US PATENT SUBCLASS 60 / 568
.~.~ Having distinct means for holding a pulsator element in set position

Current as of: June, 1999
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60 /   HD   POWER PLANTS

325  DF  PRESSURE FLUID SOURCE AND MOTOR {47}
533  DF  .~ Pulsator {25}
568.~.~ Having distinct means for holding a pulsator element in set position {2}
569  DF  .~.~.~> Distinct externally operable valve sealing pulse fluid in slave
570  DF  .~.~.~> Mechanical latch, brake or detent

DEFINITION

Classification: 60/568

(under subclass 533) Apparatus including (1) means for mechanically securing a movable element of the system against movement or (2) a distinct valve sealing pulse fluid in an element to prevent its movement.