IP Library › Granted Patent US 9,960,589
Granted Patent B1
US 9,960,589 · App. 15/077,449 · Granted May 1, 2018

Stovetop timer kit

Inventor: James Gleason (Lakewood, CO)
H02H3/08F24C7/088H02H7/20H05B1/0202H05B1/0258
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Quick Facts
Patent No.
US 9,960,589
App. No.
15/077,449
Granted
May 1, 2018
Kind
B1
Abstract

The stovetop timer kit is an aftermarket circuit interrupt device adapted for use with electric stoves. The stovetop timer kit uses a current transducer that senses the current flow to the burners and oven of the electric stove. A microcontroller monitors the current flow through the current transducer and when an overcurrent situation is sensed the microcontroller cuts off electric current flow to the burners and oven of the electric stove. The microcontroller is a programmable device that is used to control and operate the device. The stovetop timer kit comprises a control module and an interrupt circuit.

Claims (27)

1. A circuit interrupt device comprising:

a control module and an interrupt circuit;

wherein the circuit interrupt device is adapted for aftermarket installation;

wherein the circuit interrupt device is adapted for use with an electric stove;

wherein the circuit interrupt device uses a current transducer to senses electric current flow to the burners and oven of the electric stove;

wherein a microcontroller monitors the electric current flow through the current transducer;

wherein when an overcurrent situation is sensed by the microcontroller, the microcontroller disconnects electric current flow to the burners and oven of the electric stove;

wherein when an overcurrent situation is sensed by the microcontroller, the microcontroller does not disconnect the electric current flow to the accessories associated with the electric stove;

wherein the control module comprises a microcontroller, a current transducer, a power conditioner, and a data entry display;

wherein the current transducer is induction based current sensor;

wherein the current transducer is wired to monitor the flow of electricity to the burners and oven of the electric stove;

wherein the power conditioner is an AC-DC rectifier and voltage regulator;

wherein the power conditioner provides electric power to the microcontroller, the current transducer, and the data entry display;

wherein the data entry display is a touchscreen display;

wherein the interrupt circuit comprises a first relay, a power cord and a transfer cord;

wherein the first relay further comprises a first switch and a first coil;

wherein the first switch is a normally closed switch;

wherein the first switch is place in series between the national electric grid and the burners and oven of the electric stove;

wherein when the first coil is powered first switch interrupts electricity flow;

wherein the interrupt circuit further comprises a second relay.

2. The circuit interrupt device according to claim 1 wherein the second relay is configured as a step up relay.

3. The circuit interrupt device according to claim 2 wherein the second relay further comprises a second switch and a second coil.

4. The circuit interrupt device according to claim 3 wherein the second switch is a normally open switch.

5. The circuit interrupt device according to claim 4 wherein the second coil is connected to the microcontroller.

6. The circuit interrupt device according to claim 5 wherein the second switch is placed in series between the national electric grid and the first coil.

7. The circuit interrupt device according to claim 6 wherein the power cord transfers electric power from the national electric grid to the circuit interrupt device.

8. The circuit interrupt device according to claim 7 wherein the transfer cord transfers electric power from the circuit interrupt device to the electric stove.