Aspirator

Details Aspirator Aspirator

1980-08-15

1983-01-11

Look, Edward K.

Pumps

One fluid pumped by contact or entrainment with another

Jet

417179, F04F 548

Patent

active

043680097

ABSTRACT:
An aspirator used to inflate flexible structures such as aircraft evacuation slides, rafts, or the like comprises a tubular housing an atmospheric air inlet at one end of the housing, a nozzle within the housing for introduction of high pressure gas downstream of said air inlet, flapper valve means closing the air inlet and operable to open when atmospheric air is induced through the inlet by operation of said nozzle, and means within the housing to operate a device to positively lock or unlock the flapper valve means when said nozzle is not operating or operating, respectively.

REFERENCES:
patent: 2480925 (1949-09-01), Hirst et al.
patent: 2772829 (1956-12-01), Crawford et al.
patent: 3042290 (1962-07-01), Fraebel
patent: 3598504 (1971-08-01), Siravo
patent: 3684404 (1972-08-01), Galbraith

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