Multi-stage venturi ejector and method of manufacture thereof

Details Multi-stage venturi ejector and method of manufacture thereof Multi-stage venturi ejector and method of manufacture thereof

1986-08-06

1988-12-13

Rosenbaum, Mark

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29157C, 29416, B23P 1300

Patent

active

047900547

ABSTRACT:
The method of manufacture of a multi-stage venturi ejector and body segments thereof which comprises forming an elongated extrusion having an ejector body cross-sectional shape with laterally extending mounting projections and axially extending internal air passages, cutting said extrusion transversely to form ejector body portions of predetermined length, enlarging said passages to a desired size and shape, forming venturi chambers at the front end of one set of air passages and providing check valve means at the other set of air passages, and assembling said body segments end to end.

REFERENCES:
patent: 3514231 (1970-05-01), Belden
patent: 3959864 (1976-06-01), Tell
patent: 4395202 (1983-07-01), Tell
patent: 4466778 (1984-08-01), Volkmann
patent: 4554956 (1985-11-01), Greenberg

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