Container-dispenser

Claim 1

A THROW-AWAY SINGLE-DOSE CONTAINER-DISPENSER FOR DISPENSING A SINGLE METERED DOSAGE OF A FLUID MATERIAL CONTAINED THEREIN, SAID CONTAINER-DISPENSER INCLUDING IN COMBINATION: A SQUEEZABLE ONE-PIECE CONTAINER INCLUDING A THIN-WALLED SQUEEZABLE TUBULAR BODY MEMBER WITH ITS SIDES BROUGHT TOGETHER EXCLUSIVELY AT ONE END OF THE BODY MEMBER AND SEALED TOGETHER, SAID CONTAINER INCLUDING ALSO A THICK-WALLED NECK MEMBER INTEGRAL WITH THE OTHER END OF SAID BODY MEMBER, SAID NECK MEMBER HAVING AN AXIALLY-EXTENDING VALVE PASSAGE HAVING AN OUTER PORTION TERMINATING AT AN OUTER END FACE OF SAID NECK MEMBER AND AN INNER PORTION OPENING ON THE INTERIOR OF SAID BODY MEMBER AND TERMINATING AT AN INNER END FACE OF SAID NECK MEMBER; AND AN ELONGATED VALVE MEMBER OF AN AXIAL LENGTH GREATER THAN SAID VALVE PASSAGE, SAID VALVE MEMBER HAVING A CYLINDRICAL SMALLER-DIAMETER VALVE PORTION EXTERNALLY SIZED TO SLIDE WITH FRICTIONAL RESTRAINT IN SEALING RELATION WITHIN SAID VALVE PASSAGE, SAID VALVE MEMBER HAVING A LARGER-DIAMETER ACTUATING PORTION INTEGRAL WITH THE VALVE PORTION FOR MOVING SAID VALVE MEMBER FROM AN INITIAL OUTER VALVE-CLOSED POSITION TO AN INNER DISPENSING VALVE-OPEN POSITION, SAID ACTUATING PORTION BEING SHAPED TO IMPEDE REVERSE MANUAL ACTUATION OF SAID VALVE MEMBER TOWARD SAID VALVE-CLOSED POSITION, SAID ACTUATING PORTION BEING A HEAD MEMBER OF A DIAMETER LARGER THAN SAID VALVE PORTION AND ONLY SLIGHTLY SMALLER THAN THE DIAMETER OF SAID NECK MEMBER ADJACENT THE OUTER END FACE THEREOF, THERE BEING AN OUTWARD-EXTENDING SHOULDER AT THE JUNCTION OF SAID HEAD MEMBER AND SAID VALVE PORTION TERMINATING IN AN OUTER RELATIVELY SHARP EDGE LYING AGAINST SAID OUTER END FACE OF SAID NECK MEMBER WHEN SAID VALVE MEMBER IS IN ITS INNER VALVE-OPEN POSITION, THE TOP SURFACE OF SAID HEAD MEMBER COMPRISING A STEEP-ANGLED CONICAL UPPER SURFACE TERMINATING OUTWARDLY IN SAID OUTER SHARP EDGE AND FREE OF ANY GRASPABLE PROTRUSION THEREABOVE, SAID VALVE MEMBER HAVING A PASSAGEWAY WITHIN SAID VALVE PORTION WITH ITS UPPER END OPENING ON SAID CONICAL UPPER SURFACE AND ITS LOWER END OPENING LATERALLY WITHIN SAID VALVE PASSAGE OF SAID NECK MEMBER WHEN SAID VALVE MEMBER IS IN ITS OUTER VALVECLOSED POSITION AND OPENING LATERALLY ON THE INTERIOR OF SAID CONTAINER BELOW SAID INNER END FACE OF SAID NECK MEMBER WHEN SAID VALVE MEMBER IS IN ITS INNER VALVE-OPEN POSITION, SAID FRICTIONAL RESTRAINT ON SAID VALVE MEMBER BEING SUFFICIENT TO PREVENT OUTWARD MOVEMENT OF SAID VALVE MEMBER FROM ITS INNER VALVE-OPEN POSITION TO ITS OUTER VALVE-CLOSED POSITION AS A RESULT OF SQUEEZING SAID CONTAINER TO INCREASE THE PRESSURE THEREWITHIN SUFFICIENT TO DISPLACE SAID FLUID MATERIAL THROUGH SAID PASSAGEWAY.