Air conditioning system including humidity control sensing means

Claim 1

AN AIR CONDITIONING SYSTEM OF THE FRESH AIR INTAKE TYPE COMPRISING A FRESH AIR INTAKE, A BLOWER TO DRAW AIR THROUGH SAID INTAKE AND DISCHARGE THE SAME AFTER IT HAS BEEN CONDITIONED, COOLING MEANS BETWEEN THE INTAKE AND THE BLOWER, HEATING MEANS BETWEEN THE INTAKE AND THE COOLING MEANS, SENSING MEANS TO VARY THE TEMPERATURE OF THE AIR PASSING THE HEATING UNIT BEFORE FLOW OF SUCH AIR THROUGH THE COOLING MEANS, SAID SENSING MEANS COMPRISING A HUMIDITY SENSING DEVICE, AN ADJUSTABLE TEMPERATURE SENSING DEVICE HAVING AN ADJUSTABLE CONTROL POINT SAID TEMPERATURE SENSING DEVICE BEING POSITIONED BETWEEN SAID HEATING MEANS AND SAID COOLING MEANS, SAID HUMIDITY SENSING DEVICE BEING CONTROLLED BY VARIATIONS IN THE RELATIVE HUMIDITY OF THE AIR ENTERING THE AIR INTAKE, SAID HUMIDITY SENSING DEVICE AND SAID TEMPERATURE SENSING DEVICE BEING OF THE PNEUMATIC TYPE EACH HAVING AN AIR PRESSURE INLET TO PROVIDE A CONTROL PRESSURE, SAID HUMIDITY SENSING DEVICE HAVING A PRESSURE OUTLET, SAID TEMPERATURE SENSING DEVICE HAVING A CONTROL PRESSURE INLET CONNECTED TO SAID PRESSURE OUTLET AND ALSO HAVING A CONTROL PRESSURE OUTLET CONTROLLING THE TEMPERATURE OF SAID HEATING MEANS, WHEREBY VARIATIONS IN THE HUMIDITY SENSED BY SAID HUMIDITY SENSING DEVICE WILL CAUSE CORRESPONDING PRESSURE VARIATIONS APPLIED TO THE PRESSURE INLET OF THE TEMPERATURE SENSING DEVICE TO CHANGE THE CONTROL POINT OF SAID TEMPERATURE SENSING DEVICE FOR CORRESPONDING VARIATIONS IN THE CONTROL PRESSURE OUTLET TO CORRESPONDINGLY CHANGE THE TEMPERATURE OF THE HEATING MEANS.