Dual-Component Lipstick with Deformable Reservoir for Selective Application
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Solution Overview
Problem
Conventional lipsticks are limited to applying a single component, and existing solutions for multi-component application, such as dual-color lipsticks, lack the flexibility for users to selectively apply one or both components based on their preference.
Innovation Solution
A device with a body made of a first component featuring an opening that allows a second component to be transported and applied, utilizing a deformable reservoir and pressure mechanism to control the application of either or both components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a lipstick lead is made from two components (one on outside, one on inside), then the user can apply different colors or components, but the user cannot selectively apply only one component based on preference
Solution Approach 1:
The lipstick device is segmented into two independent component delivery systems: an outer lipstick lead and an inner reservoir with deformable wall. This segmentation allows each component to be controlled and applied independently, enabling the user to select and apply only the desired component (first component alone, second component alone, or both together).
Solution Approach 2:
The inner reservoir incorporates a deformable wall that can be dynamically compressed by the user's finger. This dynamic mechanism allows the user to control the transport and application of the second component on-demand, providing selective application capability that was missing in conventional dual-component lipsticks.
2Adaptability or versatility
If a plastic lead with opening and reservoir is used, then component transport is enabled, but the device structure becomes more complex
Solution Approach 1:
The patent merges multiple functions into a unified lipstick structure: the outer lipstick lead serves as both the container for the first component and the application surface, while the inner reservoir with deformable wall integrates storage and controlled delivery of the second component. The cover simultaneously protects both components and includes a rod that seals the opening when closed.
Solution Approach 2:
The inner reservoir utilizes a deformable wall (flexible membrane) that can be compressed by the user's finger to transport the second component. This flexible structure enables simple, user-controlled component delivery without requiring complex mechanical pumps or valves, maintaining device simplicity while achieving versatile component transport.
Data Source
Figure 1~2
Figure 3
AI summary
The apparatus i.e. lipstick (1), has a body i.e. lipstick lead (2) made of a component and including an opening (3) extending through the component, and a reservoir (4) containing another component. The body and the reservoir are fluidly communicated to transport the later component from the reservoir through the opening on the body. The reservoir contains a deformable wall (5), where a lid protects the body and comprises inner side unit that is partially placed in the opening the body, when the lid is closed.