Method and apparatus for applying controlled heat to a group of

Details Method and apparatus for applying controlled heat to a group of Method and apparatus for applying controlled heat to a group of

1985-10-15

1986-07-01

Sipos, John

Package making

Apparatus for contraction of cover by stretching or shrinking

By heat shrinking

34225, B65B 5306

Patent

active

045972478

ABSTRACT:
For applying heat to groups of articles disposed within a wrapper of shrink film whose ends are overlapped and disposed below the articles, a tunnel is provided including a conveyor through the tunnel having air passages therethrough and on which the groups of articles are disposed while being moved through the tunnel, a heater disposed below the conveyor, a primary fan for driving air through the heater and into a conduit which directs heated air through the passages in the conveyor and directly to the overlapped ends of the wrapper together with a fan and conduit for directing heated air at a lower temperature to the ends and sides of the groups of articles.

REFERENCES:
patent: 3120728 (1964-02-01), Snow
patent: 3187441 (1965-06-01), Kamp
patent: 3222800 (1965-12-01), Siegel
patent: 3309835 (1967-03-01), Peppler
patent: 3619910 (1971-11-01), Carmichael
patent: 3621588 (1971-11-01), Grocke
patent: 3744146 (1973-07-01), Nichols
patent: 3782070 (1974-01-01), Erlandson
patent: 4014107 (1977-03-01), Bachrich

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