Pressure controller with push button set means

Claim 1

IN A FLUID SUPPLY SYSTEM HAVING A SOURCE OF FLUID AT AN ELEVATED PRESSURE, AND HAVING A PRESSURE CONTROLLER WITH AN INPUT COUPLED TO SAID SOURCE AND AN OUTPUT TO PROVIDE FLUID AT A SELECTED PRESSURE, AND HAVING A ROTATABLE CONTROL MEMBER COUPLED TO THE CONTROLLER TO PROVIDE A LEVEL OF PRESSURE AT THE OUTPUT CORRESPONDING TO A ROTATIONAL POSITION OF SAID CONTROL MEMBER, THE COUPLING OF SAID CONTROL MEMBER TO SAID CONTROLLER BEING DIRECT ACTING WHEREBY INCREASING DEGREES OF ROTATION OF SAID CONTROL MEMBER IN ONE DIRECTION WITH RESPECT TO A REFERENCE POSITION CAUSE INCREASING LEVELS OF PRESSURE AT SAID OUTPUT, SAID LEVELS INCREASING BETWEEN ONE LEVEL WHEN THE CONTROL MEMBER IS AT THE REFERENCE POSITION AND ANOTHER LEVEL WHEN THE CONTROL MEMBER IS AT A SECOND POSITION A PREDETERMINED NUMBER OF DEGREES FROM THE REFERENCE POSITION, A PLURALITY OF PUSH-BUTTON MEANS, AND AN ADJUSTABLE BAR NORMALLY AFFIXED TO EACH OF SAID MEANS AND SEPARATELY ENGAGEABLE WITH SAID CONTROL MEMBER BY ACTUATION OF SAID MEANS, THE ATTITUDES OF VARIOUS ONES OF SAID BARS WITH RESPECT TO SAID MEMBER DIFFERING, WHEREBY ENGAGEMENT OF SAID MEMBER BY SAID BARS NONSIMULTANEOUSLY IS EFFECTIVE TO PLACE SAID MEMBER IN VARIOUS ROTATIONAL POSITIONS BETWEEN SAID REFERENCE POSITION AND SAID SECOND POSITION TO PROVIDE A LEVEL OF PRESSURE BETWEEN SAID ONE LEVEL AND SAID ANOTHER LEVEL AT THE OUTPUT, THE LEVEL THEREBY PROVIDED AT THE OUTPUT BEING DETERMINED BY THE INDIVIDUAL ONE OF SAID PUSH-BUTTON MEANS WHICH IS ACTUATED.