Cartridge for a vapour generating system
AssigneeJT International SA
InventorHee Khiem Tan
Life of this patent
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Abstract
A cartridge for a vapour generating system such as an e-cigarette includes a layer of mesh disposed across the airflow path, wherein at least a surface of the mesh includes a water-repellent material. The mesh permits the flow of air along the airflow path, while resisting the passage of condensed vapour-generating liquid that might leak from either the air inlet or air outlet. The water-repellent material may be a surface coating of a fluoropolymer such as PTFE or a ceramic nano-coating. Preferably the mesh has an average pore size less than 30 μm. The mesh may be a generally planar sheet supported in a prefabricated cartridge closure assembly, which also defines the air inlet.
Claims13
A cartridge for a vapour generating system, the cartridge comprising:
- an air inlet;
- a vaporization chamber;
- an air outlet;
- an airflow path extending from the air inlet through the vaporization chamber to the air outlet;
- and
- a mesh disposed across the airflow path;
- wherein at least a surface of the mesh comprises a water-repellent material, and
- wherein the cartridge further comprises a cartridge closure assembly, which comprises the air inlet, the mesh, a cartridge cover comprising the air inlet, a gasket, and a layer of the mesh mounted between the cartridge cover and the gasket.
Dependencies are inferred from the claim text.