Hairbrush Applicator With Rotating Collar for Dry Shampoo Control

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Solution Overview

Problem

Existing haircare products, such as dry shampoo applicators, often result in excessive application, waste, and unwanted spray byproducts, and there is a need for targeted, waste-reducing, travel-friendly applicators that do not use flammable liquids.

Innovation Solution

A hairbrush applicator configuration with a bristle assembly, base tray, and a rotating collar that controls material flow through adjustable flow holes, allowing for targeted application and even distribution of products like dry shampoo without aerosols.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If aerosol sprays are used to apply dry shampoo, then product application is convenient, but excessive product is applied causing waste and unwanted spray byproducts

Engineering Contradiction:
Improveconvenience of product applicationVSAvoidexcessive product application and waste
Core Design Contradiction:
Ease of operationVSLoss of substance

Solution Approach 1:

The applicator divides the product delivery system into separate functional components: a storage container for product, a dispensing mechanism with controlled openings, and a bristle assembly for application. This segmentation allows precise control over product flow to the bristles, preventing excessive application while maintaining ease of use.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bristle assembly serves as an intermediary between the stored product and the hair. Product flows from the container through controlled openings to the bristles, which then distribute it evenly through the hair. This intermediary mechanism prevents direct spray contact with the scalp and reduces waste by controlling the exact amount of product applied.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If aerosol sprays are used for product application, then quick application is achieved, but harmful byproducts are generated and scalp contact causes itchiness and clogged pores

Engineering Contradiction:
Improvespeed of product applicationVSAvoidscalp itchiness, clogged pores, and unwanted spray
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The harmful aerosol spray mechanism is completely removed from the system. Instead, a solid bristle assembly with controlled product openings is used. This extraction of the harmful element eliminates spray byproducts and direct scalp contact while maintaining application speed through the bristle's natural distribution capability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The applicator uses a disposable bristle assembly that can be easily replaced. This eliminates the need for complex, reusable aerosol systems and their associated harmful byproducts. The simple, replaceable bristle assembly provides a clean, safe application method without the harmful effects of aerosols.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Quantity of substance

If traditional dry shampoo applicators are used, then product can be applied, but proper application control is not achieved resulting in too much product

Engineering Contradiction:
Improveproduct application amountVSAvoidcontrol over product distribution
Core Design Contradiction:
Quantity of substanceVSManufacturing precision

Solution Approach 1:

The applicator incorporates a rotatable collar with multiple positions that dynamically adjusts the alignment between product openings and bristle channels. This dynamic adjustment mechanism allows precise control over the amount of product reaching the bristles, enabling users to optimize application quantity for different hair types and needs.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the parameter of product flow control by using a rotatable collar with multiple angular positions. Each position corresponds to a different alignment between product openings and bristle channels, allowing precise modulation of product quantity. This parameter change mechanism provides fine-grained control over application amount.

Inventive Principle:
Principle #35Parameter changes

4Manufacturing precision

If a hairbrush applicator with rotating collar is used, then controlled material flow is achieved, but device complexity increases

Engineering Contradiction:
Improvecontrol over material flowVSAvoidstructure with rotating collar and multiple components
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The applicator merges multiple functions into integrated components: the collar combines rotation control with positioning, the bristle assembly combines product reception with hair application, and the handle integrates storage with the dispensing mechanism. This merging reduces the number of separate parts while maintaining precise control over material flow.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The handle serves multiple functions: it provides structural support, contains the product storage container, houses the rotatable collar mechanism, and acts as the application tool. This multi-functionality reduces overall device complexity by eliminating the need for separate components for each function.

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

Data Source

PatentEP4609754A1Hairbrush applicator and hairbrush dispenser configurations
Publication Date: 2025.09.03 KIM MICHELLE
  • EP4609754A1 patent drawingFigure 1A~1B
  • EP4609754A1 patent drawingFigure 1C
  • EP4609754A1 patent drawingFigure 2A

AI summary

Configurations are provided for hairbrush applicators and personal care devices, including dispensing and application of material to a user, such as powders and dry shampoo. According to embodiments, a hairbrush applicator includes a bristle assembly having bristles and a base tray, the base tray including at least one channel opening. The hairbrush applicator includes an applicator base configured to receive the bristle assembly and at least one flow hole to provide material to the bristles. The applicator base includes a rim with a guide channel, a collar is configured to engage with the rim and the guide channel. The collar can rotate relative to the applicator base to provide at least one position to dispense material to the bristle assembly. The applicator base may be configured to engage with a storage container configured to store material dispensed by the applicator which may include a disposable cartridge.