Dual Purpose Screw Coupling Piece for Pressure Containers
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Solution Overview
Problem
Current containers under pressure, designed for use with either dispensing guns or handheld applicators, face issues such as valve stem repositioning due to internal pressure and temperature changes, leading to suboptimal coupling and potential leakage, and require separate shielding caps, increasing production complexity and supply chain burdens.
Innovation Solution
A dual-purpose coupling piece with an externally threaded section for dispensing guns and internal support legs to maintain valve stem position, allowing use with both dispensing guns and handheld applicators, and an integrated cap for safety and single-step production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a container is designed with a valve stem that can be actuated by handheld applicators, then the container becomes suitable for DIY use, but the valve stem may reposition due to internal pressure and temperature changes leading to suboptimal coupling
Solution Approach 1:
The patent applies preliminary anti-action by providing counteracting elements (protrusions on the valve cup that engage with recesses in the coupling piece) that prevent the harmful repositioning of the valve stem before it can cause coupling failures or leakage. This preemptive measure counteracts the pressure-induced movement that would otherwise occur during storage and transport.
2Object-affected harmful factors
If separate shielding caps are provided for containers designed for dispensing guns, then valve protection is improved, but production complexity and supply chain burden increase
Solution Approach 1:
The patent merges the shielding cap function with the coupling piece by integrating the cap as part of the coupling assembly. The coupling piece itself provides the shielding function through its structure that covers and protects the valve stem when not in use, eliminating the need for separate shielding caps while maintaining protection functionality.
Solution Approach 2:
The coupling piece is designed to serve multiple functions: it provides the mechanical coupling interface for actuating the valve, offers shielding and protection for the valve stem during storage and transport, and enables both handheld and dispensing gun compatibility. This multi-functionality eliminates the need for separate protective components.
3Adaptability or versatility
If the coupling piece is designed to work with both dispensing guns and handheld applicators, then versatility is improved, but the design complexity increases
Solution Approach 1:
The coupling piece is designed with universal functionality to work with both handheld applicators and dispensing guns. It features a standardized interface with the valve stem and actuation mechanism that can be engaged by different types of applicators, allowing a single coupling design to serve multiple purposes without requiring complex adaptation mechanisms.
Solution Approach 2:
The coupling system is segmented into distinct functional components: the coupling piece that interfaces with the valve, the actuation mechanism that transfers force to open the valve, and the shielding portion that protects the valve stem. This segmentation allows each component to be optimized for its specific function while maintaining overall simplicity and versatility.
Data Source
AI summary
A dual purpose coupling piece is provided for on the one hand the screw coupling of a disposable pressure container with a dispensing gun, and which further includes means for on the other hand also cooperating in a bayonet-type coupling with a suitable handheld applicator for application of the compound as in the handheld use. A suitable handheld applicator is also provided. The coupling piece and/or the handheld applicator may be designed for the production as one single product using injection moulding. Further provided is an assembly of a container with the coupling piece, and a process for producing the coupling piece and the assembly, as well as the handheld applicator.