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

1993-07-23

1995-12-19

Bray, W. Donald

Package making

Apparatus for contraction of cover by stretching or shrinking

By heat shrinking

53 77, 414147, 414148, 414196, B65B 5302

Patent

active

054759692

ABSTRACT:
An improved system for applying labels to pharmaceutical vials or the like includes a heating tunnel assembly having an insulated heating chamber defined by a first stationary portion and a second removable portion, with a heater positioned within the insulated heating chamber. The assembly includes movable mounting structure for mounting the second removable portion of the insulated heating chamber for movement between a first position engaged with the first stationary portion, and a second retracted position remote from said first portion. An actuator is provided for moving the second portion of the insulated heating chamber into its engaged position, while a biasing spring resiliently biases the second removable portion of the chamber toward the retracted position. As a result, the heating tunnel assembly will automatically be opened to prevent products from overheating or burning in the event of an emergency that disables the actuator.

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