Resilient squeeze bottle employing air check valve

Details Resilient squeeze bottle employing air check valve Resilient squeeze bottle employing air check valve

B - Operations, Transporting

65

D

B65D 83/62 (2006.01) B65D 83/00 (2006.01)

Patent

CA 2110411

2110411 9221589 PCTABS00017 A resilient squeeze bottle dispensing package including an internal flexible bag which is suitable for dispensing viscous product such as toothpaste, but which includes an air valve which will automatically permit pressure equilibration in the chamber formed between the flexible bag and the interior of the bottle in response to a decrease in the atmospheric pressure surrounding the package. Employing a valve which permits such automatic pressure equilibration avoids unwanted oozing of viscous product from the discharge orifice of the package when the atmospheric pressure surrounding the package decreases, e.g., as by airplane travel or by travelling from a first elevation to a second substantially higher elevation.

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