Solid marking material melting applicator wand

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Solution Overview

Problem

Solid marking materials like crayons and oil pastels do not transfer smoothly to various surfaces due to their pigmented wax composition, resulting in uneven and non-uniform color transfer, especially when applied to materials such as paper, plastic, glass, and treated surfaces.

Innovation Solution

A device, referred to as the solid marking material melting applicator wand, which melts wax-based solid marking materials at a controlled temperature and dispenses the melted wax using interchangeable tips, ensuring even application on diverse surfaces by utilizing a heating element, thermoregulation, and ergonomic design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If solid marking materials (crayons, oil pastels) are used directly to color surfaces, then the material can be applied easily, but the color transfer is uneven and non-uniform

Engineering Contradiction:
Improveease of applicationVSAvoiduniformity of color transfer
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The patent changes the physical state parameter of the marking material from solid to liquid by heating it to a controlled temperature range (40-80°C). This phase change enables the wax to melt and transfer evenly onto the receiving medium, resolving the contradiction between ease of application and uniformity of color transfer.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention utilizes the phase transition of the wax material from solid to liquid through controlled heating. The melting process allows the pigmented wax to become fluid enough to transfer smoothly onto various surfaces, eliminating the uneven sticking problem of solid marking materials.

Inventive Principle:
Principle #36Phase transitions

2Manufacturing precision

If the solid marking material is heated to melt it, then the color transfer becomes smooth and even, but the material may overheat and burn

Engineering Contradiction:
Improveuniformity of color transferVSAvoidoverheating and burning
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The patent incorporates a temperature sensor and microprocessor that continuously monitor and regulate the heating process. This feedback mechanism adjusts the heating power in real-time to maintain the wax within the optimal melting range (40-80°C), preventing overheating and burning while ensuring uniform color transfer.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The invention replaces uncontrolled mechanical heating with an electronically controlled thermal system. The microprocessor and temperature sensor create a closed-loop control system that precisely manages heat application, eliminating the harmful effects of overheating while maintaining the beneficial melting effect.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Manufacturing precision

If a heating element is added to melt the marking material, then the color application becomes uniform, but the device complexity increases

Engineering Contradiction:
Improveuniformity of color transferVSAvoiddevice structure
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent integrates multiple functions into a single handheld device: the heating element melts the marking material, the temperature sensor monitors the process, the microprocessor controls the heating, and the applicator tip delivers the melted wax. This multi-functional integration achieves uniform color transfer while minimizing the number of separate components needed.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention nests several functional components within a compact handheld structure. The heating element is embedded in the handle, the temperature sensor is integrated into the heating assembly, and the applicator tip is positioned within the same housing. This nested arrangement reduces overall device complexity by consolidating multiple functions into a single unified tool.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 applicator wand provides smooth, uniform color transfer and vivid markings on various surfaces by melting the solid materials into a fluid medium, allowing for controlled application and blending of colors, enhancing artistic expression and ease of use.

Implementation Method 1

a heating element configured to heat the solid marking material to a melting temperature

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

melts the solid marking materials at a controlled temperature

Methodology Applied
Scientific EffectMelting: Melting

Data Source

PatentUS10688523B2Solid marking material melting applicator wand
Publication Date: 2020.06.23 CRAYOLA LLC
  • US10688523B2 patent drawing
  • US10688523B2 patent drawing
  • US10688523B2 patent drawing

AI summary

Aspects herein relate to an applicator wand that is configured to melt a solid marking material and apply the melted marking material onto a receiving medium. Aspects of the applicator wand include a heating and melting element enclosed within an external casing, a receiving compartment configured to receive one or more solid marking materials, and an applicator tip for applying the melted marking material onto a receiving medium to create a design, drawing, picture, sketch, and the like on the receiving medium.