US PATENT SUBCLASS 141 / 308
.~.~ Air vent to supply cut-off by liquid in receiver

Current as of: June, 1999
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141 /   HD   FLUENT MATERIAL HANDLING, WITH RECEIVER OR RECEIVER COACTING MEANS

285  DF  MULTIPLE PASSAGE FILLING MEANS FOR DIVERSE MATERIALS OR FLOWS {10}
301  DF  .~ With valve {3}
308.~.~ Air vent to supply cut-off by liquid in receiver

DEFINITION

Classification: 141/308

(under subclass 301) Filling devices having a conduit which is open to the supply container and the ambient atmosphere within the receiver, together with a separate liquid conduit leading from the supply means, and in which liquid in the filled receiver acts to block the flow of air to the supply.

SEE OR SEARCH THIS CLASS, SUBCLASS:

309, for similar apparatus, not including a liquid flow line valve.