(under subclass 549) Dispensers having a nonapertured screw cap, i.e., the closure element has an annular, internally screw-threaded flange that surrounds and screws onto the outlet neck.
SEE OR SEARCH THIS CLASS, SUBCLASS:
489, for screw caps for closing a single passage into which plural passages merge.
519+, for apertured screw caps having axial and longitudinal motion.
546, for screw caps with an axial plug.
553, for other axially rotary caps. 562, for caps other than the screw type.
568, for nozzles, spouts and pouring devices with screw attaching means.
