US PATENT SUBCLASS 505 / 890
.~.~ Heat pipe device

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}
888  DF  .~ Refrigeration: (Class 62) {9}
890.~.~ Heat pipe device

DEFINITION

Classification: 505/890

Heat pipe device:

(under subclass 888) Subject matter wherein the apparatus includes an intermediate fluent heat exchanger for removing thermal energy, which intermediate heat exchanger employs solid or particulate material.