US PATENT SUBCLASS 505 / 901
.~.~ Heat pipe

Current as of: June, 1999
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505 /   HD   SUPERCONDUCTOR TECHNOLOGY: APPARATUS, MATERIAL, PROCESS

825  DF  APPARATUS, PER SE, DEVICE, PER SE, OR PROCESS OF MAKING OR OPERATING SAME {36}
900  DF  .~ Heat exchange: (Class 165) {1}
901.~.~ Heat pipe

DEFINITION

Classification: 505/901

Heat pipe:

(under subclass 900) Subject matter wherein an intermediate fluent heat exchanger removes or transfers thermal energy, which intermediate heat exchanger employs solid or particulate material.