Foam injection nozzle

Details Foam injection nozzle Foam injection nozzle

1977-03-14

1979-01-23

Wolk, Morris O.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Organic polymerization

252359E, 261DIG26, 366178, B29D 2702

Patent

active

041358821

ABSTRACT:
A nozzle for the injection of urea-formaldehyde foam insulation in a building includes a two-stage foaming chamber in the foam chemical line which includes a plurality of jets for effecting bubbling of the foaming chemical and a bubble-sizing, apertured plate positioned downstream of the jets to further enhance the foaming action of the chamber. The nozzle further includes a body into which the foaming agent is coaxially delivered with respect to an axailly extending resin injector. The end of the resin injector extends from the body of the nozzle and a flexible injection hose is removably attached to the end of the nozzle such that the resin and foaming agent mix in the flexible hose.

REFERENCES:
patent: 2766975 (1956-10-01), Herrod
patent: 3157361 (1964-11-01), Heard
patent: 3186959 (1965-06-01), Shriver et al.
patent: 3256067 (1966-06-01), Shriver et al.
patent: 3285007 (1966-11-01), Carlisle et al.
patent: 3618856 (1971-11-01), Sachnik
patent: 3711020 (1973-01-01), Zelna
patent: 3902850 (1975-09-01), Lehnert
patent: 4021386 (1977-05-01), Lindstrom
patent: 4038037 (1977-07-01), Wilmsen
patent: 4060572 (1977-11-01), Widmann

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