73595846
Apr 28, 1986
Sep 8, 1987
ELECTRIC CONTROLS FOR FURNACES, NAMELY - FLUIDIZED FURNACE BED SUPERVISORY SYSTEM, WHICH SYSTEM IS SOLD AS A UNIT AND COMPRISES A COMMAND INITIATIVE UNIT; DECISION MAKING LOGIC SUPERVISING SOLID FUEL DELIVERY SYSTEM COMPRISING IGNITOR TRANSFORMERS, FUEL VALVE DRIVES, AIR DAMPER DRIVES AND FAN AND BLOWER MOTOR STARTERS; AND PRIMARY SENSING ELEMENTS, NAMELY - COMBUSTION CHAMBER THERMOCOUPLES, PROCESS THERMOCOUPLES, LIMIT SWITCHES, PRESSURE SENSORS, FLOW DETECTORS, LEVEL SENSORS AND LOSS-OF-POWER SENSORS
Electrical and Scientific Apparatus