AIRESEARCH

MEASURING VENTURIS; HUMIDITY INDICATORS; AUTOMATIC CONTROL MAIN VALVE UNITS FOR REGULATING THE AIR PRESSURE IN COMPARTMENTS OF AIR-CRAFT, AND COMPONENT PARTS-NAMELY, ISOBARIC CHANGERS, CABIN ALTITUDE SELECTORS, RATE OF CHANGE SELECTORS, DIFFERENTIAL CHANGERS, DIFFERENTIAL TIMERS, JACK POSITIONED VALVES, VALVES OPERABLE AS AUXILIARIES TO MAIN UNIT, RATIO CONTROL VALVES, DIFFERENTIAL PRESSURE CONTROL VALVES, AND DIFFERENTIAL RATE OF CHANGE CONTROL VALVES; THERMOSTATIC GOVERNORS; THERMOSTATIC TEMPERATURE CONTROL VALVES; PNEUMATIC THERMOSTATS; VARIABLE AREA AIR FLOW CONTROL; DIFFERENTIAL PRESSURE CONTROL; FLOW MEASURING CONTROL; PRESSURE BREATHING DEMAND REGULATORS; OIL TEMPERATURE REGULATORS; FLOATING CONTROL THERMOSTATS; OIL DIVERTER THERMOSTATS; TEST STANDS FOR TESTING PNEUMATIC AND ELECTRICAL DEVICES; ELECTRONIC CABIN TEMPERATURE REGULATORS; ELECTRONIC COMPUTERS; FLUID PRESSURE RESPONSIVE TRANSDUCERS; ACCELEROMETER POTENTIOMETERS; AND ELEVATION COMPUTERS