.~.~ Shutters, air valves, dampers or adjustable cowls {3}
41.05
.~.~.~ Temperature and engine operation responsive
DEFINITION
Classification: 123/41.05
(under subclass 41.04) Devices in which the shutters are controlled by a temperature responsive device and also include an engine responsive device, e.g., an intake or exhaust manifold pressure responsive device or an oil pressure responsive device.
(1) Note. The engine responsive device usually acts to automatically close the shutters upon stopping the engine and cooperates with the thermostat to control the shutters in response to engine temperature while the engine is in operation.
