US PATENT SUBCLASS 505 / 888
.~ Refrigeration: (Class 62)

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.~ Refrigeration: (Class 62) {9}
889  DF  .~.~> Utilizing rare earth material
890  DF  .~.~> Heat pipe device
891  DF  .~.~> Magnetic or electrical effect cooling
892  DF  .~.~> Magnetic device cooling {1}
894  DF  .~.~> Cyclic cryogenic system (e.g., Sterling, Gifford-McMahon, etc.) {1}
896  DF  .~.~> Special refrigerant compound
897  DF  .~.~> Cryogenic media transfer
898  DF  .~.~> Cryogenic envelope
899  DF  .~.~> Method of cooling

DEFINITION

Classification: 505/888

Refrigeration: (Class 62):

(under subclass 825) Subject matter including (a) process or apparatus peculiar to removing heat from a substance; (b) the resultant product of part a; or (c) process or apparatus peculiar to handling the latter as a stored product.