Chain of open mouth bags
AssigneeBasic Packaging Systems, Inc.
InventorOliver R. Titchenal
Life of this patent
Estimating the term…
Abstract
A continuous strip covering the open mouth end of bags connects successive bags in a chain of bags. The strip is activatable relative to the bags to constitute adhesive for sealing the bags when they are filled and closed.
Claims16
In a chain of bags having front and back walls and top edges thereof defining mouths and with the bags interconnected along the mouths thereof by first and second elongated continuous strips separate from the bags themselves, the provision of:
- means attaching one edge of said second strip to said top edge of said back wall of each successive bag and attaching one edge of said first strip to said top edge of said front wall of said successive bags;
- each said bag having said back wall thereof extended beyond said front wall thereof at the mouth end thereof and being folded along a line parallel to said strips to lie adjacent said front wall and positioning at least a portion of said first strip between the inside surface of said back wall and the outside surface of said front wall;
- and
- at least said first strip being of activatable material such that said first strip adhesively and sealably unites said back wall to said front wall to closingly seal the respective bag.
A chain of bags, comprising, in combination:
- first and second walls on each of said bags and a top edge on each of said walls;
- at least one continuous strip of thermoplastic material having first and second edges;
- said walls having a given composition and said at least one continuous strip being of material different from the composition of said walls;
- means securing said first edge of said at least one strip to said top edge of said first wall and securing said second edge of said at least one strip to said top edge of said second wall for initial alignment means near the top of said chain of bags;
- each of said bags having a mouth near the top of each bag;
- each said bag being folded along a longitudinal line substantially parallel to said at least one continuous strip to trap said portion of at least one strip between the top edges of said first and second walls;
- and
- said portion of said at least one strip being activated to adhesively and sealably unite said first and second walls to closingly seal the mouth of the bag.
A chain of bags as set forth in claim 11, wherein each said bag is folded along a longitudinal line in the area of securement of said first edge of said at least one strip to the respective bag wall top edge so as to trap said portion of said at least one strip between the top edges of said walls.
In a bag having first and second walls and top edges thereof defining a mouth, the provision of:
- first and second elongated strips separate from said bag;
- means attaching one edge of said first strip to said top edge of said first wall of the bag and attaching one edge of said second strip to said top edge of said second wall;
- said bag having said second wall thereof extended beyond said first wall thereof at the mouth end thereof and being folded along a line parallel to said strips to lie adjacent said first wall, thereby positioning at least a portion of said first strip between the inside surface of said second wall and the outside surface of said first wall;
- and
- at least said first strip being of activatable material such that said portion of said first strip adhesively and sealably unites said first and second walls to closingly seal the bag.
In a chain of bags having first and second walls and top edges thereof defining mouths, the provision of:
- first and second elongated strips separate from said bags;
- means attaching one edge of said first strip to said top edge of said first wall of each successive bag and attaching one edge of said second strip to said top edge of said second wall of said successive bags;
- each said bag having said second wall thereof extended beyond said first wall thereof at the mouth end thereof and being folded along a line parallel to said strips to lie adjacent said first wall, thereby positioning at least a portion of said first strip between the inside surface of said second wall and the outside surface of said first wall;
- and
- at least said first strip being of activatable material such that said portion of said first strip adhesively and sealably unites said first and second walls to closingly seal the respective bag.
Dependencies are inferred from the claim text.