(under the class definition) Apparatus comprising a passage communicating with a space in the expansible chamber device other than the space which forms the working chamber, and valve means for said passage to control the egress of fluid from said space.
SEE OR SEARCH THIS CLASS, SUBCLASS:
8, for a means to control the flow of nonworking arresting fluid for a working member.
80, for force exerting means to move fluid from a nonworking chamber.
SEE OR SEARCH CLASS
123, Internal-Combustion Engines,
41.86, for crankcase ventilation of an internal combustion engine, including valve means to control the flow of fluid from the crankcase. 220, Receptacles,
44, for a vented closure for a container in which the closure includes a valve. Class 220 takes a nominally recited cylinder crankcase or engine block provided with a specific vented closure which includes a valve means.
