US PATENT SUBCLASS 184 / 39
.~.~.~ Fluid-operated

Current as of: June, 1999
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184 /   HD   LUBRICATION

14  DF  LUBRICATORS {18}
*  DD  .~ Force feed {5}
*  DD  .~.~ Followers {9}
39.~.~.~ Fluid-operated {4}
39.1  DF  .~.~.~.~> Cyclical-type metered injector
40  DF  .~.~.~.~> Fluid return
41  DF  .~.~.~.~> Spring-assisted
42  DF  .~.~.~.~> Spring return

DEFINITION

Classification: 184/39

Fluid-operated:

The piston-follower is actuated by fluid pressure which urges it to move in one direction to force the lubricant out of its receptacle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

54, and 55.1+, for lubricators wherein the lubricant is subjected directly to a fluid pressure.

SEE OR SEARCH CLASS

123, Internal-Combustion Engines,

434+, for a charge forming device.

222, Dispensing,

389+, for a fluid pressure actuated discharge assistant.