Eyelash Shaping Implements for Consistent 3D Curling Effects

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Solution Overview

Problem

Existing eyelash curlers provide inconsistent results across the three-dimensional shape of eyelashes and lack the ability to vary textures or styles.

Innovation Solution

Eyelash shaping implements featuring crimping tools with various engagement features such as spherical protuberances, textured surfaces, and undulating surfaces, allowing for customizable curling effects and uniform application.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a flat surface is used to engage eyelashes, then the structure is simple, but the curling effect is inconsistent across the three-dimensional shape of eyelashes

Engineering Contradiction:

Improvestructure simplicityVSAvoidcurling effect consistency

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The patent applies local quality by providing shaping elements with different surface characteristics (flat, textured, undulating, spherical protuberances) at different locations on the engagement feature. This allows each local area to address specific portions of the three-dimensional eyelash structure, achieving consistent curling effects across the entire lash while maintaining overall structural simplicity through modular design.

Inventive Principle:

Principle #3Local quality

2Ease of operation

If a flat surface is used for curling, then the device is simple to operate, but it is limited to flat curl enhancement only

Engineering Contradiction:

Improveoperational simplicityVSAvoidcurl style variety

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent implements universality by incorporating multiple types of shaping elements (flat surfaces, textured surfaces, undulating surfaces, spherical protuberances) on a single engagement feature assembly. This allows the device to perform multiple curling functions (flat curls, textured curls, undulating curls) while maintaining ease of operation through a unified tool that requires no assembly changes or complex adjustments.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Device complexity

If existing eyelash curlers are used, then the device structure is simple, but they do not allow for varying textures or styles

Engineering Contradiction:

Improvedevice structureVSAvoidtexture and style variation

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent applies segmentation by dividing the engagement feature into multiple distinct shaping elements, each with specific surface characteristics (flat, textured, undulating, spherical). This segmented approach enables texture and style variation while keeping the overall device structure relatively simple, as the segmented elements are integrated into a single replaceable or adjustable module rather than requiring multiple separate tools.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12446673B2Eyelash shaping implements

Publication Date: 2025.10.21 CHUNG PUI YAN

AI summary

An eyelash shaping implement includes: a curved main body; a tool engagement element; and a set of shaping elements arranged along a surface of the curved main body. An eyelash curler insert includes: a body; and multiple shaping elements protruding from the body. An eyelash shaper tool includes: a movable section; a fixed section; and a shaping implement having: a body coupled to the movable section; and at least one shaping element protruding from the body. Shaping elements include spherical protuberances, undulating linear protuberances, and tapered surfaces.