Ejector dispenser and fitment for puncture of hermetically sealed product container

Claim 1

A DISPENSER, FOR USE IN DISCHARGING CONTENTS OF A HERMETICALLY SEALED PRODUCT CONTAINER, COMPRISING A PROPELLANT CONTAINER HAVING AN OPEN TOP, A HEAD STRUCTURE JOINED TO SAID PROPELLANT CONTAINER TO CLOSE ITS OPEN TOP, SAID HEAD STRUCTURE COMPRISING (A) A DISCHARGE EJECTOR, (B) SEPARATE PASSAGES ESTABLISHING FLOW LINES TO THE DISCHARGE EJECTOR FROM THE LOWER END OF SAID HEAD STRUCTURE WITHIN THE AREA OF THE OPEN TOP OF SAID PROPELLANT CONTAINER, ONE OF SAID LINES BEING IN OPEN COMMUNICATION AT ITS LOWER END WITH SAID PROPELLANT CONTAINER TO PERMIT PROPELLANT FLOW THERETHROUGH, AND (C) MANUALLY OPERABLE VALVE MEANS FOR SAID PROPELLANT FLOW LINE, A PRODUCT FLOW LINE WITHIN THE PROPELLANT CONTAINER BEING IN OPEN COMMUNICATION AT ITS UPPER END WITH THE OTHER FLOW LINE IN THE HEAD STRUCTURE AND AT ITS LOWER END EXTENDING THROUGH THE WALL OF THE PROPELLANT CONTAINER AND A HOLLOW NEEDLE-LIKE MEMBER SUITABLE FOR PIERCING A HERMETICALLY SEALED PRODUCT CONTAINER ATTACHED TO THE PROPELLANT CONTAINER IN A MANNER SUCH THAT ONE END OF THE HOLLOW NEEDLE-LIKE MEMBER IS IN OPEN COMMUNICATION WITH THE PRODUCT FLOW LINE AT THE PLACE WHERE IT EMERGES FROM THE PROPELLANT CONTAINER.