Inert Gas Dosing for Oxygen-Sensitive Item Preservation
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Solution Overview
Problem
Current methods for preserving oxygen-sensitive items like wine are ineffective due to incomplete removal of oxygen, leading to oxidation and spoilage, with existing vacuum systems and inert gas dispensing devices being cumbersome, costly, and inefficient in administering a precise dose of inert gas.
Innovation Solution
A method and device that inject at least 0.15 grams of inert gas into a container without raising pressure above 10 psig, forming a barrier layer between the item and oxygen, while providing a visual or audible indication of successful dosing, using a pressurized inert gas source and a closure device with a pressure sensing mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If vacuum systems are used to remove oxygen, then oxygen removal is attempted, but the systems are ineffective and leave at least half of the oxygen in the enclosed space
Solution Approach 1:
The patent applies the inert atmosphere principle by introducing inert gas (such as nitrogen or argon) into the enclosed space to displace oxygen and create a protective atmosphere. The inert gas forms a barrier layer between the oxygen-sensitive item and the remaining oxygen, preventing oxidation reactions while maintaining a simple and cost-effective system without requiring complex vacuum equipment.
2Reliability
If inert gas is used to displace oxygen, then preservation is improved, but the device requires various housing, tubing, and expensive and bulky parts resulting in high cost and limited mobility
Solution Approach 1:
The patent extracts only the essential function of inert gas dispensing while removing unnecessary components such as complex housing, tubing, and bulky parts. The solution focuses on delivering the inert gas directly to the enclosed space using a simplified mechanism, thereby reducing device complexity and cost while maintaining preservation effectiveness and improving mobility.
Solution Approach 2:
The patent enables the system to self-regulate the inert gas dispensing process through a pressure sensing mechanism that automatically detects when the desired atmosphere is achieved, eliminating the need for complex control systems, manual monitoring, or multiple components. This self-service approach simplifies the device structure while ensuring reliable preservation.
3Quantity of substance
If manual vacuum pumps are used, then oxygen removal is attempted, but the force needed to manually pull a strong vacuum makes the system ineffective and cumbersome
Solution Approach 1:
Instead of attempting to remove oxygen through vacuum pumping (which requires significant manual effort), the patent inverts the approach by introducing inert gas to displace oxygen. This inversion eliminates the need for manual vacuum pumping entirely, making the system easier to operate while achieving the same preservation goal through a more feasible mechanical approach.
4Quantity of substance
If electronic vacuums are used, then oxygen removal is attempted, but the systems have similar ineffectiveness and have added manufacturing expense
Solution Approach 1:
The patent employs a simple, cost-effective inert gas dispensing mechanism that can be manufactured at low cost using basic components. Rather than using expensive electronic vacuum systems, the solution uses a straightforward pressurized gas delivery system with simple pressure sensing, significantly reducing manufacturing expenses while achieving effective preservation through the inert gas barrier layer.
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
Effectively prevents oxidation and spoilage by ensuring a sufficient inert gas dose is administered, providing a simple, cost-effective, and user-friendly solution for preserving oxygen-sensitive items without excessive gas waste.
Implementation Method 1
Many food and beverages degrade in the presence of oxygen through a chemical process called oxidation. For example, oxygen reacts readily with the alcohol in wine to form acetic acid
Implementation Method 2
injecting at least 0.15 gram of an inert gas into a container comprising the oxygen sensitive item and oxygen, without raising a pressure within the container above 10 psig
Data Source
AI summary
A method of preserving an oxygen sensitive item is disclosed. The method involves injecting at least 0.15 gram of an inert gas into a container comprising the oxygen sensitive item and oxygen, without raising a pressure within the container above 10 psig, to form a barrier layer of the inert gas between the oxygen sensitive item and the oxygen in the container without displacing all of the oxygen from the container.