Reusable food covers
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Solution Overview
Problem
Existing food covers fail to provide an adequate seal for partially consumed fruits and vegetables, leading to waste due to exposure to air, moisture loss, and bacterial contamination, and are often bulky, difficult to use, and not reusable.
Innovation Solution
Reusable, one-piece dish-shaped food covers that self-secure to the food, reducing air flow and preserving freshness by compressing onto the food surface, made from flexible materials like silicone, and designed to accommodate various food shapes and sizes, allowing for easy use and multiple applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rigid containers with threaded connections are used, then the container can enclose food, but mating the threads requires care and patience
Solution Approach 1:
The rigid container is divided into two separate pieces (a lid and a base) that connect through threading. This segmentation allows for a secure enclosed seal while making the components manageable, though it introduces the complexity of thread mating as noted in the background.
Solution Approach 2:
The patent combines the sealing and closing functions into a single integrated action. The lid piece simultaneously seals the food and closes the container when screwed onto the base, eliminating the need for separate sealing steps and improving ease of operation.
2Device complexity
If rigid containers with hinges are used, then the container can be formed of a single piece, but it leaves food exposed to significant open air circulation
Solution Approach 1:
The patent employs a flexible membrane or film that conforms to the opening of the rigid container. This flexible element creates an effective seal against air circulation while allowing the rigid container to maintain its simple hinged structure for ease of opening and closing.
3Shape
If rigid containers are designed to resemble the food they contain, then they can be shaped specifically, but they fail to offer flexibility for various food shapes
Solution Approach 1:
The patent designs the rigid container with a standardized opening shape and size that can accommodate various foods. The flexible membrane adapts to different food shapes and sizes within the same container, providing universality and versatility while maintaining a consistent container form.
Solution Approach 2:
The flexible membrane can be molded or stretched to conform to different food shapes and sizes. This allows a single rigid container design to serve multiple food types, resolving the contradiction between fixed container shape and adaptability to various foods.
4Illumination intensity
If transparent halves are used, then food is visible, but the opaque half may obscure food from view
Solution Approach 1:
The patent incorporates color-coding or visual indicators on the flexible membrane or container exterior that allow users to identify contents without opening the container. This maintains food visibility and identification while preserving the protective seal.
5Adaptability or versatility
If containers are made larger than the food, then they can enclose various foods, but they take up limited space in refrigerator drawers
Solution Approach 1:
The flexible membrane can be compressed or folded when not in use, allowing the container to occupy less space in the refrigerator. When in use, it expands to accommodate the food, providing adaptability without permanently requiring large storage volume.
Solution Approach 2:
The patent designs the flexible membrane or container components to nest within each other when not in use. This allows multiple containers or components to be stored compactly, reducing the overall space required in the refrigerator while maintaining the ability to accommodate various food sizes.
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 solution effectively extends the freshness of partially consumed foods by minimizing air exposure and moisture loss, reducing waste, and providing a durable, easy-to-use option for a wide range of food items.
Implementation Method 1
Reusable, one-piece dish-shaped covers that self-secure to the food, reducing air flow and preserving freshness by compressing onto the food surface
Implementation Method 2
The covers are made from flexible materials like silicone
Data Source
AI summary
The present disclosure is directed to reusable food covers. Such reusable food covers may be flexible so that they can create a seal with partially consumed foods, such as fruits and vegetables, to preserve these foods and extend the time of being suitable and desirable for consumption. Each cover may include a base and a flexible wall formed as a single unitary structure.