Dual mode convection oven

Details Dual mode convection oven Dual mode convection oven

1996-11-18

2000-09-12

Ferensic, Denise L.

Heating

Advancing structure flexing, looping or coiling sheet, web...

432 8, 432 48, 432 72, 432120, F27B 928

Patent

active

061168955

ABSTRACT:
A method and apparatus for selectively providing convective heat to an object with a dual mode convection oven that is alternatively operable in either a running mode or a bypass mode. Convective heat is channelled into a supply hood through a supply duct. Convective heat is also channelled out of a suction hood through a return duct. An operating mode for the convection oven is selected. If the selected operating mode is the running mode, then convective heat is applied to the object by channelling the convective heat from the supply hood through a heat application zone and into the suction hood, the heat application zone being positioned between the supply hood and the suction hood. If the selected operating mode is the bypass mode, then convective heat is channelled away from the heat application zone by directing the convective heat from the supply hood through a bypass duct and into the suction hood, the bypass duct having a first end coupled to the supply hood and a second end coupled to the suction hood.

REFERENCES:
patent: 3941557 (1976-03-01), Buchner
patent: 4115052 (1978-09-01), Flynn
patent: 4590916 (1986-05-01), Konig
patent: 4767320 (1988-08-01), Sasaki et al.

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