초록 ▼

A dispenser (1) for dispensing a mixture of two or more fluids, e.g. liquid (9) and gas (4) (e.g. air) as a foam and/or mist, the dispenser comprising a flexible container (6) for a liquid including a conduit (8) having first and second end portions (11,12) the first end portion (11) terminating in

A dispenser (1) for dispensing a mixture of two or more fluids, e.g. liquid (9) and gas (4) (e.g. air) as a foam and/or mist, the dispenser comprising a flexible container (6) for a liquid including a conduit (8) having first and second end portions (11,12) the first end portion (11) terminating in an opening in the container (6) through which the mixture is expelled from the container (6) and the second open end portion (12) being close to the base of said container, wherein the conduit (8) includes a third open end portion (13) which is located close to the top (16) of the container and laterally inclined or opposed to the second open end portion (12) and the dispenser further being provided with one or more three-dimensional turbulence elements (26) mounted in the flow path of the liquid before it leaves the dispensing opening.

대표청구항 ▼

The invention claimed is: 1. A dispenser for dispensing a liquid and gas mixture as a foam or mist, the dispenser comprising a flexible container for a liquid and a gas including a conduit having first and second end portions separated by a main tubular section, the first end portion terminating in

The invention claimed is: 1. A dispenser for dispensing a liquid and gas mixture as a foam or mist, the dispenser comprising a flexible container for a liquid and a gas including a conduit having first and second end portions separated by a main tubular section, the first end portion terminating in a dispensing opening in the container through which the mixture is expelled from the container and the second end portion being close to a base of said container, wherein the conduit includes a third end portion having an open mouth defined by a plane oriented parallel to and distant from the main tubular section, the third end portion being located close to a top of the container and laterally but non-circumferentially branching off from the main section, the dispenser further being provided with a polyurethane sponge as a three-dimensional turbulence elements element mounted in a flow path of the mixture before the mixture leaves the dispensing opening, the dispenser not having any mesh or net in a flow path of the liquid nor having a pump dispensing head. 2. Dispenser according to claim 1 wherein the gas and the liquid flowing to the dispensing opening meet just before or while the gas and liquid pass through the turbulence element. 3. Dispenser according to claim 1 further comprising a mixing chamber in the flow path close to the dispensing opening in a cap and down-stream from, or comprising, the dispensing opening connecting the flow path to a head space in the container. 4. Dispenser according to claim 3 wherein the turbulence element is mounted in, or is part of, the mixing chamber. 5. Dispenser according to claim 1 wherein the conduit has a configuration selected from the group consisting of branched, curved, kinked or a combination geometry thereof, to effect relative orientation of the second and third end portions. 6. Dispenser according to claim 1 wherein the conduit is curved or kinked to incline the second open end portion between 10-60 degrees to a longitudinal axis of the container. 7. Dispenser according to claim 1 wherein the third end portion extends from the main tubular section of the conduit at right angles. 8. Dispenser according to claim 1 wherein a top of the conduit is offset from a central longitudinal axis of the container. 9. Dispenser according to claim 1 wherein the liquid is a cleaning liquid comprising a foaming surfactant. 10. Dispenser according to claim 1 wherein the liquid is a cleaning liquid that does not contain undissolved solids. 11. Dispenser according to claim 1 wherein the container is filled with the liquid to less than 95% of an internal volume of the container. 12. A method of dispensing a foam or mist using a dispenser according to claim 1, the dispenser containing a liquid and the method comprising squeezing the dispenser to expel the liquid as a foam or mist. 13. A method of treating or cleaning a surface comprising applying a foam or mist to the surface using a dispenser according to claim 1, the dispenser containing a surface treatment or cleaning composition. 14. A dispenser for dispensing a liquid and gas mixture, the dispenser comprising a flexible container for a liquid and a gas including a conduit having first and second end portions separated by a main tubular section, the first end portion terminating in a dispensing opening in the container through which the mixture is expelled from the container and the second end portion being close to a base of said container, the conduit including a third end portion having an open mouth defined by a plane parallel to and distant from the main tubular section, the third end portion being located close to a top of the container and extending from an upper section of the conduit, wherein the third end portion laterally but non-circumferentially branches off from the main tubular section, the dispenser not having any mesh or net in a flow path of the liquid nor having a pump dispensing head. 15. Dispenser according to claim 14 wherein the conduit has a form selected from the group consisting of branched, curved, kinked or a combination geometry thereof to effect a relative orientation of the second and third end portions. 16. Dispenser according to claim 14 wherein the conduit is curved or kinked to incline the second end portion between 10-60 degrees to a longitudinal axis of the container. 17. Dispenser according to claim 16 wherein the conduit is kinked in the upper section by 20 degrees. 18. Dispenser according to claim 14 wherein a top of the conduit is aligned with a central longitudinal axis of the container. 19. Dispenser according to claim 14 wherein a top of the conduit is offset from a central longitudinal axis of the container. 20. Dispenser according to claim 14 wherein the conduit is a dip tube which co-operates with a container closure or cap. 21. Dispenser according to claim 14 wherein the liquid is selected from the group consisting of cream, milk, or a cleaning liquid. 22. Dispenser according to claim 21 wherein the cleaning liquid does not contain undissolved solids. 23. Dispenser according to of claim 14 wherein the container is filled with the liquid to less than 95% of an internal volume of the container. 24. A method of dispensing a foam or mist using a dispenser according to claim 14, the dispenser containing a liquid and the method comprising squeezing the dispenser to expel the liquid as a foam or mist. 25. A method of treating or cleaning a surface comprising applying a foam or mist to the surface using a dispenser according to claim 14, the dispenser containing a surface treatment or cleaning composition.