(under subclass 133) Methods and means in which the material is subjected to the suspending or transporting effect of a horizontally-flowing current of gas or air and the components collected according to their relative displacement thereby.
SEE OR SEARCH THIS CLASS, SUBCLASS:
12.1, 19, 20, 24, 25, 32, and 33, for gaseous suspension separations employing a horizontal current combined with other types of separation.