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Claim 1

AN ADJUSTABLE LIQUID DISPENSER FITMENT FOR USE WITH A LIQUID CONTAINING FLEXIBLE CONTAINER HAVING A DISCHARGE END COMPRISING A HOLLOW CAP ELEMENT OPEN AT BOTH ENDS AND ADAPTED TO HAVE ONE OF SAID ENDS SEALABLY CONNECTED TO THE DISCHARGE END OF SAID CONTAINER, A NOZZLE ELEMENT HAVING A DISCHARGE ORIFICE ROTATABLY MOUNTED TO THE OTHER END OF SAID CAP ELEMENT, A FLEXIBLE DIAPHRAGM MOUNTED TRANSVERSELY ACROSS SAID CAP AND ADJACENT TO SAID OTHER END THEREOF, SAID DIAPHRAGM HAVING A MOVABLE PORTION ADAPTED TO BE RESPONSIVE TO INCREASE IN PRESSURE WITHIN SAID CONTAINER, A GENERALLY TUBULAR PLUNGER HAVING A BORE THERETHROUGH AND HAVING ONE END FIXED TO THE DIAPHRAGM MOVABLE PORTION FOR AXIALLY MOVING THE OTHER END OF SAID PLUNGER TOWARD SAID NOZZLE ELEMENT IN RESPONSE TO INCREASE IN PRESSURE WITHIN SAID CONTAINER, SAID DIAPHRAGM HAVING AN APERTURE THERETHROUGH COMMUNICATING WITH THE BORE OF SAID TUBULAR PLUNGER FOR DEFINING A LIQUID PASSAGE BETWEEN THE ORIFICE IN SAID NOZZLE ELEMENT AND SAID ONE END OF SAID CAP ELEMENT, SAID PLUNGER HAVING A PLURALITY OF SERIES OF STEP SURFACES IN ITS OUTER WALL, CORRESPONDING STEP SURFACES OF EACH SERIES LYING AT PREDETERMINED DISTANCES FROM THE OTHER END OF SAID PLUNGER, EACH OF SAID SERIES OF STEP SURFACES DISPOSED EQUALLY ABOUT THE CIRCUMFERENCE OF SAID PLUNGER WITH CORRESPONDING STEP SURFACES OF EACH SERIES LYING IN THE SAME TRANSVERSE PLANE, AND STOP MEANS MOUNTED WITHIN SAID NOZZLE ELEMENT AND COAXIAL TO SAID PLUNGER, SAID STOP MEANS HAVING A CLOSURE ROD AXIALLY ALIGNED WITH SAID PLUNGER AND ADAPTED TO BE SLIDABLY RECEIVED WITHIN THE BORE OF SAID PLUNGER DURING MOVEMENT OF SAID DIAPHRAGM, SAID STOP MEANS HAVING A PLURALITY OF ARMS EXTENDING RADIALLY OUTWARDLY FROM AND SPACED EQUIDISTANT ABOUT SAID CLOSURE ROD, EACH OF SAID ARMS HAVING A PORTION OF THE EDGE FACING SAID PLUNGER TRANSVERSELY ALIGNED AND BEING AXIALLY ALIGNED FOR ENGAGING A CORRESPONDING STEP SURFACE, SAID ARMS BEING ADAPTED TO BE DISPOSED IN AXIALLY OPPOSED SPACED RELATION TO SELECTED CORRESPONDING STEP SURFACES FOR SELECTABLY DETERMINING THE MOVEMENT OF SAID DIAPHRAGM MOVABLE PORTION IN RESPONSE TO INCREASE IN PRESSURE WITHIN SAID CONTAINER, SAID NOZZLE ELEMENT ADAPTED TO RECEIVE A MEASURED AMOUNT OF LIQUID WHEN THE CONTAINER IS INVERTED, SAID CLOSURE ROD CLOSING SAID LIQUID PASSAGE TO ISOLATE THE INTERIOR OF SAID CONTAINER AND THE DISCHARGE ORIFICE OF SAID NOZZLE IN RESPONSE TO INITIAL MOVEMENT OF SAID PLUNGER, SAID LIQUID PASSAGE REMAINING BLOCKED WHILE SAID DIAPHRAGM DEFORMS TO EJECT LIQUID FROM SAID DISCHARGE ORIFICE SO THAT THE QUANTITY OF THE LIQUID CONTENT OF SAID NOZZLE ELEMENT TO BE DISPENSED FROM SAID DISCHARGE OPENING MAY BE ADJUSTABLY DETERMINED.