Many people forget to turn off gas stoves while cooking, leading to overcooked or burnt food, increased fire hazards, and wasted energy. Existing solutions, such as built-in safety features, are not widely adopted, and aftermarket automatic shut-off devices often rely on motors, which are costly, require frequent charging, and can be difficult to install on different stove models.
The Innovation: A Simpler, Low-Power Auto Shut-Off Mechanism
This invention introduces an automatic flame-off device that eliminates the need for motors, using a torsion spring to rotate the stove knob back to the "off" position. It works by:
- Using a timer to set the shut-off time.
- Holding the knob in place with a limit pin controlled by a low-power electromagnet.
- When the set time expires, the electromagnet briefly activates, releasing the limit pin, and the torsion spring rotates the knob to turn off the stove.
Key Differences from Existing Solutions
- No motor required: Reduces cost and power consumption.
- Universal compatibility: A universal knob adapter ensures that it fits various stove knobs.
- Long battery life: The electromagnet only needs a brief pulse of power, minimizing the need for frequent recharging.
- Easy installation & use: The device sits on top of the stove knob and is held in place with a non-slip rubber pad.
Benefits
- Prevents kitchen fires by automatically shutting off unattended stoves.
- Saves energy and reduces gas waste.
- Reduces food waste by preventing overcooking.
- Improves convenience with a simple, universal design requiring no complex installation.
Broader Impact
This device enhances home safety, particularly for busy households, elderly users, and individuals with memory challenges. It also supports sustainability by minimizing gas waste and reducing the risk of fire-related damage.