Espresso coffee maker having an espresso brew unit
AssigneeEugster/Frismag AG
InventorMax Oehninger
Life of this patent
Estimating the term…
Abstract
In an espresso coffee maker having an espresso brew unit (1) and a coffee outflow duct (18) in fluid-conductive connection with the espresso brew unit via a crema valve (15) and having an end sided coffee outflow (19), no brewed residual coffee should remain in the coffee outflow duct nor leak out, for instance as leakage, through the coffee outflow. In order to avoid this, a return-flow suction unit (21), which is preferably independent except for a drive means, is in fluid-conductive connection with the coffee outflow duct (18) between crema valve (15) and coffee outflow (19), which is automatically activated when a brewing process is finished.
Claims7
An espresso coffee maker having an espresso brew unit (1, 1a, 1b) and a coffee outflow duct (18) in fluid-conductive connection with the espresso brew unit via a crema valve (15) and having a coffee outflow (19) characterized in that
- a return-flow suction unit (21, 21a, 21b) is in fluid-conductive connection with said coffee outflow duct (18) between said crema valve (15) and said coffee outflow (19), and said return-flow suction unit (21, 21a, 21b) is automatically activated to suck residual coffee out of the coffee outflow duct (18) when a brewing process is finished.
An espresso coffee maker having an espresso brew unit (1, 1a, 1b) and a coffee outflow duct (18) in fluid-conductive connection with the espresso brew unit via a crema valve (15) and having a coffee outflow (19) wherein
- a return-flow suction unit (21, 21a, 21b) is independently provided and is in fluid-conductive connection with said coffee outflow duct 18 between said crema valve (15) and said coffee outflow (19) and said return flow suction unit (21, 21a, 21b) is automatically activated to suck residual coffee out of said outflow duct (18) when a brewing process is finished.
Dependencies are inferred from the claim text.