US PATENT SUBCLASS 417 / 208
.~ Vapor generator type

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

207  DF  BY HEATING OF PUMPED FLUID {1}
208.~ Vapor generator type {1}
209  DF  .~.~> With inlet valve

DEFINITION

Classification: 417/208

(under subclass 207) Apparatus in which the fluid to be pumped is a liquid, the application of heat to the liquid causing at least a portion thereof to vaporize, the vapor pressure then impelling the liquid through an outlet.