Self cleaning apparatus for preparing aqueous air foams

Details Self cleaning apparatus for preparing aqueous air foams Self cleaning apparatus for preparing aqueous air foams

1989-06-23

1991-01-22

Jenkins, Robert W.

Agitating

Having specified feed means

Liquid injector within mixing chamber

239113, 2394275, 239432, B01F 504

Patent

active

049866672

ABSTRACT:
An apparatus for preparing a water-based air foam includes a mixing chamber for mixing two liquid components, and a nozzle which sprays the mixed liquid components toward a pair of screens within a compartment to produce a foam material. A portion of the first liquid component is diverted upstream of the mixing chamber and is sprayed by three nozzles into the compartment to continously wash away pre-gelled materials which might otherwise accumulate on a side wall surrounding the compartment.

REFERENCES:
patent: 553915 (1896-02-01), Karch
patent: 2143817 (1939-01-01), Longdin et al.
patent: 3388868 (1968-06-01), Watson et al.
patent: 3430865 (1969-03-01), McDougall
patent: 4086663 (1978-04-01), Croft
patent: 4107075 (1978-08-01), Kramer
patent: 4213936 (1980-07-01), Lodrick
patent: 4519338 (1985-05-01), Kramer et al.
patent: 4795764 (1989-01-01), Alm et al.

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