Shipping container for liquids

Claim 1

A SHIPPING CONTAINER COMPRISING A ONE-PIECE SEAMLESS BOTTLE COMPOSED OF A FLEXIBLE RESILIENT THEREMOPLASTIC MATERIAL AND A PAPERBOARD BOX IN WHICH SAID BOTTLE FITS, SAID BOTTLE HAVING THIN FLEXIBLE BOTTOM AND UPRIGHT WALLS, A TOP WALL PROVIDED WITH A TAPERING UPWARDLY PROJECTING NECK AND A SUBSTANTIALLY FLAT PORTION THAT IS THIN AND FLEXIBLE AND THAT SURROUNDS THE LOWER END OF SAID NECK, SAID NECK HAVING A FLEXIBLE PORTION THAT IS INTEGRAL WITH AND THAT TAPERS UPWARDLY FROM SAID FLAT PORTION AND THAT TERMINATES AT ITS UPPER END IN A RELATIVELY RIGID TUBULAR OUTLET, SAID FLEXIBLE PORTION OF SAID NECK HAVING AN UPPER PORTION LESS STEEPLY INCLINED THAN ITS LOWER PORTION AND FORMING A SHOULDER SURROUNDING SAID OUTLET, FLUID TIGHT TATES INWARDLY BENDING ADJACENT SAID OUTLET, A FLUID TIGHT CLOSING AND SEALING MEANS FOR SAID OUTLET WHICH SERVES TO TRAP AIR IN SIAD BOTTLE PROVIDE RESISTANCE TO COLLAPSE OF SAID MARGINAL PORTIONS OF THE TOP WALL SO THAT DOWNWARD PRESSURE EXERTED ON SAID OUTLET CAUSES SAID FLEXIBLE TAPERED PORTION TO BEND INWARDLY AROUND THE BASE OF SAID OUTLET AND TO COLLAPSE TO A REVERSE REENTRANT POSITION WITH RESPECT TO SAID FLAT SURROUNDING PORTION OF THE TOP WALL WHERE IT FORMS THE ANNULAR WALL OF A DOWNWARDLY TAPERING RECESS AND SUPPORTS SAID OUTLET IN A LOWERED POSITION BELOW THE LEVEL OF SAID SURROUNDING PORTION OF THE TOP WALL, AN ANNULAR CREASE BEING PROVIDED AT THE JUNCTURE OF THE LOWER END OF THE NECK WITH THE SURROUNDING PORTION OF THE TOP WALL WHICH PERMITS LIMITED RADIAL EXPANSION OF THE BASE PORTION OF SAID NECK AND REDUCES THE DISTORTION OF THE NECK DURING MOVEMENT OF THE NECK FROM ITS EXTENDED TO ITS COLLAPSED POSITION OR FROM ITS COLLAPSED POSITION TO ITS EXTENDED POSTION, SID BOX HAVING A TOP CLOSURE WALL THAT IS SECURED IN POSITION OVER THE TOP OF A FILLED BOTTLE THAT HAS ITS NECK COLLAPSED INTO ITS TOP WALL, SAID CLOSURE WALL HAVING A SEPARATE PORTION THAT CAN BE REMOVED TO PROVIDE AN OPENING THAT REGISTERS WITH THE COLLAPSED BOT TLE NECK AND THROUGH WHICH SAID NECK MAY BE EXTENDED.