American Sterilizer Company

Charles E Hughes

David S Chapin

Steven G Palmer

Matthew Williams

An inner container is disposed within an outer container containing an amount of foamable liquid sufficient to provide a substantial foam production capacity. The dual-container foam dispenser is provided with a porous diffusing element having material surface characteristics optimally suited for diffusing pressurized air into stationary foamable liquid located within the inner container, thereby producing high-quality foam. The inner container is provided with an upper valve and a lower valve, each biased open by a return-action biasing force. The valves open to permit flow in either direction between the containers, depending upon system pressure changes during different stages in the foam production cycle, to prevent leakage of foam out of the device and to permit refilling the inner container.

Growing community of inventors

Raleigh, NC, United States of America

Charles E Hughes