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(11) | EP 4 233 593 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | AEROSOL DELIVERY SYSTEM |
| (57) An aerosol delivery system has a fluid transfer article with a first region for holding
an aerosol precursor, and a wick which extends from the reservoir and makes abutting
unbonded contact with a heating region of a heater of the aerosol-delivery system.
There may be a seal closing the reservoir, with the wick extending through the seal
so that aerosol precursor may pass from the reservoir through the wick to the heating
surface. When the heater is active, that aerosol precursor will be heated to form
an aerosol or vapour. When the user sucks or inhales through the aerosol delivery
system, air flows through the air-flow pathway across the heating surface of the heater,
so that aerosol passes from the heater and/or wick to the user in the air-flow. The
heating region of the heater may be flexible. It may therefore deform due to the contact
between itself and the wick ensuring good contact therebetween. The fluid-transfer
article and the heater may be separable, to allow the fluid-transfer article to be
replaced. The heating region includes at least one electrically conductive filament
which generates heater when electrical current is passed therethrough. The or each
filament has a coating of electrically insulating material thereon, the coating having
a thickness not greater than 50µm.
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