Milk frother appliance, drinks preparation system and a drinks preparation machine

• US 10,638,872 B2
• Filed: 09/22/2015
• Issued: 05/05/2020
• Est. Priority Date: 09/24/2014
• Status: Active Grant

• Current Assignee: QBO Coffee Gmbh
• Original Assignee: QBO Coffee Gmbh
• Inventors: Balkau, Werner
• Primary Examiner(s): Alexander, Reginald
• Application Number:
  US15/513,203
• Publication Number:
  US 20170303732A1
• Time in Patent Office: 1,687 Days
• Field of Search: 99293, 993231, 261DIG 16, 261DIG 26, 261DIG 76
• CPC Class Codes: A47J 31/44 Parts or details or accessories of beverage-making apparatus filters or strainers A47J31/06
• CPC Class Codes: A47J 31/4485 Nozzles dispensing heated and foamed milk, i.e. milk is sucked from a milk container, heated and foamed inside the device, and subsequently dispensed from the nozzle
• CPC Class Codes: A47J 31/4489 Steam nozzles, e.g. for introducing into a milk container to heat and foam milk
• CPC Class Codes: A47J 31/4496 Means to produce beverage with a layer on top, e.g. of cream, foam or froth
• CPC Class Codes: A47J 31/469 Details of hydraulic circuits

Abstract

An appliance for preparing frothed milk includes a container for receiving milk, and an electrically operated drive for delivering and/or frothing the milk. The appliance includes a docking element for connection to a drinks preparation machine. The docking element includes a connection for steam delivered by the drinks preparation machine, —an interface for electrical current supplied by the drinks preparation machine, and a milk froth outlet for the frothed milk.

Claims

1. An appliance for preparing frothed milk, comprising a container for receiving milk, and an electrically operated drive device for delivering and frothing the milk, and a docking element for connection to a drinks preparation machine, said docking element comprising

a connection for steam delivered by the drinks preparation machine;

an interface for electrical current that is supplied by the drinks preparation machine and is for operating the drive device; and

a milk froth outlet for the frothed milk.

2. The appliance according to claim 1, wherein a distance between the milk froth outlet on the one hand and a plane of an end surface of the docking element on the other hand, said end surface comprising the connection for steam and the electrical interface, is maximal 2.5 cm.

3. The appliance according to claim 1, wherein the docking element is designed as a continuous, body-forming element, in whose interior conduits for the milk and steam run.

4. The appliance according to claim 3, wherein the docking element comprises a docking element that is designed as a shaped body of a plastic and forms at least one conduit for milk.

5. The appliance according to claim 3, wherein the docking element comprises a main body with a plurality of fluid channels and a supplementary part, that is reversibly removable from the main body, wherein the supplementary part comprises a material which is softer in comparison to the main body, said supplementary part being continuous and comprising several elements through which milk, steam, water and/or air can flow and which engage into the fluid channels.

6. The appliance according to claim 1, further comprising a milk frothing unit with a gear pump which at an inlet side is connected to a milk feed conduit and to an air feed.

7. The appliance according to claim 1, further comprising a mixing nozzle, in which steam can be brought together with the milk and air, wherein the mixing nozzle is arranged in the docking element and is arranged directly above the milk froth outlet.

8. The appliance according to claim 7, wherein the mixing nozzle is designed to exert a suction effect upon air and/or upon milk flowing into the mixing nozzle, on account of a flow of the steam.

9. The appliance according to claim 1, wherein the docking element further comprises a connection for cleaning water and/or cleaning steam which is/are delivered by the drinks preparation machine, from which connection a cleaning water conduit and/or cleaning steam conduit passes through the docking element.

10. A drinks preparation machine for preparing a hot drink and for to which an appliance according to claim 1 may be connected, comprising a delivery location for steam, for coupling onto the steam connection, and an electrical interface at the drinks preparation machine side, for coupling onto the interface of the appliance, wherein the delivery location and the drinks-preparation-machine-side interface are arranged such that they can be contacted by the interface of the docking element.

11. The drinks preparation machine according to claim 10, wherein a drinks outlet for the hot drink is arranged in direct proximity to the delivery location.

12. The drinks preparation machine according to claim 10, comprising a front with a placement platform that projects from the front and is for receiving a drinks vessel and with a drinks outlet hood projecting from the front above the placement platform, wherein a docking location with the delivery location and with the drinks-preparation-machine-side interface is present laterally on the drinks outlet hood.

13. A drinks preparation system, comprising an appliance according to claim 1, as well as a drinks preparation machine for preparing a hot drink and for to which the appliance may be connected, said drinks preparation machine comprising a delivery location for steam for coupling onto the steam connection, and an electrical interface at the drinks preparation machine side for coupling onto the interface of the appliance, wherein the delivery location and the drinks-preparation-machine-side interface are arranged such that they can be contacted by the interface of the docking element.

14. The drinks preparation system according to claim 13, wherein the drinks preparation system comprises a placement platform for a drinks vessel, and in the docked-on condition of the appliance, the milk froth outlet as well as the drinks outlet of the drinks preparation machine are arranged vertically above the placement platform.

15. The drinks preparation system according to claim 14, wherein a horizontal distance between the milk froth outlet and the drinks outlet at the most is 5 cm in a docked condition.