Heat-Emitting Pan Lid With Inner Shield for Even Top Browning
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Solution Overview
Problem
Conventional cooking methods, such as using stoves and hotplates, only heat food from the bottom, requiring frequent flipping to cook the top side, which can lead to food falling apart or not being cooked evenly.
Innovation Solution
A heat-emitting pan lid with a built-in heating element, such as a nichrome coil or infrared bulb, that radiates heat downward to cook the top of food items placed within a standard pan, equipped with safety features like automatic shut-off and steam vent to prevent burns and fires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional bottom-only heating is used, then the heating mechanism is simple, but the food cannot be cooked evenly and requires frequent flipping
Solution Approach 1:
The patent combines bottom heating and top heating functions into a single cooking system. The lid is transformed into an active heating component with integrated heating elements, working in conjunction with the stove's bottom heating to achieve even cooking without requiring manual flipping of the food.
Solution Approach 2:
Instead of only heating from the bottom as in conventional cooking, the patent inverts the approach by adding active heating capability to the lid that heats from the top downward. This dual-directional heating approach solves the problem of uneven cooking and eliminates the need for frequent flipping.
2Reliability
If frequent flipping is required to cook the top side, then the cooking process is complete, but the food may fall apart and the process is time-consuming
Solution Approach 1:
The top heating element activates simultaneously with or before the bottom heating, pre-cooking the top surface of the food. This preliminary action from both directions ensures that when the cooking is complete, the food maintains its integrity without requiring intermediate flipping operations that could cause damage.
Solution Approach 2:
The patent enables continuous heating from both the bottom and top surfaces simultaneously, eliminating the intermittent flipping process. This continuous dual-directional heating maintains food integrity while reducing total cooking time by cooking both surfaces concurrently rather than sequentially.
3Productivity
If a heating element is added to the lid, then top heating is achieved, but the risk of burns and fires increases
Solution Approach 1:
The patent introduces safety intermediary components between the heating elements and the food/cooking environment. These include temperature sensors, control systems, and protective mechanisms that mediate the heating process, automatically regulating temperature and shutting down heating when safe thresholds are exceeded, thereby maintaining cooking efficiency while reducing burn and fire risks.
Solution Approach 2:
The heating system incorporates feedback mechanisms through temperature sensors and control circuits that continuously monitor the heating process. When the lid heating element reaches safe temperature thresholds or detects abnormal conditions, the system automatically adjusts or shuts off the heating, providing feedback control that maintains productivity while minimizing harmful effects.
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
Enables efficient and even cooking of food without flipping, reducing cooking time and the risk of food falling apart, while incorporating safety features to prevent burns and fires.
Implementation Method 1
The heating element may be an electrical heating coil, an electrical heating disc, or an infrared bulb. In the preferred embodiment, the heating element is a heating coil formed from a resistance element that generates heat when current is passed through it.
Implementation Method 2
In an alternative embodiment, the heating element is a bulb that emits infrared light, such as a quartz heat lamp or halogen heat lamp.
Implementation Method 3
Beneath the heating element is a protective transparent plate formed from a heat-tempered glass-ceramic material, or similar material, that permits the passage of heat.
Implementation Method 4
The thermal insulation reduces the transmission of heat from the heating element upward, toward the top of the device. By reducing the flow of heat upward, the device is made more efficient to avoid wasting heat, as well as safer by preventing burns.
Data Source
AI summary
The disclosed device is a heat-emitting lid for use on top of a standard cooking pan. The device comprises a body including a heat element that radiates heat downward during use. By radiating heat downward, the food item within the pan may be cooked or browned more evenly by heating simultaneously from the top and bottom. A transparent plate protects the heating element from contamination by the food cooking within the pan.