Pressurized system for dispensing fluids

摘要

A bag-in-bag-in-bottle assembly formed by a flexible dispensing container with a dispensing fitment. The dispensing container is positioned adjacent or sandwiched between one or more flexible pressurization containers having a separate inlet/outlet path through a second fitment. The bag-in-bag assembly can then be placed in a containment vessel with the fitments mounted such that it is accessible on the vessel. A liquid can be extracted from the dispensing container by introducing a fluid into the pressurization container(s) with enough pressure to force the liquid out through the dispensing fitment. A contoured dispensing head may be coupled to the bag-in-bag-in-bottle assembly using a earn actuation arrangement for simultaneously locking the pressurization, vent and fluid extraction couplings.

主权项

1. A dispensing system for dispensing a liquid, comprising:
a dispense bag for containing said liquid and including a sheet of flexible material having an exterior surface; a pressurization bag substantially surrounding said dispense bag, said pressurization bag including a flexible inner portion and a flexible outer portion that cooperate to at least partially define an interior cavity therebetween, said flexible inner portion having an exterior surface exterior to said interior cavity and being in physical contact with said exterior surface of said sheet of flexible material of said dispense bag, said physical contact being on opposing sides of said dispense bag; a containment vessel having an inner surface that defines an interior chamber, said dispense bag and said pressurization bag being disposed within said interior chamber, said outer portion of said pressurization bag being confined by said inner surface of said containment vessel; a first fitment operably coupled with said dispense bag and adapted to route said liquid to or from said dispense bag; and a second fitment operably coupled with said pressurization bag and adapted to route a fluid to or from said pressurization bag, wherein said first fitment and said second fitment cooperate as a fitment assembly, said fitment assembly adapted to vent gas from said interior chamber of said containment vessel.