Light-Blocking Liquid Container With Contrast Adapter for Leak Detection

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Solution Overview

Problem

Liquid storage containers are susceptible to deterioration from light exposure and leakage, which can cause staining and hinder smooth insertion of the liquid introduction portion into the adapter, necessitating a solution that prevents deterioration and easily detects liquid attachment.

Innovation Solution

The liquid storage container features a storage-portion outer shell that does not allow light to pass through and an adapter outer shell with a color difference from the liquid, ensuring easy detection of liquid attachment and preventing deterioration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the storage-portion outer shell is made transparent or light-colored to allow visual inspection of liquid level, then ease of operation is improved, but the liquid deteriorates when exposed to light

Engineering Contradiction:
Improvevisual inspection of liquid levelVSAvoidliquid stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The storage-portion outer shell is designed with a light-blocking color (black or dark color) to prevent light from reaching the liquid, thereby preventing liquid deterioration while maintaining visual inspection capability through the color-coded design

Inventive Principle:
Principle #32Color changes

2Shape

If the adapter outer shell is made with the same color as the liquid to reduce visual noise, then aesthetic appearance is improved, but the user cannot easily notice when liquid leaks and attaches to the adapter

Engineering Contradiction:
Improveaesthetic appearanceVSAvoidliquid leakage detection
Core Design Contradiction:
ShapeVSDifficulty of detecting and measuring

Solution Approach 1:

The adapter outer shell is designed with a color that has a significant color difference from the liquid color, enabling the user to easily detect when liquid leaks and attaches to the adapter, while the overall aesthetic appearance is maintained through coordinated color schemes

Inventive Principle:
Principle #32Color changes

3Loss of information

If the storage-portion outer shell and adapter outer shell use different color schemes to provide information, then information transmission is improved, but manufacturing complexity increases

Engineering Contradiction:
Improveliquid color identificationVSAvoidmanufacturing process
Core Design Contradiction:
Loss of informationVSEase of manufacture

Solution Approach 1:

Different parts of the liquid storage container are assigned different color functions: the storage-portion outer shell uses light-blocking colors to protect the liquid, while the adapter outer shell uses contrasting colors to enable leakage detection, with each color serving a specific functional purpose that simplifies the overall manufacturing approach

Inventive Principle:
Principle #3Local quality

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 solution effectively prevents liquid deterioration and facilitates easy detection of liquid attachment, enhancing user convenience and maintaining the functionality of the liquid storage system.

Implementation Method 1

the storage-portion outer shell has a first-type color in a degree that does not allow light to pass through the storage-portion outer shell

Methodology Applied
Scientific EffectLight blocking: Absorption (EM radiation)

Implementation Method 2

the adapter outer shell has a second-type color having a color difference with respect to a color of the liquid larger than or equal to a threshold

Methodology Applied
Scientific EffectColor difference: Delta-E Effect

Data Source

PatentUS12502891B2Liquid storage container and liquid storage container set
Publication Date: 2025.12.23 SEIKO EPSON CORP
  • US12502891B2 patent drawing
  • US12502891B2 patent drawing
  • US12502891B2 patent drawing

AI summary

A liquid storage container includes: a liquid storage portion including a storage-portion outer shell for storing liquid inside; and an adapter including an adapter outer shell and an insertion opening that is formed in the adapter outer shell and into which a liquid introduction portion of a container attachment portion is inserted, the storage-portion outer shell has a first-type color in a degree that does not allow light to pass through the storage-portion outer shell, and the adapter outer shell has a second-type color having a color difference with respect to a color of the liquid larger than or equal to a threshold.