Package encased in plastic sheet material and method of making the same

Claim 1

A PACKAGE COMPRISING PACKAGE CONTENTS AND A WRAPPING IN THE FORM OF A RELATIVELY THIN SHEET OF THERMOPLASTIC MATERIAL SECURED THEREAROUND WITH EDGES OF THE THERMOPLASTIC MATERIAL IN OVERLAPPING RELATIONSHIP, SAID OVERLAPPING PORTIONS HAVING A PLURALITY OF PROXIMATELY POSITIONED APERTURES EXTENDING THROUGH BOTH LAYERS OF THE MATERIAL IN REGISTRY WITH EACH OTHER AND PROVIDING COMMUNICATION BETWEEN THE ATMOSPHERE AND THE INSIDE OF THE PACKAGE AND THE LAYERS BEING FUSED TOGETHER IMMEDIATELY AROUND THE EDGES OF THE APERTURES WHEREBY THE OVERLAPPING PORTIONS ARE ATTACHED TOGETHER.

Claim 3

THE METHOD OF MAKING A PACKAGE WHICH COMPRISES FIRST WRAPPING A RELATIVELY THIN SHEET OF THERMOPLASTIC MATERIAL AROUND THE PACKAGE CONTENTS WITH THE LONGITUDINAL EDGES IN OVERLAPPING RELATIONSHIP AND WITH THE ENDS OF THE MATERIAL PROTRUDING BEYOND THE TWO ENDS OF THE PACKAGE, THEN SUBJECTING THE OVERLAPPING PORTIONS OF THE THERMOPLASTIC MATERIAL TO HEAT ABOVE THE FUSING POINT THEREOF AT A PLURALITY OF POINTS SO AS TO FORM A PLURALITY OF APERTURES EXTENDING THROUGH BOTH LAYERS, NEXT PERMITTING THE FUSED PORTIONS OF THE THERMOPLASTIC MATERIAL TO COOL WHILE MAINTAINING THE APERTURES AND THEIR RESPECTIVE LAYERS IN REGISTRY WITH EACH OTHER SO THAT THE LAYERS OF THERMOPLASTIC MATERIAL BECOME FUSED TOGETHER AROUND THE EDGES OF THE APERTURES, AND FINALLY TWISTING THE PROTRUDING ENDS OF THE THERMOPLASTIC MATERIAL SO AS TO DRAW THE MATERIAL INWARDLY AGAINST THE ENDS OF THE PACKAGE AND THEREBY CLOSE THE PACKAGE WHILE AT THE SAME TIME LEAVING THE APERTURES UNOBSTRUCTED TO PERMIT THE AIR TO ESCAPE THERETHROUGH WHILE THE ENDS ARE BEING CLOSED.

Claim 4

THE METHOD OF MAKING A PACKAGE WHICH COMPRISES FIRST WRAPPING A RELATIVELY THIN SHEET OF THERMOPLASTIC MATERIAL AROUND THE PACKAGE CONTENTS WITH THE LONGITUDINAL EDGES IN OVERLAPPING RELATIONSHIP AND WITH THE ENDS OF THE MATERIAL PROTRUDING BEYOND THE TWO ENDS OF THE PACKAGE, THEN SUBJECTING THE OVERLAPPING PORTIONS OF THE THERMOPLASTIC MATERIAL TO HEAT ABOVE THE FUSING POINT THEREOF AT A PLURALITY OF POINTS SO AS TO FORM A PLURALITY OF APERTURES EXTENDING THROUGH BOTH LAYERS, NEXT PERMITTING THE FUSED PORTIONS OF THE THERMOPLASTIC MATERIAL TO COOL WHILE MAINTAINING THE APERTURES AND THEIR RESPECTIVE LAYERS IN REGISTRY WITH EACH OTHER SO THAT THE LAYERS OF THERMOPLASTIC MATERIAL BECOME FUSED TOGETHER AROUND THE EDGES OF THE APERTURES, AND FINALLY TWISTING THE PROTRUDING ENDS OF THE THERMOPLASTIC MATERIAL SO AS TO DRAW THE MATERIAL INWARDLY AGAINST THE ENDS OF THE PACKAGE AND THEREBY CLOSE THE PACKAGE WHILE AT THE SAME TIME LEAVING THE APERTURES UNOBSTRUCTED TO PERMIT THE AIR TO ESCAPE THERETHROUGH WHILE THE ENDS ARE BEING CLOSED.