Cooking Pot Lid with Rotatable Venting to Reduce Boiling Over
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Solution Overview
Problem
Conventional cooking pots face challenges in balancing lid placement, leading to excessive heat or moisture loss, risk of boiling over, and potential damage to the cooktop due to inadequate venting options.
Innovation Solution
A cooking pot design featuring a food vessel with an oval or polygon-shaped opening and a corresponding lid that can be rotated to expose corners, allowing dynamic venting while preventing excessive moisture loss and minimizing mess, with protruding rings and dots on the lid to direct condensation back into the pot.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the pot is fully covered with a lid, then evaporation of liquids is prevented and cooking time is reduced, but the risk of boiling over increases and mess is created on the cooktop
Solution Approach 1:
The lid is designed to be rotatable about the vertical axis of the vessel, allowing dynamic adjustment between fully covering (for faster cooking) and partially uncovering (for venting steam). This transforms a static lid into a dynamic component that can adapt to different cooking stages and requirements.
2Object-affected harmful factors
If the pot is left uncovered, then steam can escape and boiling over is prevented, but excessive loss of heat and moisture occurs and cooking time increases
Solution Approach 1:
The rotatable lid enables the user to dynamically control the degree of coverage, allowing the pot to transition between covered (retaining heat and moisture) and uncovered (releasing steam) states as needed during the cooking process.
3Object-affected harmful factors
If the lid is partially covering the pot balanced on the rim, then evaporation is reduced and boiling over is prevented, but the lid can be easily knocked over and condensation can drip onto the cooktop
Solution Approach 1:
Instead of balancing the lid precariously on the rim, the invention uses a rotatable lid that sits securely on the opening. The lid can be rotated to any angle to achieve partial coverage while maintaining stable contact with the vessel opening, eliminating the risk of knocking over.
Solution Approach 2:
The lid and opening are designed with complementary asymmetric shapes (oval or polygon with more than two sides) that provide stable engagement. The shape mismatch between lid and opening creates natural stopping positions and prevents the lid from being accidentally dislodged.
4Object-affected harmful factors
If the lid is partially covering the pot balanced on the rim, then evaporation is reduced, but condensation formed on the lid can drip onto the cooktop via the overhang portion
Solution Approach 1:
The asymmetric shape of the lid and opening creates stable engagement that prevents the lid from overhanging beyond the vessel edge. The shape complementarity ensures the lid remains positioned over the opening, directing condensation back into the pot rather than allowing it to drip onto the cooktop.
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
This design enables efficient steam release without excessive heat or moisture loss, reduces the risk of boiling over, and protects the cooktop from condensation drips, resulting in faster cooking and reduced cleaning and utility costs.
Implementation Method 1
condensed liquid formed on the bottom face of the lid
Data Source
AI summary
Described herein is a cooking pot comprising (a) a food vessel that has an opening in the shape of an oval or a polygon with more than two sides, and (b) a lid sized and shaped to substantially cover the opening of the food vessel. According to some embodiments of the present disclosure, the lid has a ring protruding from the bottom face, concentric about a vertical axis of the vessel. When the lid is rotated about the vertical axis at an angle from a closed position, the protruding ring is positioned adjacent to an interior edge of the vessel, corners or vertices of the opening are uncovered, and corresponding corners or vertices of the lid hang over the vessel exterior.