Spiral Branch Applicator for Even Cosmetic Dosing

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Solution Overview

Problem

Existing cosmetic product applicators fail to provide a precise, regular, and continuous application of liquid, viscous, or pasty products, often resulting in uneven distribution and potential skin irritation due to aggressive friction.

Innovation Solution

A cosmetic product applicator featuring a spiral-branch application tip that rotates freely around a main axis, allowing for precise product retention and release, and promoting a gentle, even application with a massage effect.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a smooth surface applicator is used (squeeze tube, tip applicator, or roll-on), then the application process is simple, but the product distribution is uneven and dosing is imprecise

Engineering Contradiction:

Improveapplication process simplicityVSAvoidproduct distribution uniformity

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The applicator surface is segmented into multiple protrusions distributed across the surface. Each protrusion acts as an independent product reservoir and application point, ensuring uniform distribution of cosmetic product across the application area while maintaining simple rolling motion for the user.

Inventive Principle:

Principle #1Segmentation

2Ease of operation

If a smooth surface applicator is used, then the application gesture is simple, but the quantity of product applied cannot be precisely controlled

Engineering Contradiction:

Improveapplication gesture simplicityVSAvoidproduct dosing precision

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The total product capacity is segmented into multiple discrete protrusions, each holding a controlled amount of product. This segmentation enables precise dosing while the user simply rolls the applicator once to distribute all protrusions across the target area.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The applicator is designed with more protrusions than strictly necessary for minimal coverage, ensuring that even with simple rolling motion, sufficient product is deposited across the entire application area without requiring precise control from the user.

Inventive Principle:

Principle #16Partial or excessive action

3Area of stationary object

If rubbing motion is used to spread product, then the applicator can cover the skin surface, but friction can be aggressive or irritating to the skin

Engineering Contradiction:

Improveskin coverage areaVSAvoidskin irritation from friction

Core Design Contradiction:

Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

Instead of rubbing the applicator back and forth across the skin (which creates friction), the invention inverts the approach by having the applicator roll in one direction with protrusions that deposit product as they pass over the skin. This eliminates aggressive friction while maintaining coverage.

Inventive Principle:

Principle #13The other way round (Inversion)

4Device complexity

If the applicator tip is not optimized for product retention, then the structure is simple, but the cosmetic product is not retained and released regularly during application

Engineering Contradiction:

Improveapplicator structure simplicityVSAvoidproduct retention and release consistency

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The applicator surface features localized protrusions with specific geometric characteristics (size, shape, distribution) optimized for product retention. These localized structures ensure consistent product holding and release throughout the rolling application process while maintaining overall structural simplicity.

Inventive Principle:

Principle #3Local quality

Data Source

PatentEP4353125B1Cosmetic product applicator comprising spiral branches and assembly comprising such an applicator

Publication Date: 2025.05.14 CHANEL PARFUMS BEAUTE SAS

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AI summary

The invention relates to a cosmetic product applicator comprising an application tip (3) and a gripping element (2) adapted to be grasped by a user, the application tip (3) having arms (31) that extend spirally around a main axis (A) such that they define a cavity (32) having a general shape of revolution about the main axis (A). The application tip (3) is mounted to rotate freely about the main axis (A) relative to the gripping element (2).