A portable device designed for household and camping use, for the electricity-free preparation of coffee and frothing of liquids using steam jets in one unit.
A portable device combining coffee brewing and liquid frothing using steam jets addresses the need for a unified, electricity-free solution by integrating a water boiler, riser pipe, and steam wand for safe steam generation and frothing, achieving efficient and safe operation.
Patent Information
- Application Number
- DE202025002336
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-08-14
- Publication Date
- 2025-12-31
- Estimated Expiration
- 2035-08-31
AI Technical Summary
Existing devices lack a portable solution that can efficiently combine coffee preparation and liquid frothing using steam jets without the need for electricity.
A portable device integrating a water boiler, modified riser pipe, pressure-tight seal, and steam wand, allowing for the generation of pressurized steam to froth liquids while brewing coffee, with safety features like thermal insulation and a pivotally mounted steam lance.
Enables simultaneous coffee preparation and liquid frothing in a single, portable, electricity-free unit, ensuring safe and efficient operation.
Smart Images
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Abstract
Description
[0001] The invention relates to a mobile device for household and camping use, which combines the preparation of coffee with the possibility of frothing liquids using steam jets.
[0002] The device is based on the principle of an espresso maker. The coffee is first brewed conventionally. The water boiler (1) is then sealed pressure-tight and reheated, causing steam pressure to build up inside. A pressure relief valve signals when the required operating pressure has been reached. After manually opening a valve (5), the pressurized steam escapes through a swiveling steam wand (7) and is used to heat or froth liquids, such as milk, in a separate container.
[0003] The device comprises a water boiler (1), a modified riser pipe (3), a carafe top (2), a pressure-tight seal (5), and a steam wand (7) guided over a valve (9). The seal (5) allows either the riser pipe (3) to be opened for coffee dispensing or to be sealed pressure-tight for steam generation. It consists of a threaded bolt, a heat-insulated handle, and a splash guard (4) with a sealing fit, which ensures safe handling. One or more axial longitudinal grooves in the riser pipe (3) ensure the flow of coffee when open and a reliable seal when closed.
[0004] The steam lance (7) is connected to the boiler (1) via a valve (9) to direct the steam. It is pivotally mounted and can optionally be disconnected from the valve (9) by means of a pressure-tight coupling (10) to prevent component collisions. The handle of the valve (9) is thermally insulated to ensure safe handling.
[0005] The device thus enables the combination of the two functions - coffee preparation and frothing of liquids - in one portable device. Reference symbol list 1 kettle 2 can tops 3 riser pipe 4 splash guards 5 Closure 6 handle 7 Steam lance 8 Steam nozzle 9 valve 10 Clutch
Claims
[1] Combination of two functions Device for preparing coffee and for frothing liquids using steam jets, characterized by that both functions are combined in a portable device that is operated using a common water boiler. [2] - Locking mechanism Locking mechanism according to claim 1, characterized by , that a riser pipe with internal thread and at least one axial longitudinal groove accommodates a screw-in closure with threaded bolt, heat-insulated handle and splash guard with sealing seat, wherein the closure is adjustable between a pressure-tight closed position and an open position for coffee dispensing. [3] - Pressure-tight unit closure mechanism according to claim 2, characterized by , that in the closed position the riser pipe, the splash guard and the closure together with the boiler form a pressure-tight unit suitable for steam generation. [4] - Steam wand Steam wand according to claim 1, characterized by that it is connected to the water boiler via a valve, is pivotably mounted around a vertical axis and has a steam nozzle through which pressurized steam escapes to froth liquids. [5] -Optional coupling steam lance according to claim 4, characterized by , that it is detachably connected to the valve via a pressure-tight coupling in order to adapt the device to geometric boundary conditions without impairing its functionality. [6] - Operating cycle device according to claim 1, characterized by , that after the coffee preparation is complete, a steam operating mode is activated simply by screwing in the cap (5) without opening the device.