Dual aspirator

Details Dual aspirator Dual aspirator

1996-03-20

1998-09-01

Kaufman, Joseph

Dispensing

Plural sources, compartment, containers and/or spaced jacket

Three or more diverse sources

2221452, 2221456, 222148, 222195, 137889, 137890, 137895, B67D 560

Patent

active

057998310

ABSTRACT:
A foaming system 10 includes a dual aspirator 13. The dual aspirator 13 has first and second aspirators 80 and 81 to pick up a first and second chemical concentrate. The diluent first chemical mixture is drawn in through the first aspirator 80 and goes through a first diffuser 46 where the first chemical/diluent mixture is further mixed. Similarly, diluent/chemical mixture is drawn by the second aspirator 81 and flows through a second diffuser 47 where it also is mixed. The two diluent/chemical mixtures then combine after exiting the diffusers and the compatible chemicals are then mixed by the flow of the diluent/chemical mixtures. Flushing lines 68 and 71 provide for cleaning of the dual aspirator 13. Further, the diffusers have a ratio of their diameter to length to aid in the prevention of contamination along with the use of two check valves 48 and 49.

REFERENCES:
patent: 3304564 (1967-02-01), Green et al.
patent: 3635601 (1972-01-01), Larson et al.
patent: 3756457 (1973-09-01), Holmes et al.
patent: 3941355 (1976-03-01), Simpson
patent: 4012822 (1977-03-01), Vrolyk et al.
patent: 4549676 (1985-10-01), Gerich
patent: 4778083 (1988-10-01), Decker
patent: 4860795 (1989-08-01), Oten
patent: 5270013 (1993-12-01), Decker

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