Container-Dispenser Coupling With Fluid-Tight Sealing for Cleaner Refilling

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Solution Overview

Problem

Existing refillable container systems face issues with material waste and soiling during refilling due to the need for cleaning the dispensing device and riser tube, which can be cumbersome and inefficient.

Innovation Solution

A system with a main body on the container and a connection element on the dispensing device, featuring complementary engagement means for a fluid-tight connection, which includes a sealing element to prevent soiling and reduce material use, using flexible or dimensionally stable containers with integrated riser tubes that do not require cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of stationary object

If a refillable container system with a dispensing device and riser tube is used, then the container can be reused and refilled, but the dispensing device and riser tube require cleaning to remove product residues, which increases complexity and effort

Engineering Contradiction:
Improvereusable container service lifeVSAvoidcleaning requirements
Core Design Contradiction:
Duration of action of stationary objectVSDevice complexity

Solution Approach 1:

The invention extracts the sealing function from the traditional dispensing device assembly by providing a separate sealing element on the container's main body. This allows the container to be sealed independently without requiring cleaning of the dispensing device or riser tube, as the sealing element creates a fluid-tight connection that prevents product residue accumulation in the connection area.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system is segmented into distinct functional components: the container with main body and sealing element, the connection element, and the dispensing device. This segmentation allows the sealing function to be isolated on the container side, eliminating the need to clean the dispensing device and riser tube for product changes.

Inventive Principle:
Principle #1Segmentation

2Loss of substance

If traditional refill packs made of thin film are used, then material usage is reduced, but the refilling process risks soiling the container and user due to product contact

Engineering Contradiction:
Improvematerial consumptionVSAvoidsoiling during refilling
Core Design Contradiction:
Loss of substanceVSObject-affected harmful factors

Solution Approach 1:

The sealing element acts as an intermediary between the container's main body and the connection element, creating a fluid-tight barrier that prevents product from escaping during the refilling process. This intermediary sealing mechanism eliminates the risk of soiling the container and user while maintaining the benefits of using lightweight refill packs.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If the sealing element is placed on the main body, then a new sealing element is used each time the container is replaced ensuring repeated sealing, but this increases material usage

Engineering Contradiction:
Improvesealing effect consistencyVSAvoidsealing element material
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The sealing element is designed as a disposable component that is discarded with the container after use. This approach ensures reliable sealing during each refilling cycle while the material cost is minimized because the sealing element is integrated into the disposable container rather than being a separate reusable component.

Inventive Principle:
Principle #34Discarding and recovering

4Object-affected harmful factors

If a fluid-tight connection is created between main body and connection element, then product can be dispensed without getting on the user, but this requires precise engagement means which increases manufacturing complexity

Engineering Contradiction:
Improveproduct contact with userVSAvoidengagement means manufacturing
Core Design Contradiction:
Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The sealing element is designed with specific geometric parameters (conical shape, diameter, angle) that enable it to create a fluid-tight connection through simple engagement between the main body and connection element. These parameter choices balance the need for reliable sealing with ease of manufacture, avoiding complex engagement mechanisms.

Inventive Principle:
Principle #35Parameter changes

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 material waste and minimizes soiling by ensuring a secure, fluid-tight connection that allows easy refilling without user contact with residues, saving resources and effort.

Implementation Method 1

The sealing element is preferably situated in such a way that it makes sealing contact with the connection element and the main body

Methodology Applied
Scientific EffectSealing contact:

Data Source

PatentUS20250269391A1System for connecting a container to a dispensing device, container, and dispensing device
Publication Date: 2025.08.28 ALPLA WERKE ALWIN LEHNER
  • US20250269391A1 patent drawing
  • US20250269391A1 patent drawing
  • US20250269391A1 patent drawing

AI summary

The invention relates to a system (100) for connecting a container (20) to a dispensing device (30). The invention also relates to a container (20) and to a receiving device (50). The system comprises a main body (21) situated on the container (20), and a connection element (31) situated on the dispensing device (30). The connection element (31) is in operative connection with, or can be brought into operative connection with, the main body (21). Mutually complementary engagement means (22, 32) are situated on the main body (21) and on the connection element (31) such that a fluid-tight connection is produced between the main body (21) and the connection element (31) when the engagement means (22, 32) mutually engage.