US PATENT SUBCLASS 184 / 84
.~.~ Airtight receptacle

Current as of: June, 1999
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184 /   HD   LUBRICATION

14  DF  LUBRICATORS {18}
65  DF  .~ Gravity feed {9}
84.~.~ Airtight receptacle

DEFINITION

Classification: 184/84

The lubricant-container has only one opening. Upon being inverted the receptacle is air-tight, and the feed of the oil is regulated by the vacuum created in the top of the receptacle.