Apparatus for foaming a viscous material

Details Apparatus for foaming a viscous material Apparatus for foaming a viscous material

1998-09-15

1999-11-16

Bushey, C. Scott

Gas and liquid contact apparatus

Fluid distribution

Pumping

261 30, 261DIG26, B01F 304

Patent

active

059842806

ABSTRACT:
Low-pressure gas is mixed in a viscous material. The flow of the gas can be easily controlled so that the dispersion of the mixing ratio of the viscous material to the gas may be confined within a small tolerance and fine bubbles may be uniformly distributed in the interior of the viscous material. The gas is mixed in the viscous material by a first pump, from which a mixture of the gas and the viscous material is delivered. Pressure is applied to the mixture by a second pump. The gas is distributed in the interior of the viscous material by allowing the mixture under pressure to pass through a conduit assembly. The viscous material is foamed when the mixture is discharged from a nozzle through a discharge pipe.

REFERENCES:
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patent: 4337318 (1982-06-01), Doyle
patent: 4601645 (1986-07-01), Schmitkons
patent: 4632314 (1986-12-01), Smith et al.
patent: 4778631 (1988-10-01), Cobbs, Jr. et al.
patent: 4791142 (1988-12-01), Pleuse et al.
patent: 4915881 (1990-04-01), Straw et al.
patent: 5066428 (1991-11-01), Manlowe et al.

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