Combination pressure and temperature control

Claim 1

A COMBINATION CONTROL COMPRISING: AN INLET FOR CONNECTION WITH A FUEL SOURCE, AN OUTLET FOR CONNECTION WITH A FUEL BURNER, A MAIN PASSAGE AND A BLEED LINE BETWEEN THE INLET AND THE OUTLET, A THERMAL ELEMENT OPERATIVE TO EXPAND AND CONTRACT IN RESPONSE TO VARIATIONS IN TEMPERATURE AT THE REGION HEATED BY THE BURNER, A CONTROL VALVE MOVABLE TO OPEN AND CLOSE THE BLEED LINE, A PRESSURE REGULATOR IN THE BLEED LINE FOR CONTROLLING THE RATE OF FLOW THROUGH THE BLEED LINE WHEN THE BLEED LINE IS OPENED BY THE CONTROL VALVE ELEMENT INCLUDING A PRESSURE RESPONSIVE MOVABLE WALL EXPOSED TO THE ATMOSPHERE ON ONE SIDE AND TO THE BLEED LINE PRESSURE ON ITS OTHER SIDE, SAID CONTROL VALVE BEING POSITION BETWEEN SAID INLET AND SAID REGULATOR, LEVER MEANS CONNECTED BETWEEN THE PRESSURE REGULATOR AND THERMAL ELEMENT OPERATIVE TO PROPORTIONALLY ADJUST THE PRESSURE REGULATOR IN ACCORDANCE WITH TEMPERATURE VARIATIONS, SNAP ACTING MECHANISM CONNECTING THE CONTROL VALVE WITH THE LEVER MEANS OPERATIVE TO ACTUATE THE CONTROL VALVE IN RESPONSE TO CONTRACTION AND EXPANSION OF THE THERMAL ELEMENT, AND A PRESSURE SENSITIVE MODULATING VALVE OPERATIVELY CONNECTED TO SENSE THE BLEED LINE PRESSURE AND CONTROL THE RATE OF FLOW THROUGH THE MAIN PASSAGE IN ACCORDANCE WITH THE RATE OF FLOW IN THE BLEED LINE.