AIR-VENTED LIQUID DISPENSERS AND REFILL UNITS THEREFOR

摘要

Air-vented liquid dispensers are disclosed herein, including refill units for use in connection with such dispensers. A cap is attached to the rigid container. A manifold of the refill unit is secured to the neck portion, and includes an air passage for air to enter into the container and a liquid passage for liquid to exit the container. In some embodiments, one of the cap and the container comprises a protrusion, and the other of the cap and the container comprises a seat for the protrusion, such that an interface between the protrusion and the seat forms an air vent pathway for the refill unit. In other embodiments, one of the cap and the container comprises a flexible and resilient valve member which in a rest position extends to contact the other of the cap and the container.

主权项

1. A refill unit for a liquid dispenser, the refill unit comprising:
a rigid container comprising a neck portion and an interior portion for holding a liquid; a cap attached to the rigid container so that the neck portion of the container extends into the cap; and a manifold secured to the neck portion with the cap, wherein the manifold comprises an air passage leading from a space between the container and the cap to the interior portion of the container, and a liquid passage leading from the interior portion of the container to a liquid outlet of the manifold; wherein one of the cap and the container comprises a protrusion, and the other of the cap and the container comprises a seat for the protrusion, such that an interface between the protrusion and the seat forms an air vent pathway for the refill unit.