valve body against the gasket into a normally closed position. A lower portion of the valve housing communicating with the product to be dispensed. A valve stem is coupled to the valve body and an actuator is supported by the valve stem. The metering valve is delimited by a metering valve seat and a stop. A metering member is movable, within the metering chamber, to dispense a predetermined quantity of product. The metering valve seat comprising at least one micro vent which facilitates supplying air to the metering valve seat to break a seal formed by surface tension of the product to be dispensed.

The present invention relates to a dispensing head for dispensing a metered dose of product comprising a housing which comprises a mounting assembly for mounting to a flange of an aerosol container, wherein a valve body is arranged inside the housing, with a charging system extending from the lower end of the valve body for connecting with the aerosol container valve, wherein a stem block is movably mounted in the valve body, with a head stem extending from the upper end of the stem block and passing through an opening in the top wall of the housing, wherein at least one charging opening is arranged in the central region of the valve body, wherein a dispensing container is arranged around and hermetically connected to the valve body, the dispensing container provided with resilient means for compressing the dispensing container, wherein the dispensing container is arranged in a limiting container.