Foaming device

Details Foaming device Foaming device

1992-06-12

1993-12-14

Kashnikow, Andres

Dispensing

With material treatment or conditioning means

222211, 222209, 239346, B67D 500

Patent

active

052694445

ABSTRACT:
A foam dispensing device mixes a foamable liquid with compressed ambient air and dispenses a foam having the desired liquid-to-air ratio at an early time during foam dispension. The device, which has a vertical liquid conduit and a restricted air passage leading to a mixing chamber, also has two one-way pressure-activated valves to delay the flow of air and to accelerate the flow of liquid to the mixing chamber when the compressed air is introduced. The first valve is located in the liquid conduit below the air passage to prevent liquid from flowing down the tube, thereby accelerating the flow of liquid when the compressed air is introduced. The second valve is located above the air passage to delay air flow.

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