Valve mechanism with metering ball for aerosol pressure containers

Claim 1

A DISPENSING APPARATUS FOR PRESSURE PACKED FLUIDS COMPRISING: A VALVE HOUSING WITH A CHAMBER IN ITS UPPER PORTION AND A BORE THROUGH ITS LOWER PORTION AND PROVIDED AT ITS LOWER END WITH A DEPENDING EDUCATION TUBE WITH A METERING BALL DISPOSED WITHIN AND LONGITUDINALLY MOVABLE WITHIN SAID TUBE, IN COMBINATION WITH A VALVE CORE PROVIDED WITH AN UPSTANDING VALVE STEM EXTENDING TO THE EXTERIOR OF THE HOUSING AND HAVING THEREIN A DISCHARGE PASSAGE, A NORMALLY SEALED MANUALLY OPERATIVE MAIN DISCHARGE VALVE BETWEEN THE CHAMBER OF THE HOUSING AND THE PASSAGE OF THE VALVE STEM TO CONTROL DISCHARGE OF FLUID FROM SAID CHAMBER, A TUBULAR NOZZLE ON THE VALVE CORE HAVING THEREIN A PASSAGE LEADING TO SAID CHAMBER, SAID NOZZLE EXTENDING DOWNWARDLY THROUGH SAID BORE AND BEING OF SUFFICIENT LENGTH TO EXTEND BEYOND THE LOWER EDE OF SAID BORE WHEN THE VALVE CORE IS DEPRESSED TO UNSEAL THE MAIN DISCHARGE VALVE TO THEREBY PROVIDE A SEALING SEAT AT THE PROJECTED END OF THE NOZZLE WITH THE METERING BALL WHEN THE METERING BALL IS NEAR THE TOP OF THE EDUCATION TUBE AND THE LENGTH OF THE NOZZLE LIMITED SUCH THAT IT IS RETRACTABLE WITHIN THE BORE WHEN THE MAIN DISCHARGE VALVE IS SEALED.