US PATENT SUBCLASS 184 / 69
.~.~.~ Vibrators

Current as of: June, 1999
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184 /   HD   LUBRICATION

14  DF  LUBRICATORS {18}
65  DF  .~ Gravity feed {9}
66  DF  .~.~ Automatic cutoff {7}
69.~.~.~ Vibrators

DEFINITION

Classification: 184/69

The valve is usually a ball or some piece of metal of such shape that the valve seats and unseats due to the vibration of the machine to which the lubricator is attached.