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Bag-in-box packaging and dispensing of substances which will not readily flow by gravity

  • US 4,796,788 A
  • Filed: 08/26/1987
  • Issued: 01/10/1989
  • Est. Priority Date: 08/26/1987
  • Status: Expired due to Term
First Claim
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1. A disposable flexible bag for packaging a product which will not readily flow by gravity comprising at least three plies of flexible material sealed together at their peripheral edges, the plies forming an outer product wall, an intermediate product baffle wall, and an outer displacement wall, thereby providing a product-receiving chamber and a pressure-receiving chamber which are independent of each other, and coupling fitments comprising product and pressure fitments connected independently to the respective chambers, said fitments being mounted on one of said outer walls, and a sealing seam between the fitments which seals the outer wall on which they are disposed to the inner baffle wall so that the product fitment communicates with the product chamber and the pressure fitment communicates with the pressure chamber independently.

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