Foods and beverages: apparatus – Subjecting food to an enclosed modified atmosphere – Automatic control or time means
Patent
1988-11-29
1990-08-21
Simone, Timothy F.
Foods and beverages: apparatus
Subjecting food to an enclosed modified atmosphere
Automatic control or time means
34 10, 34 57R, 993237, 99331, 99483, A47J 3142, A47J 4252, F26B 308, F26B 908
Patent
active
049496328
ABSTRACT:
A circuit permits of monitoring the temperature and the color of coffee in the drums of roasting equipment, and controlling the flow of hot air with dampers operated in pairs by respective stepping motors. The dampers are moved through a succession of proportioning positions in a definite sequence of two stages; an initial, continuous movement that approximates to the thermal transition required, followed by a series of discrete steps producing a fine adjustment; thus it becomes possible to ensure that the set pre-roast and roast temperatures are reached in the drums at the prescribed moment in time.
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Officine Vittoria S.p.A.
Simone Timothy F.
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