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US 2003/0198001 A1Published application
Methods and systems for protecting circuit
OwnerLawrence Lileinventor
Life of this patent
Estimating the term…
Abstract
The present invention relates to a safety switch on a circuit connecting a power supply to a load. The safety switch includes a diode in series between the power supply and the load where the diode is also in series between the power supply and the latching coil.
Claims7
A toaster comprising:
- a heating element;
- a DC operated latching coil;
- and
- a diode in series between a power supply and the heating element, the diode also being in series between the power supply and the latching coil.
1 more element
A switch for disconnecting a load from a power supply, comprising:
- a DC operated latching coil;
- and
- a diode in series between the power supply and the load, the diode also being in series between the power supply and the latching coil.
A switch for disconnecting a load from a power supply, comprising:
- a DC operated latching coil in parallel with the load;
- and
- a diode in series between the power supply and the load.
A device comprising:
- a heating element;
- a switch;
- a DC latching coil coupled to the switch;
- and
- a diode in series between a power supply and the latching coil, the diode also being in series between the power supply and the heating element, wherein the switch provides the power supply to the diode when the diode rectifies the power supply to the coil.
2 more elements
A method, comprising the steps of:
- receiving alternating current;
- rectifying the alternating current;
- supplying the rectified current to a load;
- and
- supplying the rectified current to a latching coil.
2 more elements
Dependencies are inferred from the claim text.