Reverse Vending Buffer Lift Layout for Compact Container Return

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Solution Overview

Problem

Existing container return systems for recycling waste objects, such as reverse vending machines, require substantial space and complexity, are prone to fraud, and face issues with residual liquids affecting operation and maintenance.

Innovation Solution

A system comprising a container return system with a buffer and carrier arrangement that utilizes vertical space for transportation, allowing independent operation and efficient compaction, with devaluation means early in the material stream to prevent fraud and minimize contact with operational parts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the container return system delivers containers to a backroom receiving facility with substantial storage capacity, then the system can handle large numbers of waste containers, but the space requirement and complexity increases

Engineering Contradiction:
Improvenumber of waste containers handledVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies vertical lifting to transport containers from the container return system to storage locations above, utilizing the vertical dimension rather than horizontal expansion. This allows the system to handle large numbers of containers while maintaining a compact footprint and reducing overall system complexity by eliminating the need for extensive horizontal conveying and rerouting infrastructure.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Volume of stationary object

If the container return system includes multiple means for sorting, crushing or compacting, conveying, rerouting, and storing, then the storage capacity increases, but the space requirement and complexity adds cost

Engineering Contradiction:
Improvestorage capacityVSAvoidsystem complexity
Core Design Contradiction:
Volume of stationary objectVSDevice complexity

Solution Approach 1:

The patent utilizes vertical space by lifting containers upward to storage locations above the container return system. This vertical stacking approach increases storage capacity without requiring additional horizontal space or complex conveying infrastructure, thereby reducing system complexity and cost.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The container return system itself is designed to perform multiple functions including sorting, crushing or compacting, and preparing containers for storage. By integrating these functions into a single system rather than using separate dedicated equipment for each function, the patent reduces the number of components needed and simplifies the overall system.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If the path of the received containers is protected from tampering to prevent fraud, then the reliability increases, but the complexity and cost increases

Engineering Contradiction:
Improvefraud preventionVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies devaluation means early in the material stream, before containers leave the container return system. This preliminary devaluation action ensures fraud prevention is established at the source, eliminating the need for complex continuous monitoring and protection mechanisms along the entire transport path, thereby reducing system complexity while maintaining reliability.

Inventive Principle:
Principle #10Preliminary action

4Reliability

If the system requires frequent cleaning to prevent residue from impairing operation, then the reliability maintains, but the maintenance effort increases

Engineering Contradiction:
Improveoperational reliabilityVSAvoidmaintenance effort
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The patent extracts containers from the container return system and transports them vertically to storage locations above, creating physical separation between the operational container return system and the storage area. This extraction reduces the number of contact points where residual liquids can accumulate, thereby reducing the frequency and effort required for cleaning maintenance while maintaining operational reliability.

Inventive Principle:
Principle #2Taking out (Extraction)

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 reduces footprint, enhances storage capacity, decreases complexity, and improves maintenance efficiency by utilizing vertical space and minimizing contact with residual liquids, while preventing fraud and reducing operational costs.

Implementation Method 1

a carrier arrangement adapted to receive the waste object from the container return system at a first location having a first elevation, and adapted to transport and deliver the waste object to a second location for storage or further transport, the second location having a second elevation which is vertically seen higher than the first elevation

Methodology Applied
Scientific EffectGravitational force: Gravitation

Data Source

PatentEP4182861B1System and process for collecting waste objects
Publication Date: 2026.03.25 TOMRA SYSTEMS
  • EP4182861B1 patent drawingFigure 1
  • EP4182861B1 patent drawingFigure 2
  • EP4182861B1 patent drawingFigure 3a~3c

AI summary

The present disclosure relates to a system (1) for collecting waste objects for recycling comprising a reverse vending machine, RVM (100), and a carrier arrangement (300; 350) adapted to receive a devaluated waste object (2) at a first location having a first elevation, and adapted to transport and deliver the devaluated waste object to a second location having a higher elevation than the first location and an inlet of the RVM (100). The system (1) further comprises a buffer arrangement adapted to receive the devaluated waste object (2) from the RVM (100) at a third location and to deliver the devaluated waste object (2) to the carrier arrangement (300; 350) at the first location. The carrier arrangement (300; 350) comprises at least one carrier adapted to move repeatedly between the first location and the second location. The disclosure further relates to a process of transporting and collecting waste objects (2).