(under subclass 298) Devices in which the valve is mounted externally of the valve body and controls flow through the inlet or outlet.
SEE OR SEARCH CLASS
137, Fluid Handling,
614.01, for separable, valved, flow path sections wherein the closing-members seat against the same faces as those which abut when the sections are joined, the closing-members usually being in the nature of pivoted, terminal valves.
