Resilient squeeze bottle employing air check valve which permits

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

1993-03-30

1994-06-07

Kashnikow, Andres

Dispensing

Collapsible wall-type container

With wall-collapsing means

222105, 222212, 2224815, B65D 3528, B65D 3700

Patent

active

053182049

ABSTRACT:
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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