Removable Refill Drawer for Clean Multi-Container Beverage Dispensing

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Solution Overview

Problem

Existing beverage dispensers require time-consuming and error-prone refilling of multiple containers, which can lead to incorrect placement and cross-contamination of ingredients, affecting beverage quality.

Innovation Solution

A beverage dispenser design featuring a removable sub-housing that allows all containers to be refilled in one movement, with a top configuration that prevents powder escape and cross-contamination, and rotatable discharge ports that ensure clean refilling and correct placement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple containers are refilled individually in existing beverage dispensers, then each container can be refilled, but the refilling operation becomes time-consuming and error-prone

Engineering Contradiction:
Improverefilling speedVSAvoidrefilling time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent combines multiple container refilling operations into a single unified action. The drawer assembly holds multiple containers (at least two) and can be removed from the housing as one unit, allowing the operator to refill all containers simultaneously in a single operation rather than refilling each container individually. This merging of operations directly addresses the contradiction by improving productivity while reducing the time lost to repeated access operations.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If containers are refilled individually, then refilling can be performed, but operator errors in placement and potential cross-contamination occur

Engineering Contradiction:
Improverefilling simplicityVSAvoidcorrect placement accuracy
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

By combining multiple containers into a single drawer assembly that is removed and refilled as one unit, the patent eliminates the sequential handling that leads to placement errors. The operator handles the entire assembly rather than individual containers, reducing the opportunity for mistakes.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The drawer assembly serves as an intermediary between the housing and the containers. It provides a stable, organized platform that holds containers in predetermined positions with correct orientation. This intermediary structure ensures that when containers are placed in the drawer, they are automatically positioned correctly, and the drawer's design features (such as the top closing over containers) prevent cross-contamination during the refilling process.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Object-affected harmful factors

If the sub-housing top is configured to close access to container tops, then cross-contamination is prevented, but container access during operation is restricted

Engineering Contradiction:
Improvecross-contamination preventionVSAvoidcontainer accessibility
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The patent extracts the refilling operation from the main housing by using a removable drawer assembly. The drawer can be completely removed from the housing, taking all containers with it. This allows the operator to access and refill containers in an open environment away from the housing, preventing powder escape and cross-contamination during refilling, while maintaining full accessibility during the refilling operation itself.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system dynamically changes its state: during normal operation, the drawer is inserted and container tops are closed off; during refilling, the drawer is removed and container tops are accessible. This dynamic configuration allows the system to prevent cross-contamination during operation while providing full access during the refilling phase.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP2736388B1Beverage dispenser with improved refilling operation
Publication Date: 2015.03.04 NESTEC SA
  • EP2736388B1 patent drawingFigure 1
  • EP2736388B1 patent drawingFigure 2a
  • EP2736388B1 patent drawingFigure 2b~3

AI summary

The invention concerns a beverage dispenser comprising : - a housing (1), - at least two refillable containers (2) for storing bulk beverage ingredients, - at least a beverage preparation unit (3) operatively linked to the containers for preparing a beverage from at least one of the stored bulk beverage ingredients, - a sub-housing (4) in which the containers are placed, said sub-housing being removable from the housing.