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US 10,119,708 B2Granted
Oven with automatic open/closed system mode control
AssigneeAlto-Shaam, Inc.
InventorsJanus Bartelick, J. K. Raghavan, Steve Maahs
Life of this patent
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Abstract
A commercial oven, such as a combination oven providing steam and convection heating, may provide for motorized dampers allowing the oven to move automatically between a closed-state high humidity operating mode and an open-state low humidity operating mode according to user input reflecting a desired cooking process. The dampers operate with a conventional steam trap and may provide integrated bypass valves preventing over or under pressure of the cooking volume.
Claims18
A food cooking oven comprising:
- an insulated housing including a door closing to define an interior cooking volume in a substantially sealed first state and opening to provide access to the cooking volume in a substantially unsealed second state;
- a heater communicating with the cooking volume to heat the cooking volume;
- a steam generator generating steam from a source of introduced water, being electronically actuable to receive a signal controlling a generation of steam;
- a first damper positioned between the interior cooking volume and exterior atmosphere, and in the substantially sealed first state being electronically actuable to receive a signal controlling an opening of the damper to allow water vapor flow between the interior cooking volume and exterior atmosphere and providing a pressure-activated bypass allowing flow of water vapor between the interior cooking volume and the exterior atmosphere when a predetermined pressure difference between the cooking volume and the exterior atmosphere is reached;
- and
- an electronic computer executing a program stored in memory to vary the signal to the damper according to user-entered data and to vary the signal to the steam generator according to user-entered data.
3 more elements
Dependencies are inferred from the claim text.