Brewer Pressure and Vacuum Control for Multi-Volume Dispensing

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Solution Overview

Problem

Current brewing systems are limited to producing a single size of coffee, leading to inefficiencies such as wasted filter tape and user frustration due to interruptions during multi-dispense cycles, and inefficient filter tape usage.

Innovation Solution

A brewer system with a reservoir, steeping chamber, and filter tape, utilizing a pressure control system with a gas and vacuum pump to agitate brewing substances, an automated controller for precise brewing cycles, and a sensor system to optimize filter tape usage and dispensing, allowing for multiple brew cycles and efficient filter tape management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If multiple cups of coffee are brewed to achieve multivolume dispense, then beverage volume is improved, but customer satisfaction deteriorates due to interruptions and cooling

Engineering Contradiction:
Improvebeverage volumeVSAvoidcustomer satisfaction
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The system performs preliminary brewing of multiple cups of coffee and stores them in a reservoir before the customer receives the beverage. This allows the brewing process to be completed in advance, eliminating interruptions during dispensing and preventing cooling of the beverage while the customer waits.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If filter tape is collected on a spool to detect roll size, then tape collection is simplified, but filter tape waste increases due to larger volume being taken up

Engineering Contradiction:
Improvetape collectionVSAvoidfilter tape waste
Core Design Contradiction:
Ease of operationVSLoss of substance

Solution Approach 1:

The patent replaces the mechanical spool-based filter tape collection system with a sensor-based detection system. Optical or capacitive sensors monitor the filter tape usage and detect when the roll is depleted, eliminating the need for a large spool and reducing filter tape waste while maintaining ease of operation.

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

Enables the production of multiple brew sizes with reduced waste and user confusion, optimizing brew cycle time and filter tape efficiency, ensuring a consistent and efficient coffee dispensing process.

Implementation Method 1

The gas pump pressurizes the reservoir to drive gas through the mouth into the chamber to agitate the brewing substance and water

Methodology Applied
Scientific EffectPressure: Pressure Increase

Implementation Method 2

The vacuum pump removes gas from the reservoir to form at least a partial vacuum and pull brewed beverage into the reservoir through the mouth

Methodology Applied
Scientific EffectVacuum: Vacuum

Implementation Method 3

a filter tape positioned between the chamber and the reservoir. Brewing substance and water are added to the chamber to form a brewed beverage that passes through the filter tape and into the reservoir

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentUS10779675B2Brewer system, method and apparatus
Publication Date: 2020.09.22 BUNN COMMERCIAL LP
  • US10779675B2 patent drawing
  • US10779675B2 patent drawing
  • US10779675B2 patent drawing

AI summary

A brewer system includes a reservoir, a steeping chamber movable relative to the reservoir and positioned over a mouth of the reservoir, and a filter tape positioned between the chamber and the reservoir. Brewing substance and water are added to the chamber and can be controllably agitated using a controllable gas pump coupled to the reservoir to form a brewed beverage. The brewed beverage can be drawn through the filter tape and into the reservoir through the mouth under the influence of a controllable vacuum pump coupled to and controllably communicating with the reservoir.