(under subclass 533) Apparatus including a piston or diaphragm, fluid from a master pump acting on one side of the piston or diaphragm to move it to pressurize a separate body of pulsator fluid on the other side.
SEE OR SEARCH THIS CLASS, SUBCLASS:
562, for a system in which the master piston of one pulsator circuit drives the master piston of a paralleled circuit through a resilient, fluid, or lost motion connection.
563+, for a structure in which initially communicating bodies of fluid on opposite sides of a diaphragm or piston are separated responsive to an increase in pressure, the diaphragm or piston then acting to pressurize the separated body of pulsator fluid.
575, for a system in which a temporary pulsator formed in a master structure by the closing of a condition or position responsive valve means drives a master piston.
