US PATENT SUBCLASS 406 / 178
.~.~.~ Serially arranged gates

Current as of: June, 1999
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406 /   HD   CONVEYORS: FLUID CURRENT

154  DF  FLUID CURRENT CONVEYOR OUTLET MEANS {5}
176  DF  .~ Having terminal {3}
177  DF  .~.~ With gate and means to open gate prior to article or carrier arrival {1}
178.~.~.~ Serially arranged gates

DEFINITION

Classification: 406/178

Serially arranged gates:

(under subclass 177) Subject matter wherein the terminal* is provided with a second movable closure subsequent to the first closure and defining a chamber therebetween.