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US 4,781,169 AGranted
Oven with radiant panel
AssigneeLincoln Foodservice Products, Inc.
InventorsMitchell C. Henke, Carol S. Nealley, Effie J. Lee, Daniel S. Kaminski
Life of this patent
Estimating the term…
Abstract
A food preparation oven comprising a plurality of radiant panel ducts which include apertures for directing streams of heated air toward a food product within the heating chamber. The radiant panels are made of highly thermal conductive aluminum and the outer surfaces thereof facing the food product are of a black color so as to radiate infrared energy toward the food product.
Claims33
A food preparation oven comprising:
- an enclosure defining a chamber for receiving a food product therein,
- support means for supporting a food product in said chamber,
- means for producing a moving mass of heated air, and
- a duct connected to said means for producing, said duct having a thermally conductive wall with an outer radiant energy emissive surface means for radiating infrared energy toward said support means when said wall is heated, said wall having a plurality of apertures therein facing toward said support means,
- said duct including means therein for conveying heated air from said means for producing over an inner surface of said wall to thereby heat the wall and then conveying the heated air towards and through said apertures toward said support means.
2 more elements
A food preparation oven comprising:
- an enclosure defining a chamber for receiving a food product therein,
- support means for supporting a food product in said chamber,
- means for producing a moving mass of heated air, and
- a combination convection and radiant energy duct means in said chamber connected to said means for producing a moving mass of heated air for conveying a stream of the heated air in said duct means, said duct means including radiator means having aperture means therein directed toward said support means for directing heated air onto a food product supported on said support means, said radiator means having an infrared emissive outer surface and an imperforate inner surface in contact with the stream of air in said duct means for absorbing heat from the stream of air in the duct means as it sweeps past said imperforate inner surface and radiating heat from said emissive surface toward a food product on the support means.
1 more element
A food preparation oven comprising:
- an enclosure defining a chamber for receiving a food product therein,
- support means for supporting a food product in said chamber,
- an air plenum and means connected thereto for producing heated moving air in said plenum, said plenum including an inlet for receiving return air from said chamber and an outlet,
- a duct having an inlet-connected to said plenum outlet and a plurality of outlet openings directed toward said support means,
- said duct including a radiant panel including a radiant energy section that is imperforate, said panel having an inner surface in said duct and an outer surface facing said support means, said outer surface being infrared emissive, said duct further including means therein for causing heated air in said duct to impinge on said inner surface in a direction generally normal to said inner surface and sweep over said inner surface and then flow out of said outlet openings in a direction toward said support means, whereby the impingement on and sweeping of the air over said inner surface produces heat,that is transmitted fromt he inner to the outer surface thereby causing the outer surface to emit infrared radiation.
2 more elements
A food preparation oven comprising:
- an enclosure defining a chamber for receiving a food product therein,
- support means for supporting a food product in said chamber,
- means for producing a moving mass of heated air,
- a plurality of ducts in said chamber positioned one of below and above said support means, said ducts being connected to said means for producing,
- each of said ducts having a thermally conductive wall with an outer radiant energy emissive surface means for radiating infrared energy toward said support means when said wall is heated, said wall having a plurality of apertures therein facing toward said support means, said duct including means therein for conveying heated air from said means for producing over an inner surface of said wall to thereby heat the wall and then conveying the heated air towards and through said apertures toward said support means, and
- means on the opposite side of said support means and said ducts for blowing heated air toward said support means.
3 more elements
Dependencies are inferred from the claim text.