US PATENT SUBCLASS 376 / 291
.~.~.~ Concentric tubes or conduits with insulation

Current as of: June, 1999
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376 /   HD   INDUCED NUCLEAR REACTIONS: PROCESSES, SYSTEMS, AND ELEMENTS

277  DF  REACTOR PROTECTION OR DAMAGE PREVENTION {14}
287  DF  .~ Shield or barrier between radiation or heat source and object to be protected (e.g., insulation, thermal shield) {4}
289  DF  .~.~ Thermal insulation {2}
291.~.~.~ Concentric tubes or conduits with insulation

DEFINITION

Classification: 376/291

Concentric tubes or conduits with insulation:

(under subclass 289) Subject matter wherein the means to attenuate thermal radiation is or supported by set(s) of nested cylinders.