Counterpressure Beverage Dispensing to Prevent Carbonation Foam

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Solution Overview

Problem

Existing beverage dispenser systems struggle to rapidly dispense carbonated beverages without excessive foaming, leading to reduced throughput and quality issues during high-demand events, and often result in wasted pre-poured drinks.

Innovation Solution

A beverage dispensing system that forms a sealing barrier between the container and dispenser head, using a moveable seal member to create a differential pressure for rapid dispensing, minimizing foam formation and allowing simultaneous or sequential dispensing of multiple beverages.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the volumetric flow rate of the dispenser system is increased to dispense beverages faster, then the dispensing speed improves, but excessive foaming of the fizzy beverage occurs

Engineering Contradiction:
Improvedispensing speedVSAvoidexcessive foaming
Core Design Contradiction:
SpeedVSObject-generated harmful factors

Solution Approach 1:

The system applies counter-pressure to the container before and during beverage dispensing to prevent foam formation. The counter-pressure mechanism is activated in advance and maintained throughout the dispensing process, opposing the harmful effect of foaming while allowing high-speed dispensing to proceed.

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The system changes the pressure parameter inside the container by introducing counter-pressure that balances the beverage pressure. This parameter modification allows the beverage to be dispensed at high flow rates without excessive foaming, as the pressure differential is controlled rather than uncontrolled.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If pre-pouring is used to meet high demand during busy periods, then the throughput improves, but the drink quality deteriorates due to contamination and warming

Engineering Contradiction:
ImprovethroughputVSAvoiddrink quality
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system enables self-service dispensing where customers can quickly obtain beverages without waiting for staff preparation. The automated counter-pressure dispensing system allows rapid service while maintaining beverage quality, eliminating the need for pre-pouring and its associated quality issues.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The counter-pressure mechanism is prepared in advance and automatically activated when dispensing begins, ensuring that quality maintenance is built into the process from the start. This preliminary preparation of the pressure system ensures high throughput without compromising drink quality through contamination or warming.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If manual dispensing by skilled operator is used, then the beverage quality is maintained, but the dispensing speed is slow and customer throughput is limited

Engineering Contradiction:
Improvebeverage qualityVSAvoidcustomer throughput
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system replaces manual mechanical dispensing with an automated counter-pressure mechanism. This substitution eliminates the need for skilled operators while maintaining beverage quality through controlled pressure differential, and simultaneously dramatically increases dispensing speed and customer throughput capability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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

The system enables rapid dispensing of carbonated beverages in under 10 seconds with minimal foaming, maintaining quality and reducing waste by allowing self-service and automated operation.

Implementation Method 1

By providing a beverage dispensing system capable of forming a sealing barrier between the container and the dispenser head it may facilitate the creation of a differential pressure between an interior and exterior of the container to allow a beverage to be rapidly dispensed into the interior of the container

Methodology Applied
Scientific EffectDifferential pressure: Pressure Gradient

Implementation Method 2

The at least one pressure source is configured to form a differential pressure between an interior and exterior of the container when the seal member is in the second condition

Methodology Applied
Scientific EffectCounter-pressure: Pressure Gradient

Data Source

PatentEP3765400B1Counterpressure beverage dispenser and method of use
Publication Date: 2026.01.07 EBAR INITIATIVES LTD
  • EP3765400B1 patent drawingFigure 1
  • EP3765400B1 patent drawingFigure 2A~2B
  • EP3765400B1 patent drawingFigure 2C~2D

AI summary

The invention provides a system for dispensing a beverage into a container comprising at least one dispenser unit. The dispenser unit comprises at least one fluid port and a moveable seal member which is configured to form a sealing barrier between at least a portion of the container and the dispenser head.