System for applying a heat shrinkable sleeve to a container

Details System for applying a heat shrinkable sleeve to a container System for applying a heat shrinkable sleeve to a container

1991-11-19

1995-02-21

Coan, James F.

Package making

Apparatus for contraction of cover by stretching or shrinking

By heat shrinking

53585, 53216, 414153, B65B 5302

Patent

active

053904770

ABSTRACT:
A system for applying a heat-shrinkable sleeve or label to a container such as a vial for pharmaceuticals includes a novel heat tunnel assembly. The heat tunnel assembly, in a preferred embodiment, includes a conveyor for moving the sleeved containers past a heat source. The conveyor has a plurality of rollers upon which the sleeved containers are supported and rotated. The rollers turn at a first rate during initial shrinkage of the sleeve, and at a second, slower, rate after the initial shrinkage has occurred to reduce distortion and unwanted displacement of the label during its application. The heat tunnel assembly also includes a system for withdrawing the heat source from the vicinity of the conveyor should unexpected circumstances arise.

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