(under the class definition) Dispensers in which there is associated with the outlet a tube, sleeve, or apertured cap, at least one of which is constrained to have both a motion of rotation about and a motion longitudinally of its own axis. The motion must be for some purpose other than or in addition to mere attachment or detachment.
SEE OR SEARCH THIS CLASS, SUBCLASS:
522+, for axially slidable devices of this type so mounted as to be capable of being rotated about its axis if desired, but having no means that requires this motion and including those having detent means which operate by rotation after an axial sliding motion. See the notes for related art.
549+, for flow controllers or closures not of tube, sleeve or apertured cap form and having this motion.
