Abstract: A source of gaseous, gas borne or droplet substance having: an inner pressurized container (1), a substance-release valve (2) device sealed across an end of the container (1), a spout (4) displaceable inwards of the container (1) against a spring of the valve (2) device for substance release; the source also includes: an outer enclosure enclosing the inner container along its length (12), at least partially its end (14) remote from the spout (4) and partially at its spout end (19), the outer enclosure and the inner container (1) being arranged to react force for displacement of the spout (4) on substance release; a counter (20) accommodated within the outer enclosure for counting substance release displacements of the spout (4); and a window (22) in the outer enclosure for viewing the count of the counter (20).

Abstract: The dispenser has a body (1), with a mouthpiece cover (2). Opening of the cover urges a junction member (3) towards a source (4) of a medicament to be released as a dose by pressing a spout (5) of the source inwards of the source. The source is supported by a cap (11) clipped to the end of a source-enclosing barrel (12) with intern al splines (10). The barrel is welded (15) to the main to part (16) of the body at a position determined by the extension of the source towards the distal end (17) of the barrel when the cover is open, the welding position being determined by a plug (18) simulating the cap and its bush.

Abstract: A medicament source has a container and a crimped closure. The closure sealingly holds to the container a metered-dose release valve, of which the spout only is visible externally. The container has a neck and a protruding rim at which the crimp locates. The container is of molded polymer and has an outer, perforate sleeve of aluminum, providing mechanical strength for pressure retention. The neck has a relatively thicker wall thickness and the end is domed inwards, both for pressure retention. The polymer is of three layers or laminations. The innermost layer is of polytetrafluoroethylene (PTFE) material to provide an inert layer with which the medicament and its propellant will not react or combine in any way. The middle polymer layer is of nylon material to provide a propellant tight layer, to contain the propellant, whose molecules may be able to pass through the PTFE layer. The outer polymer layer is of polypropylene (PP) to provide both water tightness and mechanical integrity of the container.

Abstract: A dispenser (1) has a source (2) of medicament with a transparent reservoir (3) of glass sheathed in a transparent plastics material shrink wrapping (4), which provides an enclosure against explosion of the glass in the event of accidental breakage of the glass. The reservoir contains not only a liquid medicament (5), but also a gaseous propellant liable to cause the glass to explode if broken. A valve (6) of the source is within a body (7) of the dispenser. The valve is attached to the reservoir by a crimped on aluminum sleeve (8). With the dispenser inverted the level (14) of the medicament (5) is within the tapered tip when the medicament is close to being used up. As use of the dispenser continues, the level falls progressively faster, giving the user an indication that a fresh dispenser will soon be required.

Abstract: A dispenser (1) comprises a can (2) and body (3). The can is an aluminum extrusion with a valve crimped into its mouth, the valve having an outlet spout (4). The crimped region (5) of the can surrounding the valve has a lesser diameter than the can has through the main part (6) of its length. The body has a mouthpiece (11) with a pivotal cover (12) drivingly connected to a cam (13). This bears on the underside of junction member (14), into a socket (15) of which the spout 4 fits. A breath actuated dose release mechanism (16) is provided. The body has a tubular section (7) for receiving the necked down region (5) of the can. A printed paper label (21) is wrapped around the joint between the body and the can to unite the can to the body in position such that when the cover is opened, a dose is dispensed by the cam (13) lifting the junction member and depressing the spout.

Abstract: The dispenser has a body (1), with a mouthpiece cover (2). Opening of the cover urges a junction member (3) towards a source (4) of a medicament to be released as a dose by pressing a spout (5) of the source inwards of the source. The source is supported by a cap (11) clipped to the end of a source-enclosing barrel (12) with intern al splines (10). The barrel is welded (15) to the main to part (16) of the body at a position determined by the extension of the source towards the distal end (17) of the barrel when the cover is open, the welding position being determined by a plug (18) simulating the cap and its bush.

Abstract: A drug dispenser 1 has a hollow body 2 with a housing 6 for a pressurised can 7 containing a drug and its propellant arranged on top of the body. The can has an outlet stem 8 received in a socket 9 in an internal spigot 10. This has a junction with a flexible tube 11, leading to a kink valve pair 12,14. The tube continues on to a second internal spigot 15, having a spray nozzle 16 just within a breathing opening 5. The kink valve pair 12, 14 is formed as a moulding of the tube, with side wings 17. Towards the ends of the wings, they have thinner portions 17.1 at which there are apertures 18 immediately adjacent the tube. The arrangement defines positions at which the tube kinks to close its through bore 19. The thinner portions are provided in two positions, which provide the two kink valves. An intermediate section 20 of the tube, with a predetermined volume is provided between the kink valves.

Abstract: A breath actuated dispenser there-shown has a generally L-shaped hollow body 1 with a mouthpiece 2. An aerosol drug can 3 is mounted in the body. The can has a dispensing spout 4, which engages a receptor moulding 5 incorporating a living hinge 11, a movable outlet member 8 and a kink valve 9. A flap member 31 is pivotally mounted between the can and the receptor moulding. Breathing in through the dispenser by the patient will cause the flap to be drawn down against its spring 34. The outlet member is then tipped down by the spring 37 to point out of the mouthpiece 2, whence the dose is dispensed by opening of the kink valve.