US PATENT SUBCLASS 141 / 287
.~ With gas expanded seal

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}
287.~ With gas expanded seal

DEFINITION

Classification: 141/287

(under subclass 285) Filling apparatus provided with means for effecting a seal between the filling means and the receiver and which seal is caused to expand by the presence of a gaseous material in the filling means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

46, for diverse fluid containing pressure filling systems in which the system fluid is used in a sealing operation.