.~.~ Having distinct means for holding a pulsator element in set position {2}
569
.~.~.~ Distinct externally operable valve sealing pulse fluid in slave
DEFINITION
Classification: 60/569
(under subclass 568) Apparatus in which the securing means is a separate externally operable valve that prevents flow into or out of the slave.
SEE OR SEARCH CLASS
137, Fluid Handling,
598, for a hydraulic brake line with a valve to trap a column of liquid in the line having no structure specializing the system to brakes.
188, Brakes,
353, for a fluid pressure brake for a vehicle having means to trap fluid in the brake system to hold the brakes applied.
303, Fluid-Pressure and Analogous Brake Systems, 75+, for a fluid brake system having a valve for preventing release of the brakes and subclass 89 for a fluid brake system including a lock for maintaining parts in position of application or release.
