(under subclass 565.11) Subject matter wherein means sensing the change in fluid force controls the effectiveness of pumped fluid flow. [figure] [caption]Figure 1: A typical example of the subject matter. A - Pump; B - Fluid pressure responsive valve; C - Pilot line; D - Fluid system.
SEE OR SEARCH THIS CLASS, SUBCLASS:
455+, for a valve controlled in response to a change in the fluid condition occurring within the system or the line including the valve and list for a self-controlled branched flow system including a bypass relief controlled by a main line condition.
SEE OR SEARCH CLASS
251, Valves and Valve Actuation,
28, for a fluid actuated pilot valve, subclasses 61+ for a flexible wall expansible chamber valve actuator, and subclasses 62+ for a piston-type expansible valve actuator.
417, Pumps, 295, for condition responsive pumped fluid control including inlet throttle or stop valve and subclasses 307+ for a pressure responsive relief or bypass valve.
