초록 ▼

A disposable dispensing system includes a collapsible container for liquid material sealingly connected to a pump. The pump includes a housing forming a chamber and a dispensing opening, wherein the pressure in the chamber may be varied for pumping liquid from the container to the chamber, and from

A disposable dispensing system includes a collapsible container for liquid material sealingly connected to a pump. The pump includes a housing forming a chamber and a dispensing opening, wherein the pressure in the chamber may be varied for pumping liquid from the container to the chamber, and from the chamber to the dispensing opening. A regulator is fixedly arranged in the chamber for regulating flow of liquid between the container and the chamber, and between the chamber and the dispensing opening. The pump may assume a closed position, in which a volume of liquid is drawn from the container to the chamber by a negative pressure created in the chamber, and a dispensing position, in which a volume of liquid is drawn from the chamber to the dispensing opening.

대표청구항 ▼

1. A disposable dispensing system, comprising: a collapsible container for liquid material; anda pump being sealingly connected to the collapsible container, the pump being configured for withdrawal of liquid material from the container during collapse thereof, the pump comprisinga housing forming a

1. A disposable dispensing system, comprising: a collapsible container for liquid material; anda pump being sealingly connected to the collapsible container, the pump being configured for withdrawal of liquid material from the container during collapse thereof, the pump comprisinga housing forming a chamber and a dispensing opening, wherein the pressure in the chamber may be varied for pumping liquid from the container to the chamber, and further from the chamber to the dispensing opening, anda regulator fixedly arranged in the chamber, the regulator comprising an inner valve for regulating a flow of liquid between the container and the chamber, an outer valve for regulating a flow of liquid between the chamber and the dispensing opening, and a stem extending in a straight, single longitudinal extension between the inner valve and the outer valve,wherein the pump is configured to assume a closed position, in which a volume of liquid is drawn from the container to the chamber by a negative pressure created in the chamber, and a dispensing position, in which a volume of liquid is drawn from the chamber to the dispensing opening,wherein the regulator and the housing are made of a resilient material andthe regulator and the housing are configured to automatically reassume their original shapes, thereby returning the pump from said dispensing position to said closed position, andthe container is a semi-rigid collapsible container, having one rigid longitudinal half and one compressible longitudinal half such that, during emptying, the compressible longitudinal half will conform to the rigid longitudinal half, andwherein when the regulator assumes an original shape, the outer valve is in a symmetrical position in the chamber, corresponding to the closed position of the pump; and when the regulator assumes a distorted shape, the outer valve is in a tilted position in the chamber, corresponding to the dispensing position of the pump, a center of the outer valve being closer to a wall of the chamber when the outer valve is in the tilted position relative to when the outer valve is in the symmetrical position. 2. The dispensing system according to claim 1, wherein the pump is made of two parts: a one-piece housing and the regulator which is a one-piece regulator. 3. The dispensing system according to claim 1, wherein the materials of the pump are all the same, such that the pump is recyclable as a single unit. 4. The dispensing system according to claim 1, wherein the materials of the pump and of the container are all the same, such that the entire system is recyclable as a single unit. 5. The dispensing system according to claim 1, wherein the regulator is resilient along the length of the stem. 6. The dispensing system according to claim 1, wherein the regulator is arranged inside the chamber such that an external force compressing the chamber will simultaneously result in bending of the regulator, setting the pump in the dispensing position, and when the external force is removed, the chamber and the regulator will both automatically return to their original shapes, setting the pump in the closed position. 7. The dispensing system according to claim 1, wherein an innermost end of the housing is provided with a connection member for connection, direct or via an additional connector, to said collapsible container. 8. The dispensing system according to claim 7, wherein said connection member comprises a collar, which is to be connected to said collapsible container via a separate connector. 9. The dispensing system according to claim 8, wherein said connector snap-fits with said collar and/or said collapsible container. 10. The dispensing system according to claim 1, wherein the regulator is resilient along a length of the regulator so as to be bendable upon application of an external force to the pump, from an original shape, corresponding to the system being in the closed position, to a distorted shape, corresponding to the system being in the dispensing position, with the regulator automatically returning to the original shape when the external force is removed, whereby the regulator forms part of a return member. 11. A dispenser containing a dispensing system according to claim 1. 12. The dispenser according to claim 11, further comprising a push button being movable from a closed position to a dispensing position for dispensing liquid from the dispensing system by mechanical action, and, upon release of said mechanical action, the push button being automatically returned to the closed position by a return member of the dispensing system. 13. The dispensing system according to claim 1, wherein a guide member is arranged on an outer side of the inner valve, the guide member extending transversely so as to confine bending of the stem to a portion of the stem extending outside the guide member. 14. The dispensing system according to claim 13, wherein the guide member extends along a circumference of the stem so as to symmetrically restrict movement of the stem. 15. The dispensing system according to claim 13, wherein the guide member is formed from four bars arranged so as to form a cross with the stem at a center of the cross. 16. A method for dispensing liquid from a dispensing system in accordance with claim 1, comprising: exerting the chamber to an external force so as to compress the chamber for dispensing fluid from the system; andreleasing said external force thus allowing the system to automatically return to the closed position. 17. A disposable dispensing system, comprising: a collapsible container for liquid material; anda pump sealingly connected to the collapsible container, the pump being made from a resilient material, the pump being configured for withdrawal of liquid material from the container during collapse thereof, the pump comprisinga housing forming a chamber and a dispensing opening, wherein the pressure in the chamber is varied for pumping liquid from the container to the chamber, and further from the chamber to the dispensing opening, anda regulator fixedly arranged in the chamber for regulating a flow of liquid between the container and the chamber, and between the chamber and the dispensing opening, the regulator including a stem extending in a straight, single longitudinal extension between an inner valve and an outer valve, the stem being resilient and bendable sideways so as to resume an original shape of the stem after bending, a guide member being arranged on an outer side of the inner valve, the guide member extending transversely so as to confine bending of the stem to a portion of the stem extending outside the guide member,wherein the pump is configured to assume a closed position, in which a volume of liquid is drawn from the container to the chamber via the inner valve by a negative pressure created in the chamber, and a dispensing position, in which a volume of liquid is drawn from the chamber to the dispensing opening via the outer valve,the regulator and the housing are configured to automatically reassume their original shapes, thereby returning the pump from said dispensing position to said closed position andthe container is a semi-rigid collapsible container, having one rigid longitudinal half and one compressible longitudinal half such that, during emptying, the compressible longitudinal half will conform to the rigid longitudinal half. 18. The dispensing system according to claim 17, wherein the guide member extends along a circumference of the stem so as to symmetrically restrict movement of the stem. 19. The dispensing system according to claim 17, wherein the guide member is formed from four bars arranged so as to form a cross with the stem at a center of the cross.