Stoves and furnaces – Stoves – Cooking
Patent
1991-05-14
1993-04-27
Jones, Larry
Stoves and furnaces
Stoves
Cooking
126 21R, 432142, 99474, A21B 108
Patent
active
052052745
ABSTRACT:
A method and apparatus for heating or cooling a product which includes a plurality of tapered ducts in cabinet above and below a turntable to form streams which are directed toward the product. Spent air is drawn through intake openings in return ducts in the cabinet. Temperature controlled gas is delivered at an angle through an array of openings adjacent opposite edges of an opening through which a product is loaded on the turntable in a loading zone to cause most of the heated air to be drawn to return duct openings and to maintain internal pressure in the baking zone in the cabinet to prevent ingress and egress of air through the loading opening. Orifices are formed in a circular array of rings such that the sum of the areas of orifices in each ring spaced from the axis about which the turntable rotates is substantially equal.
REFERENCES:
patent: 4492839 (1985-01-01), Smith
patent: 4506652 (1985-03-01), Baker et al.
patent: 4753215 (1988-06-01), Kaminski et al.
patent: 4781169 (1988-11-01), Henke et al.
patent: 4924763 (1990-05-01), Bingham
patent: 5131841 (1992-07-01), Smith et al.
High Jarald E.
Plumb William W.
Smith Donald P.
Jones Larry
Patentsmith II, Inc.
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