US PATENT SUBCLASS 137 / 246.11
.~.~ Plural feed

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


137 /   HD   FLUID HANDLING

237  DF  WITH CLEANER, LUBRICATION ADDED TO FLUID OR LIQUID SEALING AT VALVE INTERFACE {2}
246  DF  .~ Liquid supplied at valve interface {8}
246.11.~.~ Plural feed

DEFINITION

Classification: 137/246.11

(under subclass 246) Valves wherein plural feed means (other than gravity) are provided for the sealing liquid to cause flow thereof.