Fluid Container Outlet Mechanism with Buoyant Barrier

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Solution Overview

Problem

Conventional fluid containers require the removal of external seals before transferring fluids to a receiving container, leading to potential spillage and inability to vent excess pressure, which can occur due to changes in altitude or temperature.

Innovation Solution

The outlet structure assembly includes a conduit with an interior barrier that prevents fluid from spilling and allows for controlled release, featuring a buoyant interior barrier that moves away from the extension, enabling engagement with a fluid ejection device without prior removal and venting excess pressure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If external seals are removed before transferring fluid, then the receiving container can be engaged, but fluid spillage occurs during transfer

Engineering Contradiction:
Improveengagement of receiving containerVSAvoidfluid spillage
Core Design Contradiction:
Ease of operationVSLoss of substance

Solution Approach 1:

The internal barrier is positioned in advance within the conduit to automatically block the fluid outlet. This preliminary positioning prevents fluid spillage before the transfer process begins, eliminating the need to remove external seals beforehand while maintaining sealing integrity during engagement.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The internal barrier acts as an intermediary element between the fluid reservoir and the outlet. It mediates fluid flow by automatically blocking the outlet when the receiving container is engaged, preventing direct contact between fluid and external environment, thus avoiding spillage without requiring premature seal removal.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of substance

If external seals are kept on during transfer, then fluid spillage is prevented, but excess pressure cannot be vented

Engineering Contradiction:
Improvefluid spillage preventionVSAvoidexcess pressure buildup
Core Design Contradiction:
Loss of substanceVSStress or pressure

Solution Approach 1:

The internal barrier is designed as a dynamic element that automatically adjusts its position based on pressure conditions. When excess pressure builds up, the barrier moves to allow pressure equalization while maintaining fluid containment. This dynamic behavior simultaneously prevents fluid spillage and enables pressure venting without requiring seal removal.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The internal barrier performs dual functions automatically: it blocks fluid outlet to prevent spillage while simultaneously providing pressure relief pathways when pressure exceeds thresholds. This self-service mechanism eliminates the need for manual intervention to balance pressure, maintaining sealing integrity while preventing pressure buildup.

Inventive Principle:
Principle #25Self-service

3Productivity

If internal barriers are removed before engagement, then fluid transfer is enabled, but the process becomes complex and time-consuming

Engineering Contradiction:
Improvefluid transfer efficiencyVSAvoidbarrier removal process
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The functionality of the internal barrier is extracted and integrated directly into the conduit structure. The barrier becomes an inherent part of the fluid delivery system rather than a separate component requiring removal. This integration simplifies the engagement process while maintaining the barrier's fluid control function throughout the transfer operation.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The internal barrier automatically performs its sealing and pressure regulation functions without requiring manual removal or intervention. It self-adjusts during the engagement process, enabling fluid transfer to proceed efficiently while the barrier remains in place, thus reducing both device complexity and operational steps.

Inventive Principle:
Principle #25Self-service

4Productivity

If the conduit is open for fluid transfer, then fluid can flow freely, but uncontrolled spillage occurs

Engineering Contradiction:
Improvefluid transfer rateVSAvoiduncontrolled spillage
Core Design Contradiction:
ProductivityVSLoss of substance

Solution Approach 1:

The internal barrier provides dynamic control of the fluid outlet within the conduit. It automatically adjusts its blocking position based on engagement status and pressure conditions, allowing controlled fluid flow during transfer while preventing uncontrolled spillage. This dynamic regulation maintains high transfer efficiency without sacrificing control.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The internal barrier serves as an intermediary control element within the conduit that mediates between the open fluid pathway and spillage prevention. It selectively blocks or allows fluid passage based on operational conditions, enabling free flow during proper engagement while automatically preventing spillage without restricting overall transfer productivity.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

This design prevents fluid spillage during transfer and allows for pressure equalization, ensuring efficient fluid transfer and operation of fluid ejection devices without the need to remove internal barriers, while accommodating changes in pressure conditions.

Implementation Method 1

The interior barrier can be buoyant as to cause the interior barrier to travel away from the extension and not block a mouth of the extension

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Data Source

PatentEP3684619B1Output mechanism for a fluid container
Publication Date: 2024.05.15 HEWLETT PACKARD DEVELOPMENT COMPANY LP
  • EP3684619B1 patent drawingFigure 1A~1B
  • EP3684619B1 patent drawingFigure 1C
  • EP3684619B1 patent drawingFigure 2A~2C

AI summary

A fluid container that includes body that provides a fluid reservoir. Additionally, the fluid container can also include an outlet structure. The outlet structure can include a conduit that extends from an outlet of the fluid container to the fluid reservoir. Moreover, the fluid container can include an outlet barrier and an interior barrier. The outlet barrier can be positioned within the conduit of the outlet structure in proximity to the outlet of the fluid container. Additionally, the outlet barrier can be structured to receive an inlet extension of a container device. The interior barrier can be positioned within the conduit of the outlet structure in proximity to the fluid reservoir. Additionally, the interior barrier can be displaceable relative to the outlet structure by the inlet extension.