PUMPS WITH VENTS TO VENT INVERTED CONTAINERS AND REFILL UNITS HAVING NON-COLLAPSING CONTAINERS

摘要

Exemplary embodiments of refill units having foam pumps and non-collapsing containers are disclosed herein. In some exemplary embodiments, the refill unit includes a non-collapsing container and a foam pump. The foam pump includes a compressible air chamber. The foam pump includes a passage between the interior of the compressible air chamber and the interior of the container. A regulating valve regulates flow of air from the interior of the compressible air chamber to the interior of the container.

主权项

1. A refill unit comprising:
a non-collapsing container; a foam pump; the foam pump having a compressible air chamber; a passage between the interior of the compressible air chamber and the interior of the container; and a regulating valve regulating flow from the interior of the compressible air chamber to the interior of the container.