Coffee-making apparatus and method
AssigneeGiocoguado Ltd.
InventorWilliam Playford
Life of this patent
Estimating the term…
Abstract
A coffee-making apparatus has a brew-water chamber for containing heated brew water, a coffee chamber, a water delivery system for delivering heated brew water from the brew-water chamber to the coffee chamber, and a cooling apparatus for cooling the heated brew water before it reaches the coffee chamber. The water delivery system comprises a conduit and a valve, openable when the pressure at a valve inlet reaches a valve opening pressure, for controlling a flow of brew water into the coffee chamber. The water delivery system is configured to control the flow rate of brew water while the coffee chamber is filling with brew water. A method of making coffee is also provided.
Claims20
A coffee-making apparatus, comprising:
- a brew-water chamber for containing heated brew water;
- a coffee chamber;
- a water delivery system for delivering heated brew water from the brew-water chamber to the coffee chamber;
- and
- a cooling apparatus for cooling the heated brew water before it reaches the coffee chamber;
- in which the water delivery system comprises a conduit and a valve, openable when the pressure at a valve inlet reaches a valve opening pressure, for controlling a flow of brew water into the coffee chamber;
- in which the water delivery system is configured to control the flow rate of brew water while the coffee chamber is filling with brew water, and in which the valve is configured so that, when the valve opens, the valve controls the flow rate of brew water by varying the position of the valve to maintain the valve inlet pressure at a pressure equal to the valve opening pressure.
A method of making coffee, comprising the steps of:
- heating brew water contained in a brew-water chamber until the pressure at a valve inlet of a valve reaches a valve opening pressure, at which the valve opens and brew water flows through a water delivery system to a coffee chamber;
- cooling the brew water by heat flow to a cooling apparatus as it flows through the water delivery system;
- and
- controlling the flow rate of the brew water while the coffee chamber is filling with water by varying the position of the valve to maintain the valve inlet pressure at a pressure equal to the valve opening pressure.
Dependencies are inferred from the claim text.