US PATENT SUBCLASS 29 / 890.032
.~.~ Heat pipe device making

Current as of: June, 1999
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29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
890.03  DF  .~ Heat exchanger or boiler making {15}
890.032.~.~ Heat pipe device making

DEFINITION

Classification: 29/890.032

Heat pipe device making:

(under subclass 890.03) Process wherein the article made is a heat-transfer device consisting of a sealed receptacle which absorbs radiant energy at one end by vaporization of a liquid and releases energy at the other end by condensation of the vapor.