US PATENT SUBCLASS 417 / 125
.~.~.~.~ Responsive to liquid level of pumped fluid

Current as of: June, 1999
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417 /   HD   PUMPS

65  DF  ONE FLUID PUMPED BY CONTACT OR ENTRAINMENT WITH ANOTHER {10}
118  DF  .~ Liquid pumped by supplying or exhausting gaseous motive fluid to or from pumping chamber {7}
122  DF  .~.~ Alternate pumping from plural pumping chambers {1}
123  DF  .~.~.~ Motive fluid in one chamber controlled by condition in second chamber {2}
125.~.~.~.~ Responsive to liquid level of pumped fluid

DEFINITION

Classification: 417/125

(under subclass 123) Apparatus wherein the condition is the liquid level of the fluid which is pumped in the first chamber.