FOAM DISPENSERS AND REFILL UNITS FOR FOAM DISPENSERS

摘要

A refill unit for a foam dispenser that has an air compressor permanently attached to the dispenser is provided herein. The refill unit includes a liquid container and a body portion having a first end and a second end. The first end of the body portion is fluidly coupled to the liquid container. A liquid chamber is located in the pump body, the liquid chamber having an expanded state and a contracted state. An outlet nozzle is located proximate a second end of the body portion. A mixing chamber is located within the body portion. An air inlet is located through the body portion and is in fluid communication with the mixing chamber. A sanitary seal is located proximate the air inlet. The sanitary seal allows air to enter into the mixing chamber and prevents liquid from traveling out of the body portion through the air inlet.