Packaging system with interdigitating film advance

Details Packaging system with interdigitating film advance Packaging system with interdigitating film advance

1984-05-23

1986-01-28

Culver, Horace M.

Package making

Methods

Enclosing contents within progressively formed web means

53551, 53389, 226 88, B65B 910, B65B 4112

Patent

active

045662533

ABSTRACT:
A packaging apparatus for bulk material is disclosed having a former transforming packaging film into a tube, interdigitating means engaging and advancing the film over the former, delivery means for providing a charge of material or product to the package at the bottom of the tube and sealing and cutting jaws to complete the package. The interdigitating means for feeding the new length of material includes idler rollers mounted on support arms. The rollers engage the sides of the tube, flatten the tube and upon continued movement form an elongated zig-zag path to provide the next package length. Before feeding the film F, stripping action can be initiated by initial film feed movement. An upstream brake is engaged to hold the film during the stripping action and released during the film feeding action. Springs on the upper and lower rollers assure alignment of the film and prevent over stressing of the tube.

REFERENCES:
patent: 3364293 (1968-01-01), Culpin
patent: 4040237 (1977-08-01), O'Brien

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