(under subclass 151) Subject matter wherein the vacuum at the inlet* is created by forcing conveying fluid into the fluid flow path at a point subsequent to the inlet*.
SEE OR SEARCH THIS CLASS, SUBCLASS:
61, for devices employing a fluid jet as a fluid current conveyor inlet which receives the load from a screw conveyor.
93, for a suction inducing fluid jet downstream of an inlet supplying additional fluid to the conveyor.