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Low-profile multi-zone oven

  • US 10,088,173 B2
  • Filed: 02/07/2017
  • Issued: 10/02/2018
  • Est. Priority Date: 06/08/2015
  • Status: Active Grant
First Claim
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1. A multi-cavity oven comprising:

  • a housing defining an interior cooking volume surrounded by insulated outer walls and at least one door that may open and close to provide access to the interior cooking volume; and

    a set of shelves subdividing the cooking volume into cooking cavities, the shelves providing separate upper and lower air channels divided by at least one interior barrier wall, each leading from respective air inlets to respective upwardly directed airstream openings and downwardly directed airstream openings through a jet plate;

    wherein each cavity provides a separate blower circulating air from the cavity into a lower air channel of a shelf above the cavity and an upper air channel of the shelf below the cavity;

    wherein each cavity provides a separate heater and a thermal sensor; and

    further including a controller receiving a control set point and a signal from the thermal sensor to control the heaterwherein the barrier wall and jet plate intercommunicate mechanically to resist warpage of each shelf with variations in thermal expansion of the barrier wall and jet plate; and

    wherein the upper and lower air channels of each shelf are separated by a thermal resistance having an R-value of less than one.

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