A portable fire extinguisher is disclosed which includes a cylinder for storing a pressurized fire extinguishing agent and has a neck portion defining an outlet, and a flexible hermetic seal supported across the outlet of the cylinder, wherein the flexible hermetic seal is adapted and configured to transition between: an unexpanded condition corresponding to an unpressurized cylinder; an expanded condition corresponding to a pressurized cylinder; and a bursted condition corresponding to an opened cylinder.

In the field of medical dosing device filling, a propellant conditioning assembly (10) comprises an input conduit (12) to receive a propellant at a constant pressure from a propellant reservoir (102). The conditioning assembly (10) also includes a bifurcation (18) to divide the input conduit (12) into first and second conditioning conduits (20, 22). The first conditioning conduit (20) includes a cooler device (24) to selectively cool a diverted first propellant stream (26) that flows through the first conditioning conduit (20), and the second conditioning conduit (22) includes a heater device (32) to selectively heat a diverted second propellant stream (34) that flows through the second conditioning conduit (22). The conditioning assembly (10) still further includes an output conduit (44) to receive the first and second propellant streams (26, 34). The relative proportion of the first and second propellant streams (26, 34) merging in the output conduit (44) is controlled to regulate the temperature of a merged constant pressure propellant feed (46) exiting from the output conduit (44).

A double pressurized container 11, 31 includes an outer container 13, 33; an inner container 14, 34 stored inside the outer container 13, 33 and having flexibility; and a plug 15, 35 welded to the outer container 13, 33 and the inner container 14, 34 and sealing both of the outer container 13, 33 and the inner container 14, 34. An inside of the inner container 14, 34 is a concentrate chamber for charging a concentrate C, and a space between the outer container 13, 33 and the inner container 14, 34 is a pressurizing agent chamber for charging a pressurizing agent P, and the plug 15, 35 is provided with an openable seal part 15d, 44 to open the concentrate chamber. A discharge product 11a, 31a has the double pressurized container 11 filled with the concentrate C and the pressurizing agent P.

A system and corresponding method for charging an aerosol can with a compressed gas charge includes a base that is adapted for receiving a can that (i) houses a product and (ii) includes a means for injecting gas, such as a grommet or valve on the bottom of the container, and includes a compressed gas source, such as a pre-charged canister of compressed air, and air compressor, and/or an automatic or manual air pump. The can may be filled with at atmospheric pressure and then shipped while the can contains approximately atmospheric pressure. Upon receipt of the can, a user may charge the can with a compressed gas and repeat charging if needed after some of the product has been dispensed.

A two aerosol can injection system has a first aerosol can which contains activator or hardener and a second aerosol can containing product such as paints, thinners, clear coats, and propellant. A connector system connects at a first end to the first aerosol can and at a second end to the second aerosol can which provides flow of activator or hardener from the first can to the second can.

An aerosol product comprising an aerosol container comprising a container body and an aerosol valve fixed to an opening of the container body, and an aqueous concentrate and a propellant being filled in the aerosol container, wherein the aqueous concentrate comprises an active ingredient having reactivity with oxygen, and an inert ingredient is present in at least a part of an injection passage of the aerosol valve, even though the aqueous concentrate comprising an active ingredient having reactivity with oxygen is filled, oxidation of the active ingredient is inhibited in the aerosol valve, and an aerosol product that can be stored stably for a long period of time and a method for manufacturing the same can be provided.

A method and apparatus of making an aerosol container. A polymeric container may be provided. The container may have a closed end bottom and a neck longitudinally opposed to the closed end bottom. The container has an internal container volume. A valve and a bag may be provided and a portion of the valve and the bag may be disposed within the container. The bag has a first bag volume. A portion of the at least one of the neck and the bag may contact a portion of the valve to form a temporary seal. Propellant may be introduced into the container. The bag may be collapsed from the first bag volume to a second bag volume. The pressure of the propellant and the pressure within the bag equilibrate. The valve may be joined to the container and the propellant may be sealed within the container.

A method for manufacturing a discharge product includes the steps of: preparing the double pressurized container including an outer container; an inner container stored inside the outer container and having flexibility; and a plug for sealing both of the outer container and the inner container; charging a concentrate inside the inner container; contracting the inner container before or after charging the concentrate; tightly mounting the plug to a mouth of the inner container; charging the pressurizing agent between the outer container and the inner container through a space between a mouth of the outer container and the mouth of the inner container; and tightly closing the space between the mouth of the outer container and the mouth of the inner container by the plug.

The disclosure relates to a pressurized Metered Dose Inhaler-compatible tablet, i.e. one that is able to be dispersed or disintegrates within a liquid phase propellant, which is used in a pressurized Metered Dose Inhaler formulation containing at least one active pharmaceutical ingredient and one or more excipients.

A method is provided for filling a bag-on-valve can with a hypochlorous acid solution, including: providing a hypochlorous acid manufacturing apparatus having an anolyte storage tank in which the hypochlorous acid solution is stored; providing a bag-on-valve canning apparatus having a fluid inlet; connecting a pipe between the anolyte storage tank of the hypochlorous acid manufacturing apparatus and the fluid inlet on the bag-on-valve canning apparatus in order to provide the hypochlorous acid solution directly from the hypochlorous acid manufacturing apparatus to the bag-on-valve canning apparatus; providing a bag-on-valve can having a can in which a bag and a valve are disposed, wherein the valve seals the bag during non-use, the bag-on-valve can further including an actuator for actuating the valve; and filling the bag with the hypochlorous acid solution provided through the pipe. An apparatus is also disclosed for producing and canning a hypochlorous acid solution.