(under subclass 162) Devices in which the top of the container is closed or there is a valve or openable closure closing the top or an opening adjacent the top.
(1) Note. There may be enclosed side openings near the top; but a mere bail is not considered to close the top.
SEE OR SEARCH THIS CLASS, SUBCLASS:
163, and 164, for receptacles with closed or valved tops and separate air chambers or destroyable closures and check valves.
SEE OR SEARCH CLASS
137, Fluid Handling,
205, for apparatus of general utility providing means whereby a container may be filled with liquid by evacuating the container.
