Method and apparatus for inserting a core packaging layer into a

Details Method and apparatus for inserting a core packaging layer into a Method and apparatus for inserting a core packaging layer into a

1994-03-14

1995-05-09

Coan, James F.

Package making

Methods

Enclosing contents within progressively formed web means

156249, 156344, 493374, 493381, 53425, 53553, 53555, B65B 900, B65B 5502

Patent

active

054129257

ABSTRACT:
A product required to be kept in a clean environment is packaged by removing outer layers of a multi-layer film and immediately thereafter introducing its inner core sheet inside a clean room. A bag with an opening is produced inside the clean room by superposing and sealing together two of such core sheets, by splitting one core sheet into two sub-layers and superposing and sealing together these two sub-layers or by folding one core sheet and superposing and sealing together its folded parts. The product may be packaged in such a bag either by using the same apparatus which makes the bag or by using another apparatus. The bag is made of a multi-layered material, and its outer layer is peeled off immediately before it is put inside a clean room to be torn apart and to have the produce taken out. Hollow wedges having air holes may be used to peel off outer layers from the core sheet while causing air to be emitted outward through these holes in order to prevent the core sheet from splitting while preventing both the outer layers and the core sheet from rubbing against the wedge surfaces. Such a hollow wedge may also be used for splitting a core sheet into two sub-layers.

REFERENCES:
patent: 4160852 (1979-07-01), Torterotot
patent: 5194109 (1993-03-01), Yamada
patent: 5358591 (1994-10-01), Candore

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