Apparatus for making small bubble foam

Details Apparatus for making small bubble foam Apparatus for making small bubble foam

1978-06-05

1980-06-10

Marcus, Michael S.

Compositions

Preservative agents

Anti-corrosion

261DIG26, 366337, 366340, 422133, 422135, B01F 304, B01F 506

Patent

active

042072026

ABSTRACT:
Apparatus for making foam from water, air and surfactant produces very small bubble foam by discharging the ingredients for the foam through passages that cause the stream of ingredients to be alternately expanded and contracted as by travel along tortuous passages to generate the foam. The foam may be delivered to pipes of relatively large diameter to a place of use, particularly for dust suppression. A more uniform flow of foam is obtained as compared with foamers of the prior art where the foam sometimes broke up into alternating slugs of foam and air when discharged from pipes of large enough diameter to cause the foam to travel at low velocity.

REFERENCES:
patent: 2532565 (1960-12-01), Miller
patent: 3388868 (1968-06-01), Watson
patent: 3785620 (1974-01-01), Huber
patent: 3785781 (1974-01-01), Hervert et al.
patent: 3925252 (1975-12-01), Yabata
patent: 3965975 (1976-06-01), Edmandson
patent: 3983903 (1976-10-01), Kuehn Jr.
patent: 4000992 (1977-01-01), Cole, Jr.
patent: 4067696 (1978-01-01), Curtis
patent: 4068830 (1978-01-01), Gray
patent: 4078898 (1978-03-01), Fedor

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