Sharp Paint Marker Pen With Bernoulli Ink Discharge

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Solution Overview

Problem

Existing marker pens using acrylic nibs are expensive, prone to damage, and inefficient due to ink flow issues caused by external atmospheric pressure and surface tension, leading to inconvenient use and contamination.

Innovation Solution

A sharp type paint marker pen utilizing a discharge structure based on the Bernoulli's principle, incorporating a polyester nib, and enabling easy ink discharge through a pressing motion, allowing for the use of a brush nib and high viscosity ink, and expanding product applications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If acrylic nibs are used to reinforce the nib structure, then the nib durability is improved, but the unit price increases and the writing feel deteriorates

Engineering Contradiction:

Improvenib durabilityVSAvoidunit price

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent applies this principle by using inexpensive polyester material for the nib instead of expensive acrylic material. The nib is designed as a replaceable component that can be easily replaced when worn, transforming a durable but expensive component into an affordable disposable or easily replaceable part. This resolves the contradiction by making the nib cost-effective while maintaining functional reliability through replaceability.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Productivity

If the back side of the marker pen is pressed downward to make ink flow out, then the ink supply is improved, but external atmospheric pressure and surface tension prevent ink discharge

Engineering Contradiction:

Improveink supplyVSAvoidatmospheric pressure and surface tension

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent applies this principle by making the ink tank movable relative to the nib assembly. Pressing the back of the marker pen moves the ink tank forward, dynamically changing the pressure distribution and overcoming atmospheric pressure and surface tension effects. This dynamic mechanism enables reliable ink discharge without being hindered by external atmospheric pressure and surface tension.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent applies this principle by utilizing pressure differential mechanisms within the ink delivery system. The pressing action creates a pressure gradient that drives ink from the ink tank through the nib, overcoming atmospheric pressure and surface tension barriers. This pneumatic-hydraulic approach resolves the contradiction by using controlled pressure to ensure consistent ink supply.

Inventive Principle:

Principle #29Pneumatics and hydraulics

3Difficulty of detecting and measuring

If the nib is pressed to check for ink leaks, then the leak detection is improved, but the parts become contaminated

Engineering Contradiction:

Improveink leak detectionVSAvoidcontamination

Core Design Contradiction:

Difficulty of detecting and measuringVSObject-generated harmful factors

Solution Approach 1:

The patent applies this principle by designing the nib assembly with self-indicating features that show ink level and potential leak conditions without requiring manual pressing. The system self-monitors its state and provides visual or tactile feedback to the user, eliminating the need to press the nib for leak detection and thus preventing contamination.

Inventive Principle:

Principle #25Self-service

4Adaptability or versatility

If a brush nib is applied to expand product lineup, then the application versatility is improved, but the nib structure becomes more complex

Engineering Contradiction:

Improveproduct lineup expansionVSAvoidnib structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies this principle by designing a universal nib assembly that can accommodate different nib types including brush nibs, fine point nibs, and other configurations. The standardized mounting interface and modular design allow the same basic structure to support multiple nib varieties, enabling product lineup expansion without proportionally increasing overall system complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

Enhances operational efficiency, reduces material costs, and facilitates convenient use by ensuring consistent ink flow without contamination, enabling applications in various industries such as manicure.

Implementation Method 1

an ink is allowed to be easily discharged through the Bernoulli's principle in accordance with a pressing motion of an ink tank

Methodology Applied

Scientific EffectBernoulli's principle: Bernoulli Effect

Data Source

PatentUS20250303778A1Sharp type paint marker pen

Publication Date: 2025.10.02 MUNGYO ONS CORP

AI summary

The present disclosure relates to a sharp type paint marker pen in which the convenient use thereof is provided because an ink is easily discharged through the Bernoulli's principle in accordance with a pressing action of an ink tank, the operation efficiency thereof is increased, a relatively inexpensive polyester nib is also able to be used instead of an expensive acrylic nib, a product lineup is able to be expanded using a watercolor marker or the like when a brush nib is applied, a high viscosity ink is also able to be applied, and it is also able to be expanded into other industries such as manicure.