A dispenser (10) for dispensing a fluid from a container T comprises an inlet (14) for connecting to the container so as to receive the fluid therethrough, and an outlet (16). The outlet comprises at least two walls (18), each with a respective slit (22) thereon adapted to open to release fluid ther
A dispenser (10) for dispensing a fluid from a container T comprises an inlet (14) for connecting to the container so as to receive the fluid therethrough, and an outlet (16). The outlet comprises at least two walls (18), each with a respective slit (22) thereon adapted to open to release fluid therefrom when a predetermined pressure is applied to the fluid in the dispenser at the outlet, and to close to retain fluid in the dispenser at a pressure less than the predetermined pressure.
대표청구항▼
1. A dispenser and container combination for dispensing a fluid; the container arranged for containing the fluid, the container comprising a portion that is able to be displaced to apply pressure to the fluid contained in the container;the dispenser comprising:a first resilient part having an inlet
1. A dispenser and container combination for dispensing a fluid; the container arranged for containing the fluid, the container comprising a portion that is able to be displaced to apply pressure to the fluid contained in the container;the dispenser comprising:a first resilient part having an inlet for connecting to the container so as to receive from the container the fluid under pressure therethrough; and,a second elastomeric part having an outlet comprising at least two upstanding walls extending from the first resilient part, each wall having a respective slit on a distal end thereof adapted to open to release fluid therefrom once a predetermined pressure has been applied to the fluid in the dispenser at the outlet, and to close to retain fluid in the dispenser at a pressure less than the predetermined pressure, wherein the walls intersect as a point and the respective slit on each respective wall distal end extends from the point at which the walls intersect towards a lateral end of each respective wall such that the slits are co-joined at a respective proximal end thereof; and,at least one resilient support post located in the lateral end of, and covered by, each respective wall;wherein the second elastomeric part comprises at least one respective support region between and integral with at least one pair of walls positioned away from the slits and arranged so as to bias the slits towards a closed condition when no pressure is applied to the fluid,wherein the support posts are formed with the first resilient part and the second elastomeric part is molded onto the first resilient part, and wherein at least one support region comprises a bellows. 2. The dispenser of claim 1, wherein a respective lateral face of each of two adjacent said walls are on intersecting planes and the slits are each located on an end of at least one of the respective said walls. 3. The dispenser of claim 1, wherein the support posts comprise high density polyethylene. 4. The dispenser of claim 1, comprising three said support posts and three said walls, wherein each of the support posts is associated with a respective one of the walls. 5. The dispenser of claim 1, wherein each support region extends out from a plane of a respective face of its respective wall. 6. The dispenser of claim 1, wherein each support region is rounded. 7. The dispenser of claim 1, wherein the inlet is round. 8. The dispenser of claim 1, comprising a removable seal over the slits. 9. The dispenser of claim 8, comprising a removable seal over the slits, wherein the seal is frangibly connected to distal ends of the support posts. 10. The dispenser of claim 1, wherein the slits are equiangular to each other. 11. The dispenser of claim 1, wherein the walls and support regions comprise silicon. 12. The dispenser of claim 1, wherein the walls are parallel to a central dispenser axis that extends from the outlet to the inlet, said slits extending radially from the axis. 13. The dispenser of claim 1, comprising three said walls being equi-angularly spaced about a common axis. 14. A dispenser for dispensing a fluid from a container, the dispenser comprising: a first resilient part having an inlet for connecting to the container so as to receive the fluid therethrough; and,a second elastomeric part having an outlet comprising at least two upstanding walls extending from the first resilient part, each wall having a respective slit on a distal end thereof adapted to open to release fluid therefrom when a predetermined pressure is applied to the fluid in the dispenser at the outlet and to close to retain fluid in the dispenser at a pressure less than the predetermined pressure, wherein the walls intersect as a point and the respective slit on each respective wall distal end extends from the point at which the walls intersect towards a lateral end of each respective wall such that the slits are co-joined at a respective proximal end thereof; and,at least one resilient support post located in the lateral end of, and covered by, each respective wall;wherein the second elastomeric part comprises at least one respective support region between and integral with at least one pair of walls positioned away from the slits and arranged so as to bias the slits towards a closed condition when no pressure is applied to the fluid,wherein the support posts are formed with the first resilient part and the second elastomeric part is molded onto the first resilient part, and wherein at least one of the support region comprises a bellows. 15. The dispenser of claim 14 wherein the walls are planar and at least one of the walls lies on a plane intersecting the plane of at least one other wall. 16. The dispenser of claim 14 wherein the walls are formed from a material which is incompatible with the material from which the support posts are formed. 17. The dispenser of claim 14 wherein the first resilient part is formed from a polymer selected from a group comprising: a nylon (polyamide); a polyethylene such as high density polyethylene (HDPE); a polypropylene; a polyethylene terephthalate; a polybutylene terephthalate. 18. The dispenser of claim 14 wherein the second elastomeric part is formed from a polymer selected from a group comprising: silicon; a thermoplastic or thermoset elastomer-rubber; another relatively flexible/deformable elastomer; thermoplastic polyurethane (TPU).
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