Closed circuit shrink tunnel

Details Closed circuit shrink tunnel Closed circuit shrink tunnel

1978-09-05

1980-05-27

McGehee, Travis S.

Package making

With contents treating

Vacuum or inert atmosphere

34 92, 53557, B65B 3102, B65B 5306

Patent

active

042043794

ABSTRACT:
A shrink tunnel for use in shrink packaging of articles with shrinkable films comprises a gaseous return flow, having a working section along which gas passes from an inlet to an outlet in a substantially rectilinier direction, and a return section around which the gas is recirculated for heat and velocity boosting prior to the next cycle through the working section.

REFERENCES:
patent: 3010216 (1961-11-01), Ravet
patent: 3309835 (1967-03-01), Peppler
patent: 4164111 (1979-08-01), Di Bernardo

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