A novel foam dispenser is described, which comprises a dispensing container, a valve with a downstream foaming chamber and a pressure control device for maintaining a constant pressure in the container, such that uniform and compact foam will be created.

A pressure control system provided for maintaining a constant predetermined excess pressure in a fluid dispensing container comprises a high-pressure plastic vessel having an inner chamber, and a pressure control device having a valve and mounted on the open end of the high-pressure vessel, whereas a passageway is provided from the inner chamber to the outside, which is controlled by the valve. A piston with a protruding stem is provided in a guide member, whereas between the guide member and the piston a chamber with a gas with a reference pressure smaller than the high pressure is enclosed, and the high pressure vessel is closed by a closure with a central bore of smaller diameter than the diameter of the stem, and the piston end remote from the protruding stem is pressurized by the fluid in the fluid dispensing container.

A pressure control system provided for maintaining a constant predetermined excess pressure in a fluid dispensing container comprises a high-pressure plastic vessel having an inner chamber, and a pressure control device having a valve and mounted on the open end of the high-pressure vessel, whereas a passageway is provided from the inner chamber to the outside, which is controlled by the valve. A piston with a protruding stem is provided in a guide member, whereas between the guide member and the piston a chamber with a gas with a reference pressure smaller than the high pressure is enclosed, and the high pressure vessel is closed by a closure with a central bore of smaller diameter than the diameter of the stem, and the piston end remote from the protruding stem is pressurized by the fluid in the fluid dispensing container.

A novel pressure control system is provided for maintaining a constant predetermined excess pressure in a fluid dispensing container, comprising a high-pressure plastic vessel having an inner chamber, a closed end and an open end, and a pressure control device with a valve, which pressure control device is mounted on the open end of the high-pressure vessel, whereas a passageway is provided from the inner chamber to the outside, which is controlled by the valve, wherein the high-pressure vessel is essentially spherical.

A novel pressure control system is provided for maintaining a constant predetermined excess pressure in a fluid dispensing container, comprising a high-pressure plastic vessel having an inner chamber, a closed end and an open end, and a pressure control device with a valve, which pressure control device is mounted on the open end of the high-pressure vessel, whereas a passageway is provided from the inner chamber to the outside, which is controlled by the valve, wherein the high-pressure vessel is essentially spherical.

A novel pressure control system is provided for maintaining a constant predetermined excess pressure in a fluid dispensing container, comprising a high-pressure plastic vessel having an inner chamber, a closed end and an open end, and a pressure control device with a valve, which pressure control device is mounted on the open end of the high-pressure vessel, whereas a passageway is provided from the inner chamber to the outside, which is controlled by the valve, wherein the high-pressure vessel is essentially spherical.

A novel pressure control system is provided for maintaining a constant predetermined excess pressure in a fluid dispensing container, comprising a high-pressure plastic vessel having an inner chamber, a closed end and an open end, and a pressure control device with a valve, which pressure control device is mounted on the open end of the high-pressure vessel, whereas a passageway is provided from the inner chamber to the outside, which is controlled by the valve, wherein the high-pressure vessel is essentially spherical.

A dispensing container for viscous products features a cream pot having an inner cylinder defining a storage volume to store a viscous product; a cap closes the cream pot and has a dispensing outlet; a screw rod rotatably connects to the cream pot; a piston having an inner thread couples to the screw rod so rotation of the screw rod moves 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 dispense the product through the dispensing outlet; an indexing mechanism locks the screw rod in rotational positions with respect to the cream pot and has indexing spring elements located at the screw rod and indexing sections located at a bottom of the cream pot, the indexing spring elements interact with the indexing sections to lock the screw rod with respect to the cream pot.

A dispensing container for viscous products features a cream pot having an inner cylinder defining a storage volume to store a viscous product; a cap closes the cream pot and has a dispensing outlet; a screw rod rotatably connects to the cream pot; a piston having an inner thread couples to the screw rod so rotation of the screw rod moves 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 dispense the product through the dispensing outlet; an indexing mechanism locks the screw rod in rotational positions with respect to the cream pot and has indexing spring elements located at the screw rod and indexing sections located at a bottom of the cream pot, the indexing spring elements interact with the indexing sections to lock the screw rod with respect to the cream pot.

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.