Automatic espresso coffee machine
First Claim
1. An automatic coffee brewing machine for brewing espresso coffee from a coffee pod disposed in a pressure operated extraction head comprising, a hydraulic pressure operated extraction unit comprising a pair of extraction heads including means for moving the heads of each pair to and from each other, means associated with said extraction unit for positioning a pod of coffee between a pair of separated extraction heads, means for delivering heated water to the pod, positioned in the extraction unit, selective signal means for generating a signal representative of the desired volume of water to be delivered to the extraction head, flow signal generating means for generating a signal representative of the volume of water delivered to said extraction unit, memory and control means, including a microprocessor, for storing data corresponding to a plurality of possible volumes of water to be delivered to each unit, means for receiving selective signals and flow signals, for comparing said received signals to the data stored in said memory, and for operating said delivery means in accordance with said received signals and memory to deliver the selected volume of heated water to the pod.
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Accused Products
Abstract
The automatic espresso coffee machine brews coffee from coffee pods placed in an extraction head or in a plurality of extraction heads and is characterized in that it comprises an electronic control system, including a microprocessor and memory means, which operate all the operations of the machine. In particular, the machine carries out a continuous control of the water temperature in a boiler in order to keep that temperature in a narrow range of a selected temperature. It also controls the volume of the hot water delivered to each extraction head to be within a narrow range of predetermined volume. The machine diagnoses itself for possible failures and depleted supplies by showing on a display in code the kind of failure or of needed supply, i.e. coffee.
118 Citations
11 Claims
- 1. An automatic coffee brewing machine for brewing espresso coffee from a coffee pod disposed in a pressure operated extraction head comprising, a hydraulic pressure operated extraction unit comprising a pair of extraction heads including means for moving the heads of each pair to and from each other, means associated with said extraction unit for positioning a pod of coffee between a pair of separated extraction heads, means for delivering heated water to the pod, positioned in the extraction unit, selective signal means for generating a signal representative of the desired volume of water to be delivered to the extraction head, flow signal generating means for generating a signal representative of the volume of water delivered to said extraction unit, memory and control means, including a microprocessor, for storing data corresponding to a plurality of possible volumes of water to be delivered to each unit, means for receiving selective signals and flow signals, for comparing said received signals to the data stored in said memory, and for operating said delivery means in accordance with said received signals and memory to deliver the selected volume of heated water to the pod.
Specification