US PATENT SUBCLASS 184 / 47
.~.~.~ Balance piston

Current as of: June, 1999
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184 /   HD   LUBRICATION

14  DF  LUBRICATORS {18}
*  DD  .~ Force feed {5}
*  DD  .~.~ Followers {9}
47.~.~.~ Balance piston

DEFINITION

Classification: 184/47

There are two receptacles, and the followers are connected so that when one follower moves in one direction the other follower moves in the opposite direction.