.~.~ Flexible membrane caused to move by fluid pressure {3}
150
.~.~.~ Control means for causing pulsation
DEFINITION
Classification: 601/150
Control means for causing pulsation:
(under subclass 148) Subject matter wherein the flexible membrane is provided with valve means regulated in a specific manner to distribute fluid flow to the membrane in a selected manner.
SEE OR SEARCH CLASS
137, Fluid Handling, particular subclasses for valve structures.