Multi-Screen Foam Spout for Uniform Cold Beverage Microfoam
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Solution Overview
Problem
Current methods for producing microfoams in the beverage industry are barista-dependent, inefficient for cold beverages, and struggle with non-homogenous liquids, requiring complex and costly steam systems that are not suitable for creating microfoams from cold milk or diverse liquid mixtures.
Innovation Solution
A spout system with a series of screens that progressively transforms gas bubbles in a pressurized liquid mixture into smaller, uniform foam bubbles, capable of handling both homogenous and non-homogenous liquids, and functioning with both hot and cold liquids, integrated with a manifold for controlled mixing and agitation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If steam wands are used to produce microfoam, then hot beverage microfoam can be created, but the system becomes complex and expensive requiring compliance with consumer safety standards
Solution Approach 1:
The patent replaces the steam-based thermal system with a pressurized air injection system. Instead of using steam wands that require complex safety compliance, the invention uses a pressurized air source injected through a spout with screens to create microfoam mechanically, eliminating the need for steam generation equipment and associated safety systems while maintaining microfoam production capability
Solution Approach 2:
The invention utilizes pneumatic principles by injecting pressurized air through a spout containing screens into the liquid. The pressurized air bubbles pass through the screen structure to create controlled microfoam, replacing the thermal steam mechanism with a pneumatic system that is simpler and does not require steam system safety compliance
2Adaptability or versatility
If steam wands are used to produce microfoam, then hot beverages can be frothed, but the system is not suitable for creating cold microfoams
Solution Approach 1:
The pressurized air injection system with screens is designed to work with liquids at any temperature. The same spout and screen configuration that produces microfoam from hot beverages also effectively creates microfoam from cold beverages, making the system universal and eliminating the limitation of steam wands which cannot cool the liquid while frothing
3Reliability
If manual barista technique is used to create microfoam, then high quality consistent microfoam can be produced, but the process is time-consuming and not commercially feasible for busy environments
Solution Approach 1:
The pressurized air injection system with screens automatically produces consistent microfoam without requiring skilled manual operation. The system self-regulates the bubble formation through the screen structure, eliminating the need for barista skill while maintaining consistency and enabling rapid production suitable for busy commercial environments
4Adaptability or versatility
If steam systems are used for microfoam production, then hot beverages can be served, but the system cannot efficiently handle non-homogenous liquids
Solution Approach 1:
The pressurized air injection system allows for adjustable parameters including air pressure, spout geometry, and screen configuration. These parameters can be optimized for different liquid types including non-homogenous liquids, enabling the system to adapt to various beverage compositions while maintaining effective microfoam production that steam systems cannot achieve
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables automated, efficient, and consistent production of microfoams with controlled density and viscosity, suitable for various beverages, including cold specialty drinks, reducing dependence on skilled operators and complex steam systems, and expanding the range of producible microfoams.
Implementation Method 1
a plurality of screens disposed in series within the spout enclosure for successively screening the pressurized mixture, each screen having a plurality of holes therein and consecutive screens of said series having a screen spacing therebetween, the successive screening of the pressurized mixture progressively transforming the gas bubbles therein into foam bubbles of a smaller and generally uniform size
Implementation Method 2
A turbulence mechanism agitates or mixes the pressurized mixture within the mixing chamber, thereby ensuring a proper mixing of both homogenous and non-homogenous liquids in the pressurized mixture before the bubbles are screened by the plurality of screens
Data Source
AI summary
A spout, system, and method for producing a foam from a pressurized mixture of a liquid containing gas bubbles, e.g., air bubbles. The spout consists of a spout enclosure defining the body of the spout, and which receives the pressurized mixture and conveys the foam out of the spout enclosure. The spout enclosure houses a plurality of screens disposed in series that successively screen the pressurized mixture. Each screen is separated from a consecutive screen by a screen spacing. The screening of the pressurized mixture progressively transforms the gas bubbles in the liquid into foam bubbles of a smaller and generally uniform size. The system uses a manifold having a plurality of intakes which introduce under pressure into a chamber gas, and a solute, solvent or liquid, thereby generating the pressurized mixture containing gas bubbles. This mixture is conveyed out of the chamber via an outtake to the spout enclosure.