Modular Personal Care Applicator with Interchangeable Cartridges
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Solution Overview
Problem
Conventional personal care product applicator containers are typically single-use and restrict usage to a single user, limiting refillability and versatility.
Innovation Solution
A modular personal care product applicator container system featuring interchangeable cartridge assemblies that can be refilled, rearranged, or discarded individually, allowing for multiple cartridges to be stacked and secured along a common axis with securement mechanisms such as helical threads, bayonets, or magnetic connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If a single-unit applicator container is used, then the structure is simple, but the entire container must be discarded when the product is used up, leading to waste
Solution Approach 1:
The applicator container is divided into two main segments: a reusable applicator body and a disposable cartridge assembly. The cartridge assembly can be removed and replaced when depleted, allowing the applicator body to be reused. This segmentation resolves the contradiction by enabling partial disposal (only the cartridge) rather than complete disposal of the entire container, reducing waste while maintaining structural simplicity through modular design.
2Adaptability or versatility
If a single-unit applicator container is used, then the manufacturing process is simple, but refillability is restricted
Solution Approach 1:
The container is segmented into a permanent applicator body and a replaceable cartridge assembly. The cartridge assembly includes a cartridge holder and product cartridge that can be independently manufactured and refilled. This allows the system to be refilled by replacing cartridges rather than manufacturing entirely new containers, enhancing refillability while keeping the manufacturing process relatively simple through standardized modular components.
Solution Approach 2:
The cartridge assembly is designed with dynamic attachment and detachment capabilities through securing mechanisms (such as snap-fit or threaded connections). This dynamic design allows the cartridge to be easily removed and replaced by the user, providing refillability without requiring complex manufacturing processes for permanent sealing or disassembly mechanisms.
3Adaptability or versatility
If a single-user applicator container is used, then the design is simple, but usage is restricted to a single user
Solution Approach 1:
The applicator body is designed as a universal platform that can accommodate multiple different cartridge assemblies. The standardized interface and securing mechanism allow different users to use the same applicator body with their own personalized cartridges. This multi-functionality enables the container to serve multiple users while maintaining a relatively simple and consistent structural design.
4Adaptability or versatility
If multiple cartridge assemblies are stacked in series, then refillability and versatility are improved, but the securing mechanism becomes more complex
Solution Approach 1:
The multi-cartridge system is segmented into identical, standardized cartridge assemblies that can be stacked in series. Each cartridge assembly has the same securing interface design, allowing them to be attached sequentially to the applicator body. This standardization enables flexible configuration (single or multiple cartridges) while keeping the securing mechanism itself relatively simple and consistent across all attachment points.
Data Source
AI summary
A personal care product applicator comprises a plurality of cartridge assemblies arranged in series along a common axis, wherein each cartridge assembly include a cartridge holder comprising a body that includes a cylindrical wall with an axial length, an attaching means proximate a top of the body, an upper securement and a lower securement, for securing the plurality of cartridge assemblies in series. and a cartridge including a base, a volume of personal care composition applied to an upper surface of the base, and an attaching member, configured for attaching the cartridge to the attaching means of the cartridge holder.