US PATENT SUBCLASS 137 / 863
.~.~.~ For valve having a flexible diaphragm valving member

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

561 R  DF  SYSTEMS {32}
861  DF  .~ With flow control means for branched passages {8}
862  DF  .~.~ With common valve operator {8}
863.~.~.~ For valve having a flexible diaphragm valving member

DEFINITION

Classification: 137/863

For valve having a flexible diaphragm valving member:

(under subclass 862) Systems in which at least one flow control means comprises a pliant member which flexes relative to a rigid surface to control flow therebetween.