Pouch Reservoir Dome Design for Pressurized Dispenser Refilling

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Solution Overview

Problem

Existing refillable casings for pressurized products face challenges in easy manufacturing and efficient filling of pouch reservoirs, with current methods often leading to product deterioration and increased complexity.

Innovation Solution

A pouch reservoir design integrating the dome with a valve carrying cup and a pouch, featuring a base for tight fixation of the pouch neck and a bowl for the valve cup, along with an anti-collapse device, facilitates easier refilling and handling, allowing direct filling through a central hole and using standard components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the pouch is fixed to the valve using existing methods, then the valve can be secured, but the manufacturing process becomes complex and refilling is difficult

Engineering Contradiction:

Improveease of refillingVSAvoidcomplexity of assembly process

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The device is divided into separate functional modules: a dome component with integrated pouch fixation features, a valve carrying cup, and a pouch reservoir. This segmentation allows each component to be manufactured and prepared independently, then assembled through a simplified process where the dome is placed into the valve carrying cup, enabling easy refilling without complex disassembly.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The pouch is nested within the dome structure, which itself is nested within the valve carrying cup. This nested arrangement allows the pouch to be securely held while enabling access through the central refill hole, simplifying the refilling process and reducing overall assembly complexity.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Productivity

If a central refill hole is provided in the dome, then direct filling is enabled, but the structure becomes more complex

Engineering Contradiction:

Improvefilling efficiencyVSAvoidstructural complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The central refill hole is merged with the dome structure, combining the functions of product dispensing and refilling through a single structural feature. This integration enables direct filling operations without requiring separate access mechanisms, improving productivity while adding minimal structural complexity.

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If the pouch is tightly fixed to ensure secure containment, then product leakage is prevented, but emptying efficiency decreases

Engineering Contradiction:

Improveproduct containmentVSAvoidemptying efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The dome structure provides tight fixation at the pouch neck region to ensure secure containment, while the lower portion of the pouch maintains flexibility and openness. This localized differentiation of fixation strength allows reliable product containment during storage and transport, while enabling efficient emptying during dispensing operations.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS10513387B2Pouch reservoirs for casing used to dispense pressurized products and casings comprising same

Publication Date: 2019.12.24 INOSPRAY

AI summary

The invention relates to a pouch reservoir for a pressurized dispenser casing, including a dome, a valve-carrying cup and a pouch, such that the dome includes a base for receiving and tightly fixing a neck of the pouch, and a bowl for receiving the valve-carrying cup, the base and the bowl communicating via a central hole for filling the pouch and for discharging the product. The invention is especially applicable to refillable dispenser casings.