(under the class definition) Device comprising two or more closures, each mounted to move from a relatively extended, nonoverlapping passage blocking position to an inoperative, overlapping position at one side of the passage.
SEE OR SEARCH THIS CLASS, SUBCLASS:
44+, for a plural wing revolving door in which the wings fold against one another to form a through opening.
100+, for closures interconnected for concurrent movement which move from a stacked open position to an extended passage blocking position at different speeds.
124, for a closure consisting of extensible bar sections which stack in the open position of the closure.
SEE OR SEARCH CLASS
160, Flexible or Portable Closure, Partition, or Panel, 202, and subclass 218 for stacked closure sections each having interengagement with a following section, so that the first moved connects to and moves the second, and so forth.
