(under the class definition) Device comprising a closure mounted to bar a passage, and further provided with means to either (1) guide or point out the course of travel through the passage, (2) restrict travel through the passage to only one direction, or (3) regulate the number of persons permitted through the passage, e.g., at the same time.
SEE OR SEARCH THIS CLASS, SUBCLASS:
42+, for a revolving closure for directing or controlling traffic through a passage, especially subclasses 46+ for a turnstile.
68, for a passage which confines the path of travel of the user, and a series of closures for the passage, used successively by the traveler.
SEE OR SEARCH CLASS
105, Railway Rolling Stock,
341+, for a railroad car having an entrance or exit control. 222, Dispensing,
483, for a discharge controller interrelated with the movement or position of a plurality of closures.