Self-cleaning oven with door lock light

Claim 2

An oven circuit having cooking and self-cleaning cycles including: a. heating element means, b. selector switch means for energizing at least one of said heating element means, c. an electrical energy three-line source including a neutral, an L1 side and an L2 side, d. door lock thermostat means in a series relationship with said neutral source, e. door lock light indicating means connected in parallel with said door lock thermostat means, f. an artificial neutral adapted to be formed between two relatively high resistances, g. one of said resistances being connected to said L1 side of said electrical energy source, and the other of said resistances being connectable to said L2 side of said electrical energy source through said selector switch means when in a cooking position, and h. said door lock light indicating means connected between said neutral and artificial neutral.

Claim 3

The combination set out in claim 1 wherein: a. said selector switch means includes a switch connectable between the L2 side of said electrical energy source and its respective resistance, b. said switch is opened in said self-cleaning cycle position of said selector switch.

Claim 4

The combination set out in claim 2 wherein: a. said door lock thermostat means opens to effect energization of said door lock light, when said switch is in said self-cleaning cycle.

Claim 5

In a pyrolytic heat-cleaning oven including a selector switch selectively settable for a heat-cleaning operation, and for cooking operations capable of heating the oven to temperatures at which the door of said oven is to be locked, a circuit arrangement for eliminating nuisance lighting of an oven door lock light, comprising: a three-wire electrical supply including a neutral, one side, and the other side of the line; a lock light; normally closed switch means in parallel with said lock light for shunting said lock light when said oven is below a temperature at which said door is to be locked; circuit means connecting one side of said light and said normally closed switch means to neutral, and the other side to a circuit location between said one side of the line and said selector switch; circuit means connecting said selector switch to the said other side of the line; said selector switch, when set to a cooking operation capable of elevating the oven to a locking temperature, imposing an electrical neutral upon said circuit location, and when set to a heat-cleaning operation disconnecting said circuit location from said other side of said line; so that said light is effectively between neutral when said selector switch is set for those higher temperature cooking operations, and is between neutral and said one side of the line when said selector switch is set for a heat-cleaning operation.

Claim 6

In a pyrolytic heat-cleaning oven including a selector switch selectively settable for a heat-cleaning operation, and for cooking operations capable of heating the oven to temperatures at which the door of said oven is to be locked, a circuit arrangement for eliminating nuisance lighting of an oven door lock light, comprising: a three-wire electrical supply including a neutral, one side, and the other side of the line; a lock light; normally closed switch means in parallel with said lock light for shunting said lock light when said oven is below a temperature at which said door is to be locked; circuit means connecting one side of said light and said normally closed switch means to neutral, and the other side to a circuit location between said one side of the line and said selector switch; circuit means connecting said selector switch to the said other side of the line; said selector switch, when set to a cooking operation capable of elevating the oven to a locking temperature, imposing an electrical neutral upon said circuit location, and when set to a heat-cleaning operation disconnecting said circuit location from said other side of said line; so that said light is effectively between neutral when said selector switch is set for those higher temperature cooking operations, and is between neutral and said one side of the line when said selector switch is set for a heat-cleaning operation.

Claim 7

The combination set out in claim 4 wherein: a high-value resistance is disposed between said circuit location and said one side of the line, and a high-value resistance is disposed between said circuit location and said other side of said line.

Claim 8

The combination set out in claim 4 wherein: said normally closed switch is open when said oven is at a temperature when said door of said oven is locked.

Claim 9

In a pyrolytic heat-cleaning oven inCluding a selector switch selectively settable for a heat-cleaning operation, and for cooking operations capable of heating the oven to temperatures at which the door of said oven is to be locked, a circuit arrangement for eliminating nuisance lighting of an oven door lock light comprising: a light and lock circuit including said lock light, and a normally closed thermostatic switch operable to an open position in response to oven temperatures at which said door is to be locked, said thermostatic switch being in parallel with said light in said circuit to shunt said light and prevent its energization while said switch is closed; a three-wire electrical supply including a neutral, and one side, and the other side of the line; voltage divider means; circuit means connecting one side of said voltage divider means to said one side of said line, and the other side of said voltage divider means to said other side of said line through said selector switch means when said selector switch is set for those higher temperature cooking operations capable of heating said oven to temperatures effecting said opening of said thermostatic switch, said other side of said voltage divider means being disconnected from said other side of said line when said selector switch means is set for heating cleaning operation; said lock and light circuit having one side connected to said neutral, and the other side connected to the approximate electrical center of said voltage divider means so that said lock and light circuit is effectively between neutral when said selector switch is set for those higher temperature cooking operations, and is between neutral and said one side of the line when said selector switch is set for a heat-cleaning operation.

Claim 10

In a pyrolytic heat-cleaning oven inCluding a selector switch selectively settable for a heat-cleaning operation, and for cooking operations capable of heating the oven to temperatures at which the door of said oven is to be locked, a circuit arrangement for eliminating nuisance lighting of an oven door lock light comprising: a light and lock circuit including said lock light, and a normally closed thermostatic switch operable to an open position in response to oven temperatures at which said door is to be locked, said thermostatic switch being in parallel with said light in said circuit to shunt said light and prevent its energization while said switch is closed; a three-wire electrical supply including a neutral, and one side, and the other side of the line; voltage divider means; circuit means connecting one side of said voltage divider means to said one side of said line, and the other side of said voltage divider means to said other side of said line through said selector switch means when said selector switch is set for those higher temperature cooking operations capable of heating said oven to temperatures effecting said opening of said thermostatic switch, said other side of said voltage divider means being disconnected from said other side of said line when said selector switch means is set for heating cleaning operation; said lock and light circuit having one side connected to said neutral, and the other side connected to the approximate electrical center of said voltage divider means so that said lock and light circuit is effectively between neutral when said selector switch is set for those higher temperature cooking operations, and is between neutral and said one side of the line when said selector switch is set for a heat-cleaning operation.

Claim 11

The combination set out in claim 7 wherein: said voltage divider means includes a relatively high-value impedance means.