Disposable Paint Container with Venting Groove

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Solution Overview

Problem

Current packaging systems for two-component or multi-component products used in painting or spraying are cumbersome, costly, and prone to errors due to individual component handling, storage, and mixing, leading to inefficiencies and material loss.

Innovation Solution

A disposable container with a projecting bottom part and internal groove for improved sealing and stability, equipped with a rotary valve for air control and a translucent design for content visibility, allowing for easy mixing and connection to a spray gun with a filter for efficient liquid transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If individual components are packaged separately in airtight containers, then product stability and prevention of clumping are improved, but packaging bulkiness and storage complexity increase

Engineering Contradiction:
Improveproduct stabilityVSAvoidpackaging complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple component containers into a single integrated packaging unit. The container includes a body for holding first components and an internal tube for holding second components, both sealed together in one package. This merging approach maintains the stability benefits of separate component packaging while eliminating the complexity of handling multiple separate containers.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent implements nesting by placing the internal tube containing second components inside the container body that holds first components. The internal tube is positioned within the body cavity, allowing compact integration of multiple component storage spaces. This nested structure reduces overall packaging bulkiness while maintaining separate airtight environments for each component type.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of operation

If multiple transfer operations are performed during preparation, then components can be transferred to spray container, but risks of spillage and loss increase

Engineering Contradiction:
Improvecomponent transferVSAvoidspillage risk
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent merges the storage and transfer functions into a single integrated system. The container body and internal tube are both sealed within the same package and can be emptied directly into the spray container simultaneously or sequentially without intermediate transfers. This eliminates multiple handling operations and associated spillage risks.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent prepares components in advance by pre-packaging them in the integrated container system with appropriate sealing. The container is designed to be opened and emptied in a controlled manner, with the internal tube and body both capable of complete emptying. This preliminary preparation reduces the need for multiple transfer operations during actual use.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If operator manually doses components during preparation, then mixing can be performed, but dosing accuracy and product effectiveness are compromised

Engineering Contradiction:
Improvemanual dosingVSAvoiddosing accuracy
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The patent performs dosing in advance during the manufacturing stage. Components are precisely measured and packaged in predetermined ratios within the container body and internal tube. The packaging is designed to deliver the correct amounts automatically when emptied, eliminating the need for operator dosing and ensuring consistent accuracy.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The container system is designed to self-regulate the dosing process. The internal tube and body are configured with specific volumes and opening mechanisms that automatically provide the correct component ratios. When the container is emptied into the spray container, the system self-doses without requiring operator measurement or calculation.

Inventive Principle:
Principle #25Self-service

4Duration of action of stationary object

If partially emptied containers are stored after mixing, then remaining components can be preserved, but storage cumbersome and air exposure increases

Engineering Contradiction:
Improvecomponent preservationVSAvoidstorage convenience
Core Design Contradiction:
Duration of action of stationary objectVSEase of operation

Solution Approach 1:

The patent combines multiple component storage spaces into a single integrated container that can be partially used and then sealed. The container body and internal tube are both accessible and can be emptied at different rates, allowing the container to be sealed after partial use while maintaining separate airtight environments for remaining components. This is more convenient than storing multiple separate partially-empty containers.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent uses sealed membranes and flexible closing elements to preserve remaining components. The container is equipped with closing means that can seal the opening after partial emptying, creating an airtight barrier. The internal tube and body can both be sealed independently or together, preventing air exposure and deterioration of remaining components while maintaining compact storage.

Inventive Principle:
Principle #30Flexible shells and thin films

5Productivity

If disposable container is used for spraying, then preparation time is reduced, but container deformation and sealing reliability may increase

Engineering Contradiction:
Improvepreparation speedVSAvoidsealing reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent incorporates reinforcement elements and structural design features beforehand to prevent deformation during use. The container body and internal tube are designed with appropriate wall thicknesses and structural support to withstand the pressures and handling associated with disposable use. This pre-engineered robustness maintains sealing reliability despite the single-use nature of the container.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The patent combines multiple sealing mechanisms within the integrated container structure. The closing means include sealing elements that engage with both the container body and internal tube, creating multiple sealed barriers. This combined sealing approach compensates for the reduced durability of disposable materials, maintaining reliability throughout the container's service life.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3573767B1Disposable paint container comprising a closable vent device
Publication Date: 2021.05.05 CAMILLERI MICHEL
  • EP3573767B1 patent drawingFigure 1~2
  • EP3573767B1 patent drawingFigure 3~5
  • EP3573767B1 patent drawingFigure 6~8

AI summary

The invention concerns a disposable container (1), intended to contain at least one component for spraying and having a bottom (3) with an inner face on the inside of said container and an outer face (3a) on the outside of said container (1), at least one peripheral side wall (2) extending from the inner face of the bottom (3) to an open connection end, spaced apart from and facing said bottom (3), characterised in that the bottom (3) has at least one part (10a) projecting out of the outer face (3a), said part (10a) delimiting, on the inside, a groove (10) opening into the inner volume of said container (1) at the inner face.