Coffee making machines
AssigneeChiaphua Industries Limited
InventorsJimmy Siu Yim Yung, John Duncan McNair
Life of this patent
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Abstract
An expresso coffee maker includes a steam outlet valve for supplying steam to froth milk for making cappuccino coffee. A valve member automatically closes off a tube when a water level in a water compartment falls below a low level. This closing off completes each expresso making cycle and ensures that sufficient water is retained, and sealed off, inside the compartment to sustain a supply of steam for frothing the milk.
Claims6
An expresso coffee maker comprising an electrically heated sealed water compartment, a tube, having two ends, extending down inside the compartment and terminating at one end adjacent a lower inner surface of the water compartment, a coffee compartment connected to the other end of the tube and having an outlet connected to pass coffee to an external container, including automatic valve means arranged to seal off the tube before all the water in compartment has evaporated so as to form a supply for steam for frothing milk, and a manually operable valve arranged to release the steam from the compartment to a frothing nozzle connected to the valve.
An express coffee maker comprising an electrically heated sealed water compartment, a tube, having two ends, extending down inside the compartment and terminating at one end adjacent a lower inner surface of the water compartment, a coffee compartment connected to the other end of the tube and having an outlet connected to pass coffee to an external container, including automatic valve means arranged to seal off the tube before all the water in compartment has evaporated so as to form a supply for steam for frothing milk, and a manually operable valve arranged to release the steam from the compartment to a frothing nozzle connected to the valve, the manually operable valve, mounted in a side wall of the water compartment adjacent a top of the water compartment, having a resiliently biassed plunger arranged to be moved against its bias to open the valve, the plunger slidable transversely to the side wall.
Dependencies are inferred from the claim text.