Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Reexamination Certificate
2005-08-23
2005-08-23
Pelham, Joseph (Department: 3742)
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
C126S02100R, C099S476000
Reexamination Certificate
active
06933472
ABSTRACT:
An electric convection oven is provided wherein a squirrel cage fan is used to circulate air through a circular bank of heating coils surrounding the fan and into the oven. The coils wrap around the fan and are spaced from each other so that air from the fan will pass through the coils and into the oven. The fan is provided with a concave centrally located plate for drawing air from within the oven into the fan for recirculation through the heating coils and to return to the oven.
REFERENCES:
patent: 4395233 (1983-07-01), Smith et al.
patent: 4516012 (1985-05-01), Smith et al.
patent: 4928663 (1990-05-01), Nevin et al.
patent: 5497760 (1996-03-01), Alden et al.
patent: 6188045 (2001-02-01), Hansen et al.
Shangraw David
Smith Robert L.
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