초록 ▼

A sealable package for pharmaceutical and other products which will immediately reveal the presence of tampering. The package consists of a sealed envelope of thermoplastic film having a printed outline in which the sealing of the package is performed at the printed outline. After sealing, the film

A sealable package for pharmaceutical and other products which will immediately reveal the presence of tampering. The package consists of a sealed envelope of thermoplastic film having a printed outline in which the sealing of the package is performed at the printed outline. After sealing, the film is shrunk tending to inflate the sealed area because of entrapped air. Should the package be ruptured the inflation is lost. Should the package be cut at the sealed area, it is impossible to reseal the package without a visual indication caused by irregularities in the printed area.

대표청구항 ▼

As a new article of manufacture, a tamperproof package comprising: an enclosed article; a pair of flexible planar laminae, the peripheral area of which are heat-sealed to enclose said article, the heat-sealed areas having a printed pattern on the exposed surfaces thereof; said laiminae being inflate

As a new article of manufacture, a tamperproof package comprising: an enclosed article; a pair of flexible planar laminae, the peripheral area of which are heat-sealed to enclose said article, the heat-sealed areas having a printed pattern on the exposed surfaces thereof; said laiminae being inflated inwardly of said heat-sealed areas by air and trapped during a sealing operation, and further inflated by a subsequent heat-shrinking operation.