Radial Locking Liquid Applicator with Frangible Projection
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Solution Overview
Problem
Existing liquid dispensing applicators face challenges with reliability, ease of use, safety, and effective fluid application due to inconsistent performance and complex design requirements, particularly in the deflection method and configuration of the tongue element, which affects the fluid flow and hygiene aspects.
Innovation Solution
A liquid dispensing applicator design featuring a container body with offset projections that break upon rotation, allowing fluid communication with a head component, utilizing a dual-locking system for secure alignment and controlled fluid flow, ensuring consistent and controlled liquid release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a frangible applicator tip with a tongue element is used to control fluid flow, then the liquid can be retained and released upon deflection, but the structural support requirement leads to inconsistent performance and complicated manufacture
Solution Approach 1:
The invention extracts the frangible applicator tip from the system, replacing it with a sealed container body that breaks open upon insertion into the head component. This eliminates the complex tongue element configuration while maintaining reliable liquid retention and release through the sealing interface between container and head
Solution Approach 2:
The applicator is segmented into two separate components: a sealed container body and a head component with absorbent material. This segmentation allows each component to be optimized independently - the container for secure sealing and the head for controlled liquid distribution - thereby simplifying manufacturing while improving reliability
2Ease of manufacture
If the tongue element provides structural support for the absorbent member, then the components can be assembled, but this leads to inconsistent performance and complicated design requirements
Solution Approach 1:
The tongue element is completely removed from the design. Instead, the container body provides structural support through its rigid sealed construction, and the head component receives the container with its absorbent material already positioned, eliminating complex tongue element design and manufacturing precision requirements
Solution Approach 2:
The absorbent material is pre-positioned in the head component before the container is inserted. This preliminary action eliminates the need for complex assembly operations involving tongue elements, allowing for simpler manufacturing processes and more consistent performance
3Reliability
If a radial locking system is implemented to secure the container to the head, then the components remain securely aligned during use, but the assembly complexity increases
Solution Approach 1:
The radial locking system is designed to automatically engage when the container is inserted into the head component. The offset projection and slot system self-align during insertion, and the locking mechanism activates without requiring additional user actions or complex adjustment procedures, maintaining simplicity while ensuring secure alignment
Data Source
AI summary
A liquid dispensing applicator can include a container body containing a liquid and having an end with a projection; a head component cooperating with the container body and having a slot for receiving the projection; the container body and the head component being rotatable with respect to each other to enable engagement of the projection and the slot and cause breakage of the projection allowing the liquid to flow from the container body into the head component; and a radial locking system for radially locking the container body and the head component together after rotation with respect to each other. The radial locking system can include a lip-and-channel system where the lip radially slides within the channel and is retained at a far end in a fluid application position.