Self-Sealing Microwave Steam Bag with Adhesive Flap
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Solution Overview
Problem
Existing microwave cooking solutions for consumers are either expensive or difficult to reuse, as they require complex mechanisms to maintain pressure and vent steam effectively while cooking food, which increases production costs and reduces reusability.
Innovation Solution
A flexible, food-safe container with a front and rear panel sealed on three sides, featuring a flap with an adhesive strip and removable cover, allowing for easy sealing and partial pressure release through a fold mechanism, enabling efficient steam cooking without rupture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flexible container is designed to withstand pressure and vent steam effectively, then cooking performance is improved, but production cost increases
Solution Approach 1:
The container is divided into a body portion and a separate lid with adhesive seal, allowing each part to be manufactured independently and simply. The lid incorporates the venting function separately from the sealing function, enabling cost-effective production while maintaining cooking performance through modular design
Solution Approach 2:
The container is designed as a disposable product with simple construction using inexpensive materials. The adhesive seal is intended for single use only, and the overall container structure is optimized for low-cost manufacturing rather than durability, aligning with the principle of affordable single-use cooking solutions
2Reliability
If a complex pressure maintenance mechanism is used, then steaming effectiveness is improved, but device complexity increases
Solution Approach 1:
The container automatically maintains pressure through its own structure during cooking. The adhesive seal creates a closed system that retains steam and heat, while the venting mechanism in the lid automatically releases excess pressure without requiring external control or complex mechanical components
Solution Approach 2:
The venting function is achieved through a simple structural feature in the lid rather than a complex mechanical pressure regulation system. The adhesive seal replaces complex locking mechanisms, and the overall pressure control is accomplished through passive design elements rather than active mechanical systems
3Reliability
If an effective steam venting mechanism is incorporated, then pressure control is improved, but reusability decreases
Solution Approach 1:
The container is designed as a disposable product where the adhesive seal is intended for single use. The venting mechanism and seal are optimized for effective single-use pressure control rather than durability for multiple uses, aligning with the principle of affordable single-use cooking solutions
Solution Approach 2:
The container and especially the adhesive seal are designed to be discarded after single use. The venting mechanism serves its purpose during the cooking process and then the entire container is disposed of, eliminating the need to design for reusability while maintaining effective pressure control during the cooking operation
4Reliability
If a strong adhesive seal is used to maintain pressure, then sealing effectiveness is improved, but ease of opening decreases
Solution Approach 1:
The seal is segmented into an adhesive portion and a removable cover strip. The adhesive provides strong sealing during cooking, while the cover strip is designed to be easily removed before cooking and after cooking by pulling, allowing the container to be opened without complex mechanisms
Solution Approach 2:
The cover strip is removed in advance before cooking to allow the adhesive seal to function properly during the cooking process. After cooking, the adhesive seal naturally releases when the container cools and pressure equalizes, allowing easy opening without requiring force or complex opening mechanisms
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 container is inexpensive to produce, allows for multiple uses, and effectively steams food while preventing rupture, maintaining nutritional value and energy efficiency, making it suitable for single-use consumer applications.
Implementation Method 1
an adhesive strip provided with a removable cover strip intended to be removed by the user when closing the container
Implementation Method 2
The user is instructed to fold the container across both layers rather than simply across the junction of the flap and front panel in order to seal it prior to cooking. This creates a container which is effectively sealed but which is capable of releasing excess pressure
Implementation Method 3
cooking of food in a pressurized container accelerates the heating effect
Implementation Method 4
the heating effect in a microwave oven
Implementation Method 5
steaming the food in a self venting bag
Implementation Method 6
allowing the escape of water vapour
Data Source
AI summary
According to the present invention there is provided a flexible container for use by the end user as a cooking utensil. Said container comprises a front and rear panel formed of a food safe material and sealed at three sides, the rear panel being extended beyond the front panel on the unsealed fourth side to form a flap. On the upper side of the flap is formed an adhesive strip provided with a removable cover strip intended to be removed by the user when closing the container. The user is instructed to fold the container across both layers rather than simply across the junction of the flap and front panel in order to seal it prior to cooking. This creates a container which is effectively sealed but which is capable of releasing excess pressure above that level needed to steam the contents thoroughly. At the opposite end and sides of the container, away from the flap, a second weld parallel to the sealed edge may be formed on one or more sides in order to create an area which is not subject to the steam effect which occurs when food is heated, thus forming a cooler area for handling by the user when the product is cooked and removed from the microwave oven.