.~ Valve actuator extends laterally from bottom of riser
DEFINITION
Classification: 137/290
(under subclass 272) Apparatus in which the valve actuator has at least one element projecting in a generally horizontal direction adjacent the bottom of the riser, or comprises a linkage such that the resultant movement of the valve is in a generally horizontal direction.
SEE OR SEARCH CLASS
251, Valves and Valve Actuation,
213+, for mechanical movement valve actuators, especially subclass 279 for actuating linkages.