US PATENT SUBCLASS 376 / 347
REACTOR STRUCTURES

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

347REACTOR STRUCTURES {7}
348  DF  .~> Fast thermal composite core
349  DF  .~> Flux flattening
350  DF  .~> Moderator component varies in its effective density or materials {1}
352  DF  .~> Orifice or fluid control at inlet or outlet of coolant channels
353  DF  .~> With particular control rod guide structure
354  DF  .~> Fuel material in contact with and supported by fluid {3}
361  DF  .~> Circulating fluid within reactor {6}

DEFINITION

Classification: 376/347

REACTOR STRUCTURES:

(under the class definition) Subject matter comprising the combination of two or more of the following structural

elements: moderator structure, fuel structure, coolant structure (including primary coolant, per se), or fuel support structure.

(1) Note. Subject matter of this subclass type includes, for example, thermal reactors, i.e., reactors which contain moderating material which, though not necessarily disclosed, reduces the energy of the neutrons to thermal energy, e.g., 2200 meters per second or 0.03 ev.

(2) Note. If a reactor is generically recited but is disclosed in the preferred embodiment as a type of reactor specifically provided for in the preceding subclasses, the original copy is placed in the appropriate subclass and a cross-reference copy may be placed in this subclass or in a subclass indented hereunder.

(3) Note. The coolant structure must be other than such structure built into the fuel structure. For such structures, see subclasses 424 and 439.

(4) Note. The fuel support structure of this subclass type is other than the support structure for fuel components, per se, as provided for, for example, in subclass 437.

(5) Note. Subject matter of this subclass type may include subcritical or neutrons amplifying reactor structures.

SEE OR SEARCH THIS CLASS, SUBCLASS: 171+, for breeder reactors.

340, for reactor structures with testing or irradiation facilities.

346, for epi-thermal reactors.

423, for the moderator enclosed together with the fuel.

458+, for moderator structure, per se.

904+, for specified materials used as moderator and coolant.

SEE OR SEARCH CLASS

165, Heat Exchange,

81+, for heat exchangers including expansion and contraction relieving or absorbing means.