System and apparatus

1. An assembly for transferring liquid between a dispenser and a cartomizer portion of a smoking-substitute device, said assembly comprising:

a first portion configured for sealably cooperating with a mutually cooperative formation of said cartomizer portion;

a second portion connected to said first portion and configured for sealably cooperating with a mutually cooperative formation of said dispenser; and

a chamber formed within said first and second portions, and including a first aperture at an end of said first portion and a second aperture at an end of said second portion;

wherein said assembly is configurable between:

a non-dispensing configuration in which liquid communication between said chamber and said first aperture is restricted; and

a dispensing configuration in which a liquid communication pathway is opened between the chamber and said first aperture to communicate liquid between said dispenser and said cartomizer portion through a dispenser outlet and cartomizer portion inlet, and a gas communication pathway is formed between a formation on a body of said second portion and said chamber for expulsion of gas from said cartomizer portion; and further wherein alternation between said non-dispensing configuration and said dispensing configuration is effected responsive to application of an actuation force, exerted via an actuation formation of said cartomizer portion, to a closure member located within said chamber; and

wherein, in the dispensing configuration, said first aperture includes a gas passageway within the actuation formation of said cartomizer portion.

2. The assembly as claimed in claim 1 , wherein the assembly is configure to close the liquid communication pathway responsive to removal of said actuation force.

3. The assembly as claimed in claim 1 , wherein, in the dispensing configuration, the assembly is operable to permit liquid to be transferred through the liquid communication pathway, and for a substantially equivalent volume of gas to be expelled from said cartomizer portion via said gas communication pathway.

4. The assembly as claimed in claim 1 , wherein said closure member is biased to close the liquid communication pathway in the absence of said actuation force.

5. The assembly as claimed in claim 1 , wherein said first portion comprises a male member configured to be received in a mutually complementary female member of said cartomizer portion.

6. The assembly as claimed in claim 1 , wherein said second portion comprises a male member configured to be received in a mutually complementary female member of said dispenser.

7. The assembly as claimed in claim 1 , configured for sealably cooperating with said cartomizer portion, and optionally securably cooperating with said cartomizer portion.

8. The assembly as claimed in claim 1 , wherein a portion of said liquid communication pathway is formed between said first aperture and said gas passageway.

9. The assembly as claimed in claim 1 , wherein said closure member is configured to sealably close said gas passageway responsive to application of said actuation force.

10. A system for transferring liquid between a dispenser and a cartomizer portion of a smoking-substitute device, comprising: an assembly according to claim 1 ; said dispenser configured to cooperate with and be operative with the assembly; and said cartomizer portion configured to cooperate with and be operative with the assembly.