Back to results
US 10,502,427 B2Granted
Gas oven with electric and gas heating elements
AssigneeWhirlpool Corporation
InventorRobert Scott Donarski
Life of this patent
Estimating the term…
Abstract
An oven has a cooking cavity and a gas heating element provided at a lower portion of the cooking cavity and a low power electric heating element provided at an upper portion of the cooking cavity. Thermal radiation provided to the upper portion by the electric heating element combined with reflected thermal radiation provided from the gas heating element is enough to broil a food item in a predetermined broiling cycle of the oven.
Claims20
An oven comprising:
- a housing defining a cooking cavity;
- a door configured to open and close to provide access to the cooking cavity;
- a gas heating element disposed only at a lower portion of the cooking cavity;
- and
- a low power electric heating element disposed only at an upper portion of the cooking cavity as a radiation system, wherein thermal radiation provided to the upper portion by the electric heating element alone is not enough to broil a food item in a predetermined broiling cycle of the oven.
2 more elements
An oven comprising:
- a housing defining a cooking cavity;
- a door configured to open and close to provide access to the cooking cavity;
- at least one gas heating element disposed at a lower portion of the cooking cavity;
- an electric heating element disposed at an upper portion of the cooking cavity;
- and
- a controller coupled to the at least one gas heating element and to the electric heating element and configured to implement a broiling cycle that includes activating the at least one gas heating element to heat air in the cooking cavity such that thermal radiation is emitted from a top portion of the housing at a broiling rate and activating the gas heating element;
- wherein the thermal radiation from the top portion of the housing and the activated electric heating element during the broiling cycle form a combined thermal radiation that provides a combined broiling rate sufficient to broil food.
4 more elements
An oven comprising:
- a housing defining a cooking cavity;
- a door configured to open and close to provide access to the cooking cavity;
- a door lock configured to selectively lock and unlock the door;
- at least one gas heating element disposed at a lower portion of the cooking cavity;
- an electric heating element disposed at an upper portion of the cooking cavity;
- and
- a controller coupled to the at least one gas heating element, the electric heating element, and the door lock;
- wherein the controller is configured to implement a broiling cycle that includes a preheating phase and a subsequent broiling phase, the preheating phase comprising activating the at least one gas heating element and the electric heating element until a temperature in the cooking cavity reaches a preheating temperature;
- wherein during the broiling phase, the controller is configured to continuously activate the electric heating element and selectively activate and deactivate the gas heating element to maintain an air temperature of the cooking cavity below a door-lock temperature at which the door lock is activated.
6 more elements
Dependencies are inferred from the claim text.