Bag-in-bottle package with reusable resilient squeeze bottle and disposable inner receptacle which inverts upon emptying without attachment near its midpoint to squeeze bottle

A squeeze bottle package including a reusable outer squeeze bottle and a replaceable inner receptacle, the inner receptacle including a flexible bag having a dispensing passage, the flexible bag being adapted to house a viscous product and the inner receptacle being adapted to cause the flexible bag to invert upon itself substantially about its midpoint, the squeeze bottle comprising:

• (a) an outer squeeze bottle having a resiliently deformable side wall, an opening at the top end of the squeeze bottle adapted to accommodate the dispensing passage of the inner receptacle, and an opening at the bottom end of the squeeze bottle adapted to permit insertion of the entire inner receptacle therethrough when the inner receptacle is completely full of product;
• (b) a single closure means comprising a screw on end plate which is attached to an inner sleeve which extends to the top end of the package to push the top end of the inner receptacle against an interior surface of the squeeze bottle when screwed onto the bottom end of the package;
• and
• (c) a vent valve located in the outer squeeze bottle and adapted, when the inner receptacle is sealed therein, to substantially prevent air between the inner receptacle and the squeeze bottle from exiting the package when a squeezing force is applied to the resilient side wall so that produce is dispensed from the package through the discharge passage, and the vent valve being adapted to permit air to enter the space between the inner receptacle and the squeeze bottle upon release of the squeezing force.