An aerosol dispenser, an outer container for an aerosol dispenser and a preform for an outer container. The aerosol dispenser, outer container and preform each have a neck, which in turn has a crimp ring, to receive a valve cup clinched thereto and a lower neck potion upon which the crimp ring is mounted. The lower neck portion extends between the bottom of the crimp ring and a shoulder which transitions into the sidewalls. The crimp ring preferably has a greater axial length than the lower neck portion. This geometry allows flexibility in the thickness throughout the thickness of the entire neck. The geometry advantageously minimizes distortion of the neck in the event of overpressurization.

A container, a nebulizer and a use of an indicator device are described, where the container comprises an indicator device fixedly mounted on the bottom of the container, the container is arranged within the nebulizer and the container can be detached by grabbing the indicator device.

The present invention provides a pressure control device for maintaining a constant predetermined pressure in a fluid dispensing container, as well as a pressure control system which includes the device. The present invention further concerns a method for manufacturing the pressure control device and system of the invention. The invention is of particular importance in the technical field of aerosol sprays.

A preform suitable for blow molding into for an outer container usable for a pressurized aerosol dispenser. The preform has a longitudinal axis and a closed end bottom, an open neck. The neck has threads for accepting a valve having complementary threads. At least one pawl or ratchet is operatively juxtaposed with the periphery of the preform. The at least one pawl or ratchet allows onward rotation of the complementary valve in an onward direction, and prevents detachment of the valve in a reverse rotation direction. Any such preform can be blow molded into a corresponding outer container, and any such outer container can be blow molded from a corresponding preform.

A plural preform assembly having nested preforms with an inner preform and an outer preform. The preforms are sealably joined together, defining a volume between the preforms. Propellant is disposed in the volume between the preforms. The preforms are later blow molded to provide a bag in bottle, bottle in bottle or similar container. The propellant charge is already present when blow molded, preventing the need for a later propellant filling step.

An aerosol container includes a main body portion that is constructed and arranged to withstand aerosol pressurization within a range that is about 90-180 psig and a threaded finish portion that is unitary with the main body portion. The threaded finish portion has at least one helical thread, a support ledge beneath the helical thread and a secondary flange that is positioned beneath the support ledge. The secondary flange has an outer circumference that is noncircular in at least one location, whereby it may be engaged during a capping operation to prevent rotation of the container during capping. A method of making an aerosol container in which a preform is capped before the blow molding process is also disclosed.

A container, a nebulizer and a use of an indicator device are described, where the container comprises an indicator device fixedly mounted on the bottom of the container, the container is arranged within the nebulizer and the container can be detached by grabbing the indicator device.

A new method for fully automatically manufacturing a fluid container with a pressure unit is described, which pressure unit is mounted in a fluid container. In a station the high-pressure container of the pressure unit is mounted with the closure and the bottom part and is clamped at the upper and lower ends by clamping means and is rotated by rotating means associated with the clamping means. The rotating pressure unit is welded by first laser means and by second laser means, whereas the laser beam of the first laser means being directed to a first joint area of the bottom part of the pressure unit with the container, and the laser beam of the second laser means being directed to a second joint area of the bottom part of the pressure unit with the container, which first and second joint area are separated at a distance to each other

A method of making an aerosol container suitable for use as an aerosol dispenser. The aerosol container includes at least a valve and product delivery device joined to an outer container. The method has the steps of sealing the valve to the product delivery device and outer container at respective annular welds or other bonds joining the valve to the product delivery and to the outer container. The welds, or other bonds may be concentric, with one circumscribing the other, in the same plane or different planes. Suitable product delivery devices include bags and dip tubes. Suitable welds include spin welds.

The present invention relates to a method for manufacturing a pressurizable cylindrical vessel for use in a pressure control system for maintaining a constant predetermined pressure in a fluid container configured to dispense when in use a fluid contained in said fluid container at said constant predetermined pressure, characterized in that the manufacturing is by injection moulding. The invention also relates to a method for assembling a pressurizable fluid container configured to dispense when in use a fluid contained in said container at a constant predetermined pressure. In addition, the invention relates to a pressurizable cylindrical vessel, a pressurizable unit, a pressure control system, a bottom plate and a dispenser; as well as their methods of manufacturing. In a final aspect the invention relates to uses of said parts in a bag-on-valve type packaging or metal can type packaging.