COFFEE MACHINE

• US 20080190297A1
• Filed: 01/28/2008
• Published: 08/14/2008
• Est. Priority Date: 02/08/2007
• Status: Active Grant

• Current Assignee: WMF Group Gmbh (SEB SA)
• Original Assignee: WMF Wã¼Rttembergische Metallwarenfabrik AG
• Inventors: Gussmann, Jochen, Weinberger, Ludwig, Krips, Tobias
• Granted Patent: US 8,833,237 B2
• Time in Patent Office: Days
• US Class Current: 99/280
• CPC Class Codes: A47J 31/404 Powder dosing devices
• CPC Class Codes: A47J 31/42 Beverage-making apparatus with incorporated grinding or roasting means for coffee coffee mills A47J42/00; coffee roasters in general A23N12/08

Abstract

A coffee machine (1) a coffee grinding device (9), a brewing device (5), a brewing water source (7) and a flowmeter (8), which for the user offers a particularly simple setting of the extract content of a coffee beverage. Display device (16) is provided for displaying the flow rate acquired on the flowmeter (8).

Claims

1. Coffee machine (1), comprising a coffee grinding device (9), a brewing device (5), a brewing water source (7) a flowmeter (8), and a display device (16) for displaying the flow rate determined by the flowmeter (8).

2. Coffee machine according to claim 1, and a device (19) for the user-specific setting of the grinding grade of the coffee grinding device (9).

3. Coffee machine according to claim 1 wherein the flowmeter (8) is arranged before the brewing device (5).

4. Coffee machine according to claim 1 and a device for the processing of measurement data obtained by the flowmeter (8) and for the conversion of these measurement data into display data.

5. Coffee machine according to claim 1 and a comparator device for comparing the measurement data obtained by the flowmeter (8) with at least one limit, and a display device (16) for displaying an infringement of the limit.

6. Coffee machine according to claim 5, wherein the display device (16) is formed for a visual display.

7. Coffee machine according to claim 6, wherein the display device (16) includes a level display.

8. Coffee machine according to claim 1 wherein that the grinding device (9) has a setting device (19) for the grinding grade that can be actuated manually.

9. Method of operating a coffee machine (1) with a grinding device (9), a brewing device (5), a brewing water source (7) and a flowmeter (8), comprising the following steps:

Acquiring measurement data of a flow rate on the flowmeter (8);

Converting the measurement data into display data;

Displaying the display data on a display device (16) in a form identifiable by the user; and

Changing of a grinding grade setting on the grinding device (9) by the user.

10. Coffee machine according to claim 4, whereing the measurement data is of the brewing pressure.

11. Coffee machine according to claim 7, wherein the level display is a bar indicator (17).