US PATENT SUBCLASS 60 / 658
.~.~ Damage to heat receiving element prevented by automatic means maintaining minimum flow

Current as of: June, 1999
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60 /   HD   POWER PLANTS

643  DF  MOTIVE FLUID ENERGIZED BY EXTERNALLY APPLIED HEAT {11}
657  DF  .~ Having apparatus cleaning, sealing, lubricating, purging, standby, or protecting feature {1}
658.~.~ Damage to heat receiving element prevented by automatic means maintaining minimum flow

DEFINITION

Classification: 60/658

(under subclass 657) Apparatus, in which damage to an element exposed to a high temperature heat source is prevented by condition responsive means that insures a sufficient flow of heat removing fluid through the element.