Aerosol solution compositions intended for use with a pressurized metered dose inhaler, comprising glycopyrronium bromide and formoterol, or a salt thereof, optionally in combination with one or more additional active ingredients, and stabilized by a selected amount of a mineral acid, exhibit improved stability when contained in an aerosol can provided with a metering valve having at least a butyl rubber gasket.

Provided are a mosquito control aerosol which can produce a good control effect on mosquitoes over a long period of time while reducing influence on humans and pets, and a mosquito control method using the mosquito control aerosol. The mosquito control aerosol includes: a pressure-resistant container equipped with a metering spray valve, that contains a liquid aerosol-forming material including an insect pest control component and an organic solvent, and a propellant; and a spray button having a spray outlet connected to the metering spray valve. The volume of the liquid aerosol-forming material sprayed when the spray button is pressed down once is adjusted to 0.1 to 0.4 mL, and the spray force thereof as measured at a distance of 20 cm from the spray outlet at 25 C. is adjusted to 0.3 to 10.0 g.Math.f.

Metering valve having a valve body (10) containing a metering chamber (20) defined by a chamber insert (40) and a top and a bottom seal. The chamber insert (40) has a cylindrical wall (49) with an upper edge (41) cooperating with the top seal and a lower edge (43) with the bottom seal. A valve shut-off element (30) slides between rest position and dispensing positions. The valve shut-off element is urged towards its rest position by a spring (8) cooperating with the valve body (10) and the valve shut-off element. The lower edge of the chamber insert forms a flange and has a downward axial projection (48). The bottom seal has an axial opening (225) accepting an axial projection (45) and passing through the axial opening. The rest position of the valve shut-off element is defined by contact between the axial projection and a part of the valve shut-off element.

Metering valve for dispensing a fluid product, having a valve body containing a metering chamber, the metering chamber defined by a chamber insert and two O-rings, a valve stem seal and a chamber seal. The chamber insert has a cylindrical wall, an upper edge that cooperates with the valve stem seal and a lower edge that cooperates with the chamber seal, a valve stem sliding axially in the valve body between a rest position and a dispensing position, to selectively dispense the contents of said metering chamber. The said valve stem is urged towards its rest position by a spring that cooperates, on the one hand, with the valve body and on the other hand with the valve stem. The upper edge of the chamber insert has an opening connecting the metering chamber to an external volume arranged outside the chamber insert, between the valve body and the cylindrical wall.

A ring for arranging around a valve body of a fluid dispenser valve that is mounted by a fastener capsule, such as a crimpable capsule, on a reservoir containing fluid to be dispensed. The ring is made as a single piece including at least one inner portion that co-operates with the valve body, and a radial flange that forms a neck gasket that extends between the neck of the reservoir and the fastener capsule.

A dispensing assembly which is intended for being mounted in a neck of a container containing the fluid. The dispensing assembly includes an annular sealing shoulder intended for engaging with a complementary annular edge of the neck, and an annular bearing surface extending axially from the sealing shoulder. The annular bearing surface defines an annular contact area with a constriction of the neck, and separates, from a main space of the vessel, an annular isolated space extending between the sealing shoulder and the annular contact area. The annular bearing surface includes at least one recess intended for interrupting the circumferential continuity of the annular contact area and for forming a fluid passage between the main space and the isolated space.

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 dispenser may include a dispenser container filled with a dispensing aerial carrier gas fitted with a valve assembly. The valve assembly may include a mounting cup, at least one gasket, a valve seat, a spring, a housing, and a dividing boss including a first fitment and a second fitment. The dispenser container may be absent of an adsorbent. The dispenser may be partially filled with an ingredient for dispensing and/or the ingredient for dispensing may be contained in an ingredient containing reservoir. The first fitment, along which the ingredient is carried, may be connected to at least one of a dip tube and a tube and ingredient containing reservoir. On actuation, the ingredient may travel out via the first fitment and the dispensing aerial carrier gas may travel out via the second fitment via a reducer insert which manages respective flow rates of the dispensing aerial carrier gas.

A dispenser may include a dispenser container filled with a dispensing aerial carrier gas fitted with a valve assembly. The valve assembly may include a mounting cup, at least one gasket, a valve seat, a spring, a housing, and a dividing boss including a first fitment and a second fitment. The dispenser container may be absent of an adsorbent. The dispenser may be partially filled with an ingredient for dispensing and/or the ingredient for dispensing may be contained in an ingredient containing reservoir. The first fitment, along which the ingredient is carried, may be connected to at least one of a dip tube and a tube and ingredient containing reservoir. On actuation, the ingredient may travel out via the first fitment and the dispensing aerial carrier gas may travel out via the second fitment via a reducer insert which manages respective flow rates of the dispensing aerial carrier gas.

Metering valve having a valve body (10) containing a metering chamber (20) defined by a chamber insert (40) and a top and a bottom seal. The chamber insert (40) has a cylindrical wall (49) with an upper edge (41) cooperating with the top seal and a lower edge (43) with the bottom seal. A valve shut-off element (30) slides between rest position and dispensing positions. The valve shut-off element is urged towards its rest position by a spring (8) cooperating with the valve body (10) and the valve shut-off element. The lower edge of the chamber insert forms a flange and has a downward axial projection. The bottom seal has an axial opening (225) accepting an axial projection (45) and passing through the axial opening. The rest position of the valve shut-off element is defined by contact between the axial projection and a part of the valve shut-off element.