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Replaceable nozzle for producing a frothed liquid

A nozzle and liquid technology, applied in the nozzle field, can solve the problems of discarding, discomfort, bulky, etc., and achieve the effect of structural solution

Inactive Publication Date: 2006-10-18
SOC DES PROD NESTLE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This configuration is therefore bulky and economically and environmentally unsuitable for applications where disposal after a limited number of uses

Method used

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  • Replaceable nozzle for producing a frothed liquid
  • Replaceable nozzle for producing a frothed liquid
  • Replaceable nozzle for producing a frothed liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] Figure 1 shows a cross-sectional view of a nozzle 1 mountable on a steam outlet 12 of a coffee machine for preparing cappuccinos. The steam outlet 12 can be inserted into the steam opening 3 of the nozzle 1, which is adapted either to a mating steam outlet 12 of a particular size (in the case of a non-elastomeric material for the steam opening 3), or to a steam outlet of a different size. Steam outlet (in case of a flexible material such as silicone for the steam opening 3).

[0047] Into the duct 2 can be inserted a suction tube 15, for example for aspirating liquid, eg milk, from a milk supply.

[0048] In case the production of hot milk is envisaged, it is sufficient to mix the milk supplied via the pipe 2 with the steam supplied from the steam inlet 3 . When producing cappuccino-flavored coffee, it is necessary to froth the hot milk. To this end, an air inlet 40 is provided which leads into the duct 2 for supplying milk.

[0049]The main body of the nozzle 1, ie ...

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PUM

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Abstract

A nozzle adaptable to the steam outlet of a coffee machine is designed to froth a liquid such as e.g. milk. Said nozzle comprises in the direction of the steam flow path: a steam inlet opening, a restriction with limited cross-section adapted to accelerate the velocity of the steam flow, and at least one cavity having a cross-section larger than the restriction and from which the frothed liquid can be drained. The nozzle further comprises an outer casing comprising a smoothening reservoir and a jet breaking surface facing the opening and at least one outlet opening radially offset relatively to the opening of the portion of the enlarged mixing cavity. The outer casing is arranged at least partially around the tubular portion of mixing cavity.

Description

technical field [0001] The present invention relates to a nozzle attachable to the steam outlet of a coffee machine. Especially for coffee machines suitable for producing cappuccino flavored coffee, it is known to provide a steam outlet cooperating with a milk supply to produce hot frothed milk. Background technique [0002] To produce frothed milk, a defined amount of air is usually drawn into the flow of milk and steam. [0003] When this frothing operation is repeated, the residue of the hot milk, which is susceptible to bacterial contamination, will eventually contaminate the spout. Thus, it is well known that such foaming nozzles are ideally rinsed and cleaned after each use. [0004] From US 6,499,389 B1 is known a device for generating milk froth for cappuccinos, which has a nozzle structure arranged downstream of the steam pipe and has a vacuum chamber into which the milk supply line leads. An air line is connected to the milk supply line upstream of the vacuum ch...

Claims

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Application Information

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IPC IPC(8): A47J31/44
CPCA47J31/4485
Inventor M·施蒂格尔A·约阿基姆
Owner SOC DES PROD NESTLE SA
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