Concave Sifter Insert for Controlled Cosmetic Powder Dispensing
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Solution Overview
Problem
Existing cosmetic powder packages lack user control over the amount of powder deposited on the sifter surface, with powder often falling back into the reservoir, leading to inconvenience and mess.
Innovation Solution
A sifter insert with a central concave dish and slotted channel around the perimeter is mounted in the neck of the jar below the cap, allowing controlled powder flow from the reservoir to the dish for easy access and return to the reservoir.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a flat sifter surface with holes is used, then powder can flow through to the user, but the user has limited control over the amount of powder deposited and powder tends to fall back into the reservoir
Solution Approach 1:
The sifter surface is changed from flat to concave curved, creating a dish-shaped depression that holds powder. This curvature allows powder to be contained in the recessed area, preventing it from falling back through the holes while still allowing controlled dispensing to the user.
2Ease of operation
If the sifter is removed from the neck, then the user can access powder more freely, but the process becomes inconvenient and messy
Solution Approach 1:
The sifter is designed to automatically dispense powder when the jar is inverted, without requiring user removal or manual intervention. The powder flows through the holes in the concave surface and can be accessed by the user while the sifter remains in place, eliminating the need for removal and reinsertion steps.
3Ease of operation
If powder is dumped into the cap for access, then the user can retrieve powder with a brush or puff, but unused powder must be poured back into the jar which is messy
Solution Approach 1:
The sifter extracts and holds a small quantity of powder in its concave dish portion, separating it from the main reservoir. This allows the user to access only the needed amount directly from the sifter surface, eliminating the need to dump and pour powder between the jar and cap, thus preventing mess.
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
Provides convenient and controlled access to the powder, reducing mess and ensuring consistent availability of product without the need for removing the sifter or pouring powder into the cap.
Implementation Method 1
permit the flow of powder from the product reservoir into the channel and subsequently through the clearance when the jar is inverted
Data Source
AI summary
A sifter insert for the neck of a powder jar is secured above the product reservoir and below the cap of the jar. The insert has a central concave dish for supporting a quantity of powder product, and a channel around the perimeter of the dish. The insert is secured in the neck such that the dish is spaced below the bottom of the cap. Slots in the channel permit the flow of powder from the reservoir into the channel when the jar is inverted with the cap closed, and from the channel onto the dish when the inverted jar is righted. Powder in the dish is accessed by the user upon removal of the cap. The cap is then closed and the jar shaken to return excess powder from the dish to the reservoir through the slots in the channel.