Dual-container foam dispenser

Details Dual-container foam dispenser Dual-container foam dispenser

1995-06-06

1998-03-10

Derakshani, Philippe

Dispensing

With material treatment or conditioning means

222195, 2611222, B67D 506

Patent

active

057251290

ABSTRACT:
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.

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