Espresso coffee machine with preinfusion device
AssigneeLa Marzocco S.R.L.
InventorPiero Bambi
Life of this patent
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Abstract
An espresso coffee machine comprises a boiler and a pump for feeding hot water under pressure to one or more brew groups (1), each of which comprises a receptacle (24) for infusing a predetermined dose of ground coffee, a hot water feed pipe (38) and an outlet pipe (40). Manual operating means (30, 50) are provided at the inlet of each brew group for selectively putting the coffee powder receptacle (24) in communication with the water feed pipe (38), with the outlet pipe 40 or with both the pipes in order to preinfuse the coffee powder.
Claims11
An espresso coffee machine comprising a brew group having a boiler and a pump for feeding a flow of hot water under pressure to the brew group, wherein the brew group comprises:
- a receptacle for infusing a predetermined dose of ground coffee, a hot water feed pipe and an outlet pipe;
- wherein the espresso coffee machine further comprises a manual operating element for diverting and dividing the flow of hot water from the boiler at the inlet of the brew group for selectively putting the infusion receptacle in communication with one of (1) the water feed pipe, (2) the outlet pipe, and (3) simultaneously both the water feed pipe and the outlet pipe in order to preinfuse coffee powder, wherein the element is configured to manual operation by a user so that preinfusion time can be set at a discretion of the user.
Dependencies are inferred from the claim text.