AIR-OPERATED CONTROLLER Russian patent published in 1995 - IPC

FIELD: pneumatics. SUBSTANCE: controller has a group of one-diaphragm controllers 1-3 coupled so that to define a circuit providing choice of maximum signal, and valving members 23-25 which are connected in series and the number of which is equal to the number of the one-diaphragm controllers. The outlets of the controllers are connected to flowing chambers 8,10,12 of controllers 1-3. The inlet of the letter member 25 is connected with the atmosphere. Nozzles 8,10 of controllers 1,2 are connected with their dummy chambers 7,9. Dummy chamber 11 and nozzle 21 of the later controller are connected to the atmosphere. EFFECT: improved design. 1 dwg