High speed oven using a jet of heated air

Details High speed oven using a jet of heated air High speed oven using a jet of heated air

1998-01-29

1999-07-27

Leung, Philip H.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219681, 219682, 219401, 126 21A, H05B 680, F24C 1532

Patent

active

059285419

ABSTRACT:
A heating apparatus of the present invention relates to a high speed oven having a turntable mechanism for heating food products by utilizing a combination of jet impingement of heated air (a jet impingement) and microwaves or either of them, the apparatus comprising a safety device and an exhaust device. This invention has the following configurations: a turntable mechanism for enabling the turntable to be preferably rotated, the turntable including openings at the central part thereof so that the heated air and microwaves can pass therethrough; a limiter mechanism for removing overload imposed on the turntable by utilizing only a mechanical operation; an apparatus provided with scarfed areas on upper and lower boards of the heating chamber so that the food products can be baked uniformly even when utilizing a jet impingement technique; a fan guard comprising a switch activation device for activating a switch for allowing a generation of the heated air, which switch is positioned at the outside of the heating chamber, only when the fan guard is fixed to the heating chamber; a heating apparatus which simplifies operations for connecting exhaust tubes upon a number of apparatuses being stacked on each other; and a turntable driving mechanism for preventing contaminants from flowing into a gap between a connecting shaft and an axis receptor.

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