Powder Brush Reservoir Valve for Spill-Free Cosmetic Application

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Solution Overview

Problem

Existing cosmetic powder brushes require separate containers, leading to inconvenience, potential spills, and bristle damage during cap application, as well as contamination and monetary loss due to separate handling.

Innovation Solution

A hand-held cosmetic powder brush with an integrated chamber and valve mechanism that allows selective powder application and bristle protection, featuring a snap-fit cap and rotatable actuator for controlled powder discharge and bristle shielding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a separate brush and powder container are used, then the brush can be carried independently, but the user must carry an additional container and risk spills

Engineering Contradiction:

Improveconvenience of carrying and applying powderVSAvoidnumber of separate items to carry

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent combines the brush and powder container into a single integrated applicator unit. The powder reservoir is positioned within the handle of the brush, allowing the user to carry one item instead of two separate containers, thereby improving convenience while reducing the number of items to manage.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The powder container is nested within the brush handle structure. The reservoir is housed inside the hollow handle, with the brush head extending from one end and the cap closure at the other, creating a nested configuration that consolidates multiple functions into a single compact unit.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Ease of operation

If powder is applied by dipping the brush into a separate container, then powder can be applied to the face, but powder may spill or create a mess

Engineering Contradiction:

Improveease of powder applicationVSAvoidpowder spill and mess

Core Design Contradiction:

Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The patent introduces a controlled dispensing mechanism as an intermediary between the powder reservoir and the brush bristles. A valve or aperture system regulates the flow of powder from the reservoir to the brush head, preventing uncontrolled spillage and allowing precise application without creating a mess.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The powder is pre-loaded into the reservoir before use. The user simply activates the dispensing mechanism to transfer a controlled amount of powder to the brush head, eliminating the need to dip the brush into a separate container and reducing the risk of spillage during the application process.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If a cap is applied over the bristle assembly, then the brush is protected when not in use, but the cap edge may engage and bend the bristles

Engineering Contradiction:

Improveprotection of brush when not in useVSAvoidbristle bending and damage

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent segments the brush structure into distinct functional zones. A protective sleeve or collar is positioned between the cap and the bristle assembly, creating a physical separation that prevents the cap edge from directly contacting and bending the bristles while still allowing the cap to secure the brush when not in use.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces a protective sleeve or collar as an intermediary element between the cap and the bristle assembly. This intermediate structure absorbs the mechanical stress when the cap is applied, preventing the cap edge from engaging and bending the bristles while still providing protection for the brush when not in use.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Adaptability or versatility

If the brush is carried apart from the powder container, then the brush can be used with different powders, but the brush may become contaminated with foreign substances

Engineering Contradiction:

Improveability to use with different powdersVSAvoidcontamination of brush

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent combines the brush and powder container into a single integrated unit with a sealed reservoir. This merging protects the brush from contamination by keeping it enclosed within the capped handle structure when not in use, while still allowing versatility by enabling the user to replace the powder reservoir or add different powders as needed.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS7775737B2Hand-held cosmetic powder applicator brush apparatus

Publication Date: 2010.08.17 ROBERTS CONTAINER CORP

AI summary

A hand-held cosmetic powder applicator brush apparatus for applying cosmetic powders such as facial powders and other powders to a user. The brush apparatus comprises a housing having a chamber for holding a powder to be dispensed and a valve mechanism for selectively opening and closing the chamber to a brush mounted on the housing so that powder in the housing may be dispensed to the bristles of the brush. The valve is operable by rotating an upper housing section such as a sleeve on the housing in a first direction to cause such opening. When the brush is not used, the upper housing section is rotated in the opposite direction to cause the valve mechanism to close. There is also a shield which extends around a portion of the brush to engage and protect the bristles when an outer cap is placed over the brush.