Cosmetic Pipette Ball Insert with Radial Channels
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Solution Overview
Problem
Cosmetic product dispensing pipettes experience intermittent or blocked flow due to the ball moving upward during suction and blocking the duct, and during application, the flow from the duct to the skin is obstructed by the ball at the outlet, leading to unsatisfactory continuous dispensing.
Innovation Solution
Incorporating longitudinal channels radially withdrawn away from the ball in the receiving insert to ensure continuous fluid communication between the tubular duct and the outside of the pipette, allowing the cosmetic product to flow around the ball, even when it moves, and featuring a converging channel shape to maintain product flow and secure the ball effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the ball is used to dispense cosmetic product by rotation, then the cosmetic product can be applied to the skin, but the ball blocks the duct during suction and prevents continuous flow
Solution Approach 1:
The receiving insert is segmented into multiple functional zones: an upper region with longitudinal channels for product flow and a lower region for ball support. This segmentation allows the ball to be supported in the lower region while product flows through the channels in the upper region, preventing blockage and ensuring continuous flow during both suction and dispensing operations.
2Adaptability or versatility
If the ball moves upward during suction, then the ball follows the product flow, but the upward movement blocks the duct and prevents product passage
Solution Approach 1:
The longitudinal channels in the upper region act as intermediaries that guide the cosmetic product around the ball. These channels provide an alternative pathway for the product to flow from the reservoir to the duct, bypassing the ball entirely. This allows the ball to move freely upward during suction while the product continues to flow continuously through the channels.
3Ease of operation
If the ball is positioned at the outlet of the duct, then the ball can rotate to dispense product, but the flow from the duct to the skin is obstructed
Solution Approach 1:
The invention introduces a radial dimension to the product flow path by creating longitudinal channels that extend from the upper region of the receiving insert radially away from the ball. This dimensional change allows the product to flow in a radial direction around the ball rather than being blocked by it, enabling continuous dispensing while the ball rotates for application to the skin.
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
Ensures continuous flow of the cosmetic product between the reservoir and the pipette during suction and application, preventing blockages and ensuring uniform distribution, while minimizing leakage and maintaining structural integrity with a reduced number of components.
Implementation Method 1
the ball being designed to come into contact with the skin of a user and to dispense the cosmetic product by rotation of the ball
Implementation Method 2
the receiving insert defines at least one longitudinal channel radially withdrawn away from the ball into the inner surface so as to allow the flow of the cosmetic product between the lower end of the dispensing pipette and the tubular duct around the ball
Implementation Method 3
When the pipette suctions the cosmetic product from the reservoir, the ball tends to follow the flow of the cosmetic product and moves upward
Data Source
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AI summary
The dispensing pipette comprises: - a tubular dispensing duct for dispensing a cosmetic product defining a longitudinal passage, the tubular duct having an upper end and a lower end (54), the lower end (54) defining a receiving insert (58) for receiving a ball (34), and - a ball (34) rotatably mounted in the receiving insert (58), the ball (34) being designed to dispense the cosmetic product by rotation of the ball (34). The receiving insert (58) has an inner surface (60) facing the ball (34), the receiving insert (58) defining at least one longitudinal channel (70) radially withdrawn away from the ball (34) into the inner surface (60) so as to allow the flow of the cosmetic product around the ball (34).