Spring-Free Beverage Valve Using Elastic Body Sealing
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Solution Overview
Problem
Existing beverage container valves often rely on metal springs, which can complicate recyclability and durability, and may not be suitable for all manufacturing processes or environmental conditions.
Innovation Solution
A valve design for beverage containers that eliminates the need for metal springs by using an elastic valve body with a closed upper end section and a lower end section that contacts the valve housing, allowing for manual operation without the need for a spring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal spring is used to bias the valve body, then the valve can reliably maintain sealing and control beverage flow, but the valve becomes less recyclable and more complex to manufacture
Solution Approach 1:
The invention extracts and removes the metal spring component from the valve assembly. The valve body is designed to function without a spring, using the elastic properties of the valve body itself and the mechanical interaction with the mounting element to achieve reliable sealing and flow control. This extraction eliminates the need for metal parts, improving recyclability while maintaining manufacturing simplicity.
Solution Approach 2:
The invention replaces the mechanical spring-based biasing system with an alternative mechanism where the valve body's own elasticity and the mounting element's structure provide the necessary sealing force. The mounting element's outer peripheral side seals against the container edge, and the valve body is biased axially by the mounting element itself rather than a separate spring component.
2Reliability
If a metal spring is used to bias the valve body, then the valve can maintain sealing force, but the valve durability is reduced due to spring fatigue and metal corrosion
Solution Approach 1:
By removing the metal spring entirely, the invention eliminates the sources of spring fatigue and metal corrosion. The sealing force is maintained through the elastic deformation of the valve body itself and the mechanical constraint provided by the mounting element, both of which can be made from corrosion-resistant materials and do not suffer from cyclic fatigue in the same way metal springs do.
Solution Approach 2:
The invention changes the material parameters and mechanical properties of the valve components. Instead of using a metal spring with elastic properties, the valve body itself is made elastic or flexible, allowing it to deform and provide sealing force without the fatigue limitations of metal springs. This parameter change in material selection and mechanical behavior extends the valve's service life.
3Ease of manufacture
If a spring-free valve design is used, then the valve is easier to manufacture and more recyclable, but the valve may have difficulty maintaining sealing force
Solution Approach 1:
The valve body is designed to be self-biasing, using its own elastic properties and the mechanical interaction with the mounting element to maintain sealing force without requiring an external spring component. The mounting element's structure itself provides the biasing force, making the system self-sufficient and eliminating the need for separate spring parts while maintaining reliable sealing.
Solution Approach 2:
The valve body is designed with flexible or elastic characteristics, allowing it to deform under pressure and maintain contact with the sealing surfaces. This flexibility compensates for the absence of a metal spring, enabling the valve to maintain sealing force through elastic deformation of the valve body itself rather than through a separate spring mechanism.
4Loss of substance
If a valve without metal spring is used, then the valve is fully recyclable, but the device complexity may increase to achieve the same function
Solution Approach 1:
The invention merges the function of the spring into the valve body and mounting element structure. Instead of having a separate spring component, the biasing and sealing functions are integrated into the valve body's elastic properties and the mounting element's mechanical structure. This consolidation eliminates metal parts for recycling while actually reducing overall structural complexity by removing a separate component.
Solution Approach 2:
The mounting element is designed to serve multiple functions: it provides structural support, creates the sealing interface with the container edge, and simultaneously provides the biasing force for the valve body without requiring a separate spring. This multi-functionality reduces the number of parts needed while maintaining all necessary valve functions, simplifying the overall device structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The valve provides reliable sealing and easy dispensing of beverages while being easier to manufacture, more cost-effective, and fully recyclable, with improved durability and reduced environmental impact.
Implementation Method 1
the valve body comprises a closed upper end section fixedly received in the beverage outlet opening in the first position and operable to be moved away from the beverage outlet opening to the second position
Implementation Method 2
a lower end section extending axially from the closed upper end in the direction of the housing bottom wall, the lower end arranged to contact an inner surface of the housing at least in the second position
Data Source
AI summary
A valve for a beverage container comprises a mounting element for mounting the valve in a container opening. A valve body is axially moveable inside the valve housing from a first position closing off the beverage outlet opening to a second position opening a fluid connection through the beverage outlet opening.