Adjustable Dauber Assembly in Multilayer Solvent Cement Container
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Solution Overview
Problem
Existing dauber applicators face issues with durability, length variability, and container material reactivity, leading to inefficiencies in solvent cement application and storage, with tin containers prone to rusting and denting, and fixed-length metal daubers not accommodating diverse application surfaces effectively.
Innovation Solution
A plastic multilayer container with a snap-fit metal dauber assembly, featuring a plastic cap with a cavity and a metal dauber wire shaped into patterns for adjustable length, combined with a five-layer container structure providing chemical resistance, non-reactivity, and durability, eliminating the need for welding or soldering and accommodating various sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tin containers are used for packing solvent cement, then storage capacity is provided, but rusting and denting occur reducing durability
Solution Approach 1:
The patent employs a composite container structure consisting of an outer plastic layer and an inner metal layer. The plastic layer provides corrosion resistance and dent proof properties, while the metal layer maintains structural strength. This composite design eliminates the rusting and denting issues of pure tin containers while preserving storage capacity.
Solution Approach 2:
The plastic layer acts as an intermediary protective barrier between the solvent cement and the metal container wall. This intermediate layer prevents direct contact between the corrosive solvent and the metal, thereby preventing rusting while allowing the metal structure to provide mechanical strength.
2Adaptability or versatility
If fixed length metal dauber is used, then manufacturing is simplified, but cannot accommodate different application surface requirements
Solution Approach 1:
The patent implements a dynamic dauber length adjustment mechanism where the metal dauber can be extended or retracted within the plastic cap. This allows the applicator to adapt to different application surface requirements while maintaining a compact storage form factor. The dauber length can be modified based on the specific application task.
Solution Approach 2:
The dauber assembly is segmented into adjustable components within the cap structure. The metal dauber is divided into sections that can be independently positioned and secured at different lengths, enabling customization for various application surfaces while simplifying the overall configuration through modular design.
3Strength
If welding or soldering is used to attach metal dauber to plastic cap, then connection strength is improved, but deformation and loose connection possibilities occur
Solution Approach 1:
The patent replaces the thermal joining processes (welding or soldering) with a mechanical interference fit system. The metal dauber is designed with a diameter that creates a secure mechanical connection within the plastic cap through friction and geometric interlocking, eliminating the risks of thermal deformation and weak joints associated with welding/soldering methods.
Solution Approach 2:
The connection mechanism relies on precise dimensional parameters of the metal dauber and plastic cap interface. By controlling the diameter and length parameters of the dauber, a reliable mechanical fit is achieved within the plastic cap without requiring thermal processes, thereby ensuring connection stability while avoiding deformation.
4Productivity
If very small or very large length of applicator is used, then container compatibility is improved, but insufficient solvent cement application to targeted surface occurs
Solution Approach 1:
The patent implements a dynamic dauber length adjustment mechanism where the metal dauber can be extended or retracted within the plastic cap. This allows the applicator to adapt to different application surface requirements while maintaining a compact storage form factor. The dauber length can be modified based on the specific application task.
Data Source
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AI summary
Disclosed is a cap 101 and a plastic multilayer container 601 for solvent cement products. Further, the cap 101 comprises a cavity 102. The cavity may be configured to accommodate a metal dauber applicator comprising a metal dauber applicator wire 104, wherein the wire 104 comprises a first end 302 and a second end 304, wherein the first end 302 may be fitted with cotton blob 105. Further, the second end 304 may be shaped. The system 600 may comprise a holding means 103, molded over at second end 304. Further, the holding means 103 is configured to be press fitted in the cavity 102, thereby forming the cap 101 and the metal dauber assembly. Further, the cap 101 may comprise internal threads 106, which enables the cap 101 to be screwed onto a plastic multilayer container 601.