Inductive heating magnetic structure for removing condensates from electrical smoking device
AssigneePhilip Morris USA Inc.
InventorDavid E. Sharpe
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Abstract
Thermal cleaning of an electrically heated smoking device, and in particular the removal of condensates formed within the smoking device as a result of extended periods of use, is achieved with a cleaning system that utilizes inductive heating that provides efficient and intense localized heating in the cleaning process. The thermal power of the inductive heating process is increased or the power necessary to activate the inductive heating process is decreased by the addition of a magnetic shell by itself or in combination with a magnetic pin.
Claims6
A cleaning apparatus in combination with an electrically heated cigarette smoking device for thermally cleaning condensates from elements within the electrically heated cigarette smoking device, the combination comprising:
- inductive coils which are part of an inductive heating element;
- a target element desired for thermal cleaning;
- wherein the target element is a metallic component within the electrically heated cigarette smoking device, said electrically heated cigarette smoking device further including a plurality of heater elements for pyrolyzing a tobacco product;
- and
- a magnetic shell;
- wherein the magnetic shell is located around the target element so that the target element may be inductively heated, and wherein the magnetic shell captures stray magnetic flux created during the heating of the target element and couples this energy into the target element.
Dependencies are inferred from the claim text.