Liquid heating controls
AssigneeBreville Pty Limited
InventorJohn William McClean
Life of this patent
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Abstract
A switch control mechanism in a liquid boiling apparatus employs the lifting force of bubbles formed in the boiling liquid to actuate a switching system which controls the application of energy to boil the liquid.
Claims8
A switch control mechanism adapted to control the application of thermal energy to heat and/or boil a liquid, said mechanism comprising movable means arranged to be acted upon by bubbles formed in a liquid as thermal energy is applied to the liquid whereby lifting forces are applied to the movable means by said bubbles to move said movable means to a location to effect switching to control the application of thermal energy to the liquid.
A method of operating a switching means in a liquid heating environment comprising locating movable means in the liquid such that bubbles formed in the liquid, under the application of thermal energy to the liquid, causes the movable means to move to a position which effects operation of the switching means.
Dependencies are inferred from the claim text.