US PATENT SUBCLASS 417 / 136
.~.~.~.~ With control of pumped fluid inlet


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

Internet Version by PATENTEC © 1999      Terms of Use



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}
126  DF  .~.~ With float actuated control means {5}
134  DF  .~.~.~ Control of motive fluid outlet {2}
136.~.~.~.~ With control of pumped fluid inlet


DEFINITION

Classification: 417/136

(under subclass 134) Apparatus wherein said buoyant means further controls the flow of fluid which is pumped into the pumping chamber.