Apparatus for making post-foaming gels and method

Details Apparatus for making post-foaming gels and method Apparatus for making post-foaming gels and method

1987-12-10

1989-08-15

Miles, Tim

Gas and liquid contact apparatus

With external supply or removal of heat

Heat exchange means at or downstream of contact zone

261 361, 261 82, 261DIG26, 422236, 422134, 366136, 366102, B01F 304

Patent

active

048572411

ABSTRACT:
An apparatus for making post-foaming gels comprising, a piston chamber having an outer case defining a chamber, a piston being slidably received in the case and separating the chamber into a first compartment adjacent one end of the case for retaining a gel base, and a second compartment adjacent the other end of the case for retaining a compressed gas, with said piston having a hollow stem extending out of the other end of the case. The apparatus has a device for circulating the gel base through the stem and first compartment, and a device for introducing a foaming agent to the gel base while it is being circulated throught the piston chamber.

REFERENCES:
patent: 1781435 (1930-11-01), Carper
patent: 1843157 (1932-02-01), Howe
patent: 3226099 (1965-12-01), Black et al.
patent: 3541581 (1970-11-01), Monson
patent: 4053283 (1977-10-01), Schneider et al.
patent: 4157427 (1979-06-01), Ferber
patent: 4159307 (1979-06-01), Shigeyasu et al.
patent: 4405489 (1983-09-01), Sisbarro
patent: 4482704 (1984-11-01), Luetzelschwab
patent: 4589452 (1986-05-01), Clanet

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