A pressure pack dispenser (100) for dispensing a product comprises a cylindrical container (401) with a product outlet through which the product is dispensed, a composite piston (408) movably mounted within the container, and a pressurised propellant. The composite piston comprises a first upper piston (409A) coupled to a second lower piston (409B) to permit limited relative axial movement and a viscous sealant material (410) located between the first and second pistons. The propellant comprises a compressed gas which remains in the gaseous phase as the piston (408) moves from a first full position to a second exhausted position, or a mixture of a liquid propellant and a compressed gas selected such that in the full position the mixture is at a pressure greater than the vapour pressure of the liquid propellant. A clearance is provided between the second lower piston (409B) and the container wall (401A) which is filled with the sealant (410) as the composite piston moves to expel product. The viscosity of the sealant and clearance are selected such that a thin film of viscous sealant material (410A) is left on the container wall of the propellant chamber, thereby reducing friction between the composite piston (408) and the container wall (401A). The sealant (410) preferably comprises a mixture of glycerine and starch, and has a viscosity of less than 100 poise and less than 4000 poise at 20 C.

A discharge container 1 includes a container body having a discharge face 13, on which a discharge hole 15 is formed, a cylinder part including a discharge space 2 in communication with the discharge hole 15 inside the container body, a piston 3 movable between a first position and a second position, the second position being farther than the first position from the discharge face in the discharge space 2, and a plurality of storage portions 5a to 5e for storing contents, wherein a plurality of inlet holes respectively corresponding to the plurality of storage portions 5a to 5e are formed in an inner wall of the discharge space 2, wherein, when the piston 3 is at the second position, the plurality of inlet holes 22a to 22e communicate with the discharge space 2 between a top face of the piston 3 and the discharge face, and the contents are ready to flow into the discharge space 2 from the plurality of inlet holes 22a to 22e, and wherein, when the piston 3 is at the first position, the plurality of inlet holes 22a to 22e are closed by the piston 3.

A discharge container 1 includes a container body having a discharge face 13, on which a discharge hole 15 is formed, a cylinder part including a discharge space 2 in communication with the discharge hole 15 inside the container body, a piston 3 movable between a first position and a second position, the second position being farther than the first position from the discharge face in the discharge space 2, and a plurality of storage portions 5a to 5e for storing contents, wherein a plurality of inlet holes respectively corresponding to the plurality of storage portions 5a to 5e are formed in an inner wall of the discharge space 2, wherein, when the piston 3 is at the second position, the plurality of inlet holes 22a to 22e communicate with the discharge space 2 between a top face of the piston 3 and the discharge face, and the contents are ready to flow into the discharge space 2 from the plurality of inlet holes 22a to 22e, and wherein, when the piston 3 is at the first position, the plurality of inlet holes 22a to 22e are closed by the piston 3.

A dispensing container for viscous products comprising: a cream pot having an inner cylinder that defines a storage volume configured to store a viscous product; a cap configured to close the cream pot and having a dispensing outlet; a screw rod rotatably connected to the cream pot; a piston having an inner thread and being coupled to the screw rod such that rotation of the screw rod leads to movement of the piston in the inner cylinder along a longitudinal axis of the screw rod to reduce the storage volume of the inner cylinder and to dispense the product through the dispensing outlet; wherein an indexing mechanism is provided that is configured to lock the screw rod in a plurality of rotational positions with respect to the cream pot, wherein the indexing mechanism comprises indexing spring elements located at the screw rod and indexing sections located at a bottom of the cream pot, wherein the indexing spring elements of the screw rod are configured to interact with the indexing sections of the cream pot in order to lock the screw rod with respect to the cream pot.

A dispensing container for viscous products comprising: a cream pot having an inner cylinder that defines a storage volume configured to store a viscous product; a cap configured to close the cream pot and having a dispensing outlet; a screw rod rotatably connected to the cream pot; a piston having an inner thread and being coupled to the screw rod such that rotation of the screw rod leads to movement of the piston in the inner cylinder along a longitudinal axis of the screw rod to reduce the storage volume of the inner cylinder and to dispense the product through the dispensing outlet; wherein an indexing mechanism is provided that is configured to lock the screw rod in a plurality of rotational positions with respect to the cream pot, wherein the indexing mechanism comprises indexing spring elements located at the screw rod and indexing sections located at a bottom of the cream pot, wherein the indexing spring elements of the screw rod are configured to interact with the indexing sections of the cream pot in order to lock the screw rod with respect to the cream pot.

Provided is a two fluid discharge container comprising: a container body; a piston partitioned by a first storage part and a second storage part, which are accommodated in the container body and are each to be filled with content, and a pressurized space to be filled with a pressurizing agent; and a valve mechanism that closes an opening in the container body, and has a passage through which the first storage part and the second storage part communicate. The first storage part and the second storage part are concentrically formed, and the contents of the first storage part and the second storage part are simultaneously pressurized by the piston so as to be discharged.

Provided is a two fluid discharge container comprising: a container body; a piston partitioned by a first storage part and a second storage part, which are accommodated in the container body and are each to be filled with content, and a pressurized space to be filled with a pressurizing agent; and a valve mechanism that closes an opening in the container body, and has a passage through which the first storage part and the second storage part communicate. The first storage part and the second storage part are concentrically formed, and the contents of the first storage part and the second storage part are simultaneously pressurized by the piston so as to be discharged.

The present disclosure describes devices, systems, and methods for the production and/or delivery of a foamable and/or flowable material for consumption, such as by direct application to a consumer, such as directly to the mouth of the consumer. A device and/or system for converting a material from a first, unfoamed state to a second, foamed state is provided, and a device and/or system for converting a material from a first, non or semi-flowable state to a second, flowable state is provided.

The present disclosure describes devices, systems, and methods for the production and/or delivery of a foamable and/or flowable material for consumption, such as by direct application to a consumer, such as directly to the mouth of the consumer. A device and/or system for converting a material from a first, unfoamed state to a second, foamed state is provided, and a device and/or system for converting a material from a first, non or semi-flowable state to a second, flowable state is provided.

A reservoir-based storage and delivery system has a reservoir body equipped with a top assembly, a bottom assembly and a piston assembly. The contents of the reservoir are allowed to expand and contract during the thermal cycle due to the ability of the piston assembly to float within the reservoir, which eliminates the need for dead head space.