(under subclass 52) Subject matter wherein the load moving surface comprises a plurality of circumferentially spaced members or depressions, each of which defines by itself or along with a surrounding housing a chamber or cavity which rotates about a central axis, and isolates a quantity of the load from a supply.
SEE OR SEARCH THIS CLASS, SUBCLASS:
71, for rotary throwers.
74, for reciprocating trap chambers.
SEE OR SEARCH CLASS
222, Dispensing,
636, for fluid flow discharged dispensers having rotary trap chambers; and subclasses 367+ for other dispensers employing rotary trap chambers.
