AIR-ACTIVATED SEQUENCED VALVE SPLIT FOAM PUMP

摘要

Foam dispenser systems and pumps for use in foam dispenser systems are disclosed herein. A refill unit for refilling a foam dispenser system comprises a container for holding a supply of foamable liquid and a pump housing connected to the container. The pump housing comprises one or more connections for connecting to one or more external air pumps, wherein the air pumps supply air pressure to move the foamable liquid into a mixing chamber and to mix air with the liquid in the mixing chamber and create a foamy air-liquid mixture.

主权项

1. A refill unit for refilling a foam dispenser system, the refill unit comprising:
a container for holding a supply of foamable liquid; and a pump housing connected to the container, the pump housing comprising
a first connection for connecting to a first air source, wherein the first air source supplies air pressure to move the foamable liquid into a mixing chamber,a liquid charge chamber,a movable member from a first position to allow fluid to flow from the container to the liquid charge chamber to a second position that prevents fluid from flowing from the container to the liquid charge chamber;
wherein when the movable member is in the first position, a pathway from the liquid charge chamber to an outlet of the pump housing is closed off;wherein when the movable member is in the second position, the pathway from the liquid charge chamber to the outlet of the pump is open; anda second connection for connecting to a second air source, wherein the second air source supplies air pressure to mix air with the liquid in the mixing chamber and create a foamy air-liquid mixture.