US PATENT SUBCLASS 303 / 32
.~ Equilibrium

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303 /   HD   FLUID-PRESSURE AND ANALOGOUS BRAKE SYSTEMS

28  DF  AUTOMATIC {13}
32.~ Equilibrium

DEFINITION

Classification: 303/32

The piston of the motor is held inactive between two equal pressures, the action of the motor occurring upon the expansion of compressed fluid on one side when the fluid on the other side is permitted to escape.